# SDR UIEA2020092852070

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 23, 2020
- Submitted: September 28, 2020
- 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: 108,026 hours, 21,429 cycles
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Contactor
- Part number: B4291
- Part serial: CL16925
- Condition: Failed
- Location: Generator
- Stage of operation: TX
- How discovered: C
- Nature of condition: L
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2020092852070

## Discrepancy

ON TRANSFER RIGHT GEN WILL NOT POWER LEFT A/C.  REMOVED AND REPLACED BTB, IAW AMM 24-22-03.  OPS CHECK NO HELP S/N OFF: CL17588, P/N OFF: B430-1.  REPLACED LEFT TRANSFORMER RECTIFIER TRU, REFER TO ITEM 1.  NO HELP S/N OFF: 2550, P/N OFF: 4-273-03.  REPLACED LEFT GCB C901, NO HELP, REF AMM 24-23-01.  S/N OFF: CL 17588, P/N OFF: B-430-1.  ITEM M3: DURING T/S FOUND NO CONTINUITY ON PINS 17-18, K114, PER SSM 24-20-02. R & R K114, IAW AMM 24-41-01, PERFORMED CONTACTOR INSTALLATION TEST, IAW AMM 24-41-01, NO DEFECT NOTED.  S/N OFF: CL-16925, P/N OFF: B429-1.

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