Service difficulty report · Oxygen System · Boeing 777222

Difficulty date
February 24, 2007
Submitted
March 6, 2007
Operation
Air carrier
Aircraft
N774UA
Make and model
Boeing 777222
Aircraft serial
26936
Aircraft time
44,642 hours, 9,202 cycles
Engine
Pwa PW4077
Part
Oxygen System
Condition
Reads Low
Location
Crew
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

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

What was found

CREW OXYGEN PRESSURE AT ZERO. FOUND LEAKING OXYGEN PRESSURE TRANSDUCER. REPLACED X-DUCER. SERVICED CREW OXYGEN. CHECKED SYSTEM AND FOUND NO LEAKS. SUSPECT LEAKING AT TRANSDUCER CAUSED BY SEAL LEAKAGE.