What was found
SECOND OBSERVER OXYGEN MASK FAILED PREFLIGHT CHECK. THE FLOW INDICATOR SHOWED RED DURING TEST. REPLACED SECOND OBSERVER`S OXYGEN MASK, OP CHECKED NORMAL IAW 35-12-000-4.
- Difficulty date
- September 20, 2012
- Submitted
- September 20, 2012
- Operation
- Air carrier
- Aircraft
- N257FE
- Make and model
- Boeing 727233
- Aircraft serial
- 20939
- Aircraft time
- 59,104 hours, 37,831 cycles
- System (JASC)
- 3510 · Crew Oxygen System
- Part
- Oxygen Mask
- Condition
- Failed
- Location
- Second Observer
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- L
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.