# SDR UIEA2018082801814

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 28, 2018
- Submitted: August 28, 2018
- 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: 103,015 hours, 19,813 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Motor
- Part number: 20224785
- Part serial: 333685
- Condition: Faulty
- Location: Nr 1
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2018082801814

## Discrepancy

RECEIVED CABIN ALTITUDE WARNING AT FL390. FOLLOWED QRH ABLE TO MAINTAIN CABIN ALTITUDE IN MANUAL MODE ONLY. AFTER TROUBLESHOOTING FOUND NR 1 AC MOTOR FAULTY. REMOVED AND REPLACED AC MOTOR OPS CHECK GOOD IAW AMM 21-31-05.

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