Chapter 

### Sectio n Subject List of Effective Pages Table of Contents 

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# PC-6 MAINTENANCE MANUAL CHAPTER 04- AIRWORTHINESS LIMITATIONS LIST OF EFFECTIVE PAGES Pages Date 1 Ju l 31/12 2 Jul 31/12 1 Feb 28/10 2 Feb 28110 1 Jul31/12 2 Jul31/12 3 Jul31112 

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### 6 Jul 31/12



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# PC-6 MAINTENANCE MANUAL CHAPTER 04- AIRWORTHINESS LIMITATIONS TABLE OF CONTENTS Chapte r 

### Section Subj ect AIRWORTHINESS LIMITATIONS 

### 04-00-00 General Mandatory Structural Inspections Life Limited Items



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AIRWORTHINES S LIMITATIONS

The Airworthiness Limitations section is EASA approved and variations must also 

### be approved . The Airworthiness limitations section is also FAA approved for US registered aircraft in acco rdance with FAR 21 .29 . The Airworthiness Limitations section is FAA approved and specifies maintenance required under 14 CFR 43.16 and 91.403 unless an alternate program has been FAA approved . On any PC -6, do not install the following parts : Mechanical stabilizer trim system : Connecting p i eces 6232 .0026.XX manufactured by Fai r child . The Fairchild part has a rivet in the center that is not on the Pilatus part (refer also to SB 53-001. Rev. 1 ) . Electrical stab i lizer trim system : Fitti ng 116.40.06.033 without index after part number (refer also to SB 53-001, Rev. 1 ) . 2 . Mandatory Structural Inspections Item Chapte r 27 - Flight Controls Aileron, Rudder, Elevator and Flap Bellcranks and Levers Aileron Trim Screw-Actuator (Mechanical System) Chapter 53 • Fuselage Stabilizer Trim Attachment Components, FR12A FR12A Fuselage- Wing-Strut Attachment-Brackets Chapter 55 - S1abilizers Trim Actuator Attachment

EFFECTIVI TY: All Maintenance Requirement Interval Examine 7000 flying hours or 14 years (Non Destructive Inspection , (whichever comes first) see NOTES F and G below) Check for backlash . The 3500 flying hours or 7 years maximum permitted (whichever comes first) backlas h is 0.3 mm (0 .012 in.) Examine 3500 fly i ng hours or 7 years (Ref. 53-30-00 . Page Block (whichever comes first) 601) See NOTE C below Examine 3500 flyi ng hours or 7 years (Ref . 53-30-00 . Page Block (whichever comes first) 601) See NOTE C below Examine 3500 flying hours or 7 years (Non Destructive I nspection, (whichever comes first) see NOTES F and G below) Examine 3500 fly i ng hours or 7 years (Ref. 55-11-11, Page Block (whichever comes first) 601) See NOTE C below 

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# PC-6 M AI N TE NANC E MANU AL Item Mai nte n ance Requirement I nterval Chapte r 57 - Wi n gs Left and Right Wing-Strut Fitting (All PINs) Examine Aircraft reg iste red in the USA: (Ref. 57-00-02 , Page B lock 3 months 601 - Check 1 - Visual Inspection) All other aircraft (not operating in the USA): 3 months (See NOTE 1) 6 months (See NOTE 2) 12 months (See NOTE 3) N OTE 1 : For aircraft that operate in a severe Corrosion Severity Zone (Ref. AMM , 20- 40-00, Page Block 1 ) N OT E 2: For aircraft that operate in a moderate Corrosion Severity Zone (Ref. AMM , 20- 40-00, Page Block 1 ) NOTE 3: For aircraft that operate in a mild Corros ion Severity Zone (Ref. AMM, 20- 40-00, Page Block 1) See NOTE D below Left Wing - Strut Fitting (PIN 6102 .0041 .00, Examine 1100 flying hours 111.35.06. 055,111.35 .06.184 or (Ref. 57-00 -02 , Page Block or 12 months (whichever comes 111 .35 .06 . 185) 601 - Cheek 2- Eddy Current first) Inspection , see NOTE G See NOTE D below below) Right Wing -Strut Fitting (PIN 6102 .0041.00, Examine 1100 fly i ng hours 111 . 35 . 06 .056, 111 . 35 . 06.184 or (Ref . 57-00-02, Page Block or 12 months (whichever comes 111.35.06. 186) 601 - Cheek 2- Eddy Current first) Inspection. see NOTE G See NOTE D below below) Left Wing-Strut Fitting (PIN 111.35.06.193 Examine 12 months or 111 .35 .06.195} (Ref. 57-00-02 . Page Block See NOTE D below 601 - Cheek 2- Eddy Current Inspection , see NOTE G below) Right Wing -Strut Fitting (PIN 111 . 35 .06.194 Examine 12 months or 111 .35 .06.195) (Ref. 57-00-02, Page BloCk See NOTE D below 601 - Check 2 - Eddy Current Inspection, see NOTE G below)

E F FECT IV ITY: All 

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# PC-6 MAINTENANCE MANUAL Item Mai nten ance Requ i rement Interv a l Wing- Fuselage Attachments Examine 

### 7000 flying hours or 

### 14 years (Non Destructive I nspection , (whichever comes first) see NOTES F and G below) Aileron/Flap Support- Brackets Examine 

### 7000 flying hours or 

### 14 years (Ref. 

### 57-26-01 , Page Block (whichever comes first) 

### 601 - Non Destructive Inspection, see NOTES F and G below)

N OTE 

### A : Refer to the appropriate engine and propeller maintenance manuals for the appl icabl e airworthiness limitations . N OTE 

### 8 : If any of t he above maintenance tasks were accomplished in accorda n ce with an earlier revision of th is AMM , the relevant interval starts from that date. except for items with NOTES C or D . N OTE C : If the maintenance requirement of this task was accomplished as part of SB 

### 53-001 or superordinate ADs, the interval starts from that date . NOT E 0 : If the maintenance requiremen t of th is task was accomplished as part of SB 

### 57-005 or superordinate ADs, the interval starts from that date . NOTE E : Any maintenance task listed above for which NOTES B . C or D do not apply must be accomplished withi n 

### 12 months from the effective date of t h is revision . NOTE F : You can do a Fluorescent Dye Penetrant Inspection or an Eddy Current I nspection . NO T E G: Only persons qualified and certified to NDT Level II (or higher) National Aerospace Standard NAS 

### 410, European Standard EN 

### 4179, or any other equivalent standards. shall do an Eddy Current Inspection . Pilatus reco mmend that persons qualified and certified to NDT Level II (or higher) National Aerospace Standard NAS 

### 410, European Standard EN 

### 4179, or any other equ ivalent standards , do a Fl uorescent Dye Penetrant Inspection .

EF FECTIVI TY: All 

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# PC-6 MAINTENANCE MANUA L 3. Life Limi ted Items Item Chapter 

### 27 - Fli gh t Control s Flight Control Chains (Mechanical Trim and Flaps) Aileron Attachment Bolts Elevator Attachment Bolts Rudder Attachment Bolts Flap Attachment Bolts Horizontal-Stabilizer Attachment-Bolts Stabilizer Trim Actuator (Mechanical Trim) Stabilizer Trim Actuator (Electrical Trim) Flap Actuator (Electrical System) All models except PINs 

### 978 .73 . 14. 101 and 

### 978.73.14.103 (listed below) Flap Actuator (Electrical System) (Electro-Metal Type 

### 55 . 1-1100, PIN 

### 978.73. 14 . 101) Flap Actuator (Electrical System) (Electro-Metal Type 

### 55 . 1- 1100, Arndt. 

### 2 PIN 978.73 . 14 . 1 03) Flap Actuator Jacks (Mechanical System) Chapter 

### 32 - Landing Gear Main-Gear Shock-Strut Attachment-Bolts T

a il-Gear Attachment-Bolts

EFFECTIVI TY: A ll Maintenance Requirement Interval Rep l ace (disca rd) 

### 7000 flying hours or 

### 14 years (which ever comes first) Replace (discard) 

### 7000 flying hours or 

### 14 years (whichever comes first) Replace (discard) 

### 7000 flying hours or 

### 14 years (whichever comes first) Replace (discard) 

### 7000 flying hours or 

### 14 years (whichever comes first) Replace (discard) 

### 7000 flying ho u rs or 

### 14 years (whichever comes first) Replace (discard) 

### 7000 flying hours or 

### 14 years (whichever comes first) Overhaul 

### 3500 flying hours Overhaul 

### 3500 flying hours Overhaul 

### 3500 fly i ng hours or

### 7 years (whichever comes first) Overhaul 

### 3000 l andings Overhaul 

### 5000 l andings or 

### 7 years (whichever comes first) Overhaul 

### 3500 flying hours Replace (discard) 

### 10000 landings or 

### 7 years (whichever comes first) Replace (discard) 

### 10000 landings or 

### 7 years (whichever comes first) 

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### It e m Chapter 35 - Oxyg e n Oxygen Cylinder (if installed ) Chapte r 57 - Wing s Wing Attachment Bolts Wing-Strut Attachment-Bolts Chapter 77 - Engin e I ndicati ng Low P itch Warning-Switch 

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# PC-6 MAINTENANCE MANUAL Ma inte nance Requirement Overhaul and send to an authorized facility for hydrostatic test Replace (discard) Replace (d iscard)

Replace (discard)

Approved 

### by: Carl Thomas EUROPEAN AV IATION SAFElY AGENCY (EASA) EASA Approval No: 10040713 Approva l Signature : Signed original held on file at Pilatus Aircraft Ltd . Stans Approval Date : 25th July 2012

EFFECTIVI lY: All Interval 5 years

7000 flying hours or 14 years (whichever comes fi r

st) 7000 flying hours or 14 years (whichever comes first} 3500 fly i ng hours



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