TM55-2840-251-23
Section VII TROUBLESHOOTING (Continued)
D.
FLUCTUATIONS (Cont)
1-69
TORQUE AND Nf
E.
1-70 SPECIFIC SYMPTOMS
NOTE
SYMPTOMS
OF
AIR
SEAL
FAILURES
ARE
EXCESSIVE
OIL
CONSUMPTION,
SMOKING
STARTS AND EXCESSIVE VIBRATION LEVEL, BUT
THESE SYMPTOMS ARE ALSO INDICATIVE OF:
1.
OIL LEVEL MAINTAINED TOO HIGH.
2.
BLOCKAGE
IN
ENGINE
SCAVENGE
OR
BREATHER SYSTEM.
THE ABOVE CONDITIONS SHOULD BE CHECKED
BEFORE SUSPECTING AIR SEAL PROBLEMS.
END OF SECTION
1-77/(1-78 blank)
