# SDR SCNA99002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 10, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N151SY](https://openairdocs.org/aircraft/N151SY), registered now
- Make and model: Doug DC-10-15
- Registry model: [Doug DC-10-15](https://openairdocs.org/model/mcdonnell-douglas-dc-10-15) (OpenAirDocs)
- Aircraft serial: 48295
- System (JASC): [3520 · Passenger Oxygen System](https://openairdocs.org/jasc/3520)
- Part: Wire
- Condition: Pinched
- Location: Row 6abc & 7abc
- Stage of operation: CR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SCNA99002

## Discrepancy

DURING FLIGHT, THE OXYGEN MASKS IN THE FORWARD CABIN EJECTED.  TROUBLESHOT PROBLEM TO BE A PINCHED MUX SYSTEM CABLE AT SEAT ROWS 6ABC AND 7ABC.  REPLACED THE MUX CABLE AND RESET ALL OXYGEN MASKS THAT DROPPED.  PERFORMED OXYGEN DROP TEST PER MM 35-20-00.  PASSENGER OXYGEN SYSTEM OPERATIONALLY TEST NORMAL.

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