# SDR UPS06M46205

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 17, 2006
- Submitted: February 20, 2006
- Operation: Air carrier
- Aircraft: [N273UP](https://openairdocs.org/aircraft/N273UP), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48574
- System (JASC): [3510 · Crew Oxygen System](https://openairdocs.org/jasc/3510)
- Part: Indicator
- Part number: 523298
- Part serial: 242
- Condition: Reads Low
- Location: Crew Oxygen Sys
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS06M46205

## Discrepancy

INSPECTION TYPE:PS2, THE CREW O2 BOTTLE NR 4 IS LOW PRESS AT THE BOTTLE AND READS APPROX 200 PSI LESS THAN THE REMOTE FLIGHT DEAC INDICATOR, LIMIT IS 150PSI DIFFERENCE).  REMOVED AND REPLACED NR 4 O2 BOTTLE IAW MM CH 35-11-01.  REPLACED COCKPI T O2 INDICATOR IAW MM CH 35-14-02 CKS NORMAL.

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