- Difficulty date
- June 11, 2026
- Submitted
- June 16, 2026
- Operation
- Air carrier
- Make and model
- Boeing 777F16
- Aircraft serial
- 38091
- Aircraft time
- 61,653 hours, 10,121 cycles
- Part
- Button
- Condition
- Inoperative
- Location
- Oxygen Mask
- Stage of operation
- TX
- How discovered
- O
- 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
1ST OBS O2 MASK RESET BUTTON INOPERATIVE. SWAPPED 1ST OBS O2 MASK & STOWAGE BOX WITH 2ND OBS O2 MASK & STOWAGE BOX PER AMM 35-11-19 & IPC 35-11-18-01. OPS & LEAK CHKD OK. R & R 2ND OBS O2 MASK BOX ASSY IAW AMM 35-11-18 REV 107 & IPC 35-11-18-01 REV 24. LEAK & OPS CHKD OK.