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INTRODUCTION Page 1

AIRWORTHINESS LIMITATION ITEMS − PART 2

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AIRWORTHINESS LIMITATIONS INTRODUCTION

PURPOSE

The Dash 8 certification program identified certain maintenance tasks where the task must be performed on all aircraft, at or before the required interval, in order to meet Type certification requirements.

Structural Maintenance and one star (*) Certification Maintenance Requirement task intervals must not

be escalated without prior approval of the Transport Canada Certification Office. The information contained in Part 2 may be changed to reflect service and/or test experience or new analysis methods. Any

change(s) will be generated by the aircraft manufacturer and approved by the Transport Canada Certification Office.

Only those Safe Life structural items with a Safe Life less than 100,000 flights (the standard cut−off),

have been listed.

SCOPE

Five types of maintenance tasks are included in the Airworthiness Limitation Items (ALI):

A. CERTIFICATION MAINTENANCE REQUIREMENT (CMR) tasks where a limiting interval has

been calculated in a safety analysis to achieve compliance with certification regulations. These

tasks are identified by a 10 digit number (refer to MRB Report Introduction − Task Numbering),

first six digits are the MSI number followed by the three digit designator/sequence number (eg.

213000−101).

B. STRUCTURAL MAINTENANCE (ALI) tasks where inspections must be performed at, or before

the prescribed intervals. These tasks are identified by a 10 digit number (refer to Part 1, MRB

Report Introduction − Task Numbering), first six digits are the PSE number then the type of damage letter F (fatigue) followed by the three digit designator/sequence number (eg. 571000F101)

C. Discard tasks for SAFE LIFE COMPONENT items. These tasks are not represented in the MRB

Report and hence do not have assigned task numbers in either the MRB Report or the Airworthiness Limitation Items. Operators must monitor the accumulated flight cycles on their aircraft

and generate task cards to replace the safe life component, listed in the SAFE LIFE COMPONENTS or SUPPLEMENTS section, at or before a Safe Life Component reaches its Discard

Time. The Aircraft Maintenance Manual, PSM 1−84−2, Chapter 05−10, Time Limits, should also

be reviewed for items that have Discard Times listed.

D. Tasks in the FUEL SYSTEM LIMITATIONS (FSL) section must be performed at, or before the

prescribed intervals, whichever interval occurs first to achieve compliance with Special Federal

Aviation Regulation (SFAR) 88. These tasks are identified by a 10 digit number, the first six digits

which are identical for all FSL tasks, followed by the three digit designator/sequence number

(eg. 284000−401).

E. Design features in the CRITICAL DESIGN CONFIGURATION CONTROL LIMITATIONS

(CDCCL) must be preserved to prevent the occurrence of an unsafe condition that was identified

in the fuel tank assessment analysis in accordance with SFAR 88.

RULES APPLICABLE TO THE AIRWORTHINESS LIMITATION ITEMS

A. CMR one star (*) tasks and intervals are mandatory and cannot be changed, escalated or deleted, without the concurrence of the Transport Canada Certification Office.

B. CMR two star (**) task intervals may be adjusted in accordance with an operator’s approved

escalation practices or an approved reliability program, but the task may not be changed or deleted without prior Transport Canada Certification Office approval.
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RULES APPLICABLE TO THE AIRWORTHINESS LIMITATION ITEMS (Cont’d)

C. Structural Maintenance Program tasks that are identified as ALI, which includes all Fatigue

Damage tasks, may only have the task deleted or the threshold or subsequent interval escalated

with the approval of the MRB and Transport Canada Certification Office.

D. No Safe Life limit may be extended without prior approval of the Transport Canada Certification

Office.

E. Items that are life limited will be discarded according to the Safe Life Component Discard Time

published in the Airworthiness Limitation Items, Section 3 or Supplement (if applicable) of this

document. These limits may be revised per the manufacturers recommended guidelines with

the approval of the Transport Canada Certification Office.

NOTE: For Safe Life Components for Engine, APU and Propeller refer to Aircraft 

Maintenance Manual, PSM 1−84−2, Chapter 05−10, Time Limits.

F. For Aircraft Weight Increase Modsums 4−308807, 4−308907 and Modsum 4−309238, do as follows:

(1) The shortened inspection intervals declared for Modsums 4−308807, 4−308907 and

Modsum 4−309238 by means of the below factoring are applicable to aircraft with the

following modsums incorporated:

(a) Intermediate Gross Weight (IGW) Modsum 4−308807 (Max Take−off Weight =

63,930 lbs).

(b) High Gross Weight (HGW) Modsum 4−308907 (Max Take−off Weight = 64,500

lbs).

(c) Enhanced High Gross Weight (EHGW) Modsum 4−309238 (Max Take−off

Weight = 65,200 lbs).

(2) Structural Safe Life Components discard times listed in Section 3−2 must be multiplied by a factor of 0.918. (eg. 4,750 flights X 0.918 = 4,360 flights).

NOTE: This 0.918 factor does not apply to the Structural Safe Life Components of

the Nose and Main Landing Gear.

(3) The Fatigue damage Structural Maintenance Program task intervals listed in Section

2, for the Tasks that follow:

− 532047F101 to 532052F101 (inclusive) and 532055F101 (wing to fuselage joints)

− 541001F101 to 541017F101 (inclusive) (forward nacelle)

− 542001F101 to 542025F101 (inclusive) (aft nacelle)

− 571001F101 to 571030F101 (inclusive) (inner wing structure)

− 712001F101 to 712007F101 (inclusive) (engine mounts).

must be multiplied by a factor of 0.918 (eg. 2,258 threshold X 0.918 = 2,073 threshold, 1,057 repeat X 0.918 = 970 repeat), with exceptions noted below.

(4) The tasks with 250 interim value repeat intervals (see NOTE**) do not require adjustment and remain unchanged.
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RULES APPLICABLE TO THE AIRWORTHINESS LIMITATION ITEMS (Cont’d)

NOTE: These factored intervals are interim and will be subject to revision after

a more extensive evaluation of the weight increase effect at a later

date. The 40,000 flight intervals that exceed the Transport Canada

cut−off will be adjusted when the more extensive evaluation is 

completed.

NOTE**: The 250 flight repeat interval is a very conservative interim limit that

was chosen to be sufficiently low to not require analytical validation.

This limit does not therefore require reduction to cover the 0.918 

factor.

(5) Production repairs (documented in Section 1 of the aircraft−specific Structural Deviation Inspection Requirements (SDIR) manual, PSM 1−84−22) that introduce Structural ALI inspections affected by the IGW/HGW/EHGW interval reduction factor, will

be indentified in the applicable SDIR Section 1, Table 1 (under the Remarks column).

(6) In−service repairs (documented in Section 2 of the aircraft−specific SDIR manual)

that introduce Structural ALI inspections affected by the IGW/HGW/EHGW interval

reduction factor, do not need to be recalculated for IGW/HGW/EHGW operation. The

applicable Repair Drawing (RD) will include the revised task interval, considering the

IGW/HGW/EHGW interval reduction factor for the affected tasks. Operators need to

update the applicable SDIR Section 2, Table 2 (Remarks column against affected

task(s)), in order to clarify the application of the IGW/HGW/EHGW interval reduction

factor for the affected tasks specified in the RD.

(7) In−service repairs (documented in Section 3 of the aircraft−specific SDIR manual)

that introduce Structural ALI inspections affected by the IGW/HGW/EHGW interval

reduction factor, do not need to be recalculated for IGW/HGW/EHGW operation if operators have coordinated with the persons who will do the repair(s) (to make sure that

the IGW/HGW/EHGW interval reduction factor is used in the Damage Tolerance Analysis that is performed for the affected repair, when calculating task intervals). Operators also need to update the applicable SDIR Section 3, Table 3 (Remarks column

against the affected task(s)), in order to identify the application of the IGW/HGW/

EHGW interval reduction factor for the affected tasks.

G. Major structural components (such as horizontal stabilizers, ailerons, flaps, etc), if interchanged

between aircraft, have to be tracked (in Hrs./Cycles), to make sure that the applicable ALI tasks

against such parts are performed at the time the interchanged structural component reaches the

specified inspection interval. This also applies to Safe Life components that are interchanged

between aircraft, to make sure that such parts are removed from service at the specified life 

limitation against the component. When a major structural component and/or Safe Life component is interchanged between aircraft, Operators should review the Maintenance Program to

verify inspection/maintenance requirements against such components.

SPECIFIC STRUCTURAL INSPECTIONS

The Structural Maintenance Program contained in this document is applicable to the structure certificated to damage tolerant requirements under the Type Approval Certificate. Individual aircraft, with

deviations to Principal Structural Elements (PSE’s) from standard structure that have occurred during

production and/or in service, may require additional inspection tasks which are Specific Airworthiness

Limitations with applicable regulatory approval.
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SPECIFIC STRUCTURAL INSPECTIONS (Cont’d)

Operators must refer to the aircraft−specific Structural Deviation Inspection Requirements (SDIR)

manual, PSM 1−84−22, for additional inspection requirements due to structural deviations to PSE’s that

may occur during production or while in service. This is a customized aircraft−specific document which

will bear a document number SDIR−xxxx, where xxxx is the applicable aircraft serial number. A SDIR

document will be provided for each aircraft at time of delivery.

SDIR tasks are subject to the provisions of Rule F. (For Aircraft Weight Increase Modsums 4−308807,

4−308907 and Modsum 4−309238).

The SDIR document consists of the following sections:

A. Table of contents.

B. SDIR introduction.

This one page introduction is identical for all documents; it is not customized for aircraft serial

number. It gives information regarding the inspection requirements for structural deviations and

explains the structure of the SDIR document.

C. Section 1 − Production Deviation Inspection Requirements (PDIR).

This section contains information regarding the inspection requirements for production structural deviations. It consists of a cover page listing applicable tasks and a Specific Airworthiness

Limitations Approval page for each task that is approved by Transport Canada. This section

also contains detailed task procedures for these inspections.

D. Section 2 − In−service Deviation Inspection Requirements (IDIR).

(de Havilland generated repairs)

This section contains information regarding any inspection requirements for in−service structural deviations.

Operators must update this section when Transport Canada approved inspection requirements

have been provided in either;

(a) de Havilland generated Repair Drawings (RDs).

or

(b) When the operator uses repairs which have been defined in the de Havilland Structural

Repair Manual (SRM) as affecting damage tolerance requirements.

E. Section 3 − In−service Deviation Inspection Requirements (IDIR).

(Non de Havilland generated repairs)

This section is provided for operators to record in−service structural deviations which require

inspections originating from non de Havilland generated repairs, modifications, etc;.
	

Page 1 of 2

To: Distribution

Date: Apr 21/2010

Subject: DHC−8−400 Maintenance Requirements Manual, PSM 1−84−7, Part 2, 

Airworthiness Limitation Items.

This is Revision 5 to the Airworthiness Limitation Items, Part 2 of the DHC−8−400 Maintenance 

Requirements Manual (PSM 1−84−7), dated Apr 21/2010.

NOTE: This revision is a complete re−issue of PSM 1−84−7, Part 2 to make changes to the page 

header. Revision bars will be shown for new content only applicable to Revision 5.

Refer to the Revision Highlights pages for changes incorporated at Revision 5.

1. An overview of changes to Revision 5 is as follows:

Front matter changes are as follows:

Revised the Title page.

Revised the List of Effective Pages (LEP).

Revised the Record of Revisions page.

Revised the Record of Temporary Revisions page.

Revised the Revision Highlights pages.

Revised the Contents pages.

Refer to the Revision Highlights pages for change highlights to the following:

ALI Introduction.

Section 1 CMR pages for 1−0, 1−21, 1−22, 1−23, 1−24, 1−26, 1−27, 1−28, 1−29, 

1−30, 1−31, 1−32, 1−34, 1−36, 1−52 and 1−61.

Section 2 Structural Maintenance Program pages for 2−0, 2−52, 2−53, 2−54, 2−55, 

2−56, 2−57 and 2−71.

Section 3 − Safe Life Components pages for 3−0, 3−1 and 3−2.

Added new Section 4 − Fuel System Limitations pages for 4−0 and 4−1.

Added new Section 5 − Critical Design Configuration Control Limitations pages for 

5−0 and 5−1.

2. Incorporate Revision 5 as follows:

Use the revised LEP as a guide to remove and discard the applicable pages and to 

insert the revised/new pages supplied. The asterisks in the LEP indicate 

revised/new/deleted pages.
	

Page 2 of 2

Remove Temporary Revisions ALI−27 through ALI−96, inclusive.

Enter the applicable information in the “Inserted by/Insertion Date” columns for 

Revision 5 in the Record of Revisions page.

3. We recommend that this Transmittal Letter be retained for record purposes

and placed in the front of the manual.

John Ilkow

Senior Technical Writer

Q Series Manuals

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LIST OF EFFECTIVE PAGES (LEP)

Reference Page Date Reference Page Date

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RECORD OF REVISIONS

PART 2 of the Maintenance Requirements is valid only when it incorporates all revisions issued. DOT approval of each revision is recorded below. (See Highlights page for changes.)

Revision

Number Issue Date DOT Approved By/Date Inserted By/Date


	0  @,- .A .AAA


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RECORD OF REVISIONS (Cont’d)

Revision

Number Issue Date DOT Approved By/Date Inserted By/Date
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Effective Temporary Revisions

PAGE 1 

EFFECTIVITY: ALL

EFFECTIVE TEMPORARY REVISIONS

The following Temporary Revisions are effective in your manual at Revision 5 dated Apr 21/2010.

TR

NO.

SUBJECT

PAGE NO. DATE

ALI−97 3−2 Pg 1 Nov 09/09

ALI−98 1-61 Pg 1 Nov 09/09

ALI−103 Section 4-1 Apr 26/10

ALI−104 Section 5-1 Apr 26/10

ALI−105 2-53 Pg 1 Jun 17/10

ALI−106 2-56 Pg 1 Jun 17/10

ALI−107 2-52 Pg 1 Jun 18/10

ALI−108 2-54 Pg 1 Jun18/10

ALI−109 2-57 Pg 1 Jun 18/10

ALI−110 3-1 Pg 1 Aug 23/10

TR

NO.

SUBJECT

PAGE NO. DATE

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RECORD OF TEMPORARY REVISIONS

Retain this Record of Temporary Revisions in the front of PART 2 of the

manual. When Temporary Revisions are issued or cancelled, enter the relevant information in the columns below.

T.R.

No.

Date Date

Removed

Subject

Inserted Page No.

T.R.

No.

Date Date

Removed

Subject

Inserted Page No.

Temporary Revisions up to and including TR ALI−96 are incorporated in this

Revision.
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TEMPORARY REVISIONS INDEX (Cont’d)

T.R.

No.

Date Date

Removed

Subject

Inserted Page No.

T.R.

No.

Date Date

Removed

Subject

Inserted Page No.
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REVISION HIGHLIGHTS

This Revision Highlights, lists changes made to Part 2, Airworthiness Limitation Items at each revision.

The movement code under the heading ‘Code’ is as follows; N for new, R for revised and D for deleted.

REVISION NO. − 1

Item Code Changes/Reason

Introduction R Rule F added for HGW aircraft Modsum 4−113085 (TR ALI−04), interim values 

have been revised from 1,600 to 2,851 flights.

Introduction R In Specific Structural Inspections, PSM 1−84−22 number added to identify SDIR

as a manual.

Section 1 CMR’s

R 215100−104 and 215100−105, revised from Operational Check to Functional

Check.

R 341100−102, limiting interval revised from 8,000 FH to 6,680 FH.

R 612000−106, limiting interval revised from 4,000 FH to 18,000 FH.

Section 2 Structural Maintenance Program

R All interim threshold intervals in chapters 52, 53 and 55 revised from 1,600 to

2,851 flights.

N 531019F101, new task added (TR ALI−02).

R 532003F101, interim intervals replaced.

R 532017F101, split into separate tasks, now above floor level only, replaced interim intervals,

532017F102 added for below floor level.

R 532061F101, revised from SDI to DVI, asterisk removed from repeat interval,

the 250 repeat is not interim.

R 541017F101, Level I damage interval added.

R 542009F101, revised from SDI to DVI.

N 542015F102, new task added (TR ALI−03), revised from DVI to SDI.

R 542019F101, revised task code from DVI to ‘DVI or SDI’

R 542023F101, revised task code from SDI to ‘DVI/SDI’

R 560001F101, revised task code from DVI to GVI, precluded and transferred to

zonal task Z200−01E.

R 560002F101, interim intervals replaced.
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Item Code Changes/Reason

Section 2 (Cont’d)

R 560003F101, revised task code from DVI to GVI, precluded and transferred to

zonal tasks Z200−07E and Z200−10E.

R 571003F101, revised Sta. from YW155.2 to YW98.6

R 571004F101, revised Sta. from YW155.2 to YW98.6

R 571005F101, revised Sta. from YW136.3 to YW117.5

R 571008F101, revised repeat cut−in and repeat intervals.

R 571015F101, revised Sta. from YW42.0 to YW173.2 and YW42.0 to YW173.2

R 571016F101, revised Sta. from YW42.0 to YW173.2

R 571019F101, revised intervals.

R 571020F101, revised intervals.

R 571021F101, revised intervals.

R 571023F101, interim intervals replaced.

R 571024F101, interim intervals replaced.

R 571025F101, interim intervals replaced.

R 571026F101, interim intervals replaced.

R 575005F101, split into separate tasks, now No. 1, No. 2 and No. 3 flap tracks

only, intervals revised

575005F102 added for flap track No. 4,

575005F103 added for flap track No. 5.

R 575007F101, revised task code from SDI to DVI.

R 575008F101, split into separate tasks, now for DVI portion, interval revised

575008F102, added for SDI portion.

R 575009F101, revised task code from DVI to SDI, (do in conjunction with

575010F101) added.

R 575010F101, replaced interim repeat interval, (do in conjunction with

575009F101) added.

R 575019F101, revised task code from DVI to ‘DVI/SDI’, intervals revised.

R 575022F101, revised threshold and repeat cut−in intervals.

R 576007F101, replaced interim repeat interval.
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Item Code Changes/Reason

Section 2 (Cont’d)

R 576008F101, replaced interim repeat interval.

R 712001F101 thru 712005F101, ‘Do in conjunction with engine change’ added to

Remarks column.

R 712004F101, revised intervals, only bolt interval used as disassembly of mount

required.

R 712005F101, revised intervals, only bolt interval used as disassembly of mount

required.

Section 3 Safe Life Components

Systems Safe Life

R TR ALI−05 incorporated.

R #1 Bootstrap reservoir discard time from 20,000 to 9,300 flights (not interim).

R #2 Bootstrap reservoir discard time from 20,000 to 9,300 flights (not interim).

R Hydraulic pressure switch P/N 967002−1 discard time from 20,000 to 6,000

flights (not interim).

R Hydraulic pressure switch P/N 966995−1 discard time from 20,000 to 6,000

flights (not interim).

R Hydraulic pressure switch P/N 966996−1 discard time from 20,000 to 6,000

flights (not interim).

D Hydraulic pressure switch P/N 966996−3, removed (no restriction).

D Heat exchanger bypass valve, removed (not on production aircraft).

D Standby power unit, removed (no restriction).

D NLG drag strut, removed (covered by Structures).

Structural Safe Life

R TR ALI−06 incorporated.

R NLG, drag strut assy. P/N 47300−5 discard time from 9,400 to 11,200 flights.
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REVISION NO. − 2

Item Code Changes/Reason

Introduction R Rule F for high gross weight aircraft revised, interim values have been revised

from 2,851 to 5,513 flights.

Section 1 CMR’s

R 262000−120, added MRBR number in task description (new task added at

MRBR Rev. 1)

Section 2 Structural Maintenance Program

R All interim threshold intervals in chapters 52, 53 and 55 revised from 2,851 to

5,513 flights.

R 521002F101, interim intervals replaced (task was split).

N 521002F102, New task added (task was split).

R 521004F101, interim intervals replaced (TR ALI−08).

R 3./AA/A, interim intervals replaced.

R 523004F101, interim intervals replaced (TR ALI−09).

R 532003F101, DVI and intervals added.

R 532004F101, interim intervals replaced.

R 532005F101, interim intervals replaced.

R 532006F101, interim intervals replaced.

R 532007F101, interim intervals replaced.

R 532008F101, interim intervals replaced.

R 532009F101, interim intervals replaced.

R 532010F101, interim intervals replaced.

R 532011F101, interim intervals replaced.

R 532012F101, interim intervals replaced.

R 532013F101, interim intervals replaced.

R 532014F101, interim intervals replaced.

R 532015F101, interim intervals replaced.
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Item Code Changes/Reason

Section 2 (Cont’d)

R 532016F101, interim intervals replaced.

R 532027F101, interim intervals replaced (task was split).

N 532027F102, New task added (task was split).

N 532027F103, New task added (task was split).

R 532044F101, interim intervals replaced.

R 532046F101, interim intervals replaced.

R 532052F101, interim intervals replaced.

R 532061F101, discard time added for pre modsum 4−113130 and interim inter−

vals added for post modsum 4−113130 (TR ALI−10).

R 532063F101, interim intervals replaced.

R 542006F101, repeat cut−in revised.

R 542013F101, repeat cut−in revised.

N/R 542024F101, New task added (TR ALI−07), intervals revised, added modsums

R 552001F101, Intervals revised.

R 552003F101, Intervals revised.

R 553001F101, Intervals revised.

R 553002F101, Intervals revised.

N 571015F102, New task added (task was split).

R 571028F101, intervals revised (task was split).

N 571028F102, New task added (task was split).

R 575012F101, intervals revised.

R 575022F101, interim repeat interval replaced.

Section 3 Safe Life Components

Systems Safe Life

R Elevator PCU, new P/N 390600−1007 added.

R Rudder PCU, new P/N 390500−1011 added.
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Item Code Changes/Reason

Section 3 (Cont’d)

R MLG shock strut, discard time from 10,800 to 30,000.

R MLG drag strut, discard time from 10,800 to 30,000.

R MLG Yoke assembly, new P/N 46360−5 added.

R MLG stabilizer brace, discard time from 10,800 to 30,000.

R MLG Uplock assembly, discard time from 10,800 to 30,000.

R MLG Retraction actuator, discard time from 10,800 to 30,000.

R MLG Lock actuator assembly, discard time from 10,800 to 30,000.

R MLG Auxiliary actuator assembly, discard time from 10,800 to 30,000.

R MLG Door actuator assembly, discard time from 10,800 to 30,000.

R NLG shock strut, discard time from 12,000 to 48,000.

R NLG Lock actuator assembly, discard time from 12,000 to 48,000.

R NLG Retraction actuator assembly, discard time from 12,000 to 48,000.

R NLG Door actuator assembly, discard time from 12,000 to 48,000.

R Power unit assembly (gearbox and motor) split

Nosewheel steering gearbox, P/N 0080−0037−1 discard 4,800

Nosewheel steering hydraulic motor, P/N RS1267−1 and−2 discard 11,700.

R Landing gear selector valve, discard time from 15,400 to 40,900.

D Bypass valve, removed (no restriction).

Structural Safe Life

R MLG shock strut, discard time from 10,800 to 30,000.

R MLG drag strut, discard time from 10,800 to 30,000.

R MLG Yoke assembly, new P/N 46360−5 added.

R MLG stabilizer brace, discard time from 10,800 to 30,000.

R NLG shock strut, discard time from 12,000 to 48,000.

R NLG Drag Strut, new P/N 47300−5 added.
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REVISION NO. − 3

Item Code Changes/Reason

Introduction R Rule F for high gross weight aircraft revised (TR ALI−17).

Section 1 CMR’s

D 221100−102, Task deleted (TR ALI−21).

R 341200−101, New Task added (TR ALI−11). Task deleted (TR ALI−13).

Section 2 Structural Maintenance Program

R 2−0, paragraphs 2.2, 2.6, and 2.7 revised.

R All interim threshold intervals in chapters 52, 53 and 55 previously at 5,513 flights

now revised to 10,000 flights.

R 521002F102, corrected Task description.

R 521004F101, intervals for threshold, repeat cut−in revised, Remarks column for

pre modsum 4−154293, post modsum 4−154293 added (TR ALI−18).

NOTES for pre modsum 4−154293, post modsum 4−154293 added (TR

ALI−19).

R 522002F101, revised task code from SDI to DVI, interval revised.

R 523003F101, pre modsum 4−154301 added to Remarks column, intervals for

post modsum 4−154301 added.

R 523004F101, revised task code from SDI to DVI. Pre modsum 4−154301 added

to Remarks column, intervals for post modsum 4−154301 added.

R 531019F101, pre modsum 4−113183, 4−113194 added to Remarks column, intervals for post modsum 4−113183, 4−113194 added.

R 532034F101, revised task code from SDI to DVI, intervals revised.

R 532035F101, revised task code from SDI to DVI, intervals revised.

R 532038F101, revised task code from SDI to DVI, intervals revised.

R 532044F101, revised task code from SDI to ‘DVI or SDI’, Original pre modsum

4−154299 added to Remarks column, intervals for Retrofit post modsum

4−154299 added.

R 532045F101, intervals revised.

R 532047F101, revised task code from SDI to DVI, intervals revised.

R 532048F101, revised task code from SDI to DVI, intervals revised.
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Item Code Changes/Reason

Section 2 (Cont’d)

R 532059F101, revised task code from SDI to DVI, intervals revised.

R 532061F101, pre modsum 4−113130 and mandatory discard time added to Remarks column. Intervals for post modsum 4−113130 added (TR ALI−15).

R 532063F101, revised task code from SDI to DVI, pre modsum 4−154355 added

to Remarks column, intervals for post modsum 4−154355, pre modsum

4−154507 and post modsum 4−154507 added.

R 533003F101, revised task code from SDI to DVI, intervals revised.

R 541017F101, revised task code from DVI to SDI, intervals revised (TR ALI−20).

R 542001F101, deleted statement from Remarks column.

R 542006F101, added statement to Remarks column.

R 542015F101, task description revised, pre modsum 4−113159, 4−113305 and

post modsum 4−113159, 4−113305 added to Remarks column. Intervals revised.

R 542015F102, revised task code from SDI to ‘DVI or SDI’, pre modsum 4−113279

and post modsum 4−113279, 4−113159 added to Remarks column. Intervals

revised (TR ALI−12).

N 542015F103, New task added.

N 542015F104, New task added.

N 542015F105, New task added.

N 542015F106, New task added.

N 542015F107, New task added.

R 542018F101, revised task code from B + ‘DVI or SDI’ pre modsum

4−156142, 4−156156, post modsum 4−156142 and mandatory discard time

added to Remarks Column. Intervals revised.

N 542018F102, New task added.

N 542018F103, New task added.

N 542018F104, New task added.

N 542018F105, New task added.

N 542018F106, New task added.
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Item Code Changes/Reason

Section 2 (Cont’d)

N 542018F107, New task added.

R 542024F101, initial intervals revised.

R 551006F101, repeat interval revised.

R 551008F101, repeat interval revised.

R 553004F101, initial intervals revised.

R 553005F101, initial intervals revised.

R 553006F101, initial intervals revised.

R 553007F101, revised task code from SDI to DVI, intervals revised.

R 553008F101, revised task code from DVI to DVI/MECH.

R 571015F102, intervals revised (TR ALI−14).

Section 3 Safe Life Components

Systems Safe Life

R TR ALI−16, TR ALI−22 incorporated.

Structural Safe Life

R Nacelle to rear spar attachment pins, discard time from 4,750 to 10,000.

R MLG Yoke attachment pins, discard time from 5,000 to 10,000.

R A Frame (drag strut attachment), post modsum 4−113305 discard time from

5,250 to 10,000.

R MLG Drag Strut attach. fitting, new P/Ns and discard times added for pre modsum 4−113159, post modsum 4−113159, 4−156178, 4−113305 and 4−156173.

R MLG Drag Strut attach. pin, discard time from 5,000 to 10,000.

R MLG Side Brace fitting, new P/Ns and discard times added for pre modsum

4−156138 and post modsum 4−156138.

R Side Brace fitting pins, discard times from 5,000 to 10,000.

R MLG Side Brace fitting back−up, discard time from 5,500 to 10,000.

R NLG Trunnion plate assy. (LH), P/N changed from 85313831−001 to

85313831−ALL.
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Item Code Changes/Reason

Section 3 (Cont’d)

R NLG Trunnion plate assy. (RH), P/N changed from 85313845−001 to

85313845−ALL.

R NLG Uplock fitting assy., P/N changed from 85313819−005 to 85313819−ALL.
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REVISION NO. − 4

Item Code Changes/Reason

Introduction R In Specific Structural Inspections, statement added to address the effects of

Rule F (High Gross Weight) on SDIR tasks.

Section 2 Structural Maintenance Program

R 521001F101, intervals revised.

R 531004F101, revised task code from DVI/SDI to DVI and SDI.

R 531005F101, revised task code from DVI/SDI to DVI and SDI.

R 531006F101, revised task code from DVI/MECH to SDI.

R 531012F101, repeat interval revised.

R 531013F101, revised task code from DVI/SDI to DVI and SDI.

R 532008F101, intervals revised.

R 532009F101, repeat cut−In intervals revised, repeat interval revised (for SDI

insp.).

R 532012F101, repeat interval revised for DVI inspection.

R 532013F101, repeat cut−In interval, repeat interval revised.

R 532014F101, repeat cut−In interval, repeat interval revised.

R 532020F101, revised task code from SDI to DVI or SDI, split into separate tasks,

now above floor only, interim intervals replaced.

N 532020F102, new task added (under floor).

R 532022F101, revised task code from SDI to DVI or SDI, split into separate tasks,

now above floor only, interim intervals replaced.

N 532022F102, new task added (under floor).

R 532023F101, revised task code from SDI to DVI or SDI, split into separate tasks,

now above floor only, interim intervals replaced.

N 532023F102, new task added (under floor).

R 532024F101, revised task code from SDI to DVI or SDI, split into separate tasks,

now above floor only, interim intervals replaced.

N 532024F102, new task added (under floor).
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Item Code Changes/Reason

Section 2 (Cont’d)

R 532025F101, revised task code from SDI to DVI or SDI, interim intervals replaced. New Repeat interval for optional internal DVI of strap and frame added.

R 532027F103, repeat interval revised.

R 532034F101, station numbers corrected, split into separate tasks, now above

floor only, intervals revised, Pre/Post Modsum 4−154337, 4−154672 information

added to Remarks column (TR ALI−25).

N 532034F102, new task added (under floor, TR ALI−25).

R 532035F101, station numbers corrected.

R 532041F101, comment added to Remarks column.

R 532044F101, intervals for post modsum 4−154299 (Production version) added.

R 532051F101, interim intervals replaced.

R 532052F101, revised task code from DVI/MECH to SDI, intervals revised.

R 532058F101, revised task code from SDI to DVI, interim intervals replaced.

R 532061F101, Pre Modsum 4−154328 information added to Remarks column, intervals for Post Modsum 4−154328 added.

R 541013F101, revised task code from DVI/MECH to SDI.

R 541017F101, removed asterisks from intervals.

R 542001F101, revised task code from DVI to SDI (now uses boroscope).

R 542007F101, revised task code from DVI/SDI to DVI and SDI.

R 542008F101, revised task code from DVI/MECH to SDI.

R 542010F101, revised task code from SDI/MECH to SDI.

R 542011F101, revised task code from SDI/MECH to SDI.

R 542015F102, deleted intervals and comments for Post modsum DVI (this method no longer practical).

R 542016F101, revised task code from DVI/SDI to DVI and SDI.

R 542017F101, revised task code from DVI/MECH to SDI.

R 542021F101, revised task code from DVI to SDI (now uses boroscope).

R 542022F101, revised task code from DVI to SDI (now uses boroscope).
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Item Code Changes/Reason

Section 2 (Cont’d)

R 542023F101, revised task code from DVI/SDI to DVI and SDI.

R 552002F101, intervals revised.

R 553001F101, revised task code from DVI to SDI (now uses boroscope), intervals

revised.

R 553002F101, revised task code from DVI to SDI (now uses boroscope), intervals

revised.

R 553003F101, revised task code from DVI to SDI (now uses boroscope).

R 553008F101, revised task code from DVI/MECH to SDI, intervals revised.

R 553009F101, repeat cut−in interval, repeat interval revised.

R 553010F101, repeat interval revised.

R 554001F101, repeat cut−in interval, repeat interval revised

R 554002F101, repeat interval revised.

R 554005F101, repeat interval revised.

R 554008F101, repeat interval revised.

R 554010F101, revised task code from DVI to SDI (now uses boroscope).

R 571027F101, revised task code from DVI/SDI to DVI and SDI.

R 571028F101, revised task code from DVI/SDI to DVI, revised task description 

(now lugs of EMS Fitting only), intervals revised, comments removed from Remarks column.

R 571028F102, revised task description (now body of EMS Fitting only), intervals

revised, comments removed from Remarks column.

N 571028F103, new task added (Wing and Back−Up Fittings).

R 571029F101, revised task code from DVI/SDI to DVI and SDI.

R 572006F101, revised task code from DVI/SDI to DVI and SDI.

R 575007F101, revised task code from DVI to SDI (now uses boroscope).

R 575008F101, revised task code from DVI to SDI (now uses boroscope), revised

task description (added Forward Portion).

R 575008F102, revised task description (added Aft Portion).
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Item Code Changes/Reason

Section 2 (Cont’d)

R 575018F101, repeat interval revised.

R 575019F101, revised task code from DVI/SDI to DVI and SDI.

R 576001F101, revised task code from DVI/SDI to DVI and SDI.

R 576002F101, revised task code from DVI/SDI to DVI and SDI.

Section 3 Safe Life Components

Systems Safe Life

R TR ALI−26 incorporated.

Structural Safe Life

R TR ALI−24 incorporated.

R NLG Trunnion Plate Assy, added information for Pre modsum 4−126289, Post

modsum 4−126289 (Rework and Production).

R MLG Shock Strut Assy, added information for Orifice Tube, Upper Bearing and

Piston Plug.

R Added “and prev.” statement (about previous (lower dash) numbers) to Notes for

Series 400 (Structural).
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REVISION NO. − 5

Item Code Changes/Reason

Introduction R Revised Scope (added SFAR 88 information) (TR ALI−58). Revised Rule F (updated and reformatted information) (TR ALI−49 and TR ALI−63). Added Rule G

(TR ALI−49). Revised SDIR task information (updated Modsum references) (TR

ALI−63). Added items (5) (6) and (7) to Rule F.

Section 1 CMRs

D 291000−101, Task deleted (TR ALI−51).

R 323400−101, revised Task Description (added 32.4c and 32.8 to CCMR IDENT

NO. reference information) (TR ALI−93).

N 525000−101, new Task added (TR ALI−41).

N 612000−103, new Task added (TR ALI−33).

Section 2 Structural Maintenance Program

R 2−0, paragraph 2.3, deleted text that referred to NOTE 1 (no longer applicable to

the Dash 8 Series 400 ALI Part 2), revised other text (was DHI and the MRB, is

now local regulatory authorities).

R 2−0, paragraph 2.5, revised text of NOTE 1 (deleted references to the Non−Destructive Manual, as this is no longer applicable to the Dash 8 Series 400 ALI Part

2; NOTE 1 now shows new text about shortened inspection intervals (Rule F,

Introduction).

R 521002F102, revised Task Code from DVI to SDI (TR ALI−87).

R 521003F101, revised interim intervals (TR ALI−34). Intervals added/revised for

Post Modsum (TR ALI−52 and TR ALI−54). Revised Remarks column (TR

ALI−61), intervals (TR ALI−68). Revised intervals (TR ALI−90).

R 521004F101, revised intervals for Post Modsum, revised information in NOTE**

and Remarks column (TR ALI−34). Post Modsum intervals added/revised (TR

ALI−52, TR ALI−68 and TR ALI−70).

R 522001F101, revised interim intervals (TR ALI−34 and TR ALI−52). Revised

Task Code from SDI to DVI or SDI, revised/added intervals, revised Remarks

column (TR ALI−78).

N 522001F102, new task added (TR ALI−78).

R 522002F101, intervals added for Post Modsum (TR ALI−29). Post Modsum intervals revised (TR ALI−52, TR ALI−70 and TR ALI−78).

R 523001F101, revised interim intervals (TR ALI−34 and TR ALI−52).

R 523002F101, revised interim intervals (TR ALI−34 and TR ALI−52).
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REVISION NO. − 5 (Cont’d)

Item Code Changes/Reason

Section 2 (Cont’d)

R 523003F101, revised interim intervals (TR ALI−52 and TR ALI−70).

R 523004F101, revised intervals for Post Modsum (TR ALI−30, TR ALI−52 and TR

ALI−70). Revised Remarks column (added comment about restart of Threshold)

(TR ALI−70).

R 524001F101, revised interim intervals (TR ALI−34 and TR ALI−52). Revised

Task Code from SDI to DVI (TR ALI−81). Revised Repeat interval (TR ALI−90).

R 524002F101, revised interim intervals (TR ALI−34 and TR ALI−52).

R 531016F101, revised Remarks column (added comment about restart of

Threshold) (TR ALI−42).

R 531019F101, revised interim intervals for Post modsum (TR ALI−35 and TR

ALI−53).

R 532018F101, revised Task Code from SDI to DVI or SDI, split into separate tasks

(now above floor only), replaced interim intervals (TR ALI−35).

N 532018F102, new task added (under floor) (TR ALI−35).

R 532019F101, revised intervals (TR ALI−35 and TR ALI−53).

R 532020F101, revised intervals (TR ALI−35).

R 532020F102, revised intervals (TR ALI−35).

R 532021F101, revised Task Code from SDI to DVI or SDI, split into separate tasks

(now above floor only), replaced interim intervals (TR ALI−35).

N 532021F102, new task added (under floor) (TR ALI−35).

R 532023F101, revised intervals (TR ALI−32).

R 532023F102, revised intervals (TR ALI−32).

R 532026F101, revised intervals (TR ALI−35). Revised Task Code from DVI to

DVI or SDI, revised intervals, added inspection methods (TR ALI−47).

R 532028F101, revised interim intervals (TR ALI−35 and TR ALI−53).

R 532029F101, revised interim intervals (TR ALI−35 and TR ALI−53).

R 532030F101, revised Task Code from SDI to DVI, split into separate tasks (now

above floor only), replaced interim intervals (TR ALI−35).
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REVISION NO. − 5 (Cont’d)

Item Code Changes/Reason

Section 2 (Cont’d)

N 532030F102, new task added (under floor) (TR ALI−35).

R 532031F101, revised interim intervals (TR ALI−35 and TR ALI−53).

R 532032F101, revised Task Code from SDI to DVI, split into separate tasks (now

above floor only), replaced interim intervals (TR ALI−35).

N 532032F102, new task added (under floor) (TR ALI−35).

R 532033F101, revised interim intervals (TR ALI−35 and TR ALI−62).

R 532034F101, revised intervals (TR ALI−62).

R 532034F102, revised Remarks column (added comment about restart of

Threshold) (TR ALI−42), revised intervals (TR ALI−62).

R 532035F101, revised interim intervals (TR ALI−47).

R 532036F101, revised Task Code from SDI to DVI, split into separate tasks (now

above floor only), replaced interim intervals (TR ALI−35).

N 532036F102, new task added (under floor) (TR ALI−35).

R 532037F101, revised interim intervals (TR ALI−35 and TR ALI−62). Revised

Task Code, Task Description (from SDI to DVI) (TR ALI−84).

R 532038F101, split into separate tasks (now Upper Sill only), revised intervals,

Remarks column (added Pre, Post Modsum information) (TR ALI−35). Revised

intervals, Remarks column (deleted Post Modsum 4−054127) (TR ALI−53). Revised intervals (TR ALI−62).

N 532038F102, new task added (Lower Sill) (TR ALI−35). Revised intervals (TR

ALI−53 and TR ALI−62).

R 532039F101, revised Task Code from SDI to DVI, revised interim intervals, revised Remarks column (added Pre Modsum 4−154857 information) (TR

ALI−35). Revised intervals, Remarks column (deleted Pre Modsum 4−154857

information) (TR ALI−48).

R 532040F101, revised interim intervals (TR ALI−35 and TR ALI−62).

R 532041F101, revised interim intervals, Remarks column (added comments

about Aft lavatory is a customer option) (TR ALI−35).

R 532042F101, revised interim intervals (TR ALI−35 and TR ALI−62).

R 532043F101, revised interim intervals (TR ALI−35 and TR ALI−47).
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Apr 21/2010

REVISION NO. − 5 (Cont’d)

Item Code Changes/Reason

Section 2 (Cont’d)

R 532044F101, revised Task Description (added text “Around Cut−out”), intervals,

Remarks column (TR ALI−53).

N 532044F102, new task added (At Perimeter Fastener Row) (TR ALI−53).

R 532045F101, deleted asterisk on Repeat (for Pre Modsum 4−154506), added

intervals, revised Remarks column (added Pre, Post Modsum 4−154506 information) (TR ALI−31). Revised intervals for Post Modsum 4−154506 (TR

ALI−62).

R 532046F101, revised Task Code from SDI to DVI (TR ALI−47). Revised intervals (TR ALI−53).

R 532047F101, revised Remarks column (added NOTE 1, about shortened inspection intervals).

R 532048F101, revised Remarks column (added NOTE 1).

R 532049F101, revised interim intervals (TR ALI−35 and TR ALI−62). Revised

Remarks column (added NOTE 1).

R 532050F101, revised interim intervals (TR ALI−35 and TR ALI−62). Revised

Remarks column (added NOTE 1).

R 532051F101, revised Remarks column (added comment about restart of

Threshold) (TR ALI−42). Revised intervals (TR ALI−62). Revised Remarks column (added NOTE 1).

R 532052F101, revised Remarks column (added comment about restart of

Threshold) (TR ALI−42). Revised Remarks column (added NOTE 1).

R 532053F101, revised interim intervals (TR ALI−35 and TR ALI−62).

R 532054F101, revised interim intervals (TR ALI−35 and TR ALI−62).

R 532055F101, revised Remarks column (added NOTE 1).

R 532056F101, revised interim intervals (TR ALI−35 and TR ALI−73).

R 532058F101, revised Remarks column (added comment about restart of

Threshold) (TR ALI−42).

R 532059F101, revised Remarks column (added comment about restart of

Threshold) (TR ALI−42). Added intervals, revised Remarks column (added Pre,

Post Modsum information) (TR ALI−53). Revised interval for Post Modsum (TR

ALI−74). Revised intervals (TR ALI−91).
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AIRWORTHINESS LIMITATION ITEMS − PART 2

Apr 21/2010

REVISION NO. − 5 (Cont’d)

Item Code Changes/Reason

Section 2 (Cont’d)

N 532059F102, new task added (SDI of bolts) (TR ALI−91).

R 532060F101, revised interim intervals (TR ALI−35). Revised Remarks column

(added comment about restart of Threshold) (TR ALI−42). Revised intervals (TR

ALI−62).

R 532061F101, revised intervals, Remarks column (added Pre, Post Modsum

4−154763 information) (TR ALI−35). Revised Remarks column (added comment about restart of Threshold) (TR ALI−42). Revised, added intervals (TR

ALI−53). Revised intervals (TR ALI−79).

R 532062F101, revised Task Code from SDI to DVI, revised interim intervals (TR

ALI−35). Revised Remarks column (added comment about restart of Threshold)

(TR ALI−42). Revised intervals (TR ALI−73).

N 532062F102, new task added (SDI of Bolts) (TR ALI−73).

R 532063F101, revised Remarks column (added comment about restart of

Threshold) (TR ALI−35). Added intervals for Post Modsum 4−154355,

4−154507 (TR ALI−47). Deleted entries for Pre Modsum 4−154355 and Post

Modsum 4−154355, revised intervals for Post Modsum 4−154507, revised Remarks column (added comment about restart of Threshold) (TR ALI−62). Revised intervals for Post Modsum 4−154507 (TR ALI−73 and TR ALI−91).

N 532063F102, new task added (TR ALI−62).

R 532064F101, revised interim intervals (TR ALI−35 and TR ALI−53).

N 532065F101, new task added (TR ALI−53).

N 532065F102, new task added (TR ALI−53).

N 532066F101, new task added (TR ALI−53).

N 532066F102, new task added (TR ALI−53). Revised Task Code (added text

“DVI or”, which was accidentally omitted) (TR ALI−84).

N 532066F103, new task added (TR ALI−53).

N 532067F101, new task added (TR ALI−53).

N 532067F102, new task added (TR ALI−53).

N 532067F103, new task added (TR ALI−53).

N 532068F101, new task added (TR ALI−53).
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Apr 21/2010

REVISION NO. − 5 (Cont’d)

Item Code Changes/Reason

Section 2 (Cont’d)

N 532068F102, new task added (TR ALI−53).

N 532069F101, new task added (TR ALI−53).

N 532069F102, new task added (TR ALI−53).

N 532069F103, new task added (TR ALI−53).

N 532070F101, new task added (TR ALI−53).

N 532070F102, new task added (TR ALI−53).

N 532071F101, new task added (TR ALI−53).

N 532072F101, new task added (TR ALI−53).

N 532072F102, new task added (TR ALI−53).

N 532073F101, new task added (TR ALI−53). Revised Remarks column (text is

now “Covered by”, instead of “Transferred to”) (TR ALI−79).

N 532073F102, new task added (TR ALI−53). Revised intervals (TR ALI−73).

R 533001F101, revised interim intervals (TR ALI−35 and TR ALI−62).

R 533002F101, revised interim intervals (TR ALI−35 and TR ALI−62).

R 541001F101, revised Remarks column (added NOTE 1).

R 541002F101, revised Remarks column (added NOTE 1).

R 541003F101, revised Remarks column (added NOTE 1).

R 541004F101, revised Remarks column (added NOTE 1).

R 541005F101, revised Remarks column (added NOTE 1).

R 541006F101, revised Remarks column (added NOTE 1).

R 541007F101, revised Remarks column (added NOTE 1).

R 541008F101, revised Remarks column (added NOTE 1).

R 541009F101, revised Remarks column (added NOTE 1).

R 541010F101, revised Remarks column (added NOTE 1).

R 541011F101, revised Remarks column (added NOTE 1).
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AIRWORTHINESS LIMITATION ITEMS − PART 2

Apr 21/2010

REVISION NO. − 5 (Cont’d)

Item Code Changes/Reason

Section 2 (Cont’d)

R 541012F101, revised Remarks column (added NOTE 1).

R 541013F101, revised Task Code, Task Description (from SDI to DVI), revised

Remarks Column (added comment about restart of Threshold) (TR ALI−85).

Revised Remarks column (added NOTE 1).

R 541014F101, revised Remarks column (added NOTE 1).

R 541015F101, revised Remarks column (added NOTE 1).

R 541016F101, revised Remarks column (added NOTE 1).

R 541017F101, revised Remarks column (added NOTE 1).

R 542001F101, revised Remarks column (added NOTE 1).

R 542002F101, revised Remarks column (added NOTE 1).

R 542003F101, revised Remarks column (added NOTE 1).

R 542004F101, revised Remarks column (added NOTE 1).

R 542005F101, revised Remarks column (added NOTE 1).

R 542006F101, revised Remarks column (added NOTE 1).

R 542007F101, revised Remarks column (added NOTE 1).

R 542008F101, revised Task Description, Remarks column (text is now “Bolt”

instead of “Pin”) (TR ALI−36). Revised Task Code, Task Description (from SDI to

DVI) (TR ALI−85). Revised Remarks column (added NOTE 1).

R 542009F101, revised Remarks column (added NOTE 1).

R 542010F101, revised Remarks column (added NOTE 1).

R 542011F101, revised Remarks column (added NOTE 1).

R 542012F101, revised Task Description (added text “Aft of Sta. XN139”) (TR

ALI−46). Revised Remarks column (added NOTE 1).

R 542013F101, revised Remarks column (added NOTE 1).

R 542014F101, revised Remarks column (added NOTE 1).

R 542015F101, revised Remarks column (added range of aircraft serial numbers)

(TR ALI−46). Revised Remarks column (added NOTE 1).
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AIRWORTHINESS LIMITATION ITEMS − PART 2

Apr 21/2010

REVISION NO. − 5 (Cont’d)

Item Code Changes/Reason

Section 2 (Cont’d)

R 542015F102, revised intervals (TR ALI−36). Revised, added intervals, revised

Remarks column (added Post Modsum 4−11305 information, range of aircraft

serial numbers) (TR ALI−46). Revised Post Modsum intervals (TR ALI−85). Revised Remarks column (added NOTE 1).

R 542015F103, revised Remarks column (added range of aircraft serial numbers)

(TR ALI−46). Revised Remarks column (added NOTE 1).

R 542015F104, revised Remarks column (added range of aircraft serial numbers

for Post Modsum 4−113159) (TR ALI−46). Revised Remarks column (added

NOTE 1).

R 542015F105, revised Remarks column (added range of aircraft serial numbers)

(TR ALI−46). Revised Remarks column (added NOTE 1).

R 542015F106, added intervals for Post Modsum 4−113305, revised Remarks column (moved information for Post Modsum 4−113305 into new entry) (TR

ALI−36). Revised intervals for Post Modsum 4−113305 (TR ALI−46). Revised

intervals for Post Modsum 4−113305 (TR ALI−85). Revised Remarks column

(added NOTE 1).

R 542015F107, revised Remarks column (editorial, is now modsums) (TR

ALI−46). Revised Remarks column (added NOTE 1).

R 542016F101, revised Remarks column (added NOTE 1).

R 542017F101, revised Task Code, Task Description (from SDI to DVI) (TR

ALI−85). Revised Remarks column (added NOTE 1).

R 542018F101, revised Remarks column (added NOTE 1).

R 542018F102, revised Remarks column (added NOTE 1).

R 542018F103, revised Remarks column (added NOTE 1).

R 542018F104, revised Remarks column (added NOTE 1).

R 542018F105, revised Remarks column (added NOTE 1).

R 542018F106, revised Remarks column (added NOTE 1).

R 542018F107, revised Remarks column (added NOTE 1).

R 542019F101, revised intervals (TR ALI−36). Revised Remarks column (added

NOTE 1).
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AIRWORTHINESS LIMITATION ITEMS − PART 2

Apr 21/2010

REVISION NO. − 5 (Cont’d)

Item Code Changes/Reason

Section 2 (Cont’d)

R 542020F101, revised Remarks column (added NOTE 1).

R 542021F101, revised Remarks column (added NOTE 1).

R 542022F101, revised Remarks column (added NOTE 1).

R 542023F101, revised Remarks column (added NOTE 1).

R 542024F101, revised Remarks column (reformatted Modsum information, added aircraft tail numbers, corrected typographic error; was incorrectly shown as

Modsum 4−159139, is now 4−156139) (TR ALI−85). Revised Remarks column

(added NOTE 1).

N 542025F101, new added task (TR ALI−46). Revised Remarks column (added

NOTE 1).

R 553001F101, revised intervals (TR ALI−64).

R 553002F101, revised intervals (TR ALI−64).

R 553004F101, revised interim intervals (TR ALI−44). Revised intervals (TR

ALI−64).

R 553005F101, revised interim intervals (TR ALI−44). Revised intervals (TR

ALI−64).

R 553006F101, revised interim intervals (TR ALI−44). Revised intervals (TR

ALI−64).

R 560001F101, revised Remarks column (text is now “Covered by”, instead of

“Transferred to”) (TR ALI−92).

R 560003F101, revised Remarks column (text is now “Covered by”, instead of

“Transferred to”) (TR ALI−92).

R 571001F101, revised Remarks column (added NOTE 1).

R 571002F101, revised Remarks column (added NOTE 1).

R 571003F101, revised Remarks column (added NOTE 1).

R 571004F101, revised Task Description (added text “Excluding area at Sta.

YW155.2”), added intervals for DVI inspection (internal), revised Remarks column (specified internal or external inspection) (TR ALI−71). Revised Remarks

column (added NOTE 1).

N 571004F102, new task added (for Sta. YW155.2) (TR ALI−71). Revised Remarks column (added NOTE 1).
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AIRWORTHINESS LIMITATION ITEMS − PART 2

Apr 21/2010

REVISION NO. − 5 (Cont’d)

Item Code Changes/Reason

Section 2 (Cont’d)

R 571005F101, revised Remarks column (added NOTE 1).

R 571006F101, revised Remarks column (added NOTE 1).

R 571007F101, revised Remarks column (added NOTE 1).

R 571008F101, revised Remarks column (added NOTE 1).

R 571009F101, revised Remarks column (added NOTE 1).

R 571010F101, revised Remarks column (added NOTE 1).

R 571011F101, revised Remarks column (added NOTE 1).

R 571012F101, revised Remarks column (added NOTE 1).

R 571013F101, revised Remarks column (added NOTE 1).

R 571014F101, revised intervals (TR ALI−65). Revised Task Description (added

text “>(),&-5 +&- $
+8

- 270C %- 270. %*+ * +0 C<= 
	&'
 intervals

(TR ALI−94). Revised Remarks column (added NOTE 1).

N 571014F102, new task added (for 
+&- $
+8

- 270C %- 270. %*+ * +0

C) (TR ALI−94). Revised Remarks column (added NOTE 1).

R 571015F101, revised Remarks column (added NOTE 1).

R 571015F102, revised Remarks column (added NOTE 1).

R 571016F101, revised Remarks column (added NOTE 1).

R 571017F101, revised Remarks column (added NOTE 1).

R 571018F101, revised Remarks column (added NOTE 1).

R 571019F101, revised Remarks column (added NOTE 1).

R 571020F101, revised Remarks column (added NOTE 1).

R 571021F101, revised Remarks column (added NOTE 1).

R 571022F101, revised Remarks column (added NOTE 1).

R 571023F101, revised Remarks column (added NOTE 1).

R 571024F101, revised Remarks column (added NOTE 1).

R 571025F101, revised Remarks column (added NOTE 1).
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AIRWORTHINESS LIMITATION ITEMS − PART 2

Apr 21/2010

REVISION NO. − 5 (Cont’d)

Item Code Changes/Reason

Section 2 (Cont’d)

R 571026F101, revised Remarks column (added NOTE 1).

R 571027F101, revised Remarks column (added NOTE 1).

R 571028F101, revised Remarks column (added NOTE 1).

R 571028F102, revised Remarks column (added NOTE 1).

R 571028F103, revised Remarks column (added NOTE 1).

R 571029F101, revised Remarks column (added NOTE 1).

R 571030F101, revised Remarks column (added aircraft tail numbers) (TR

ALI−94). Revised Remarks column (added NOTE 1).

R 572006F101, revised Repeat interval (TR ALI−65).

R 572007F101, revised intervals (TR ALI−65).

R 575001F101, revised Task Description (added text “Flap and Wing Portions”),

revised intervals (TR ALI−38).

N 575001F102, new task added (for Hollow Pin) (TR ALI−38).

R 575003F101, revised intervals (TR ALI−38).

R 575004F101, revised intervals (TR ALI−38).

R 575005F101, revised Task Title, Task Description (now Track No. 1 only), revised intervals (TR ALI−38).

R 575005F102, revised Task Title, Task Description (now Track No. 2 only), revised intervals (TR ALI−38).

R 575005F103, revised Task Title, Task Description (now Track No. 3 only), revised intervals (TR ALI−38).

N 575005F104, added new task (Track No. 4 only) (TR ALI−38).

N 575005F105, added new task (Track No. 5 only) (TR ALI−38).

R 575011F101, revised Task Code, Task Description (now DVI and SDI), revised 

(decreased) intervals (TR ALI−38).

R 575013F101, revised intervals (TR ALI−38).

R 575014F101, revised intervals (TR ALI−38).
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AIRWORTHINESS LIMITATION ITEMS − PART 2

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REVISION NO. − 5 (Cont’d)

Item Code Changes/Reason

Section 2 (Cont’d)

R 575015F101, revised intervals (TR ALI−38).

R 575016F101, revised intervals (TR ALI−38).

R 575017F101, revised intervals (TR ALI−38).

R 575019F101, revised Task Code (was DVI and SDI, is now DVI or SDI), revised

Task Description (added text “Bottom Skin Only, Between Sta. YW266 and

YW321”), added intervals and revised Remarks column (Pre, Post Modsum

4−113344, 4−113345 information) (TR ALI−38).

R 575019F102, new task added (TR ALI−38).

R 575021F101, revised Task Description (added text “Front spar portion”), revised

intervals, (TR ALI−94).

N 575021F102, new task added (>(),&-5 *-+ '% +&-) (TR ALI−94).

R 575022F101, revised intervals (TR ALI−38).

R 575023F101, revised intervals (TR ALI−38).

R 575024F101, revised intervals (TR ALI−38).

R 576006F101, revised Task Title, Task Description (was LH and RH, is now RH),

(TR ALI−94).

R 712001F101, revised Task Description (added text “excluding Bracket and

HTCS Link Ass’ly”.) (TR ALI−37). Revised Remarks column (deleted statement

“Do in conjunction with engine change”, which is no longer applicable) (TR

ALI−43). Revised Task Code, Task Description (was DVI, is now DVI and SDI)

(TR ALI−77). Revised Remarks column (added NOTE 1).

N 712001F102, new task added, (Bracket only, excluding HTCS Link Ass’ly) (TR

ALI−37). Revised Remarks column (deleted statement “Do in conjunction with

engine change”), added intervals for Pre and Post Modsums and various longeron configurations (TR ALI−43). Revised Task Code, Task Description (was DVI,

is now DVI and SDI), revised Remarks column (deleted text “and Post Modsum”

from each entry) (TR ALI−72). Added intervals, revised Remarks column for

Post Modsum 4−184092 (TR ALI−77). Revised Remarks column (added NOTE

1).

R 712002F101, revised Remarks column (deleted statement “Do in conjunction

with engine change”) (TR ALI−43). Revised Task Code, Task Description (was

DVI, is now DVI or SDI) (TR ALI−72). Added intervals for Pre and Post Modsums

and various longeron configurations (TR ALI−77). Revised Remarks column

(added NOTE 1).
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Apr 21/2010

REVISION NO. − 5 (Cont’d)

Item Code Changes/Reason

Section 2 (Cont’d)

R 712003F101, revised Task Description (added text “excluding Bracket and

HTCS Link Ass’ly.”) (TR ALI−37). Revised Remarks column (deleted statement

“Do in conjunction with engine change”) (TR ALI−43). Revised Task Code, Task

Description (was DVI, is now DVI and SDI), revised Repeat interval (TR ALI−77). 

Revised Remarks column (added NOTE 1).

N 712003F102, new task added, (Bracket only, excluding HTCS Link Ass’ly.) (TR

ALI−37). Revised Remarks column (deleted statement “Do in conjunction with

engine change”, added intervals for Pre and Post Modsums and various longeron configurations (TR ALI−43). Revised Task Code, Task Description (was DVI,

is now DVI or SDI) (TR ALI−72). Revised (corrected) Task Code, Task Description (was erroneously made DVI or SDI, is now DVI), revised intervals, Remarks

column (now show information for Pre, Post Modsum 4−184092 only) (TR

ALI−77). Revised Remarks column (added NOTE 1).

R 712004F101, revised Remarks column (deleted statement “Do in conjunction

with engine change”) (TR ALI−43). Revised Task Code, Task Description (was

DVI, is now DVI or SDI) (TR ALI−72). Added intervals for Pre and Post Modsums

and various longeron configurations (TR ALI−77). Revised Remarks column

(added NOTE 1).

R 712005F101, revised Remarks column (deleted statement “Do in conjunction

with engine change”) (TR ALI−43). Revised Task Code, Task Description (was

DVI, is now DVI or SDI) (TR ALI−72). Added intervals for Pre and Post Modsums

and various longeron configurations (TR ALI−77). Revised Remarks column

(added NOTE 1).

R 712006F101, revised intervals, revised Remarks column (deleted statement

“Do in conjunction with engine change”) (TR ALI−37). Revised Task Code, Task

Description (was DVI, is now DVI or SDI) (TR ALI−72). Revised intervals, Remarks column for various longeron configurations (TR ALI−77). Revised Remarks column (added NOTE 1).

N 712007F101, new task added, (inspection of HTCS Link Assembly) (TR

ALI−37). Revised intervals, Remarks column for various longeron configurations (TR ALI−77). Revised Remarks column (added NOTE 1).
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AIRWORTHINESS LIMITATION ITEMS − PART 2

Apr 21/2010

REVISION NO. − 5 (Cont’d)

Item Code Changes/Reason

Section 3 Safe Life Components

3−1 Systems Safe Life

R Incorporated TR ALI−27 (deleted the Uplock Assembly, Steering Manifold Assembly, Nosewheel Steering Gearbox and Nosewheel Steering Hydraulic Motor

−these item were incorrectly identified as Safe Life items).

R Incorporated TR ALI−39 (added a new NOTE on p. 3).

R Incorporated TR ALI−83 (revised the information for the Retraction Actuator,

added entries for the Retraction Actuator Assembly Rod End and Retraction Actuator Assembly Piston, added a NOTE about phase−in−time for the Rod End,

revised the information (description, Part Number and Discard Time) for the Lock

Actuator Assembly (was previously shown as the Lock Actuator Cylinder Assembly) and added an entry to the NOTES).

R Incorporated TR ALI−86 (revised the Part Number for the Retraction Actuator

Assembly Piston (corrected typographic error, was erroneously shown as

46507−5, is now 46570−5)).

R Incorporated TR ALI−88 (added an entry (46600−7) to the Lock Actuator Assembly).

R Incorporated TR ALI−89 (re−introduced information (Item, Part Number and Discard Time) for the Lock Actuator Cylinder Assembly and revised the information

(Item description and Discard Times) for the Lock Actuator Assembly).

R Incorporated TR ALI−95 (Removed the NOTE (about rod ends) that was previously shown at the bottom of page 2 (this note is no longer required), revised

the information (Item, Part Number and Discard Time) for the Door Actuator Assembly Rod End (was previously shown as the Door Actuator Assembly) and

added an entry to the NOTES.

R Incorporated TR ALI−96 (revised the information (added 46600−9, 46600−11 to

Item description) for the Lock Actuator Cylinder Assembly, added two Part Number entries (46600−9, 46600−11) to the Lock Actuator Assembly).

3−2 Structural Safe Life

R Incorporated TR ALI−28, TR ALI−40, TR ALI−45, TR ALI−50 (these TRs 
	&'


%+ -,#$
 &-*#%+&- %- &'(% +&#
' * %)#'+ %)) * +6
 &+
#'=0

R Incorporated TR ALI−57 (revised the Detail Part Number column for the A Frame

(Drag Strut Attachment), Post modsum 4−113305).
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REVISION NO. − 5 (Cont’d)

Item Code Changes/Reason

Section 3 (Cont’d)

R Incorporated TR ALI−80 (revised the information in the Discard Time column for

most of the items, updated the information for the Main Landing Gear, Upper

Bearing (P/N 46114−1, also added entry for new P/N 46114−3 & sub.) and revised the NOTES).

R Incorporated TR ALI−82 (updated the NOTES (re−introduced an item (7) which

was accidentally omitted when TR ALI−80 was issued)).

Section 4 Fuel System Limitations

N 4−0, new section added (TR ALI−59 and TR ALI−66).

N 4−1, new section added (TR ALI−60, TR ALI−67, TR ALI−69, TR ALI−75).

Section 5 Critical Design Configuration Control List

N 5−0, new section added (TR ALI−55).

N 5−1, new section added (TR ALI−56, TR ALI−76). Corrected minor format error

(re−introduced header on p. 2 which was accidentally omitted when TR ALI−76

was issued). To accommodate this, the information for Fuel tank plumbing lines

and APU fuel tank plumbing lines was split into two separate entries (editorial

change).
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AIRWORTHINESS LIMITATION ITEMS − PART 2

Apr 21/2010

DEPARTMENT OF TRANSPORT

AIRWORTHINESS LIMITATIONS

The tasks, intervals and retirement lives specified in Part 2 of this document are Airworthiness Limitations. Compliance with these limitations is required to ensure continuing compliance with the airworthiness standards of the Dash 8 Series 400 (DHC−8) basis of Type Approval/Type Certificate.

Date:

Chief, Engineering

Aircraft Certification Branch

Transport Canada

Signed:

4 Nov 1999
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AIRWORTHINESS LIMITATION ITEMS − PART 2

Apr 21/2010

TABLE OF CONTENTS

Chapter

Section

Subject Subject Page

AIRWORTHINESS LIMITATIONS INTRODUCTION Introduction 1

Purpose

Scope

Rules Applicable to the Airworthiness Limitations Items

Specific Structural Inspections 3

CERTIFICATION MAINTENANCE REQUIREMENTS 1−0 1

Page Format Description

Air Conditioning 1−21 1, 2

Auto Flight 1−22 1

Communications 1−23 1

Electrical Power 1−24 1

Fire Protection 1−26 1

Flight Controls 1−27 1, 2

Fuel 1−28 1

Hydraulic Power 1−29 1

Ice and Rain Protection 1−30 1

Indicating/Recording 1−31 1

Landing Gear 1−32 1

Navigation 1−34 1

Bleed Air 1−36 1

Doors 1−52 1

Propellers 1−61 1

STRUCTURAL MAINTENANCE PROGRAM 2−0 1

Introduction

Program Concept

Inspection Techniques

Rules Applicable to the Structural Maintenance Program 2

Notes Referred to in the Structural Maintenance Program

Page Format Description 3

Program Application 4

Operator’s Option 5

Doors 2−52 1 to 4

Fuselage 2−53 1 to 23

Nacelle 2−54 1 to 11

Stabilizers 2−55 1 to 5

Windows 2−56 1

Wings 2−57 1 to 15

Powerplant 2−71 1 to 6

SAFE LIFE COMPONENTS 3−0 1

SYSTEMS SAFE LIFE COMPONENTS (Series 400) 3−1 1

Flight Controls
PSM 1−84−7 DOT APPROVED

MAINTENANCE REQUIREMENTS MANUAL

AIRWORTHINESS LIMITATION ITEMS

	

CONTENTS Page 2

AIRWORTHINESS LIMITATION ITEMS − PART 2

Apr 21/2010

Chapter

Section

Subject Subject Page

SYSTEMS SAFE LIFE COMPONENTS (Series 400) (Cont’d)

Hydraulics

Main Landing Gear

Nose Landing Gear 2

Retraction Control System

Doors

Notes for Series 400 (Systems)

STRUCTURAL SAFE LIFE COMPONENTS (Series 400) 3−2 1

Nacelle

Wing

Fuselage 2

Main Landing Gear

Nose Landing Gear

Notes for Series 400 (Structural) 3

FUEL SYSTEM LIMITATIONS 4−0 1

Introduction

Rules Applicable to Fuel System Limitations

Page Format Description

FUEL SYSTEM LIMITATIONS 4−1 1 to 3

CRITICAL DESIGN CONFIGURATION CONTROL 5−0 1

LIMITATIONS

Introduction

Rules Applicable to Critical Design Configuration Control Limitations

Page Format Description

CRITICAL DESIGN CONFIGURATION CONTROL 5−1 1 to 7

LIMITATIONS