# SDR DXTA2026071708804

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 13, 2026
- Submitted: July 18, 2026
- Operation: Air carrier
- Aircraft: [N796QS](https://openairdocs.org/aircraft/N796QS), registered now
- Make and model: Bombdr BD1001A10
- Aircraft serial: 20646
- Aircraft time: 10,086 hours, 5,870 cycles
- Engine: Hnywl AS90721A
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Part number: 700407022
- Part serial: P136756
- Condition: Vibration
- Location: Nr 1
- Stage of operation: CR
- How discovered: O
- Nature of condition: E, B, J
- Precautionary procedure: B, E, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA2026071708804

## Discrepancy

AT CRUISE AT FL400 FELT A VIBRATION IN PLANE. ABOUT A MIN LATER L ENG VIBRATION CASS MESS CAME ON. WHILE PULLING OUT QRH, RECEIVED A LT ITT EXCEEDANCE WARNING. BEGAN SMELLING SMOKE IN CABIN. PUT ON O2 MASK. RECEIVED A LT ENG FLAMEOUT CASS MESSAGE NEXT.  RAN QRC FOR INFLT ENG SHUTDOWN & LANDED ON 1 ENG IN KMEM.  REMOVED ENG WITH TSN: 6935.8 AND CSN: 4004 FROM NR 1.  INSTALLED A REPAIRED ENG PN P136294 TSN: 10128.4 CSN: 6074 IAW LMM 72-05-22 & AMM 71-00-01-000-801. ACCOMPD POST-INSTALLATION ENG RUNS, SERVICED ENG & ATS WITH 2197 OIL, FUEL & OLL DE-PRESERVATION, GRND RAN FOR LEAK CHKD & POWER ASSURANCE RUN IAW LMM 72-05-22 & AMM 71-00-01-000-801. ADDED 1 CYCLE FOR PERFORMANCE RUN.

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