# SDR 97ZZZM160

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 5, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N934ML
- Make and model: Doug DC-9-31
- Registry model: [Doug DC-9-31](https://openairdocs.org/model/douglas-dc-9-31) (OpenAirDocs)
- Aircraft serial: 47526
- System (JASC): [3520 · Passenger Oxygen System](https://openairdocs.org/jasc/3520)
- Part: Oxygen Mask
- Condition: Deployed
- Location: Cabin
- Stage of operation: CL
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/97ZZZM160

## Discrepancy

FLT 205 - FLL - PASSENGER OXYGEN MASKS DEPLOYED AT TOP OF CLIMB, 31,000 FEET, NO PRESSURIZATION PROBLEM PRESENT.  BAROMETRIC SETTING WAS AT A VERY LOW SETTING WHICH CAUSED A HIGHER THAN NORMAL CABIN ALTITUDE.  MAINTENANCE PERFORMED AN INSPECTION OF SYSTEM AND OPERATIONAL CHECK OF OXYGEN MASKS IAW DC9 MM, CHAPTER 35-20-3.  ALL CHECK NORMAL AND MASKS STOWED. AIRCRAFT RETURNED TO SERVICE.  (M)

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