# SDR SWAA2018062523041

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 21, 2018
- Submitted: June 26, 2018
- Operation: Air carrier
- Aircraft: N729SW
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 27861
- Aircraft time: 67,634 hours, 39,539 cycles
- System (JASC): [7320 · Fuel Controlling System](https://openairdocs.org/jasc/7320)
- Part: Hmu
- Part number: 442369
- Part serial: BAMW3818MFR
- Condition: Malfunctioned
- Location: Nr 2 Engine
- Stage of operation: DE
- How discovered: O
- Nature of condition: R
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2018062523041

## Discrepancy

IN DESCENT AS THE PLANE WAS LEVELING OFF AT FL 340 AND THROTTLES COMING UP, RIGHT ENGINE STAYED AT 40% AND BEGAN TO STALL (MILD CHUGGING) FROOM RIGHT ENGINE.  R&R HYDRO MECHANICAL UNIT PER AMM.

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