Piper Navajo PA-31 Service Manual page 101

PIPER NAVAJO SERVICE MANUAL
TABLE III-I. INSPECTION REPORT
Nature of Inspection
Inspection time (hrs)
F. WING AND NACELLE GROUP (Refer to Notes 18 and 30.)
L R
50 100 500 1000
0 0 0
1. Remove inspection plates and panel ....................................
2. Inspect visible internal structure for loose rivets, cracks or other signs of
stress or dam age ..................................................................
............ ....... .... .
3. Inspect surfaces, skins, and tips for damage and loose rivets ............................
4. If installed, inspect nacelle baggage door for cracks, damage and security........
5. If installed, check security of flux detector and compensator and related har-
nesses for proper and secure connections. (Refer to Note 36.) ..........................
6. Inspect ailerons and tab hinges and attachments ...............................................
7. Inspect aileron and trim cables, pulleys, and bellcranks for damage and opera-
tion (Refer to Airworthiness Directive No. 92-27-05. See Note 26.) ..........
8. Inspect aileron balance weight and arm for security and condition ....................
9. Remove aileron and inspect area beneath inboard hinge on aileron spar for
cracks. (Refer to latest revision of Piper Service Bulletin No. 974.) ...............
10. Replace inboard aileron hinge. Refer to latest revision of Piper Service
Bulletin No. 974.) ........................................ ..............................
O O
11. Inspect wing flaps and attachments for damage and operation per Section III.
(Refer to latest revision of Piper Service Bulletin 647 and see Note 31.) ..........
12. Inspect wing flap transmission per the Service Manual, Section III. (See Note
3 1 .) ......................................................................................................................
13. Inspect flap actuator cable per the Service Manual, Section III. (See Notes 26
and 31.) ................................................................................................................ O O
14. Inspect flap actuator motor per the Service Manual, Section III. (See Note
31.) .....................................................................................................................
15. Inspect condition of bolts used with flap and aileron hinges. Replace as
required .............................................................................................................
16. Inspect condition of all exterior bearings............................................................
17. Lubricate per lubrication chart. (Refer to Service Manual, Section II.) ............
18. Inspect wing attachment bolts and brackets........................................................
19. Inspect engine mount attaching structure............................................................
20. Inspect engine exhaust shield for cracks, severe buckling, or loose rivets at
the flange area. (See Note 32.)...........................................................................
21. Remove, drain, and clean fuel filter bowl and screen. (Drain and clean at
least every 90 days.)............................................................................................
22. Inspect fuel cells and lines for leaks and water .......................................
NOTE:
Drain both main fuel cells to perform next three steps.
23. Check tension and knots of nylon support cords. .......................................
24. Inspect security of baffles and free operation of flapper valve in each main
fuel cell................................................................................................................
25. Inspect condition of fuel cell material. (See Notes 33 and 34.).........................
26. Fuel cells marked for capacity. ..........................................................................
27. Fuel cells marked for minimum octane rating. ..................................................
28. Inspect fuel cell vents. (See Note 35.) ...............................................................
Revised: 2/18/94
Interim Revision: 12/02/94
INSPECTION
1E5