What was found
THE CAPTAINS O2 MASK HARNESS SECURING HOSE HAS AIR LEAK. SWAPPED O2 MASK WITH 1ST OBSERVERS SEAT. 1ST OBSERVERS SEAT INOPERATIVE IAW MEL. CAPTAIN'S MASK OPERATION CHECKED. PN 649-0148, REPLACED 1ST OBSERVERS MASK ASSEMBLY.
- Difficulty date
- August 26, 2013
- Submitted
- August 27, 2013
- Operation
- Air carrier
- Aircraft
- N550UA
- Make and model
- Boeing 757222
- Aircraft serial
- 25398
- Aircraft time
- 81,892 hours, 23,667 cycles
- Engine
- Pwa PW2037
- System (JASC)
- 3510 · Crew Oxygen System
- Part
- Oxygen Mask
- Part number
- MC1019151
- Part serial
- 451
- Condition
- Leaking
- Location
- Cockpit
- 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.