# SDR P5CA2020112500387

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 25, 2020
- Submitted: November 30, 2020
- Operation: Air carrier
- Aircraft: N643GT
- Make and model: Boeing 767-3JHF
- Registry model: [Boeing 767-3JHF](https://openairdocs.org/model/boeing-767-3jhf) (OpenAirDocs)
- Aircraft serial: 37809
- Aircraft time: 19,067 hours, 5,141 cycles
- System (JASC): [3510 · Crew Oxygen System](https://openairdocs.org/jasc/3510)
- Part: Transducer
- Condition: Malfunctioned
- Location: Voltage
- 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/P5CA2020112500387

## Discrepancy

FOUND CREW OXY PRESSURE INDICATION ABNORMAL.  TRANSFERRED TO MDDR 138395, IAW MEL 35-11-02-01, CAT B.  REMOVED AND REPLACED AVERAGING VOLTAGE UNIT & REGULATOR TRANSDUCER ON CREW OXY.  THEN OPERATIONS CHECK OK, IAW AMM 35-11-04/401 & AMM 35-11-06/401.  CLEARED MDDR NR 138395, REMOVED PLACARD, NOTIFIED TO MCC.  T/I: DT 0548Z.

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