What was found
1ST OBS O2 MASK INOP CAUSING FEEDBACK(<P>R/R 1ST OBSERVER'S O2 MASK IAW AMM 35-11-51. OPS CHECKS GOOD</P>)
- Difficulty date
- March 20, 2026
- Submitted
- March 24, 2026
- Operation
- Air carrier
- Aircraft
- N641GT
- Make and model
- Boeing 76738E
- Aircraft serial
- 25132
- Aircraft time
- 98,822 hours, 27,450 cycles
- System (JASC)
- 3510 · Crew Oxygen System
- Part
- Oxygen Mask
- Part number
- MC1025104
- Part serial
- SE11663
- Condition
- Inoperative
- Location
- Zone 200
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- L
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.