# SDR UIEA2021012900152

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 26, 2021
- Submitted: January 29, 2021
- Operation: Air carrier
- Aircraft: [N1489A](https://openairdocs.org/aircraft/N1489A), registered now
- Make and model: Boeing 767-31K
- Registry model: [Boeing 767-31K](https://openairdocs.org/model/boeing-767-31k) (OpenAirDocs)
- Aircraft serial: 27206
- Aircraft time: 108,920 hours, 21,712 cycles
- System (JASC): [3500 · Oxygen System](https://openairdocs.org/jasc/3500)
- Part: Avranging Unit
- Part number: 00044
- Part serial: 21656
- Condition: Failed
- Location: Oxygen Ind
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K, O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2021012900152

## Discrepancy

OXYGEN INDICATION DIFFERENT FROM BOTTLE GAUGE READING.  REMOVED AND REPLACED VOLTAGE AVERAGING UNIT, IAW AMM 35-11-06.  OPERATIONS CHECK GOOD.

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