Service difficulty report · Oxygen System · Boeing 747422

Difficulty date
August 3, 2007
Submitted
August 7, 2007
Operation
Air carrier
Aircraft
N195UA
Make and model
Boeing 747422
Aircraft serial
26899
Aircraft time
41,316 hours, 5,124 cycles
Engine
Pwa PW4056
Part
Oxygen System
Condition
Faulty
Location
Cockpit
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
O

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

What was found

OXY MASK STOWAGE COMPT DEFECTIVE - 1ST OFFICER. CREW COMMENTS: TEST - RESET SWITCH DOES NOT RESET COM OR AIR ON F/O O2 COMPARTMENT. 08-31-07 REPLACED F-O'S O2 STOWAGE BOX AND CLEANED MASK AT EMERGENCY FLOW KNOB. OPS CHKS GOOD. CREW O2 BOTTLE CLOSED DURING REPLACEMENT, REOPENED AND SAFETY WIRED AFTER COMPLETION. CHKS READY FOR SERVICE.