# SDR IPXA2019022639487

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 26, 2019
- Submitted: February 27, 2019
- Operation: Air carrier
- Aircraft: [N407UP](https://openairdocs.org/aircraft/N407UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 23729
- Aircraft time: 31,768 hours, 21,492 cycles
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Warning Message
- Condition: False Activation
- Location: Gcu
- 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/IPXA2019022639487

## Discrepancy

ON LANDING BLOCK IN LEFT BUS A13 FOUND IN OUT POSITIONPERFORMED BPCU BITE TEST WRT B757FRFIM 24-20-810-802 CODE 59 RECORDED R/R LT GCU WRT AMM 24-22-02--401 AS REQ IN FIM ALSO R/R CB A13 WRT BSWPM 20-30-00 AS PRECAUTIONARY PERFORMED IDLE RUN ON LT ENG WRT AMM 71-00-00 LT GEN & BUS OP CK NORMAL.  IPC REF 24-22-02-51A-015P

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