SDR 9719006716

Service difficulty report · Breather Tube · Boeing 747251F

Difficulty date
October 9, 1997
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N616US
Make and model
Boeing 747251F
Aircraft serial
21120
Engine
Pwa JT9D7J
Part
Breather Tube
Condition
Leaking
Location
Nr 4 Engine
Stage of operation
CR
Nature of condition
K
Precautionary procedure
A, E

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

DURING CRUISE, THE OIL QUANTITY INDICATED FOR THE NR 4 ENGINE DROPPED TO ZERO. THE ENGINE WAS SHUT DOWN AND THE FLIGHT DIVERTED TO MNL. MAINTENANCE FOUND THE UPPER RIGHT MAIN ENGINE BREATHER TUBE LEAKING. THE TUBE WAS REPLACED AND NO LEAKS WERE NOTED DURING ENGINE RUN.