# SDR CNMA202403130001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 11, 2024
- Submitted: March 13, 2024
- Operation: Air carrier
- Aircraft: [N468AX](https://openairdocs.org/aircraft/N468AX), registered now
- Make and model: Boeing 767-36N
- Registry model: [Boeing 767-36N](https://openairdocs.org/model/boeing-767-36n) (OpenAirDocs)
- Aircraft serial: 30115
- Aircraft time: 77,250 hours, 15,475 cycles
- Engine: Ge CF680C2B6F
- Engine time: 68,576 hours, 13,657 cycles
- System (JASC): [7320 · Fuel Controlling System](https://openairdocs.org/jasc/7320)
- Part: Hmu
- Part number: 442564
- Part serial: BECK3919
- Condition: Faulted
- Location: Lt Engine
- Stage of operation: CR
- How discovered: V
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CNMA202403130001

## Discrepancy

DURING CRUISE FLIGHT AT FL370 LEFT ENGINE N1 ROLLED BACK WITH CORRESPONDING VIBRATIONS

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