TM 55-2840-254-23
4-43
INSPECT NO. 4 AND 5 BEARING OIL TUBES (AVIM)
4-43
INITIAL SETUP
Applicable Configurations:
All
Tools:
Technical Inspection Tool Kit,
NSN 5180-00-323-5114
Materials:
None
Personnel Required:
68B30 Aircraft Powerplant Inspector
Equipment Condition:
Off Engine Task
1. Inspect No. 4 and 5 bearing oil tubes (1 and 2)
as follows:
a. There shall be no cracks.
b. There shall be no nicks, dents or rub wear
greater than 0.040 inch depth on oil tube
sleeves (3).
c. There shall be no nicks, dents or rub wear
greater than 0.030 inch depth on oil tubes
(1 and 2).
2. Inspect adapters (4 and 5) as follows:
a. There shall be no cracks.
b. There shall be no nicks, dents or rub wear
greater than 0.050 inch depth on adapter
squared ends (6).
c. There shall be no nicks, dents or rub wear
greater than 0.020 inch depth on adapter
tube areas (7).
FOLLOW-ON MAINTENANCE.
None
END OF TASK
4-250
