# SDR SCNA99503

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 9, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N154SY](https://openairdocs.org/aircraft/N154SY), 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: 48259
- System (JASC): [3520 · Passenger Oxygen System](https://openairdocs.org/jasc/3520)
- Part: Switch
- Condition: Failed
- Location: Cabin Oxygen Sys
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SCNA99503

## Discrepancy

DURING A HEAVY MAINTENANCE CHECK, 2 ANEROID SWITCHES FOR THE PASSENGER OXYGEN SYSTEM FAILED TEST FOR SCA WORK CARD X1036.  THE SUBJECT ANEROID SWITCHES 2 WERE REMOVED AND REPLACED PER MM 352102, OPERATION CHECK WAS GOOD.

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