What was found
FIRST OFFICER'S OXYGEN MASK EMERGENCY PRESSURE SELECTOR WILL NOT TEST - NO AIR FLOW. MAINTENANCE ADJUSTED MASK IN BOX. PRESS-TO-TEST WORKS NORMAL WITH AIRFLOW AND TEST INDICATION FUNCTIONS NORMAL.
- Difficulty date
- August 9, 2012
- Submitted
- August 13, 2012
- Operation
- Air carrier
- Aircraft
- N552UW
- Make and model
- Airbus A321231
- Aircraft serial
- 4957
- Aircraft time
- 2,597 hours, 865 cycles
- System (JASC)
- 3510 · Crew Oxygen System
- Part
- Oxygen Mask
- Part number
- MF20534
- Condition
- Out Of Adjust
- Location
- Cockpit
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.