# SDR I5PA2023091975704

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 19, 2023
- Submitted: September 21, 2023
- Operation: Air carrier
- Aircraft: [N757QM](https://openairdocs.org/aircraft/N757QM), registered now
- Make and model: Boeing 757-29J
- Registry model: [Boeing 757-29J](https://openairdocs.org/model/boeing-757-29j) (OpenAirDocs)
- Aircraft serial: 27203
- Aircraft time: 65,354 hours, 34,035 cycles
- System (JASC): [2400 · Electrical Power System](https://openairdocs.org/jasc/2400)
- Part: Control Unit
- Part number: 520854
- Part serial: F9228081
- Condition: Faulty
- Location: P71
- Stage of operation: IN
- How discovered: C
- Nature of condition: S
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/I5PA2023091975704

## Discrepancy

ESI - HMG VALVE INOP. R/R HMG CONTROL UNIT PER AMM 24-25-02. OPS CHECK NORMAL PER AMM 24-25-00.

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