What was found
DURING MX PREFLIGHT, CAPTAINS O2 MASK FAILED A PRESS TO TEST. PREMATURE REMOVAL/INSTALLATION. REPLACED CAPT'S FULL FACE O2 MASK IAW AMM 35-11-51-4-99. OPS & LEAK CHKD GOOD. ACFT OK FOR SERVICE.
- Difficulty date
- August 21, 2026
- Submitted
- August 24, 2026
- Operation
- Air carrier
- Aircraft
- N928FD
- Make and model
- Boeing 75728A
- Aircraft serial
- 24369
- Aircraft time
- 101,967 hours, 34,250 cycles
- System (JASC)
- 3510 · Crew Oxygen System
- Part
- Oxygen Mask
- Part number
- MF20108
- Part serial
- 79402
- Condition
- No Test
- Location
- Zone 200
- Stage of operation
- IN
- How discovered
- C
- Nature of condition
- L
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.