# AIRWORTHINESS REQUIREMENTS CL−600−2B19



# Appendix B − Airworthiness Limitations Page 2B−1

Jun 10/13 Part 2 of Maintenance Requirements Manual Airworthiness Requirements 

# PART 2

APPENDIX B

AIRWORTHINESS LIMITATIONS CRJ200

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# Appendix B − Airworthiness Limitations Page 2B−2

Jun 10/13 Part 2 of Maintenance Requirements Manual Airworthiness Requirements 1. Airworthiness Limitations General

This appendix provides a complete listing of structural and systems Airworthiness Limitations

(AWL). The Airworthiness Limitations comprise a section of the Instructions for Continued

Airworthiness and list each mandatory replacement time and structural inspection interval arising

out of the Damage Tolerance certification activities and equipment qualification testing.

The Structural AWLs are applicable to the Principal Structural Elements (PSEs) of the primary

structure, which are identified in the Task Description column of the Structural Airworthiness

Limitations table in Appendix B.

For High Altitude Airfield Operation (HAAO) aircraft, an inspection interval has been defined for

selected AWL items. Refer to the Post−Modsum TC601R15827 inspection interval, where

applicable, in the Structural Airworthiness Limitations table.

The information contained in this appendix may be changed to reflect service and/or test

experience or new analysis methods. Any change(s) to task or intervals listed in this appendix

must be done in conjunction with the appropriate regulatory agency(ies).

The tasks are also listed in the Regional Jet Maintenance Review Board Report, Part 1, Section

3, Structures Maintenance Program, for reference purposes. The inspection thresholds and

repeat intervals are not listed in the MRB Report.

The Threshold period and Repeat inspection intervals are expressed in number of landings. A

flight is equivalent to a landing cycle. The Threshold period is the initial period of aircraft utilization

up to the first inspection. The Repeat inspection interval is the period between each subsequent

inspection.

The Threshold inspection shall be calculated from the time of aircraft manufacture (0 landings).

The Repeat inspection interval shall commence after the Threshold inspection is accomplished.

For AWL items that include an EFFECTIVITY statement (example; Post−Modsum TC601R15054

or Post−SB 601R−53−059), the Threshold inspection shall be calculated from the time of aircraft

modification, unless otherwise stated.

Inspections of AWL items can be accomplished at any time prior to reaching the specified

threshold and/or subsequent inspection intervals. However, if a task is carried out prior to the

specified airworthiness limitation in Part 2, the next subsequent interval starts counting

immediately.

2. Structural and Systems Component Life Limits General

The structural and systems discard times are also initial conservative estimates. The Structural

Life Limit discard times are to be calculated from the number of landings on the aircraft when the

component was installed.

For High Altitude Airfield Operation (HAAO) aircraft, a life limit has been defined for selected Main

Landing Gear (MLG) components. Refer to the STRUCTURAL LIFE LIMITS − HIGH ALTITUDE

AIRFIELD OPERATION (HAAO) − POST−MODSUM TC601R15827 AIRCRAFT ONLY" table for

Life Limit discard times applicable to HAAO aircraft.

The System Components Life Limits discard times are to be calculated from the number of Flight

Hours or APU Hours (as applicable) on the aircraft when the component was installed. The discard 

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# Appendix B − Airworthiness Limitations Page 2B−3

Jun 10/13 Part 2 of Maintenance Requirements Manual Airworthiness Requirements times apply to the part numbers and dash numbers as indicated in this appendix. As analysis and

testing continues, the times will be escalated or the discard requirement will be eliminated entirely.

3. Supplementary Requirements General

This appendix lists supplementary maintenance requirements from a variety of diverse sources,

such as Service Information Letters, Service Bulletins and Canadian issued Airworthiness

Directives applicable to the Regional Jet aircraft (CL600−2B19).

These listings are effective up to, and including, the latest Maintenance Requirements Manual

revision date.

The information contained in this appendix is to be used as a guide only and not to be construed

as all inclusive. Should a discrepancy occur between this Section and a regulatory authority

issued document, the latter will always take precedence.

4. Structural Repair Limitations General

This appendix lists inspection requirements for aircraft damaged during production or during fleet

operations. These inspections comprise a section of the Continued Airworthiness for the aircraft

indicated. The inspection level and inspection threshold/repeat intervals will be incorporated as

they become available. The inspection intervals for these limitations are to be calculated from the

landings at the time of repair.

5. Notes Applicable to the Airworthiness Limitations

NOTE 1 Interim value; Evaluation and test to continue.

NOTE 2 AC Motor Pump 601R75154−5 is replaced by 601R75154−7, which has no life

limit.

NOTE 3 This task is against optional equipment and may not be installed on all aircraft.

NOTE 4 Detailed Visual or Special Detailed Inspection may be chosen. However,

whichever inspection method is chosen, the method MUST be adhered to. An

operator cannot alternate between either method.

NOTE 5 Return to vendor for required inspection.

NOTE 6 Aircraft that have the option of limiting the maximum take−off weight (MTOW) to

52000 lb will apply the inspection program and life limits of the 53000 lb MTOW

aircraft.

NOTE 7 The part number listed is not serialized or the serial number is not visible

in−service. The operator can track the flight cycles on this sub−component by the

serial number of the next higher assembly, as identified in brackets within the Part

Name.

6. Safe Life of Landing Gear Components Re−Certified for Revised Maximum Take−Off Weight

(MTOW)

The Safe Life Limit of landing gear components re−certified for revised maximum take−off weight

(MTOW), are to be calculated using the following formula. 

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# Appendix B − Airworthiness Limitations Page 2B−4

Jun 10/13 Part 2 of Maintenance Requirements Manual Airworthiness Requirements A. TC/FAA Certified Aircraft

If a certified 53000 lb MTOW landing gear component is re−installed on a certified 51000 lb

MTOW aircraft and vice−versa, the maximum allowable number of flights for that component

is given by:



# N 1

A 1 N 2

A 2  1.0

(1) After multi−model service, the remaining allowable number of landings if the 53000 lb

or 51000 lb component is to be re−installed on a certified 51000 lb MTOW aircraft is:

Allowable remaining landings



#  A 1 

#  1

 N 2

A 2 

# 

 N 1

(2) After multi−model service, the remaining allowable number of landings if the 51000 lb

or 53000 lb component is to be re−installed on a certified 53000 lb MTOW aircraft is:

Allowable remaining landings



#  A 2 

#  1

 N 1

A 1 

# 

 N 2

Where,

N1 = Number of landings performed on aircraft certified to 51000 lb MTOW.

This can be zero if not applicable.

N2 = Number of landings performed on aircraft certified to 53000 lb MTOW.

This can be zero if not applicable.

A1 = TC/FAA Certification Life Limit for 51000 lb MTOW.

Reference MLG and NLG Structural Life Limits.

A2 = TC/FAA Certification Life Limit for 53000 lb MTOW.

Reference MLG and NLG Structural Life Limits.

See illustrative example in use of above formula.

NOTE: If a 53000 lb component is used for it’s entire life on a 51000 lb aircraft, it’s

life is ‘A1’ Landings or Flight Cycles.

B. JAA Certified Aircraft

If a certified 53000 lb MTOW landing gear component is re−installed on a certified 51000 lb

MTOW aircraft and vice−versa, the maximum allowable number of flights for that component

is given by:



# N 1

B 1 N 2

B 2  1.0 

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# Appendix B − Airworthiness Limitations Page 2B−5

Jun 10/13 Part 2 of Maintenance Requirements Manual Airworthiness Requirements (1) After multi−model service, the remaining allowable number of landings if the 53000 lb

or 51000 lb component is to be re−installed on a certified 51000 lb MTOW aircraft is:

Allowable remaining landings



#  B 1 

#  1

 N 2

B 2 

# 

 N 1

(2) After multi−model service, the remaining allowable number of landings if the 51000 lb

or 53000 lb component is to be re−installed on a certified 53000 lb MTOW aircraft is:

Allowable remaining landings



#  B 2 

#  1

 N 1

B 1 

# 

 N 2

Where,

N1 = Number of landings performed on aircraft certified to 51000 lb MTOW.

This can be zero if not applicable.

N2 = Number of landings performed on aircraft certified to 53000 lb MTOW.

This can be zero if not applicable.

B1 = JAA Certification Life Limit for 51000 lb MTOW.

Reference MLG and NLG Structural Life Limits.

B2 = JAA Certification Life Limit for 53000 lb MTOW.

Reference MLG and NLG Structural Life Limits.

See illustrative example in use of above formula.

NOTE: If a 53000 lb component is used for it’s entire life on a 51000 lb aircraft, it’s

life is ‘B1’ Landings or Flight Cycles.

C. Illustrative Example

Use data in the Structural Life Limits Table, which give the certified Safe Life Limits (TC/FAA

and JAA) of different components of the MLG and NLG, respectively, for different MTOW. For

this example, the JAA certified MLG Trailing Arm, P/N 17084−103 and the NLG Drag Brace

Assembly, P/N 601R85002−5 are selected.

LIFE LIMITED

COMPONENT B1

SAFE LIFE LIMIT

51000 LB MTOW B2

SAFE LIFE LIMIT

53000 LB MTOW

MLG Trailing Arm

P/N 17084−103 30911 Landings 22000 Landings

NLG Drag Brace

P/N 601R85002−5 21590 Landings 17812 Landings

The procedure will be illustrated through an example. Extract the final entry regarding MTOW

utilized, and number of landings for aircraft certified at 53000 lb MTOW. 

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# Appendix B − Airworthiness Limitations Page 2B−6

Jun 10/13 Part 2 of Maintenance Requirements Manual Airworthiness Requirements For example, the accumulated landings is N2 = 5000 landings (This number is the life cycle

used−up).

(1) 51000 lb MTOW (JAA Certified Aircraft):

After multi−model service, the remaining allowable number of landings if a component

is to be re−installed on a certified 51000 lb MTOW aircraft is:

Allowable remaining landings



#  B 1 

#  1

 N 2

B 2 

# 

 N 1

For MLG Trailing Arm;

# 30911 

#  1

 5000

22000 

# 

 0

 23886 landings

For NLG Drag Brace;

# 21590 

#  1

 5000

17812 

# 

 0

 15529 landings

NOTE: In above example;

N1 = 0 landings for aircraft re−certified to 51000 lb MTOW.

Fatigue Life Summary:

FATIGUE LIFE

USED−UP SAFE LIFE LIMIT

51000 LB MTOW REMAINING LIFE

7025 Landings

MLG Trailing Arm 30911 Landings 23886 Landings

6061 Landings

NLG Drag Brace 21590 Landings 15529 Landings

NOTE: The above formula calculates the remaining fatigue life of the component. The

combined results of the remaining fatigue life and the fatigue life used−up, add

up to the published safe life limit of the landing gear component.

The procedure will be illustrated through another example. Extract the final entry regarding

MTOW utilized, and number of landings for aircraft certified at 51000 lb MTOW.

For example, the accumulated landings is N1 = 5000 landings (This number is the life cycle

used−up).

(2) 53000 lb MTOW (JAA Certified Aircraft):

After multi−model service, the remaining allowable number of landings if a component

is to be re−installed on a certified 53000 lb MTOW aircraft is:

Allowable remaining landings



#  B 2 

#  1

 N 1

B 1 

# 

 N 2

For MLG Trailing Arm;

# 22000 

#  1

 5000

30911 

# 

 0

 18441 landings

For NLG Drag Brace;

# 17812 

#  1

 5000

21590 

# 

 0

 13686 landings 

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# Appendix B − Airworthiness Limitations Page 2B−7

Jun 10/13 Part 2 of Maintenance Requirements Manual Airworthiness Requirements NOTE: In above example;

N2 = 0 landings for aircraft re−certified to 53000 lb MTOW. 

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# Appendix B − Airworthiness Limitations Page 2B−8

Jun 10/13 Part 2 of Maintenance Requirements Manual Airworthiness Requirements D. Restrictions

The above formula apply strictly to CRJ−100/−200 landing gear components which have

been structurally qualified for use on both the 51000 lb and 53000 lb variants of the aircraft.

NOTE: The aircraft must have received re−certification at the revised aircraft weight with

the operator’s appropriate certification agency and is flying with the appropriate

aircraft flight manual. 

# CRJ200

PAGE PRINTED ON 4-15-2014AIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−9Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness Limitations53−11−12253−11−16−02 53−11−122Part 6Windshield center post andbulkhead aft post at FS202.75SpecialDetailed247057779 24705 7779Forward Fuselage53−11−122Part 9DetailedVisual24705 7779 247057779EFFECTIVITY:PHASE−IN:NOTE:INSPECTION INTERVALTHRESHOLD(LANDINGS)51000 lb MTOW 53000 lb MTOWTHRESHOLD(LANDINGS)REPEAT(LANDINGS)REPEAT(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERSTRUCTURAL AIRWORTHINESS LIMITATIONSPAGE FORMAT DESCRIPTIONAWL NUMBER53 − 11 − 1 22Sequence NumberSSI DesignationATA SectionATA ChapterMRB TASK REFERENCERelated MRBR structuresprogram task number (asapplicable).NDT MANUAL REFNDTM task number for eachinspection type (as applicable)Accomplish all tasks listedhere, unless otherwise stated.DESCRIPTIONSSI DescriptionEFFECTIVITYAWL task applicability byaircraft configuration.(Modsummary, Service Bulletin, etc.)PHASE−INTask incorporation schedulefor new or reduced inspectionintervals.NOTEAdditional or supplementaryinformation.INSPECTION TYPELevel of inspection(GVI, DI, SDI).Accomplish all taskslisted here, unlessotherwise stated.THRESHOLD(51000 lb MTOW)Time of first inspectionaccomplishment.REPEAT(53000 lb MTOW)Interval for secondand subsequentinspections.REPEAT(51000 lb MTOW)Interval for second andsubsequent inspections.THRESHOLD(53000 lb MTOW)Time of first inspectionaccomplishment.rmr0000000_005.dg, lr, dec13/2006CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−10Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsNDTINSPECTION INTERVALAWLNUMBERMRB TASKREFERENCENDTMANUALDESCRIPTIONINSPECTTYPE51000 lb MTOW53000 lb MTOWNUMBERREFERENCEREF.TYPETHRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)Pitch Trim Actuator27−40−101MSI 274001NOTE 5Horizontal stabilizer trim actuator assemblyEFFECTIVITY:P/N 8396−2 or 8396−3 or 8396−4SpecialDetailed4000040000400004000027−40−102MSI 27400127−40−102Part 7Pitch Trim ActuatorHorizontal stabilizer pitch trim actuator upper andlower installation pinsSpecialDetailed40000400004000040000Door52−11−10152−11−01−0252−11−03−0252−11−101Part 652−11−101Part 9Passenger door − internal and external structureEFFECTIVITY:Pre−Modsum TC601R13193SpecialDetailedDetailedVisual400004000040000400004000040000400004000052−11−10252−11−02−0252−11−102Part 9Passenger door − brackets, fittings and supportstructureEFFECTIVITY:Pre−Modsum TC601R13193DetailedVisual1380011950138001195052−11−103Incorporated with 52−11−10152−11−10452−11−01−0252−11−03−0252−11−101Part 652−11−104Part 9Phase IV Passenger door − internal and externalstructureEFFECTIVITY:Post−Modsum TC601R13193SpecialDetailedDetailedVisual4000040000225272252740000400002252722527CRJ200or 8396-5See Effective TRPAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−11Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE52−11−10552−11−02−0252−11−105Part 9Phase IV Passenger door − brackets, fittingsand support structureEFFECTIVITY:Post−Modsum TC601R13193DetailedVisual2363413307236341330752−11−13152−11−131Part 9Passenger door − piano hinge half on door sideDetailedVisual5700570057005700PHASE−IN:Do the Threshold (initial) inspection as follows:1. For aircraft with 3200 Flight Cycles (FC) orless, accomplish before 5700 FC.2. For aircraft with 3200 FC or more, accomplishwithin 2500 FC.NOTE:Subject to TC AD action.52−21−10252−21−02−0252−21−03−0252−21−102Part 9Overwing emergency exit doorEFFECTIVITY:Pre ModSum TC601R25121DetailedVisual1759610496175961049652−21−103Task deleted(Mod Sum TC601R25099 cancelled)52−21−10452−21−02−0252−21−03−0252−21−104Part 9Overwing emergency exit door(Post−Modsum TC601R25121 andPre−Modsum TC601R25160)DetailedVisual400009000400009000CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−12Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE52−21−10552−21−02−0252−21−03−0252−21−105Part 9Overwing emergency exit door castingEFFECTIVITY:Post Modsum TC601R25160DetailedVisual20000100020000100052−22−10252−22−02−0252−22−03−0252−22−102Part 9Crew escape hatch pin fittings, stop bracketsand support structureEFFECTIVITY:Pre−Modsum TC601R15019DetailedVisual2053820538205382053852−22−103N/A52−22−103Part 9Crew escape hatch pin fittings, stop bracketsand support structureEFFECTIVITY:Post−Modsum TC601R15019DetailedVisual40000400004000040000CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−13Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE52−31−10252−31−01−0252−31−02−0252−31−03−0252−31−102Part 9Cargo door structurePHASE−IN:For aircraft that have exceeded the reducedthreshold, do the initial inspection as follows:1. For aircraft with 14000 FC or less, accomplishbefore reaching 20000 FC.2. For aircraft with more than 14000 FC but lessthan or equal to 20000 FC, accomplish within6000 FC, but not later than 25000 FC.3. For aircraft with more than 20000 FC,accomplishwithin 5000 FC.NOTE:Subject to TC AD action.DetailedVisual2000020000200002000052−41−10252−41−02−0252−41−03−0252−41−102Part 9Service door fittings and back−up structureDetailedVisual4000034000400003400052−41−103Incorporated with 52−41−10252−42−102Incorporated with 52−42−10352−42−103N/A52−42−103Part 9Avionics compartment door fittings and back−upstructureDetailedVisual40000400004000040000CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−14Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEForward Fuselage53−11−10153−11−18−0253−11−20−0253−11−101Part 9NLG and drag strut, trunnion fittings and localbeam structure[1] Pre−Modsum TC601R15827[2] Post−Modsum TC601R15827DetailedVisual27000 [1]18000 [2]25250 [1]16833 [2]27000 [1]18000 [2]25250 [1]16833 [2]53−11−10253−11−19−0253−11−102Part 9NLG wheel well, vertical stiffener lowerattachmentDetailedVisual4000040000400004000053−11−10353−11−19−0253−11−103Part 9NLG wheel well upper cap angles betweenFS202.75 and FS235.0DetailedVisual4000040000400004000053−11−10453−11−10−0253−11−104Part 9Flight compartment floor connection to theforward pressure bulkhead at FS202.75DetailedVisual4000040000400004000053−11−10653−11−02−0253−11−106Part 9Forward pressure bulkheadEFFECTIVITY:Pre Modsum TC601R18027 or Pre SB601R−53−073DetailedVisual1487414874148741487453−11−10853−11−03−0253−11−108Part 9Frame FS235.0 lower sector web and caps[1] Pre−Modsum TC601R15827[2] Post−Modsum TC601R15827DetailedVisual40000 [1]40000 [2]24700 [1]16467 [2]40000 [1]40000 [2]24700 [1]16467 [2]53−11−11053−11−06−0253−11−07−0253−11−14−0253−11−110Part 9Flight crew escape hatch surround structure andstop fittingsDetailedVisual1331012750125571202853−11−111Incorporated with 53−11−11253−11−11253−11−03−0253−11−112Part 9Fuselage skin FS212.0 to FS280.0 at cockpitfloor levelDetailedVisual40000200004000018868CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−15Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE53−11−12153−11−16−0253−11−121Part 6Cockpit side window aft end post (framingmember) at bulkhead FS280.0SpecialDetailed4000010500400001050053−11−12253−11−16−0253−11−122Part 653−11−122Part 9Windshield center post and bulkhead aft post atFS202.75EFFECTIVITY:(Pre Modsum TC601R15021) and(Pre Modsum TC601R18027 or Pre SB601R−53−073)PHASE−IN:For aircraft that have exceeded the reducedthreshold, do the initial threshold inspection asfollows:1. For aircraft with 21705 FC or less, inspectbefore24705 FC.2. For aircraft with 21706 FC to 24705 FC,inspectwithin 3000 FC, but not later than 26705 FC.3. For aircraft with 24706 FC or more, inspectwithin2000 FC.NOTE:Subject to TC AD action.SpecialDetailedDetailedVisual247052470577797779247052470577797779CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−16Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE53−11−12353−11−05−0253−11−123Part 653−11−123Part 9Windshield side post upper and lower joints tosills and fuselage fittingsEFFECTIVITY:Pre Modsum TC601R18049SpecialDetailedDetailedVisual400004000011500115004000040000108491084953−11−124N/A53−11−124Part 9NLG wheel well skin cut−out at FS235.0 andBL 6.0[1] Pre−Modsum TC601R15827[2] Post−Modsum TC601R15827DetailedVisual17435 [1]11623 [2]17435 [1]11623 [2]16448 [1]10965 [2]16448 [1]10965 [2]53−11−126Note 3N/A53−11−126Part 9Flitefone VI antenna cut−out at FS250.0, Str. 26DetailedVisual4000013120400001237753−11−12753−11−02−0253−11−127Part 653−11−127Part 9Windshield center post and bulkhead aft post atFS202.75EFFECTIVITY:Post−Modsum TC601R15021SpecialDetailedDetailedVisual24705247057779777924705247057779777953−11−12853−11−02−02Forward pressure bulkheadEFFECTIVITY:Post Modsum TC601R18027 or Post SB601R−53−073DetailedVisual4000018400400001840053−11−12953−11−16−0253−11−129Part 653−11−129Part 9Windshield center post and bulkhead aft post atFS202.75EFFECTIVITY:(Post Modsum TC601R15021) and(Post Modsum TC601R18027 or Post SB601R−53−073)SpecialDetailedDetailedVisual400004000080478047400004000080478047CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−17Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE53−11−13053−11−16−02Windshield center post and bulkhead aft post atFS202.75EFFECTIVITY:(Pre Modsum TC601R15021) and(Post Modsum TC601R18027 or Post SB601R−53−073)SpecialDetailedDetailedVisual400004000010847108474000040000108471084753−11−13153−11−16−02Windshield side post upper and lower joints tosills and fuselage fittingsEFFECTIVITY:Post Modsum TC601R18049SpecialDetailedDetailedVisual4000040000115001150040000400001084910849Forward/Mid Fuselage53−21−10153−21−01−0253−21−101Part 9Passenger door cut−out upper and lower sillsEFFECTIVITY:Pre−Modsum TC601R13193DetailedVisual2150017755202831675053−21−10253−21−02−0353−21−102Part 9Passenger door cut−out frames and internalback−up structureEFFECTIVITY:Pre−Modsum TC601R13193NOTE:Subject to TC AD action.DetailedVisual4000022900400002085053−21−10353−21−03−0253−21−103Part 9Passenger door fittings on fuselageEFFECTIVITY:Pre−Modsum TC601R13193DetailedVisual382582688382582688CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−18Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE53−21−107Incorporated with 52−41−10253−21−10853−21−08−0353−21−108Part 9Service door cut−out support frames, sills andback−up structureDetailedVisual1394313943131531315353−21−11053−21−09−0253−21−10−0253−21−110Part 9Avionics compartment door cut−out surroundingstructureDetailedVisual4000019625392921851453−21−11553−21−15−0253−21−115Part 9Fuselage structure from FS280.0 to FS409.0above the floorNOTE:Subject to TC AD action.DetailedVisual4000040000400004000053−21−11853−21−18−0253−21−118Part 9Potable water servicing door cut−out andinternal structureNOTE:Subject to TC AD action.DetailedVisual2738310667258331006353−21−11953−41−52−0253−21−119Part 9Forward or rear lavatory servicing door cut−outand internal structureDetailedVisual2776713083261951234353−21−125N/A53−21−125Part 653−21−125Part 9Circumferential fuselage splice at FS280.0SpecialDetailedDetailedVisual400004000011123111234000040000104931049353−21−12653−21−01−0253−21−126Part 9Phase IV passenger door cut−out upper andlower sills (Post Modsum TC601R13193)DetailedVisual107507969101427518CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−19Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE53−21−12753−21−02−0353−21−127Part 9Phase IV passenger door cut−out frames andinternal back−up structureEFFECTIVITY:Post Modsum TC601R13193NOTE:Subject to TC AD action.DetailedVisual400001086540000983353−21−12853−21−03−0253−21−128Part 9Phase IV passenger door fittings on fuselageEFFECTIVITY:Post−Modsum TC601R13193DetailedVisual19738101319738101353−21−12953−21−129Part 9Passenger door − piano hinge half on fuselagesideDetailedVisual5700570057005700PHASE−IN:Do the Threshold (initial) inspection as follows:1. For aircraft with 3200 Flight Cycles (FC) orless, accomplish before 5700 FC.2. For aircraft with 3200 FC or more, accomplishwithin 2500 FC.NOTE:Subject to TC AD action.Center Fuselage53−41−10153−41−05−0253−41−101Part 9ADF antenna and DME antenna cut−outsDetailedVisual400001337032000840953−41−102Incorporated with 53−41−109CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−20Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE53−41−10353−41−06−0253−41−103Part 9Emergency light cut−out in the exterior sidepanel, FS409.0 to FS409.0 +128DetailedVisual4000040000400004000053−41−10453−41−42−0253−41−51−0353−41−104Part 9Forward keel beam bayonet fittingsDetailedVisual4000021513400001353053−41−106Incorporated with 53−41−10853−41−10753−41−11−0253−41−107Part 9VHF antenna cut−out at FS455.8, Str . 0DetailedVisual4000014195400001203053−41−10853−41−11−0253−41−108Part 9Skin at STR 5 and frames FS424.0, FS449.0,FS473.0, and FS513.0DetailedVisual4000036880400002319553−41−10953−41−11−0253−41−109Part 6Longitudinal Str. 6 splice at STR 6 and 20NOTE:AWL 53−41−109 or 53−41−205 may bechosen. Wichever task is chosen, the task MUSTbe adhered to. An operator cannot alternatebetween either task.SpecialDetailed40000200040000200053−41−11053−41−11−0253−41−110Part 6Longitudinal Str. 6 splice butt strap at Str. 6,FS409.0 to FS617.0SpecialDetailed4000040000400004000053−41−11153−41−13−0253−41−111Part 9Skin panel at machined frames, FS409.0 +128to FS559.0[1] Pre−Modsum TC601R15827[2] Post−Modsum TC601R15827DetailedVisual40000 [1]40000 [2]14095 [1]9397 [2]40000 [1]40000 [2]13297 [1]8865 [2]53−41−11253−41−13−0253−41−112Part 9Emergency light cut−outs in side skin panel −FS409.0 +128 to FS559.0DetailedVisual4000040000400004000053−41−113Incorporated with 53−41−11953−41−114Incorporated with 53−41−119CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−21Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE53−41−115Superceded by SSI 53−41−177, 53−41−178and 53−41−179CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−22Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE53−41−11653−41−15−0253−41−18−0253−41−116Part 9Vertical beams on frame FS409.0 +128 andframe FS559.0DetailedVisual14906128231490612823NOTE:1. For aircraft that have exceeded the reducedthreshold/repeat interval, comply with thethreshold (initial) inspection as follows:A. For aircraft with 10906 flight cycles orless, inspect prior to exceeding 14906flight cycles.B. For aircraft with more than 10906 flightcycles, but no more than 14906 flightcycles, inspect within the next 4000 flightcycles but not exceeding 17906 flightcycles.C. For aircraft with more than 14906 flightcycles, but no more than 20406 flightcycles, inspect within the next 3000 flightcycles but not exceeding 21906 flightcycles.D. For aircraft with more than 20406 flightcycles, inspect within the next 1500 flightcycles.2. Phase−in time of an Airworthiness Directive(AD) will take precedence to the above.53−41−117Incorporated with 53−41−15553−41−118Incorporated with 53−41−124CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−23Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE53−41−11953−41−14−0253−41−119Part 6Frame FS409.0 +128 and frame FS559.0 local tothe floor levelSpecialDetailed32590157952785513273PHASE−IN:Do the Threshold (initial) inspection as follows:1. For aircraft with 22855 Flight Cycles (FC) orless, accomplish before 27855 FC.2. For aircraft with 22856 FC to 27855 FC,accomplish within 5000 FC, but not later than31855 FC.3. For aircraft with 27856 FC or moreaccomplish within 4000 FC.NOTE:Subject to TC AD action.53−41−12053−41−17−0253−41−120Part 6Frame FS559.0 splice at Str. 0SpecialDetailed32515649530675612753−41−121Incorporated with 53−41−15553−41−122Incorporated with 53−41−11653−41−123Incorporated with 53−41−11553−41−12453−41−19−0253−41−124Part 9Bulkhead webs at frame FS559.0 and at frameFS409.0 +128DetailedVisual1832518325183251832553−41−12553−41−20−0253−41−125Part 9Overwing emergency exit, door cut−out, framesand internal back−up structureDetailedVisual40000400004000040000CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−24Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE53−41−12653−41−21−0253−41−126Part 6Cabin window surround structurePre−modsum TC601R12201SpecialDetailed10047100471004710047Note:SSI 53−41−126 is applicable to thePre−Modsum TC 601R12201 aircraft andincludes both Pre and Post Service Bulletin601R−53−025 incorporationNote:For aircraft that have exceeded the thresholdperiod of 10 047 flights and for aircraft that haveaccumulated more than 9697 flights, a phase−inperiod of 1350 flights is allowed from Nov. 08/98The second inspection shall occur at 20 094flights since production delivery and allsubsequent repeat inspections shall remain atthe established 10 047 flights intervals.Note:For aircraft that have incorporated the ServiceBulletin 601R−53−025, at the option of theoperator, the threshold inspection shall be10 047 flights from the time of incorporation ofthe Service Bulletin.53−41−12753−41−22−0153−41−127Part 6Circumferential fuselage joint at frame FS559.0SpecialDetailed258801172021932922853−41−12853−41−23−0153−41−128Part 6Circumferential fuselage joint at frame atFS409.0 +128SpecialDetailed258801172021932922853−41−130Incorporated with 53−41−11053−41−131Incorporated with 53−41−139CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−25Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE53−41−13253−41−25−0253−41−132Part 6Frame FS424.0 and FS513.0 inner and outercaps from STR 14 to WL73.0[1] Pre−Modsum TC601R15827[2] Post−Modsum TC601R15827SpecialDetailed40000 [1]40000 [2]12147 [1]8098 [2]40000 [1]40000 [2]7639 [1]5093 [2]53−41−13353−41−26−0253−41−133Part 9Frame FS424.0 wing attachment lugs[1] Pre−Modsum TC601R15827[2] Post−Modsum TC601R15827DetailedVisual40000 [1]40000 [2]10135 [1]6757 [2]40000 [1]40000 [2]8108 [1]5405 [2]53−41−13453−41−27−0253−41−134Part 9Frame FS449.85 inner cap from Str. 8 to Str. 11DetailedVisual400001277940000803753−41−136Incorporated with 53−41−13953−41−137Incorporated with 53−41−13953−41−13853−41−29−0253−41−138Part 9Frame FS473.15 wing attachment lug[1] Pre−Modsum TC601R15827[2] Post−Modsum TC601R15827DetailedVisual40000 [1]40000 [2]10135 [1]6757 [2]40000 [1]40000 [2]6374 [1]4249 [2]53−41−13953−41−30−0253−41−139Part 9Frames FS424.0, FS473.0 and FS513.0DetailedVisual4000040000400004000053−41−140Incorporated with 53−41−13253−41−141N/A53−41−141Part 453−41−141Part 6Frame FS513.0 under floor BL 0.0 spliceEFFECTIVITY:Pre Modsum TC601R14160 or Pre−ServiceBulletin 601R−29−020SpecialDetailed113875093113875093CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−26Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE53−41−142N/A53−41−142Part 9Frame FS513.0, BL13.1, wing attachment fitting[1] Pre−Modsum TC601R15827[2] Post−Modsum TC601R15827DetailedVisual40000 [1]32311 [2]10135 [1]6757 [2]38773 [1]25849 [2]6374 [1]4249 [2]53−41−14553−41−33−0253−41−145Part 6Overwing floor support beam at FS460.0SpecialDetailed40000705840000659753−41−14653−41−34−0253−41−146Part 6Pressure floor skin access panel cut−outsSpecialDetailed4000028460400002846053−41−147Incorporated with 53−41−14653−41−148Incorporated with 53−41−155CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−27Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE53−41−149N/A53−41−149Part 9Pressure floor skinEFFECTIVITY:(Pre Modsum TC601R25208) or(Pre Modsum TC601R25274 or Pre SB601R−53−067) or(Pre Modsum TC601R25336 or Pre SB601R−53−077) or(Pre Modsum TC601R25337)PHASE−IN:For aircraft that have exceeded the reducedthreshold/repeat interval, comply with thethreshold (initial) inspection as follows:1. For aircraft with 8000 flight cycles or less,inspect prior to exceeding 10000 flight cycles.2. For aircraft with more than 8000 flight cycles,but less than 10000 flight cycles,inspect within the next 2000 flight cycles.3. For aircraft with 10000 flight cycles or more,but less than 15000 flight cycles,inspect within the next 1500 flight cycles.DetailedVisual10000100001000010000CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−28Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE53−41−1494. For aircraft with 15000 flight cycles or more,but less than 17325 flight cycles,inspect within the next 1000 flight cycles.5. For aircraft with 17325 flight cycles or more,but less than 18325 flight cycles,inspect prior to exceeding 18325 flight cycles.6. For aircraft that have completed theinspection at 18325 flight cycles,inspect at the repeat interval above.NOTE:Phase−In time of an Airworthiness Directive (AD)will take precedence to the above.53−41−15053−41−36−0253−41−150Part 9Pressure floor support beamsDetailedVisual3707037070370703707053−41−151Incorporated with 53−41−15053−41−152Incorporated with 53−41−15053−41−154Incorporated with 53−41−15053−41−15553−41−38−0253−41−155Part 9Pressure floor sill member FS409.0 +128 toFS559.0DetailedVisual40000846540000532453−41−15653−41−38−0253−41−156Part 9Pressure floor intercostalsDetailedVisual4000016540400001040353−41−15753−41−39−0253−41−157Part 9Frame attachment to sill and longeronDetailedVisual4000040000400003875253−41−158N/A53−41−158Part 9Underfloor longeron assembly − FS409.0 +128DetailedVisual40000400004000040000CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−29Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE53−41−159N/A53−41−159Part 9Longeron at FS424.0[1] Pre−Modsum TC601R15827[2] Post−Modsum TC601R15827DetailedVisual30040 [1]20027 [2]7230 [1]4820 [2]24032 [1]16021 [2]4547 [1]3031 [2]PHASE−IN:Do the Threshold (initial) inspection as follows:1. For aircraft with 21032 Flight Cycles (FC) orless, accomplish before 24032 FC.53−41−1592. For aircraft with 21033 FC to 24032 FC,accomplish within 3000 FC, but not later than26032 FC.3. For aircraft with 24033 FC to 26032 FC,accomplish within 2000 FC, but not later than27032 FC.4. For aircraft with 26033 FC or moreaccomplish within 1000 FC.NOTE:Subject to TC AD action.53−41−16153−41−40−0253−41−161Part 6Underfloor, BL45.0, longeron lower flange[1] Pre−Modsum TC601R15827[2] Post−Modsum TC601R15827SpecialDetailed40000 [1]40000 [2]10767 [1]7178 [2]40000 [1]40000 [2]9362 [1]6242 [2]53−41−162Incorporated with 53−41−16353−41−16353−41−40−0253−41−163Part 9Underfloor, BL45.0, longeron upper flange andwebNOTE:Subject to TC AD action.DetailedVisual40000400004000040000CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−30Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE53−41−164Incorporated with 53−41−10453−41−16553−41−48−0253−41−165Part 9Upper skin panel FS559.0 to FS559.0 +112DetailedVisual40000591040000371753−41−16653−41−66−0253−41−166Part 9Side skin panel FS559.0 to FS559.0 +112DetailedVisual4000040000400004000053−41−167Incorporated with 53−41−10453−41−168Incorporated with 53−41−149 and 53−41−15553−41−169Incorporated with 53−41−12553−41−171Note 353−41−07−0353−41−171Part 9Oxygen indicator cut−out at FS409.0 +80,Str. 24DetailedVisual400001075040000676153−41−176Note 353−41−05−0253−41−176Part 9GPS antenna cut−outs (dual and single antennainstallation), between FS409.0+32 andFS409+48 and Str 1L and 1RDetailedVisual40000550040000550053−41−17753−41−15−0253−41−177Part 9Keel beam cutout at FS409.0 +128 (Post ModSum TC601R14465 or Post Service Bulletin601R−53−047)DetailedVisual45004504500450NOTE:This SSI is superseded by SSI 53−41−184 andSSI 53−41−185 if Mod Sum TC601R14589 orService Bulletin 601R−53−050 is incorporatedbefore 5 400 flight cycles from incorporation ofService Bulletin 601R−53−047 or Mod SumTC601R14465. The incorporation limit can beextended from 5 400 to 7 000 flight cycles if thespecial inspection from Appendix C of ServiceBulletin 601R−53−050 is completed whenService Bulletin 601R−53−050 is incorporated.CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−31Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEThe threshold inspection interval for SSI53−41−177 starts from the incorporation ofService Bulletin 601R−53−047 or Mod SumTC601R14465.53−41−178Incorporated with 53−41−124CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−32Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE53−41−17953−41−15−0253−41−179Part 9Keel beam cut−out at FS 409+128(Post Mod Sum TC601R25125, TC601R25126,and TC601R25127)DetailedVisual23530235302353023530NOTE: SSI 53−41−179 applies to aircraft thatincorporates all three Mod SumsTC601R25125, TC601R25126, andTC601R25127.This SSI 53−41−179 is superseded bySSI 53−41−180 if Service Bulletin601R−53−050 is incorporated before8 000 flight cycles from aircraft delivery.53−41−180N/AStrap modification to the FS 409 +128 bulkhead(Post Mod Sums TC601R25125, TC601R25126,and TC601R25127 with reinforcing strap)DetailedVisual40000400004000040000NOTE:This SSI 53−41−180 applies to aircraft whichhave incorporated all three Mod SumsTC601R25125, TC601R25126, andTC601R25127, and have either:I. Incorporated Mod Sum TC601R25128before aircraft delivery, orII. Incorporated Service Bulletin601R−53−050 before 8 000 flight cyclesfrom aircraft delivery.The threshold inspection interval forSSI 53−41−180 starts from aircraft delivery.CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−33Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE53−41−182N/A53−41−182Part 453−41−182Part 6Frame FS 513.0 under floor BL 0.0 splicepost Modsum TC601R14160 and post ServiceBulletin 601R−29−020SpecialDetailed4000038253400003825353−41−183N/A53−41−183Part 6Cabin window surround structure(Post Modsum TC601R12201)NOTE:AWL 53−41−183 is not applicable to SB601R−53−025 incorporation. Refer to AWL53−41−126 for Pre or Post SB 601R−53−025incorporation.SpecialDetailed2111310047211131004753−41−184N/A53−41−184Part 6Strap modification to the FS 409+128 bulkhead(Post Mod Sum TC 601R14589 or Post ServiceBulletin 601R−53−050).SpecialDetailed40000400004000040000NOTE:SSI 53−41−184 applies to aircraft which havenot incorporated TC601R25125, TC601R25126,and TC601R25127 and have satisfied any one ofthe following conditions:I. Incorporated SB 601R−53−050 within 5 400flight cycles from the incorporation of SB601R−53−047 or Mod Sum TC601R14465.CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−34Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE53−41−184II. Incorporated SB 601R−53−050 within 7 000flight cycles from the incorporation ofSB 601R−53−047 or Mod SumTC601R14465, and received the specialinspection from Appendix C ofSB 601R−53−050 when SB 601R−53−050was incorporated.III. Incorporated SB 601R−53−050 within 8 000flight cycles from incorporation ofSB 601R−53−046, REO 601R−53−31−012(and deviations), REO 601R−53−31−019 orAir Canada Drawing 53−10002.IV. Incorporated SB 601R−53−050 within 20 000flight cycles from the incorporation ofSB 601R−53−046, REO 601R−53−012(and it’s deviations), REO 601R−53−31−019or Air Canada Drawing 53−10002, andreceived the special inspection fromAppendix C of SB 601R−53−050 whenSB 601R−53−050 was incorporated.Compliance with AWL 53−41−184 inspectionthreshold becomes effective from theincorporation of the following:I. For in−service aircraft, rework or repairaccording to SB 601R−53−046,SB 601R−53−047, REO 601R−53−31−012(or it’s deviations), REO 601R−53−31−019or Air Canada Drawing 53−10002.II. For production aircraft, rework according toMod Sum TC601R14465.CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−35Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE53−41−185N/A53−41−185Part 9Strap modification to the FS 409+128 bulkhead(Post Mod Sum TC 601R14589 or Post ServiceBulletin 601R−53−050).DetailedVisual40000118604000011860NOTE:SSI 53−41−185 applies to aircraft which havenot incorporated TC601R25125, TC601R25126,and TC601R25127 and have satisfied any one ofthe following conditions:I. Incorporated SB 601R−53−050 within 5 400flight cycles from the incorporation of SB601R−53−047 or Mod Sum TC601R14465.II. Incorporated SB 601R−53−050 within 7 000flight cycles from the incorporation ofSB 601R−53−047 or Mod SumTC601R14465, and received the specialinspection from Appendix C ofSB 601R−53−050 when SB 601R−53−050was incorporated.III. Incorporated SB 601R−53−050 within 8 000flight cycles from incorporation ofSB 601R−53−046, REO 601R−53−31−012(and deviations), REO 601R−53−31−019 orAir Canada Drawing 53−10002.CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−36Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE53−41−185IV. Incorporated SB 601R−53−050 within 20 000flight cycles from the incorporation ofSB 601R−53−046, REO 601R−53−012(and it’s deviations), REO 601R−53−31−019or Air Canada Drawing 53−10002, andreceived the special inspection fromAppendix C of SB 601R−53−050 whenSB 601R−53−050 was incorporated.Compliance with AWL 53−41−185 inspectionthreshold becomes effective from theincorporation of the following:I. For in−service aircraft, rework or repairaccording to SB 601R−53−046,SB 601R−53−047, REO 601R−53−31−012(or it’s deviations), REO 601R−53−31−019or Air Canada Drawing 53−10002.II. For production aircraft, rework according toMod Sum TC601R14465.CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−37Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE53−41−188N/A53−41−188Part 9Keel beam cut−out at FS 409 +128(Post Service Bulletin 601R−53−046)DetailedVisual133582049133582049NOTE: This SSI 53−41−188 is superseded bySSI 53−41−184 and SSI 53−41−185if Mod Sum TC601R14589 orSB 601R−53−050 is incorporated before8 000 flight cycles from the incorporationof SB 601R−53−046. The incorporationlimit can be extended from 8 000 to20 000 flight cycles if the specialinspection from Appendix C ofSB 601R−53−050 is completed whenSB 601R−53−050 is incorporated.The threshold inspection interval forSSI 53−41−188 starts with theincorporation of SB 601R−53−046.53−41−189N/A53−41−189Part 453−41−189Part 6Keel beam cut−out at FS 409 +128(Post Service Bulletin 601R−53−046)SpecialDetailed133582049133582049NOTE: This SSI 53−41−189 is superseded bySSI 53−41−184 and SSI 53−41−185if Mod Sum TC601R14589 orSB 601R−53−050 is incorporated before8 000 flight cycles from the incorporationof SB 601R−53−046. The incorporationlimit can be extended from 8 000 to20 000 flight cycles if the specialinspection from Appendix C ofSB 601R−53−050 is completed whenSB 601R−53−050 is incorporated.CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−38Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE53−41−189The threshold inspection interval forSSI 53−41−189 starts with theincorporation of SB 601R−53−046.53−41−19053−41−05−0253−41−07−0353−41−190Part 9Beacon light cut−outs at FS409.00 +24 local toSTR 0 and STR 27EFFECTIVITY:Optional Beacon Light InstallationDetailedVisual4000040000400004000053−41−19153−41−17−0253−41−191Part 6Frame FS559 inner cap between STR 2 and STR9, LHS and RHSSpecialDetailed4000040000400003435353−41−19253−41−14−0253−41−192Part 6Frame FS409 +128 inner cap between STR 11Land STR 11RSpecialDetailed4000040000400004000053−41−19353−41−34−0253−41−193Part 9Internal pressure floor skin, FS409.00 +128 toFS559.00, left extremity of floor to right extremityEFFECTIVITY:(Post Modsum TC601R25208) or(Post Modsum TC601R25274 or Post SB601R−53−067) or(Post Modsum TC601R25336 or Post SB601R−53−077) or(Post Modsum TC601R25337)DetailedVisual1000010000100001000053−41−19453−41−34−0253−41−194Part 6Pressure floor Post Retro Mods at FS460.00 andFS513.00, between LBL18.0 and RBL18.0EFFECTIVITY:(Post Modsum TC601R25274 or Post SB601R−53−067) or(Post Modsum TC601R25336 or Post SB601R−53−077)SpecialDetailed40000161854000016185CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−39Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE53−41−19553−41−34−02Pressure floor Post Production Mods at FS460.00and FS513.00, between LBL18.0 and RBL18.0EFFECTIVITY:Post−Modsum TC601R25208ORPost−Modsum TC601R25337SpecialDetailed4000016352400001635253−41−19653−41−15−02FS409.00 +128 vertical beams at BL0.0 andBL18.0EFFECTIVITY:Post−Modsum TC601R25328SpecialDetailed2836610226283661022653−41−19753−41−15−02FS409.00 +128 vertical beams at BL0.0 andBL18.0EFFECTIVITY:Post−Modsum TC601R25288SpecialDetailed4000012147400001214753−41−19853−41−15−0253−41−198Part 9FS409.00 +128 splice angles at STR 21L andSTR 21REFFECTIVITY:Post−Modsum TC601R25328ORPost−Modsum TC601R25334ORPost−Modsum TC601R18141ORPost SB 601R−53−074DetailedVisual40000327034000032703CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−40Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE53−41−19953−41−15−0253−41−199Part 6FS409.0 +128 vertical posts at BL0.0 and BL18.0left and right local to WL69.0EFFECTIVITY:(Pre Modsum TC601R25288) or (Pre ModsumTC601R25328 or Pre SB 601R−53−074)PHASE−IN:Do the Threshold (initial) inspection as follows:1. For aircraft with 14156 Flight Cycles (FC) orless, accomplish before 18156 FC.2. For aircraft with 14157 to 18156 FC,accomplish within 4000 FC, but not later than21156 FC.3. For aircraft with 18157 to 21156 FC,accomplish within 3000 FC, but not later than23656 FC.4. For aircraft with 21157 to 23656 FC,accomplish within 2500 FC, but not later than25156 FC.5. For aircraft with 23657 FC or more,accomplish within 1500 FC.NOTE: Subject to TC AD action.SpecialDetailed18156539318156539353−41−20053−41−15−0253−41−200Part 9FS409.0 +128 frame cap aft and fwd spliceangles at STR21 left and rightDetailedVisual267278149267278149CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−41Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEPHASE−IN:Do the Threshold (initial) inspection as follows:1. For aircraft with 23727 Flight Cycles (FC) orless, accomplish before 26727 FC.2. For aircraft with 23728 to 26727 FC,accomplish within 3000 FC, but not later than28727 FC.3. For aircraft with 26728 FC or more,accomplish within 2000 FC.NOTE:Subject to TC AD action.CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−42Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE53−41−20153−41−19−0253−41−201Part 6FS559.0 pressure bulkhead web and cap anglelocal to BL9.0 and BL18.0 left and rightEFFECTIVITY:Pre Modsum TC601R17941 or Pre SB601R−53−076PHASE−IN:Do the Threshold (initial) inspection as follows:1. For aircraft with 12926 Flight Cycles (FC) orless, accomplish before 16926FC.2. For aircraft with 12927 to 16926 FC,accomplishwithin 4000 FC, but not later than 19926 FC.3. For aircraft with 16927 to 19926 FC,accomplishwithin 3000 FC, but not later than 22426 FC.4. For aircraft with 19927 to 22426 FC,accomplishwithin 2500 FC, but not later than 23926 FC.5. For aircraft with 22427 FC or more,accomplishwithin 1500 FC.NOTE:Subject to TC AD action.SpecialDetailed169263193169263193CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−43Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE53−41−20253−41−19−0253−41−202Part 9FS559.0 pressure bulkhead web and cap anglelocal to BL9.0 and BL18.0 left and rightEFFECTIVITY:Post Modsum TC601R17941 or Post SB601R−53−076SpecialDetailedNOTE 4DetailedVisualNOTE 42686026860158505605268602686015850560553−41−20453−41−04−0253−41−10−0253−41−204Part 6Frame splice angles at STR 6 and 20SpecialDetailed4000021328400001967553−41−20553−41−06−0253−41−48−0253−41−49−0253−41−50−0253−41−205Part 6Longitudinal skin splice at STR 6 and 20NOTE:AWL 53−41−109 or 53−41−205 may bechosen.Whichever task is chosen, the taskMUST be adhered to. An operator cannotalternate between either task.SpecialDetailed400006000400006000Rear Fuselage53−61−10153−61−01−0253−61−02−0253−61−101Part 9Rear pressure bulkhead vertical stiffeners andwebDetailedVisual20000621520000621553−61−103Incorporated with 53−61−11353−61−10453−61−04−0153−61−104Part 9Longeron to Str. 1 splice at frame FS718.0DetailedVisual4000040000400004000053−61−10553−61−05−0253−61−105Part 9Rear pressure bulkhead frame cap local to STR12LDetailedVisual40000571040000571053−61−10653−61−06−0153−61−106Part 9Rear fuselage to vertical stabilizer drag angle atFS755.0DetailedVisual40000327504000026626CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−44Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE53−61−107Incorporated with 53−71−10553−61−10853−61−08−0253−61−108Part 9Floor beam attachment to rear pressurebulkheadDetailedVisual4000020000400002000053−61−10953−61−09−0153−61−109Part 6Pylon to fuselage attachment structure atfuselage frames FS672.2 and FS682.0SpecialDetailed40000186040000151253−61−11053−61−10−0253−61−110Part 453−61−110Part 6Engine support beam upper and lower capangles at FS625.3, between RBL36.2 andLBL36.2EFFECTIVITY:Pre−Modsum TC601R15054ORPre−SB 601R−53−059 Rev. A or laterSpecialDetailed38940143853446012509NOTE:Airworthiness Directive issued.53−61−11153−61−11−0153−61−111Part 6Skin and frame splice at FS672.2, local to Str. 6and Str. 7SpecialDetailed4000020700350881682953−61−11253−61−12−0253−61−112Part 6Frame FS625.3 splice at STR 9−10 and STR11−12SpecialDetailed4000040000400004000053−61−11353−61−13−0153−61−113Part 9Skin panel local rear pressure bulkhead Str. 7L toStr. 7RDetailedVisual4000029000400002357753−61−11453−61−14−0153−61−114Part 453−61−114Part 6Engine support beam aft faceEFFECTIVITY:Pre−Modsum TC601R15054ORPre−SB 601R−53−059 Rev. A or laterSpecialDetailed400007300400006460NOTE:Airworthiness Directive issued.CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−45Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE53−61−14053−61−40−0153−61−140Part 6Cargo door upper sillSpecialDetailed4000040000400004000053−61−14153−61−41−0153−61−141Part 6Cargo door skin cut−outEFFECTIVITY:Pre−Modsum TC601R16421ORPre−Modsum TC601R16422SpecialDetailed9925572092495291NOTE:1. For aircraft that have exceeded the reducedthreshold and repeat interval, do thethreshold inspection as follows:A. For aircraft with 5249 Flight Cycles (FC) orless since entry−into−service (EIS),inspect before 9249 FC.B. For aircraft with 5250 to 9249 FC sinceEIS, inspect within the next 4000 FC, butnot later than 12249 FC.53−61−141C. For aircraft with 9250 to 12249 FC sinceEIS, inspect within the next 3000 FC, butnot later than 14249 FC.D. For aircraft with 12250 to 14249 FC sinceEIS, inspect within the next 2000 FC, butnot later than 15249 FC.E. For aircraft with 14250 to 15249 FC sinceEIS, inspect within the next 1000 FC, butnot later than 15749 FC.F. For aircraft with 15250 FC or more sinceEIS, inspect within the next 500 FC.CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−46Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE2. Airworthiness Directive issued.53−61−14253−61−10−02Engine support beam cap angle area (upper andlower) at FS640.0 and at FS625.0 betweenRBL36.2 and LBL36.2EFFECTIVITY:Post−Modsum TC601R15054ORPost−Modsum TC601R16135ORPost−Modsum TC601R16257ORPost−SB 601R−53−059 Rev. A or laterSpecialDetailed40000120954000012095NOTE:Airworthiness Directive issued.53−61−14353−61−25−0253−61−143Part 6Engine support beam lower and aft web accessholes outboard of BL36.2EFFECTIVITY:Post−Modsum TC601R15054ORPost−SB 601R−53−059 Rev. A or laterSpecialDetailed22145117732214511773NOTE:1. AWL 53−61−143 is superseded by AWL53−61−146 for aircraft Post−ModsumTC601R16299.2. Airworthiness Directive issued.53−61−144Incorporated with 53−61−110CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−47Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE53−61−14553−61−25−02Engine support beam, lower and aft web accessholes outboard of BL36.2 and cap angleattachments at FS625.3 and FS640.0EFFECTIVITY:Post−Modsum TC601R16135ORPost−Modsum TC601R16394ORPost−Modsum TC601R16635SpecialDetailed3055514385270401250953−61−14653−61−25−0253−61−146Part 6Engine support beam, lower and aft web accessholes outboard of BL36.2, lower web splice andcap angle attachments at FS625.3 and FS640.0EFFECTIVITY:Post−Modsum TC601R16257ORPost−Modsum TC601R16272ORPost−Modsum TC601R16299SpecialDetailed3055512315270401070953−61−14753−61−22−02FS621.0 rear pressure bulkhead forward faceEFFECTIVITY:Post−Modsum TC601R16159SpecialDetailedDetailedVisual217702177092859285217702177092859285CRJ200See Effective TRPAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−48Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE53−61−14853−61−25−02Engine support beam, reinforcement to FS640.0cap angles for baseline structure alreadyrepaired by GREO−601R−53−61−345EFFECTIVITY:Post−Modsum TC601R16420SpecialDetailed10265102651026510265NOTE:AWL 53−61−148 supersedesGREO−601R−53−61−345 inspectionrequirements.53−61−14953−61−25−02Engine support beam, FS640.0 cap angles,preventative or repair modificationEFFECTIVITY:Post−Modsum TC601R16486SpecialDetailed1026510265102651026553−61−15053−61−41−01Baggage door skin cut−outsEFFECTIVITY:Post−Modsum TC601R16422ORPost−SB 601R−53−070SpecialDetailed1576015760145791457953−61−15153−61−41−01Baggage door skin cut−outsEFFECTIVITY:Post−Modsum TC601R16421SpecialDetailed30135167702767214878CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−49Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE53−61−15253−61−25−0253−61−152Part 453−61−152Part 653−61−152Part 9Engine support beamEFFECTIVITY:Post−SB 601R−53−071SpecialDetailedDetailedVisual102651026510265102651026510265102651026553−61−15353−61−22−0253−61−153Part 453−61−153Part 6Rear pressure bulkhead web forward faceEFFECTIVITY:Pre−Modsum TC601R16159andPre−Modsum TC601R16430Note: Subject to TC action.SpecialDetailed120004360120004360NOTE:Compliance time to be in accordance withAirworthiness Directive53−61−15453−61−22−0253−61−154Part 9Rear pressure bulkhead web forward faceEFFECTIVITY:Post−Modsum TC601R16430DetailedVisual40000504040000504053−61−15553−61−155Part 9FS608.0 lavatory drain mast profile in bottomskin, STR 25R and STR 26RDetailedVisual366334208366334208CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−50Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE53−61−15653−61−18−0253−61−156Part 653−61−156Part 9Rear pressure bulkhead forward face below floorEFFECTIVITY:Pre Modsum TC601R17063PHASE−IN:Do the Threshold (initial) inspection as follows:1. For aircraft with 22667 FC or less, accomplishbefore 26667 FC.2. For aircraft with more than 22667 FC but lessthan or equal to 29000 FC, accomplish within4500 FC, but not later than 32000 FC.3. For aircraft with more than 29000 FC but lessthan or equal to 32500 FC, accomplish within3500 FC, but not later than 35500 FC.4. For aircraft with more than 32500 FC but lessthan or equal to 35500 FC, accomplish within3000 FC, but not later than 37500 FC.5. For aircraft with more than 35500 FC,accomplish within 2000 FC.NOTE:Subject to TC AD action.SpecialDetailedNOTE 4DetailedVisualNOTE 4266672666765451820266672666765451820CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−51Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE53−61−15753−61−18−02Rear pressure bulkhead forward face below floorEFFECTIVITY:Post Modsum TC601R17063SpecialDetailedNOTE 4DetailedVisualNOTE 4400004000074342101400004000074342101Fuselage/Stabilizer53−71−10153−71−01−0253−71−101Part 9Frame FS755.0 above WL125.0DetailedVisual4000040000400004000053−71−10253−71−02−0153−71−102Part 9Stringer extension attachment at VS31.875%and VS55.625%DetailedVisual4000040000400004000053−71−10353−71−03−0153−71−103Part 9Vertical Stabilizer rear spar and fuselage frame atfuselage station VS67.5%DetailedVisual4000040000400004000053−71−10453−71−04−0153−71−104Part 9Vertical stabilizer mid spar and fuselage frame atfuselage station VS43.75%DetailedVisual4000040000400004000053−71−10553−71−05−0253−71−105Part 9Vertical stabilizer front spar attachment fittings atframe FS755.0.DetailedVisual40000400004000040000Engine Nacelle54−10−100Task deleted Oct 05/9654−10−101Task deleted May 10/0654−10−102Task deleted May 10/0654−10−103N/A54−10−103Part 6Aft nose cowl bulkheadSpecialDetailed4000040000400004000054−10−104N/A54−10−104Part 9Engine nacelle A4 attachment ringDetailedVisual40000400004000040000CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−52Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE54−10−105N/A54−10−105Part 6Pylon track and support fittingPHASE−IN:Do the Threshold (initial) inspection as follows:1. For aircraft with 26422 Flight Cycles (FC) orless, accomplish before 29422 FC.2. For aircraft with 26423 FC to 29422 FC,accomplish within 3000 FC, but not later than31422 FC.3. For aircraft with 29423 FC or moreaccomplish within 2000 FC.NOTE:Subject to TC AD action.SpecialDetailed29422517729422517754−10−106N/A54−10−106Part 6Pylon track and support fittingEFFECTIVITY:Post Modsum EB600−3283ANDPost Modsum EB600−3526SpecialDetailed394806042394806042Pylon Box54−51−10154−51−01−0254−51−101Part 6Front spar at FS625.3SpecialDetailed4000040000400004000054−51−10254−51−02−0354−51−102Part 9Upper and lower skins from FS672.0 to FS682.0DetailedVisual4000018500400001651854−51−10354−51−03−0254−51−103Part 9Canted rib and drag bracesDetailedVisual40000400004000040000Horizontal Stabilizer55−11−101Incorporated with 55−11−102CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−53Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE55−11−10255−11−02−0255−11−102Part 9Screwjack attach fittings on horizontal stabilizercenter section front sparDetailedVisual4000039270400003356455−11−10355−11−03−0255−11−103Part 9Front spar splice at BL6.0DetailedVisual4000040000400004000055−11−104Incorporated with 55−11−10355−11−10555−11−05−0355−11−105Part 9Upper surfaceDetailedVisual4000040000400004000055−11−10655−11−06−0255−11−106Part 9Rear spar splice and skin structure − RBL11.0 toLBL11.0DetailedVisual4000040000400004000055−11−107Incorporated with 55−11−10655−11−108Incorporated with 55−11−10655−11−109Incorporated with 55−11−10655−11−11055−11−10−0255−11−110Part 9Horizontal stabilizer BL6.0 ribDetailedVisual4000040000400004000055−11−111Incorporated with 55−11−10555−11−112Incorporated with 55−11−10655−11−11555−11−15−0255−11−115Part 9Elevator hinges 1 and 1A fittings − mounted onstabilizerDetailedVisual4000040000400004000055−11−116Incorporated with 55−11−11555−11−117Incorporated with 55−11−10555−11−11955−11−19−0255−11−119Part 9Pivot fittingDetailedVisual40000400004000040000Elevator55−21−10155−21−01−0255−21−101Part 9Elevator front spar assemblyDetailedVisual40000400004000040000CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−54Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE55−21−102Incorporated with 55−21−10155−21−103Incorporated with 55−11−11555−21−104Incorporated with 55−11−11555−21−105Incorporated with 55−11−11555−21−106Incorporated with 55−21−10155−21−107N/A55−21−107Part 9Center and outboard hinge fittingsDetailedVisual331379887331379887Vertical Stabilizer55−31−10155−31−01−0255−31−101Part 9Front spar to fuselage attach fittingDetailedVisual4000040000400004000055−31−10255−31−02−0255−31−102Part 9Front spar to fuselage splice strapDetailedVisual4000040000400004000055−31−10455−31−04−0155−31−104Part 9Front spar attachment at vertical stabilizer rib 1DetailedVisual4000040000400004000055−31−10855−31−08−0255−31−108Part 9Access door cut−outsDetailedVisual4000040000400004000055−31−11155−31−11−0255−31−111Part 9Pivot fittingsDetailedVisual4000040000400004000055−31−11255−31−12−0255−31−112Part 655−31−112Part 9Trim actuator pivot structureSpecialDetailedDetailedVisual400004000040000400004000040000400004000055−41−10155−41−101Part 9Rudder InterfacePost Modsum TC601R15028GeneralVisual240001600240001600CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−55Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE55−41−10255−41−102Part 9Rudder Front Spar and SkinEFFECTIVITY:Post Modsum TC601R15028GeneralVisual240001600240001600Wing57−21−10157−21−20−0257−21−101Part 6Drain holes in wing lower plankSpecialDetailed7430743065186518EFFECTIVITY:Pre−Modsum TC601R18109ORPre−Modsum TC601R16627NOTE:The phase−in compliance is as follows:1. 51000 lb MTOW:A. For aircraft with 6430 landings or less;inspect on or before 7430 landings.B. For aircraft with more than 6430 landings,but less than or equal to 15000 landings;inspect within the next 1000 landings.2. 53000 lb MTOW:A. For aircraft with 5518 landings or less;inspect on or before 6518 landings.B. For aircraft with more than 5518 landings,but less than or equal to 15000 landings;inspect within the next 1000 landings.CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−56Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE57−21−1013. ALL aircraft:A. For aircraft with 15000 landings or more;inspect within the next 500 landings.4. Refer to AWL 57−21−150 for alternateinspection procedure of the drain holes inlower wing plank.5. AWL 57−21−101 or AWL 57−21−150 maybe chosen. Whichever task is chosen, thetask MUST be adhered to. An operatorcannot alternate between either task.57−21−10357−21−20−0257−21−103Part 9Front spar and lower skin splice at WS242.0DetailedVisual400001150040000833357−21−104Superseded by SSI 57−21−146, 57−21−147,57−21−148, and 57−21−14957−21−10557−21−20−0257−21−105Part 9Lower wing skin, between BL0.0 to WS314.0DetailedVisual361573077307192483PHASE−IN:Do the Threshold (initial) inspection as follows:1. For aircraft with 28719 Flight Cycles (FC) orless, accomplish before 30719 FC.2. For aircraft with 28720 FC to 30719 FC,accomplish within 2000 FC, but not later than31719 FC.3. For aircraft with 30720 FC or moreaccomplish within 1000 FC.NOTE:Subject to TC AD action.CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−57Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE57−21−106Incorporated with 57−21−11257−21−10757−21−04−0257−21−107Part 9Rear spar lower splice joint at BL45.0DetailedVisual40000556034188471257−21−109Incorporated with 57−21−11257−21−11057−21−10−0257−21−110Part 6Front spar lower splice joint and adjacent lowerskin at WS148.0SpecialDetailed4000025467400002158257−21−11157−21−13−0257−21−111Part 2Rear spar lower splice joint at WS148.0SpecialDetailed40000285634000024413CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−58Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE57−21−11257−21−06−0257−21−112Part 6Lower wing plank splice joints at BL45.0,WS65.75, and WS148.0EFFECTIVITY:Pre Modsum TC601R17950PHASE−IN:Do the Threshold (initial) inspection as follows:1. For aircraft with 18913 Flight Cycles (FC) orless, accomplish before 21913 FC.2. For aircraft with 18914 FC to 21913 FC,accomplish within 3000 FC, but not later than23913.3. For aircraft with 21914 FC to 23913 FC,accomplish within 2000 FC, but not later than24913.4. For aircraft with 23914 FC or more,accomplish within 1000 FC.NOTE:Subject to TC AD action.SpecialDetailed25967360021913303057−21−11357−21−20−0257−21−113Part 9Rear spar lower cap at WS168.0DetailedVisual4000016100400001376157−21−11457−21−01−0257−21−114Part 9Front spar lower cap at BL45.0DetailedVisual400008750400007609CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−59Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE57−21−11557−21−20−0257−21−115Part 6Lower skin at rear spar and lower rear spar webbetween WS62.5 and WS0.0NOTE:Subject to TC AD action.SpecialDetailed27925952524496835557−21−11657−21−06−0257−21−116Part 6Lower skin BL0.0 chordwise spliceSpecialDetailed4000029519400002139157−21−11757−21−06−0257−21−117Part 6Electric boost pump cut−out at BL11.0 in thelower aft wing plankEFFECTIVITY:Pre Modsum TC601R15850 and Pre ModsumTC601R15999PHASE−IN:Do the Threshold (initial) inspection as follows:1. For aircraft with 4643 FC or less, accomplishbefore 5643 FC.2. For aircraft with more than 4643 FC but lessthan or equal to 10000 FC, accomplish within1000 FC, but not later than 10500 FC.3. For aircraft with more than 10000 FC,accomplish within 500 FC.SpecialDetailed643364335643564357−21−11857−21−01−0257−21−118Part 9Front spar lower splice joint at WS29.42DetailedVisual4000040000400004000057−21−11957−21−33−0257−21−119Part 9Wing to fuselage attachment at BL45.0 andFS513.0DetailedVisual40000400004000040000CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−60Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE57−21−12057−21−28−0257−21−120Part 9Wing to fuselage attachment and MLG sidebrace fitting at BL13.5, FS513.0DetailedVisual4000040000384323843257−21−12157−21−34−0257−21−121Part 6Wing to inboard flap hinge box forwardattachments at WS80.5 and WS127.25SpecialDetailed4000040000400004000057−21−12257−21−31−0257−21−122Part 9Wing to fuselage attachment at BL45.0 andFS424.0DetailedVisual4000040000400004000057−21−12357−21−32−0257−21−123Part 9Wing to fuselage attachment at BL45.0 andFS473.0DetailedVisual4000040000400004000057−21−12457−21−17−0257−21−124Part 9Front spar lower cap and butt strap at WS314.5DetailedVisual4000040000380083800857−21−12557−21−17−0257−21−125Part 6Rear spar lower cap and butt strap at WS314.5SpecialDetailed4000020540400001683657−21−126Incorporated with 57−21−13057−21−12757−21−35−0257−21−127Part 9Wing to outboard flap hinge box forwardattachments at WS178.0, WS220.0 and WS264.0DetailedVisual35615727535615727557−21−12857−21−25−0257−21−128Part 2Lower skin, steel strap and MLG trunnion rib atWS65.75[1] Pre−Modsum TC601R15827[2] Post−Modsum TC601R15827SpecialDetailed39588 [1]26392 [2]39588 [1]26392 [2]35034 [1]23356 [2]23016 [1]15344 [2]57−21−130N/A57−21−130Part 9Strap at WS65.75 and surrounding area[1] Pre−Modsum TC601R15827[2] Post−Modsum TC601R15827DetailedVisual40000 [1]36533 [2]7178 [1]4785 [2]40000 [1]32047 [2]6188 [1]4125 [2]57−21−13457−21−17−0257−21−134Part 9Dry bay lower access hole cut−out at WS314.5DetailedVisual4000040000400004000057−21−13557−21−13−0257−21−135Part 9Lower butt strap and rear spar lower cap ataileron PCU cut−outs, WS318.3 and WS324.4DetailedVisual40000400004000038043CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−61Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE57−21−13657−21−13−0257−21−136Part 9Rear spar splice joint at WS353.0DetailedVisual4000040000400004000057−21−137Incorporated with 57−21−13857−21−13857−31−01−0157−21−138Part 6Winglet front spar and rear spar fittingsSpecialDetailed400001135040000953857−21−139Incorporated with 57−21−14157−21−140Incorporated with 57−21−14157−21−14157−21−20−0257−21−141Part 457−21−141Part 657−21−141Part 9Ribs and lower skins beneath flap hinge−box aftand fwd fittings at WS80.5, WS127.25, WS178.0,WS220.0, and WS264.0SpecialDetailedDetailedVisual400004000015760157604000040000114201142057−21−14257−21−19−0257−21−142Part 9Upper skin access holes between rear andauxiliary sparsDetailedVisual4000040000400004000057−21−14357−51−05−0257−21−143Part 9Aileron hinge fittingsDetailedVisual4000040000400004000057−21−144Incorporated with 57−21−115CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−62Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE57−21−14557−21−06−0357−21−145Part 6MLG mounting trunnion fitting assemblyEFFECTIVITY:Pre Modsum TC601R16268ORPre Modsum TC601R16290ORPre Modsum TC601R16614[1] Pre Modsum TC601R15827[2] Post Modsum TC601R15827NOTE: Subject to TC AD action.LIMIT OF VALIDITY (LOV):AWL 57−21−145 is valid up to 38900 FlightCycles. After 38900 Flight Cycles, one of thefollowing actions is required;1) Remove and replace the trunnion fitting P/N601R10031.2) Incorporate Modsum TC601R17175 (SB601R−57−047).After incorporation of in−service ModsumTC601R17175, the MLG trunnion fitting lugs arecovered by AWL 57−21−166.SpecialDetailed30667 [1]20444 [2]12667 [1]8444 [2]25989 [1]17326 [2]9179 [1]6119 [2]57−21−14657−21−20−0257−21−146Part 6Lower wing plank access holes at: WS 55.38(540BB/640BB), WS75.63 (540CB/640CB),WS95.95 (540DB/640DB), and WS 137.63(540FB/640FB)SpecialDetailed138479599122718504CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−63Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE57−21−14757−21−20−0257−21−147Part 6Lower wing plank access holes at: WS 55.38(540AB/640AB), WS116.83 (540EB/640EB),WS163.0 (550ABB/650AB), and WS 185.5(550BB/650BB)SpecialDetailed1612911249145441013757−21−14857−21−20−0257−21−148Part 6Lower wing plank access holes at: WS 33.75(510BB/610BB), WS 209.5 (550CB/650CB), WS231.0 (550DBB/650DB), and WS 253.0(550EB/650EB)SpecialDetailed2254015552202151390857−21−14957−21−20−0257−21−149Part 6Lower wing plank access holes at: WS 11.25(510AB/610AB), WS 274.0 (550FB/650FB), WS284.68 (550GB/650GB), and WS 303.86(550HB/650HB)SpecialDetailed4000034427400003007457−21−15057−21−20−0257−21−150Part 6Alternate inspection procedure for drain holes inlower wing plankEFFECTIVITY:Pre−Modsum TC601R18109ORPre−Modsum TC601R16627NOTE:AWL 57−21−101 or AWL 57−21−150 may bechosen. Whichever task is chosen, the taskMUST be adhered to. An operator cannotalternate between either task.SpecialDetailed8658638675945602CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−64Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsNDTINSPECTION INTERVALAWLNUMBERMRB TASKREFERENCENDTMANUALDESCRIPTIONINSPECTTYPE51000 lb MTOW53000 lb MTOWNUMBERREFERENCEREF.TYPETHRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)57−21−15157−21−13−0257−21−20−0257−21−151Part 6Aft lower wing plank at WS148.019EFFECTIVITY:Post−Modsum TC601R15583ORPost−SB 601R−57−037SpecialDetailed20617206171762117621NOTE:1. Inspection of the rear spar lower cap andsplice joint at WS148.019 are covered by AWL57−21−111.2. Threshold begins from the time ofmodification incorporation.3. Subject to TC AD action.57−21−15257−21−20−0257−21−152Part 6Boost pump cut−out in the lower wing plankEFFECTIVITY:Post−Modsum TC601R15999 Rev. BORPost−SB 601R−57−032SpecialDetailed14150887012094758157−21−15357−21−13−0257−21−20−0257−21−153Part 6Aft lower wing plank at WS148.019EFFECTIVITY:Post−Modsum TC601R16015SpecialDetailed40000400004000040000NOTE:Inspection of the rear spar lower cap and splicejoint at WS148.019 are covered by AWL57−21−111.CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−65Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE57−21−15457−21−20−0257−21−154Part 6Fuel boost pump cut−out in the lower wingplankEFFECTIVITY:Post−Modsum TC601R15850SpecialDetailed11807897710357787457−21−15557−21−26−03MLG mounting trunnion fitting assemblyEFFECTIVITY:Post Modsum TC601R16268ORPost Modsum TC601R16290ORPost Modsum TC601R16614SpecialDetailed306671266725989917957−21−15657−21−06−02Lower wing plank splice joints at BL45.0,WS65.75, and WS148.0EFFECTIVITY:Post Modsum TC601R17950SpecialDetailed400005890400005004CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−66Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE57−21−15757−21−20−02Drain holes in lower wing plank BL45, WS65.75(STR 14 to STR 15), and WS85.5EFFECTIVITY:Post Modsum TC601R18109NOTE:The Threshold starts from the time of ModsumTC601R18109 incorporation and is calculated asfollows:1. If Modsum incorporated at 20000 FlightCycles (FC) or less, the Threshold is 40000FC2. If Modsum incorporated at more than 20000FC, calculate the Threshold as follows:Threshold = 70000 − (1.5 x IP)IP = Flight Cycles at Modsum IncorporationpointSpecialDetailed40000607740000525257−21−15857−21−20−02Drain holes in lower wing plank at BL0.0 (STR 5to STR 7 and STR 14 to STR 15), BL45.0,WS65.75 (STR 14 to STR 15) and WS85.5EFFECTIVITY:Post−Modsum TC601R16627SpecialDetailed157903330134802850CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−67Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE57−21−15957−21−20−0257−21−159Part 6Boost pump and drain hole cut−outs in thelower wing plankEFFECTIVITY:Post−Modsum TC601R15999 Rev. C or laterORPost−SB 601R−57−045SpecialDetailed14150887012094758157−21−16057−21−160Part 9Fwd and aft keel beam bayonet fittings (wingside) at FS409.0 +128 and FS513.0DetailedVisual40000400004000040000CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−68Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE57−21−16157−21−06−0357−21−161Part 657−21−161Part 9MLG mounting trunnion fitting web at WS66.00(Baseline Configuration)EFFECTIVITY:Pre Modsum TC601R17760 and Pre ModsumTC601R17911 or Pre SB 601R−57−046 and PreSB 601R−57−048[1] Pre Modsum TC601R15827[2] Post Modsum TC601R15827PHASE−IN:Do the Threshold (initial) inspection as follows:1. For aircraft with 23500 Flight Cycles (FC) orless, accomplish before 25000 FC.2. For aircraft with 23501 to 25000 FC,accomplish within 1500 FC, but not later than26000 FC.3. For aircraft with 25001 to 26000 FC,accomplish within 1000 FC, but not later than26500 FC.4. For aircraft with 26001 FC or more,accomplish within 500 FC.SpecialDetailedNOTE 4DetailedVisualNOTE 425000 [1]16667 [2]25000 [1]16667 [2]3000 [1]2000 [2]1500 [1]1000 [2]25000 [1]16667 [2]25000 [1]16667 [2]3000 [1]2000 [2]1500 [1]1000 [2]NOTE:1. For High Altitiude Airfield Operation (HAAO)aircraft (Post Modsum TC601R15827), thephase−in periods above are reduced(divided) by a factor of 1.5.2. Subject to TC AD action.CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−69Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE57−21−161LIMIT OF VALIDITY (LOV):AWL 57−21−161 is valid up to 34900 FlightCycles. After 34900 Flight Cycles, one of thefollowing actions is required:1. Remove and replace the trunnion fitting P/N601R10031 or 601R10068.2. Incorporate Modsums TC601R17174 (SB601R−57−046) and TC601R17554 (SB601R−57−048).After incorporation of Modsums TC601R17760and TC601R17911 or SB 601R−57−046 and SB601R−57−048, the MLG trunnion fitting lowerflange is covered by AWL 57−21−164. and theMLG trunnion fitting web is covered by AWL57−21−165.57−21−16457−21−26−03MLG mounting trunnion fitting lower flangeEFFECTIVITY:(Post Modsum TC601R17760 and Post ModsumTC601R17911) or (Post SB 601R−57−046)NOTE:The Threshold (initial) inspection starts from thetime of Modsum or Service Bulletin incorporation.SpecialDetailed398001000398001000CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−70Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE57−21−16557−21−26−03MLG mounting trunnion fitting web at WS66.00EFFECTIVITY:(Post Modsum TC601R17760 and Post ModsumTC601R17911) or (Post SB 601R−57−048)NOTE:The Threshold (initial) inspection starts from thetime of Modsum or Service Bulletin incorporation.SpecialDetailed40000100040000100057−21−16657−21−26−03MLG mounting trunnion fitting lugsEFFECTIVITY:Post Modsum TC601R17175 or Post SB601R−57−047NOTE:The Threshold (initial) inspection starts from thetime of Modsum or Service Bulletin incorporation.SpecialDetailed400001000400001000Inboard Flap57−52−101Incorporated with 57−52−11257−52−102Incorporated with 57−52−11257−52−103Incorporated with 57−52−10557−52−10557−52−05−0157−52−105Part 9Front spar and rear sparDetailedVisual4000025950400002595057−52−10657−52−06−0257−52−106Part 9Hinge ribsDetailedVisual4000040000400004000057−52−10757−52−07−0257−52−107Part 9Lug platesDetailedVisual40000369654000036965CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−71Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE57−52−10857−52−08−0257−52−108Part 9Hinge armsDetailedVisual4000011847400001184757−52−111Incorporated with 57−52−10857−52−112N/A57−52−112Part 9Upper and lower skinDetailedVisual4000014900400001490057−52−113Incorporated with 57−52−10857−52−11457−52−14−0257−52−15−0257−52−114Part 9Vane actuator tube assemblyDetailedVisual2623926239262392623957−52−115Superceded by 27−54−15 (Lifed Item)57−52−117Incorporated with 57−52−11857−52−118N/A57−52−118Part 6Inboard flap vane skinSpecialDetailed4000040000400004000057−52−11957−52−19−0257−52−119Part 6Vane mounting structureSpecialDetailed4000040000400004000057−52−120Superceded by 27−54−15 (Lifed Item)Outboard Flap57−53−101Incorporated with 57−53−10257−53−102N/A57−53−102Part 9Upper and lower skinDetailedVisual4000040000400004000057−53−10357−53−03−0157−53−103Part 6Front sparSpecialDetailed4000040000400004000057−53−10457−53−04−0257−53−104Part 9Vane support structureDetailedVisual4000032690400003269057−53−10557−53−03−0157−53−04−0257−53−105Part 9Vane mounting lug/nose ribletDetailedVisual40000326904000032690CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−72Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE57−53−10657−53−05−0257−53−15−0257−53−106Part 9Hinge support structureDetailedVisual4000022253400002225357−53−107N/A57−53−107Part 9Nose riblets at flap arm locationsDetailedVisual4000032690400003269057−53−108Incorporated with 57−53−11457−53−109Incorporated with 57−53−10757−53−110N/A57−53−110Part 6Inboard and outboard intercostal sparmachinings at WS178.0 and WS264.0SpecialDetailed4000010487400001048757−53−111Incorporated with 57−53−11457−53−113Incorporated with 57−53−10657−53−11457−53−10−0257−53−13−0257−53−20−0257−53−114Part 9Hinge armsDetailedVisual40000389340000389357−53−116Incorporated with 57−53−10657−53−117Incorporated with 57−53−10757−53−11857−53−07−0257−53−17−0257−53−118Part 6Hinge box to flap attachment structureSpecialDetailed4000035167400003516757−53−119Incorporated with 57−53−11857−53−120Incorporated with 57−53−11057−53−12257−53−22−0257−53−24−0257−53−122Part 9VaneDetailedVisual4000040000400004000057−53−123Incorporated with 57−53−122CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−73Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE57−53−12557−53−26−02RTM outboard flap composite componentsEFFECTIVITY:Post−Modsum TC601R25500DetailedVisual4000040000400004000057−53−12657−53−26−02RTM outboard flap metallic flap to vane and vanefittingsEFFECTIVITY:Post−Modsum TC601R25500SpecialDetailed4000020000400002000057−53−12757−53−27−02RTM outboard flap metallic internal insertstructuresEFFECTIVITY:Post−Modsum TC601R25500SpecialDetailed4000020000400002000057−53−12857−53−26−02RTM outboard flap metallic support structuresEFFECTIVITY:Post−Modsum TC601R25500SpecialDetailedDetailedVisual4000040000200002000040000400002000020000Flap Hinge Box57−54−10357−54−01−0257−54−103Part 6Inboard flap hinge boxes including end fittingsSpecialDetailed16500460016500460057−54−10557−54−02−0257−54−105Part 6Outboard flap hinge boxes including end fittingsSpecialDetailed16000160001600016000Aileron57−61−10157−61−01−0257−61−101Part 9Aileron fittingsDetailedVisual40000400004000040000CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−74Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE57−61−10257−61−02−0257−61−102Part 9Upper and lower skin panelDetailedVisual4000040000400004000057−61−10457−61−04−0257−61−104Part 9Front sparDetailedVisual4000040000400004000057−61−10557−61−05−0257−61−105Part 9Internal structureDetailedVisual4000040000400004000057−61−10657−61−01−0257−61−106Part 9Aileron hinge fittings and back−up structureEFFECTIVITY:Post−Modsum TC601R15307DetailedVisual24000160024000160057−61−10757−61−02−0257−61−03−0257−61−107Part 9Aileron upper and lower skinEFFECTIVITY:Post−Modsum TC601R15307DetailedVisual24000160024000160057−61−10857−61−04−0257−61−108Part 6Aileron front spar and front spar spliceEFFECTIVITY:Post−Modsum TC601R15307SpecialDetailed24000160024000160057−61−10957−61−06−0257−61−109Part 8Aileron side hinge pinsEFFECTIVITY:Post−Modsum TC601R15307NOTE:Replacement of the hinge pins with new hingepins restarts the Threshold.SpecialDetailed240001600240001600CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL AIRWORTHINESS LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−75Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsAWLNUMBERINSPECTION INTERVALINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBER53000 lb MTOW51000 lb MTOWINSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCEAWLNUMBERREPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSPECTTYPEDESCRIPTIONNDTMANUALREF.MRB TASKREFERENCE57−61−11057−61−07−02RTM aileron composite and metallic componentsEFFECTIVITY:Post−Modsum TC601R25167DetailedVisual40000400004000040000Engine Mount71−21−101Superseded by 71−21−01 (Lifed Item)71−21−102MSI 71210071−21−102Part 8Engine mount thrust fittingSpecialDetailed4000026507400001677671−21−103MSI 71220071−21−103Part 4Upper link of yoke fitting at FS625.3SpecialDetailed4000023733400002046071−21−104MSI 71210071−21−104Part 8Engine mount shaftSpecialDetailed3000018694263161183171−22−101Task deleted Oct 05/96CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL LIFE LIMITSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−76Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsCANADAIRVENDOR51000 lb MTOW53000 lb MTOWATA NO.PART NAMECANADAIRPARTNUMBERVENDORPARTNUMBERTC/FAACertification(Landings)JAACertification(Landings)TC/FAACertification(Landings)JAACertification(Landings)Aileron Control System27−11−01Shear Pin − Flutter Damper (solid)Shear Pin − Flutter Damper (counterbored)600−10179−1601R10179−1N/AN/A15345400153454001534540015345400Elevator Control System27−31−01Shear Pin − Flutter Damper (grooved)Shear Pin − Flutter Damper (counterbored)Shear Pin − Flutter Damper (counterbored)Shear Pin − Flutter Damper (counterbored)Shear Pin − Flutter Damper (counterbored)Shear Pin − Flutter Damper (counterbored)601R24063−2501601R24063−31601R24063−31/S601R24063−951601R24063−953RNCC079033−1/375N/AN/AN/AN/AN/AN/A8102000020000200002000020000810200002000020000200002000081020000200002000020000200008102000020000200002000020000CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL LIFE LIMITSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−77Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsATA NO.53000 lb MTOW51000 lb MTOWVENDORPARTNUMBERCANADAIRPARTNUMBERPART NAMEATA NO.JAACertification(Landings)TC/FAACertification(Landings)JAACertification(Landings)TC/FAACertification(Landings)VENDORPARTNUMBERCANADAIRPARTNUMBERPART NAMEHorizontal Stabilizer Trim ActuatingSystem27−42−01HSTA Trunnion Support and AttachingHardware (SSI #27−40−103)TrunnionBolt, Hex Head (standard)Bolt, Hex Head (standard)NOTE:1. The standard bolts must either beremoved and replaced with newhardware at each HSTA removal /installation, or reused on the same HSTAtrunnion support installation at eachHSTA removal / installation.2. The interchange of standard bolts fromone HSTA trunnion support installation toanother is not permitted.601R92386−1601R92386−3K601R92308−19N/AN/AN/AN/AN/AN/AN/AN/AN/ANAS6206−8DNAS6206−14DNAS6206−20DS8225−06−8DS8225−06−14DS8225−06−20D800008000080000800008000080000800008000080000800008000080000800008000080000800008000080000800008000080000800008000080000800008000080000800008000080000800008000080000800008000080000CRJ200See Effective TRPAGE PRINTED ON 4-15-2014STRUCTURAL LIFE LIMITSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−78Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsATA NO.53000 lb MTOW51000 lb MTOWVENDORPARTNUMBERCANADAIRPARTNUMBERPART NAMEATA NO.JAACertification(Landings)TC/FAACertification(Landings)JAACertification(Landings)TC/FAACertification(Landings)VENDORPARTNUMBERCANADAIRPARTNUMBERPART NAMEHorizontal Stabilizer Trim ActuatingSystem27−42−01Secondary Gearbox Housing (SSI#27−40−104)(Applicable to HSTA P/N 8396−5 only)NOTE:Return HSTA to vendor for housingreplacement.N/A2618818047110 FCOR8070 FHW.C.F.7110 FCOR8070 FHW.C.F.7110 FCOR8070 FHW.C.F.7110 FCOR8070 FHW.C.F.Flap Control Surface System27−54−15Actuator Assembly − Inboard Flap Vane(SSIs #57−52−115 and #57−52−120)601R14202−3601R14202−5601R14202−7N/AN/AN/A600006000060000600006000060000600006000060000600006000060000Main Landing Gear (MLG) SystemNOTE:The Life Limits that follow are applicable tothe MLG that mounts any Goodyear,Michelin, or Michelin Improved Tires.32−11−101Superseded by SSIs #32−11−110 and#32−11−11132−11−102Trailing Arm601R85001−717084−10338639309112750022000CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL LIFE LIMITSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−79Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsATA NO.53000 lb MTOW51000 lb MTOWVENDORPARTNUMBERCANADAIRPARTNUMBERPART NAMEATA NO.JAACertification(Landings)TC/FAACertification(Landings)JAACertification(Landings)TC/FAACertification(Landings)VENDORPARTNUMBERCANADAIRPARTNUMBERPART NAME32−11−103Superseded by SSIs #32−11−112 to#32−11−11532−11−104Shaft − Side Stay Fitting601R10237−1601R10237−3601R10247−3N/AN/AN/A1192851305725975429542810445847803398414120879543027787319670343442232−11−105Uplock Assembly601R85001−1117051−1018800088000880008800032−11−106Cylinder − Shock StrutPiston − Shock StrutN/AN/AN/AN/A17105−10117105−10317105−10517115−101120000120000120000120000960009600096000960001200001200001200001200009600096000960009600032−11−107Pin − Shock StrutNOTE:P/Ns 17134−1/−3 and 17144−1 removedfrom service as per Airworthiness DirectiveCF−96−12 R1.N/A17207−1120000960001200009600032−11−108Trailing Arm601R85001−71601R85001−73601R85001−75601R85001−7717084−10517084−10917084−11117084−11310889110889110889112000087113871138711312000063869638696386912000051095510955109512000032−11−109Merged with SSI #32−11−108CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL LIFE LIMITSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−80Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsATA NO.53000 lb MTOW51000 lb MTOWVENDORPARTNUMBERCANADAIRPARTNUMBERPART NAMEATA NO.JAACertification(Landings)TC/FAACertification(Landings)JAACertification(Landings)TC/FAACertification(Landings)VENDORPARTNUMBERCANADAIRPARTNUMBERPART NAME32−11−110Main Fitting[1] P/Ns 601R85001−3 and −4 areremoved from service by ADCF−2004−18R1 and 2007−01−07.For TC, discard by June 30, 2007.For FAA, discard by May 16, 2008.[2] P/Ns 601R85001−81 and −82 areremoved from service by ADCF−2003−09R1 and 2007−03−19.For TC, discard by December 31, 2008.For FAA, discard by June 15, 2010.601R85001−3601R85001−4601R85001−3601R85001−4601R85001−81601R85001−82601R85001−83601R85001−8417064−10117064−10217064−10317064−10417064−10517064−10617064−10717064−108[1][1][1][1][2][2]120000120000[1][1][1][1][2][2]120000120000[1][1][1][1][2][2]120000120000[1][1][1][1][2][2]12000012000032−11−111AxleN/AN/A17050−117050−101137279137279109823109823120000120000960009600032−11−112Cylinder − Side Stay ActuatorN/A17027−7120000960001200009600032−11−113Piston − Side Stay ActuatorN/AN/A17014−317014−71407681407681126141126141133551133559068490684CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL LIFE LIMITSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−81Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsATA NO.53000 lb MTOW51000 lb MTOWVENDORPARTNUMBERCANADAIRPARTNUMBERPART NAMEATA NO.JAACertification(Landings)TC/FAACertification(Landings)JAACertification(Landings)TC/FAACertification(Landings)VENDORPARTNUMBERCANADAIRPARTNUMBERPART NAME32−11−114Rod End − Side Stay ActuatorN/A17028−31407681126141133559068432−11−115Covered by SSI #32−11−11232−11−116Pin − PivotN/AN/A17041−117041−31200001200009600096000120000120000960009600032−11−117Pin − Side Stay ActuatorN/A17076−11470711176571200009600032−11−118Pin − PintleN/A17040−1110459883676460751686Nose Landing Gear (NLG) SystemNOTE:The Life Limits that follow are applicable tothe NLG that mounts any Goodyear,Michelin, or Michelin Improved Tires.32−21−101Superseded by SSIs #32−21−105 to#32−21−110, and #32−21−11632−21−102Uplock Assembly601R85002−9601R85002−9116600−10116600−1031066671066678000080000106667106667800008000032−21−103Superseded by SSIs #32−21−117,32−21−119 to #32−21−121CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL LIFE LIMITSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−82Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsATA NO.53000 lb MTOW51000 lb MTOWVENDORPARTNUMBERCANADAIRPARTNUMBERPART NAMEATA NO.JAACertification(Landings)TC/FAACertification(Landings)JAACertification(Landings)TC/FAACertification(Landings)VENDORPARTNUMBERCANADAIRPARTNUMBERPART NAME32−21−104Superseded by SSIs #32−21−118,32−21−119 to #32−21−12132−21−105Main FittingN/A16114−101160740964441326167957032−21−106Axle−Piston − IntegralN/A16122−101160740964441326167957032−21−107Axle FittingN/A16124−101160740964441326167957032−21−108Sliding TubeN/A16120−1160740964441326167957032−21−109Pin − TrunnionN/A16131−1160740964441326167957032−21−110Pin − Lower Drag BraceN/A16129−1160740964441326167957032−21−116Pin − Axle CrossN/A16128−116128−3152434914601257637545832−21−117Drag Brace − UpperN/A16414−1012698721590222651781232−21−118Drag Brace − UpperN/A16414−1037017542105578973473832−21−119Drag Brace − LowerN/A16424−101160740964441326167957032−21−120Pin − Drag Brace PivotN/A16403−1160740964441326167957032−21−121Pin − Upper Drag BraceN/A16404−11607409644413261679570CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL LIFE LIMITSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−83Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsATA NO.53000 lb MTOW51000 lb MTOWVENDORPARTNUMBERCANADAIRPARTNUMBERPART NAMEATA NO.JAACertification(Landings)TC/FAACertification(Landings)JAACertification(Landings)TC/FAACertification(Landings)VENDORPARTNUMBERCANADAIRPARTNUMBERPART NAMEEngine Mounts71−21−01Fitting − Fwd Engine Mount Yoke(SSI #71−21−101)601−37015N/A80000800008000080000CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL LIFE LIMITS − HIGH ALTITUDE AIRFIELD OPERATION (HAAO) − POST−MODSUM TC601R15827 AIRCRAFT ONLYAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−84Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsCANADAIRVENDOR51000 lb MTOW53000 lb MTOWATA NO.PART NAMEPARTNUMBERPARTNUMBERTC/FAA Certification(Landings)TC/FAA Certification(Landings)Main Landing Gear (MLG) SystemNOTE:The Life Limits that follow are applicable tothe MLG that mounts any Goodyear,Michelin, or Michelin Improved Tires.32−11−101Superseded by SSIs #32−11−110 and#32−11−11132−11−103Superseded by SSIs #32−11−112 to#32−11−11532−11−104Shaft − Side Stay Fitting601R10237−1601R10237−3601R10247−3N/AN/AN/A7952387048398361656098058636201832−11−109Merged with SSI #32−11−108CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL LIFE LIMITS − HIGH ALTITUDE AIRFIELD OPERATION (HAAO) − POST−MODSUM TC601R15827 AIRCRAFT ONLYAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−85Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsATA NO.53000 lb MTOW51000 lb MTOWVENDORPARTNUMBERCANADAIRPARTNUMBERPART NAMEATA NO.TC/FAA Certification(Landings)TC/FAA Certification(Landings)VENDORPARTNUMBERCANADAIRPARTNUMBERPART NAME32−11−110Main Fitting[1] P/Ns 601R85001−3 and −4 areremoved from service by ADCF−2004−18R1 and 2007−01−07.For TC, discard by June 30, 2007.For FAA, discard by May 16, 2008.[2] P/Ns 601R85001−81 and −82 areremoved from service by ADCF−2003−09R1 and 2007−03−19.For TC, discard by December 31, 2008.For FAA, discard by June 15, 2010.601R85001−3601R85001−4601R85001−3601R85001−4601R85001−81601R85001−82601R85001−83601R85001−8417064−10117064−10217064−10317064−10417064−10517064−10617064−10717064−108[1][1][1][1][2][2]120000120000[1][1][1][1][2][2]12000012000032−11−111AxleN/AN/A17050−117050−1018766087660766207662032−11−118Pin − PintleN/A17040−11064106224032−11−102Trailing Arm601R85001−717084−103386392750032−11−108Trailing Arm601R85001−71601R85001−73601R85001−75601R85001−7717084−10517084−10917084−11117084−11310889110889110889112000063869638696386912000032−11−116Pin − PivotN/AN/A17041−117041−3119280119280119280119280CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL LIFE LIMITS − HIGH ALTITUDE AIRFIELD OPERATION (HAAO) − POST−MODSUM TC601R15827 AIRCRAFT ONLYAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−86Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsATA NO.53000 lb MTOW51000 lb MTOWVENDORPARTNUMBERCANADAIRPARTNUMBERPART NAMEATA NO.TC/FAA Certification(Landings)TC/FAA Certification(Landings)VENDORPARTNUMBERCANADAIRPARTNUMBERPART NAME32−11−106Cylinder − Shock StrutPiston − Shock StrutN/AN/AN/AN/A17105−10117105−10317105−10517115−10112000012000012000012000012000012000012000012000032−11−107Pin − Shock StrutNOTE:P/Ns 17134−1/−3 and 17144−1 removedfrom service as per Airworthiness DirectiveCF−96−12 R1.N/A17207−1854708547032−11−112Cylinder − Side Stay ActuatorN/A17027−712000012000032−11−113Piston − Side Stay ActuatorN/AN/A17014−317014−713770013770011090011090032−11−114Rod End − Side Stay ActuatorN/A17028−312926010409032−11−115Covered by SSI #32−11−11232−11−117Pin − Side Stay ActuatorN/A17076−113505011019032−11−105Uplock Assembly601R85001−1117051−1018800088000CRJ200PAGE PRINTED ON 4-15-2014SYSTEMS COMPONENT LIFE LIMITSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−87Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsATA NOPART NAMECANADAIRPARTVENDORPARTLIFE LIMITATANO.PARTNAMEPARTNUMBERPARTNUMBERLIFELIMITRudder Control System27−21−01Rudder Bar AssyBA670−93413−1/−2N/A10000 Flight CyclesPitch Feel Simulator27−31−01Lever Assembly(Part of Pitch Feel Simulator P/N 601R92300−7,Vendor P/N TY1910−54A)N/ACH1910P003926600 Flight CyclesNOTE 7Horizontal Stabilizer Trim Actuating System27−42−01Actuator − Horizontal Stabilizer Trim (HSTA)601R92305−1601R92305−3601R92305−5601R92305−78396−28396−38396−48396−519200 Flight Hours19200 Flight Hours19200 Flight Hours19200 Flight HoursFlap Control System27−51−10Sensor Unit − Flap Brake and Position (BPSU)601R93105−11855D100−1150000 Flight CyclesFlap Actuating Mechanism System27−53−01Actuator − Inboard Flap601R93101−3852D100−512000 Flight HoursNOTE 1601R93101−19852D100−1930000 Flight CyclesNOTE 1601R93101−21852D100−2130000 Flight CyclesNOTE 1CRJ200PAGE PRINTED ON 4-15-2014SYSTEMS COMPONENT LIFE LIMITSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−88Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsATA NO.LIFE LIMITVENDORPARTNUMBERCANADAIRPARTNUMBERPART NAMEATA NO.LIFE LIMITVENDORPARTNUMBERCANADAIRPARTNUMBERPART NAME601R93101−23852D100−2330000 Flight CyclesNOTE 1601R93101−25852D100−2530000 Flight CyclesNOTE 127−53−05Actuator − Outboard Flap601R93103−3853D100−518000 Flight HoursNOTE 1601R93103−4853D100−618000 Flight HoursNOTE 1601R93103−19853D100−1933333 Flight CyclesNOTE 1601R93103−20853D100−2033333 Flight CyclesNOTE 1601R93103−23853D100−2333333 Flight CyclesNOTE 1601R93103−24853D100−2433333 Flight CyclesNOTE 1601R93104−3854D100−518000 Flight HoursNOTE 1601R93104−4854D100−618000 Flight HoursNOTE 1601R93104−19854D100−1933333 Flight CyclesNOTE 1601R93104−20854D100−2033333 Flight CyclesNOTE 1601R93104−23854D100−2333333 Flight CyclesNOTE 1CRJ200PAGE PRINTED ON 4-15-2014SYSTEMS COMPONENT LIFE LIMITSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−89Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsATA NO.LIFE LIMITVENDORPARTNUMBERCANADAIRPARTNUMBERPART NAMEATA NO.LIFE LIMITVENDORPARTNUMBERCANADAIRPARTNUMBERPART NAME601R93104−24854D100−2433333 Flight CyclesNOTE 127−53−10Shaft Assembly − Flexible Drive601R93106−101857SD100−118000 Flight HoursNOTE 1Auxiliary Power Unit (APU) Fuel Feed System28−24−01Cartridge − APU Fuel Pump601R62204−5601R62204−7228077−1228077−21800 APU Hours1800 APU HoursHydraulic Systems No. 1 and No. 229−11−03Pump − AC Motor Driven (ACMP)601R75154−58484311200 Flight HoursNOTE 2Pitot−Static and Temperature SensingSystem34−11−01Probe − Pitot−StaticN/AN/A0856KV90856KV109600 Flight Hours9600 Flight HoursNOTE:Replacement of the pitot−static probes is applicableto all aircraft approved for RVSM operation that donot incorporate MRB Task 34−11−00−09 in theirapproved aircraft maintenance program.CRJ200PAGE PRINTED ON 4-15-2014SYSTEMS COMPONENT LIFE LIMITSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−90Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsATA NO.LIFE LIMITVENDORPARTNUMBERCANADAIRPARTNUMBERPART NAMEATA NO.LIFE LIMITVENDORPARTNUMBERCANADAIRPARTNUMBERPART NAMECRJ200PAGE PRINTED ON 4-15-2014SYSTEMS COMPONENT LIFE LIMITSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−91Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsATA NO.LIFE LIMITVENDORPARTNUMBERCANADAIRPARTNUMBERPART NAMEATA NO.LIFE LIMITVENDORPARTNUMBERCANADAIRPARTNUMBERPART NAMEPassenger Door52−11−02Torsion Spring − Lock Mechanism601R318911−1N/A2300 Flight Cycles52−11−03Spring − Outer HandleN/ALC085H81000 Flight CyclesNOTE:For P/N LC085H8 Detent Assembly Springs withmore than 1000 flight cycles time−in−service,discard within the next 100 flight hours, and every1000 flight cycles thereafter.52−11−04Bushing − Upper Latch FittingN/AN/ANAS537B16P034WNAS76A16−0114500 Flight Hours4500 Flight HoursPHASE−IN:Do this task no later than 4500 Flight Hours from theInitial Issue date of SB 601R−52−110.52−11−08Motor − Passenger Door601R94556−32R5206B50000 Flight CyclesCRJ200PAGE PRINTED ON 4-15-2014SUPPLEMENTARY REQUIREMENTSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsPage 2B−92TASKNUMBERTASK DESCRIPTIONTASKTHRESHOLD/INTERVALREASON FOR TASKF12−20−00−01Clean wing leading edges to remove foreign objects and contamination, andinsure that the sealant does not protrude above the skin surfaceorIncorporate MRB Task 27−35−01−09 and 27−35−01−11 (MRB ReportRev. 14, Temporary Revision 1−2−42, or later revision) into the approvedmaintenance program3 DaysCanadair EngineeringRequirementR22−11−A083−01Lubrication of the aileron autopilot servo and servo mount engage clutchfaces6500 Flight HoursRSI C−A083PHASE−IN:For aircraft with more than 5400 FH, do this task no later than 1100 FH fromNov 5/04.NOTE:Airworthiness Directive issued.R27−00−A053−01Discard of the Aileron Control Pulleys (as specified below)10500 Flight HoursRSI C−A053EFFECTIVITY:P/N 600−90800−2 (outboard wing − zone 591/691 − qty 4)P/N 600−90800−5 (aileron − zone 599/699 − qty 4)PHASE−IN:For aircraft with more than 9500 FH, do this task no later than 1000 FH fromNov 5/04.NOTE:Airworthiness Directive issued.CRJ200PAGE PRINTED ON 4-15-2014SUPPLEMENTARY REQUIREMENTSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsPage 2B−93TASKNUMBERREASON FOR TASKTASKTHRESHOLD/INTERVALTASK DESCRIPTIONR27−11−A082−01Lubrication of the Aileron Control Cables at the Wing Pulley Interfaces5500 Flight HoursRSI C−A082PHASE−IN:For aircraft with more than 3500 FH, do this task no later than 2000 FH fromNov 5/04.NOTE:Airworthiness Directive issued.R27−11−A082−02Lubrication of the Aileron Rear Quadrant and Trim Lever Bearings5500 Flight HoursRSI C−A082PHASE−IN:For aircraft with more than 3500 FH, do this task no later than 2000 FH fromNov 5/04.NOTE:Airworthiness Directive issued.R27−31−A024−01Task deleted Feb 23/07R27−50−300−01Restoration of the Outboard Flap Actuators (see NOTE)20000 Flight CyclesRBR−601R−300EFFECTIVITY:P/N 601R93103−19/−20 (Vendor P/N 853D100−19/−20)P/N 601R93104−19/−20 (Vendor P/N 854D100−19/−20)NOTE:Discard the following components at restoration:1. Seal P/N 853SC177−1.2. Retaining ring P/N SA13408−1.3. Outboard thrust bearing P/N SC14000−062.4. Outboard thrust race P/N SC14002−062A.5. Back−up ring P/N 853B143−1.CRJ200PAGE PRINTED ON 4-15-2014SUPPLEMENTARY REQUIREMENTSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsPage 2B−94TASKNUMBERREASON FOR TASKTASKTHRESHOLD/INTERVALTASK DESCRIPTIONR32−31−828−01Detailed Visual Inspection of the Landing Gear Control Handle Slider1000 Flight CyclesRSI C−828RBR−601R−300NOTE:This inspection requirement applies to Landing Gear Control HandleAssemblies Canadair P/N 601R50967−7 (Vendor P/N 7−45502−1) withsuffix Bafter the S/N and Canadair P/N 601R50967−9 (Vendor P/N7−45502−3) only.For Landing Gear Control Handle Assemblies that have been in service formore than 850 flight cycles on Jan 9/01, inspection is required within thenext 150 flight cycles.R32−31−828−02Restoration of the Landing Gear Control Handle Assembly Canadair P/N601R50967−7 (Vendor P/N 7−45502−1) with suffix Aafter S/N300 Flight CyclesRSI C−828RBR−601R−300NOTE:For Landing Gear Control Handle Assemblies that have been in service formore than 150 flight cycles on Jan 9/01, restoration is required within thenext 150 flight cycles (refer to Alert Service Bulletin A601R−32−083).R32−31−828−03Restoration of the Landing Gear Control Handle Assembly Canadair P/N601R50967−7 (Vendor P/N 7−45502−1) with suffix Bafter S/N andCanadair P/N 601R50967−9 (Vendor P/N 7−45502−3)4000 Flight CyclesRSI C−828RBR−601R−300R49−14−237−01Task deletedR49−20−241−01Task deletedC52−10−821−01Ensure that upper latch pins are correctly installed and functional(Post−Modsum TC601R13193)4000 Flight HoursRSI C−821CRJ200PAGE PRINTED ON 4-15-2014SUPPLEMENTARY REQUIREMENTSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsPage 2B−95TASKNUMBERREASON FOR TASKTASKTHRESHOLD/INTERVALTASK DESCRIPTIONR52−11−878−01Detailed Inspection of the Phase IV Passenger Door (Post−ModsumTC601R13193) Upper Latch Fitting Sleeve Bushings for migration(Pre−Modsum TC601R15596 or Pre−SB 601R−52−110)600 Flight HoursRSI C−878R52−30−205−01Task deletedR72−21−802−01Visual Check of the Engine Master Chip Detector Indicator(Pre−GE SB 72−0109)30 Flight Hours or3 Dayswhichever is greaterRSI C−802 Rev ACRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL REPAIR LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−96Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsNDTINTERIMINSPECTION INTERVALA/C#REPAIR #NDTMANUALDESCRIPTIONAPPROVALVALIDINSP.LEVEL51000 lb MTOW53000 lb MTOW#REF.VALIDUNTILLEVELTHRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)ALLREO 601R−53−00−026 AItem Removed (Oct 19/10)ALLREO 601R−53−00−030 CItem Removed (Oct 19/10)ALLREO 601R−53−00−033 CItem Removed (Oct 19/10)ALLREO 601R−53−00−034 DItem Removed (Oct 19/10)ALLREO 601R−53−11−006NC, A, B, CItem Removed (Oct 19/10)ALLREO 601R−53−11−010NC, A, B, C, DItem Removed (Oct 19/10)7003andUpREO 601R−53−11−048 AItem Removed (Oct 19/10)CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL REPAIR LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−97Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsA/C#INSPECTION INTERVALINSP.LEVELINTERIMAPPROVALVALIDUNTILDESCRIPTIONNDTMANUALREF.REPAIR #A/C#53000 lb MTOW51000 lb MTOWINSP.LEVELINTERIMAPPROVALVALIDUNTILDESCRIPTIONNDTMANUALREF.REPAIR #A/C#REPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)INSP.LEVELINTERIMAPPROVALVALIDUNTILDESCRIPTIONNDTMANUALREF.REPAIR #ALLREO 601R−53−61−1240NCItem Removed (Oct 19/10)ALLREO 601R−53−61−1285NCItem Removed (Oct 19/10)ALLREO 601R−57−21−130NCItem Removed (Oct 19/10)ALLREO 601R−57−21−131NCItem Removed (Oct 19/10)CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL REPAIR LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−98Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsSTRUCTURAL REPAIR LIMITATIONS FOR THE WING LOWER−PLANK ACCESS−HOLESDESCRIPTIONINSPECTION INTERVALStructural Repair Limitations for wing lower plank access holes repaired in accordance with the RepairEngineering Orders (REO) listed in Table 1, are detailed as follows:For all access holes, a maximum blend−out limit of 0.082 inch is permitted.A critical region for damage tolerance is defined to be four inches at either side of the access hole minordiameter axis for both forward and aft hole edges. Refer to Figure 2. Blends outside of this region do notaffect the existing inspection requirements in the Maintenance Requirements Manual (AWLs 57−21−146,57−21−147, 57−21−148, and 57−21−149).The operator may elect to inspect repairs in the critical region as follows:OPTION 1− At time of repair, do an inspection of the repaired area only. The next inspectioninterval shall be as per MRM (AWLs 57−21−146, 57−21−147, 57−21−148, and57−21−149) or per Table 2 or 3, whichever comes first. The subsequentinspections are per Table 2 or 3 for both threshold and repeat intervals.OPTION 2− At time of repair, do an inspection of the entire circumference of the access hole asper MRM (AWLs 57−21−146, 57−21−147, 57−21−148, and 57−21−149). Thesubsequent inspections are per Table 2 or 3 for both threshold and repeat intervals.If corrosion lies outside the critical region, do an inspection of the repaired area only.The subsequent inspections shall be per the MRM (AWLs 57−21−146, 57−21−147,57−21−148, and 57−21−149).Refer to Table 2 and Table 3CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL REPAIR LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−99Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsREO NUMBERISSUEEFFECTIVITYREO−601R−57−21−030NC, A, B, C, DALLREO−601R−57−21−039A7175REO−601R−57−21−047B7085REO−601R−57−21−049A7122REO−601R−57−21−050A7122REO−601R−57−21−056NC7145REO−601R−57−21−059A7104REO−601R−57−21−060A7130REO−601R−57−21−061A7135REO−601R−57−21−062NC7113REO−601R−57−21−064NC7007REO−601R−57−21−068A7009REO−601R−57−21−070A7122REO−601R−57−21−072A7128REO−601R−57−21−073NC7016REO−601R−57−21−081NC7009REO−601R−57−21−082NC7007REO−601R−57−21−119A7175REO−601R−57−21−120B7122REO−601R−57−21−121A7009REO−601R−57−21−125NC7210Wing Lower Plank Access Holes − Repair Engineering Orders (REO)Table 1CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL REPAIR LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−100Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsREO NUMBERISSUEEFFECTIVITYREO−601R−57−21−135NC7102REO−601R−57−21−139NC7113REO−601R−57−21−146NC7081REO−601R−57−21−148NC7159REO−601R−57−21−156NC7111REO−601R−57−21−158NC7009Wing Lower Plank Access Holes − Repair Engineering Orders (REO)Table 1CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL REPAIR LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−101Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness Limitations12345678910111216151413WG STA 148.019BL 45.00BL 0.00WG STA 264.00Designation of Wing Lower Plank Access HolesFigure 1WG STA 127.25CRJ200PAGE PRINTED ON 4-15-2014STRUCTURAL REPAIR LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Page 2B−102Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness Limitations4”4”4”4”Access HoleMinor Diameter AxisCritical Blend−Out RegionFigure 2CRJ200PAGE PRINTED ON 4-15-2014

# AIRWORTHINESS REQUIREMENTS CL−600−2B19



# Jun 10/13 Page 2B−103 Airworthiness Requirements

Part 2 of Maintenance Requirements Manual

Appendix B − Airworthiness Limitations 1 2

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7

8

9

10

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14 13 WG STA 148.019 BL 45.00 BL 0.00

WG STA 264.00



# Designation of Wing Lower Plank Access Holes

Figure 1 WG STA 127.25 

# CRJ200

PAGE PRINTED ON 4-15-2014

# AIRWORTHINESS REQUIREMENTS CL−600−2B19



# Jun 10/13 Page 2B−104 Airworthiness Requirements

Part 2 of Maintenance Requirements Manual

Appendix B − Airworthiness Limitations 4”

4” 4”

4” 

# Access Hole Minor

Diameter Axis



# Critical Blend−Out Region

Figure 2 

# CRJ200

PAGE PRINTED ON 4-15-2014STRUCTURAL LIFE LIMIT REPAIR LIMITATIONSAIRWORTHINESS REQUIREMENTSCL−600−2B19Jun 10/13Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsPage 2B−105INTERIMDISCARD TIMEA/C#REPAIR #PARTNAMEPARTNUMBERSERIALNUMBERINTERIMAPPROVALVAILD51000 lb MTOW53000 lb MTOW#REPAIR#NAMENUMBERNUMBERVAILDUNTILTC/FAACertification(Landings)JAACertification(Landings)TC/FAACertification(Landings)JAACertification(Landings)ALLREO 601R−32−10−008 NCItem Removed(Jan 12/11)ALLREO 601R−32−11−047 NCItem Removed(Jan 12/11)ALLREO 601R−32−11−161 NCItem Removed(Jan 12/11)ALLREO 601R−32−11−171 NCItem Removed(Jan 12/11)ALLREO 601R−32−11−182 NCItem Removed(Jan 12/11)ALLREO 601R−32−11−183 NCItem Removed(Jan 12/11)ALLREO 601R−32−21−109 NCItem Removed(Jan 12/11)CRJ200PAGE PRINTED ON 4-15-2014AIRWORTHINESS REQUIREMENTSTEMPORARY REVISION 2B−2229CFeb 10/14TR# 2B−2229Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsPage 1 of 1The contents of this Temporary Revision have been approved by the Chief, Engineering (or designate), National Aircraft Certification Branch, TransportCanada Civil AviationDate February 6, 2014Signed Remy KnoerrFILING INSTRUCTIONS:Insert this Temporary Revision (TR) 2B−2229 facing page 2B−47, in Part 2 of the Maintenance Requirements Manual (MRM).Record the incorporation of this Temporary Revision on the yellow RECORD OF TEMPORARY REVISIONS sheet at the frontof the MRM Part 2.Keep this Temporary Revison until normal revision service incorporates this information into the Maintenance RequirementsManual.DESCRIPTION:This Temporary Revision is issued to revise the INSPECTION INTERVAL (Threshold) of AWL NUMBER 53−61−147.STRUCTURAL AIRWORTHINESS LIMITATIONSNDTINSPECTION INTERVALAWLNUMBERMRB TASKREFERENCENDTMANUALDESCRIPTIONINSPECTTYPE51000 lb MTOW53000 lb MTOWNUMBERREFERENCEREF.SC OTYPETHRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)53−61−14753−61−22−02FS621.0 rear pressure bulkhead forward faceEFFECTIVITY:Post−Modsum TC601R16159SpecialDetailedDetailedVisual400004000092859285400004000092859285CL 600 2B19CRJ200PAGE PRINTED ON 4-15-2014AIRWORTHINESS REQUIREMENTSTEMPORARY REVISION 2B−2230CJan 31/14TR# 2B−2230Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsPage 1 of 1The contents of this Temporary Revision have been approved by the Chief, Engineering (or designate), National Aircraft Certification Branch, TransportCanada Civil AviationDate January 31, 2014Signed Remy KnoerrFILING INSTRUCTIONS:Insert this Temporary Revision (TR) 2B−2230 facing page 2B−10, in Part 2 of the Maintenance Requirements Manual (MRM).Record the incorporation of this Temporary Revision on the yellow RECORD OF TEMPORARY REVISIONS sheet at the frontof the MRM Part 2.Keep this Temporary Revison until normal revision service incorporates this information into the Maintenance RequirementsManual.DESCRIPTION:This Temporary Revision deletes AWL 27−40−101.STRUCTURAL AIRWORTHINESS LIMITATIONSNDTINSPECTION INTERVALAWLNUMBERMRB TASKREFERENCENDTMANUALDESCRIPTIONINSPECTTYPE51000 lb MTOW53000 lb MTOWNUMBERREFERENCEREF.SC OTYPETHRESHOLD(LANDINGS)REPEAT(LANDINGS)THRESHOLD(LANDINGS)REPEAT(LANDINGS)27−40−101Task deleted Dec 11/13CL 600 2B19CRJ200PAGE PRINTED ON 4-15-2014AIRWORTHINESS REQUIREMENTSTEMPORARY REVISION 2B−2231CJan 31/14TR# 2B−2231Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsPage 1 of 2The contents of this Temporary Revision have been approved by the Chief, Engineering (or designate), National Aircraft Certification Branch, TransportCanada Civil AviationDate January 31, 2014Signed Remy KnoerrFILING INSTRUCTIONS:Insert this Temporary Revision (TR) 2B−2231 facing page 2B−77, in Part 2 of the Maintenance Requirements Manual (MRM).Record the incorporation of this Temporary Revision on the yellow RECORD OF TEMPORARY REVISIONS sheet at the frontof the MRM Part 2.Keep this Temporary Revison until normal revision service incorporates this information into the Maintenance RequirementsManual.DESCRIPTION:This Temporary Revision revises the STRUCTURAL LIFE LIMITS for 27−42−01. Secondary Gearbox Housing,vendor P/N 261881804 deleted, replaced by Task C27−40−103−05 (incorporated under TR 2A−58).CL 600 2B19CRJ200PAGE PRINTED ON 4-15-2014AIRWORTHINESS REQUIREMENTSTEMPORARY REVISION 2B−2231CJan 31/14TR# 2B−2231Airworthiness RequirementsPart 2 of Maintenance Requirements ManualAppendix B − Airworthiness LimitationsPage 2 of 2STRUCTURAL LIFE LIMITSCANADAIRVENDOR51000 lb MTOW53000 lb MTOWATA NO.PART NAMECANADAIRPARTNUMBERVENDORPARTNUMBERTC/FAACertification(Landings)JAACertification(Landings)TC/FAACertification(Landings)JAACertification(Landings)Horizontal Stabilizer Trim ActuatingSystem27−42−01HSTA Trunnion Support and AttachingHArdware (SSI #27−40−103)Trunnion601R92386−1601R92386−3K601R92308−19N/AN/AN/A800008000080000800008000080000800008000080000800008000080000NOTE:1. The standard boltsNAS6206−8D/14D/20D &S8225−06−8D/14D/20D must either beremoved and replaced with newhardware at each HSTA removal /installation, or reused on the same HSTAtrunnion support installation at eachHSTA removal / installation. TheStandard bolts must be discarded whentrunnion reaches life limit.2. The interchange of standard bolts fromone HSTA trunnion support installation toanother is not permitted.CL 600 2B19CRJ200PAGE PRINTED ON 4-15-2014