# SDR DLM11002039

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 10, 2000
- Submitted: October 18, 2000
- Operation: Air carrier
- Aircraft: N812DE
- Make and model: Doug MD-11
- Registry model: [Doug MD-11](https://openairdocs.org/model/mcdonnell-douglas-md-11) (OpenAirDocs)
- Aircraft serial: 48601
- Aircraft time: 22,854 hours, 3,013 cycles
- System (JASC): [3520 · Passenger Oxygen System](https://openairdocs.org/jasc/3520)
- Part: Relay
- Condition: Failed
- Location: Oxygen Mask
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DLM11002039

## Discrepancy

DURING POWER TRANSFER CREW REPORTED A UNCOMMANDED DEPLOYMENT OF THE PASSENGER OXYGEN MASKS.  MTC CHECKED SYSTEM VIA M/M AND REPLACED RELAYS R2-253 AND R2-106.

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