Service difficulty report · Oxygen System · Boeing 747422

Difficulty date
July 6, 2011
Submitted
July 21, 2011
Operation
Air carrier
Aircraft
N174UA
Make and model
Boeing 747422
Aircraft serial
24381
Aircraft time
83,928 hours, 9,410 cycles
Engine
Pwa PW4056
Part
Oxygen System
Part number
89151114
Condition
Low
Location
Crew O2
Stage of operation
IN
How discovered
O
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

OXYGEN PSI DROP. SERVICED CREW O2.