What was found
CAPT'S O2 MASK FAILS PREFLIGHT CHECK IN 100% MODE. MASK WILL NOT PRSSURIZE. REMOVED AND REPLACED CAPT'S O2 MASK BOX. LEAK AND OPS CHECKED GOOD.
- Difficulty date
- July 13, 2023
- Submitted
- July 17, 2023
- Operation
- Air carrier
- Aircraft
- N810FX
- Make and model
- Aerosp ATR72
- Aircraft time
- 34,043 hours, 33,886 cycles
- System (JASC)
- 3510 · Crew Oxygen System
- Part
- Unknown
- Part number
- UNKNOWN
- Condition
- Unknown
- Location
- Unknown
- Stage of operation
- UK
- 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.