# SDR UIEA2011100300549

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 19, 2011
- Submitted: October 4, 2011
- Operation: Air carrier
- Aircraft: [N464MC](https://openairdocs.org/aircraft/N464MC), registered now
- Make and model: Boeing 747446
- Aircraft serial: 25308
- Aircraft time: 79,246 hours, 14,640 cycles
- System (JASC): [3520 · Passenger Oxygen System](https://openairdocs.org/jasc/3520)
- Part: Module
- Part number: 417U30813241
- Part serial: SB74735A2098
- Condition: Failed
- Location: Oxygen System
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2011100300549

## Discrepancy

DOOR NR 5 OVERHEAD CREW REST FWD UPPER BUNK OXYGEN MODULE DROP TEST FAILED.  OXYGEN MODULE REPLACED AND DROP TESTED NORMAL IAW AMM 35-21-36 AND 35-21-00.

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