Service difficulty report · Oxygen Mask · Boeing 757222

Difficulty date
November 17, 2011
Submitted
November 18, 2011
Operation
Air carrier
Aircraft
N528UA
Make and model
Boeing 757222
Aircraft serial
25018
Aircraft time
68,260 hours, 25,354 cycles
Engine
Pwa PW2037
Part
Oxygen Mask
Part number
MC1019151
Part serial
619
Condition
Defective
Location
O2 System
Stage of operation
IN
How discovered
V
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 REPORT: O2 DEPLETES APPROX 10 PSI-SEC WHEN CAPTS MASK IS TESTED. REPLACED CAPTAIN'S OXYGEN MASK, OPS CHECKS GOOD.