# SDR UALA2013011400227

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 12, 2013
- Submitted: February 8, 2013
- Operation: Air carrier
- Aircraft: N581UA
- Make and model: Boeing 757222
- Aircraft serial: 26701
- Aircraft time: 65,152 hours, 23,044 cycles
- Engine: Pwa PW2037
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Idg
- Part number: 729825M
- Part serial: 31329
- Condition: Failed
- Location: Nr 1
- Stage of operation: CL
- How discovered: O
- Nature of condition: H, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2013011400227

## Discrepancy

LEFT GENERATOR FAILED, RETURNED TO FIELD.  CHECKED IDG OIL REF AMM 12-13-03.  REPLACED NR 1 GCU REF AMM 24-22-02.  RAN ENGINE, GENERATOR DID NOT COME ON LINE.  PLACED ORIGINAL GCU BACK IN ACFT IAW AMM 24-22-02.    REPLACED IDG PER MM, OPS CHECKED NORMAL.

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