# SDR MWEA97786

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 19, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N400ME](https://openairdocs.org/aircraft/N400ME), registered now
- Make and model: Doug DC-9-14
- Registry model: [Doug DC-9-14](https://openairdocs.org/model/douglas-dc-9-14) (OpenAirDocs)
- Aircraft serial: 45727
- System (JASC): [3520 · Passenger Oxygen System](https://openairdocs.org/jasc/3520)
- Part: Oxy Mask
- Condition: Out Of Adjust
- Location: Cabin
- Stage of operation: CR
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/MWEA97786

## Discrepancy

CLIMBING, O2 MASK DROPPED AS PRESS LT ON CAB INDICATED 8,500 FT AT APPROX 26,000 FT.  MTC PERFORMED ADJUST TST IAW DC9MM 35-20-00.  REINSTALLED MASK, REMOVED AND REPLACED O2 REGU IAW DC9MM35-20-1.  PERFORMED TST AUTO PRESS SYS MM21-32-0, WITH SYS TESTING GOOD.

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