OIL CAPACITY AND CONSUMPTION INFORMATION

NAVAIR 17-15-50.3

TM 38-301-3

T.O. 33-1-37-3

CGTO 33-1-37-3

ENGINE:

TF39-GE-1C (Cont)

AIRCRAFT:

(C-5)

Lube and scavenge pump cover

No. 3 main bearing cages

Nos. 2, 4, 5, 6 and 7 main bearing cages

Inlet and transfer gearbox cages

Lube and scavenge pump bearings

Transfer gearbox housing

No. 2 main bearing fan frame

No. 1 main bearing fan stub shaft and rotating air and oil seal

No. 3 main bearing stage two-rotor disc (rotating oil seal)

No. 5 main bearing HP turbine rear shaft (rotating oil seal)

NOTE

Comparison of teardown findings with wear metal histories has shown that Fe wear

metal increase rates of 1 ppm per operating hour appear to be normal and may be

associated with gradual wear of the inlet gearbox splined adapter. Wear metal

increase rates of 2 to 2-1/2 ppm per operating hour appear to be abnormal and may

be associated with more severe gearbox or engine bearing problems. High Ti and

Fe may be caused by cracked and spinning No. 3 bearing inner race.

OIL CAPACITY AND CONSUMPTION INFORMATION

1. Oil capacity of engine: 9.1 gallons (at full mark on dipstick).

2. Allowable oil consumption rate: Reference T.O. 1C-5A-2-4, Table 3.1:

Home station: 2 pints per hour maximum

Enroute:

4 pints per hour maximum

3. Oil consumption inspection interval: Ref. T.O. 1C-5A-2-4, Table 3.1, as needed.

4. Actions to take if maximum allowable oil consumption is exceeded:

Ref T.O. 1C-5A-2-4, Table 3.1

Correct fault or replace engine

A64