# SDR ASOA01049S

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 28, 2001
- Submitted: August 10, 2001
- Operation: Air carrier
- Aircraft: [N236AS](https://openairdocs.org/aircraft/N236AS), registered now
- Make and model: Emb EMB-120
- Registry model: [EMB EMB-120](https://openairdocs.org/model/embraer-emb-120) (OpenAirDocs)
- Aircraft serial: 120049
- Engine: Pwa PW118
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Switch
- Part number: 214C40183
- Condition: Intermittent
- Location: Cockpit
- Stage of operation: CL
- Nature of condition: Y
- Precautionary procedure: A, E
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASOA01049S

## Discrepancy

FLT 4063 - DURING CLIMB-OUT FROM ATL, AT APPROXIMATELY 15,000 MSL, AIRCRAFT EXPERIENCED LEFT ENGINE FLAME OUT.  AIRCRAFT RETURNED TO AND LANDED SAFELY IN ATL.  MAINTENANCE REMOVED AND REPLACED THE LEFT ENGINE HYDROMECHANICAL UNIT.  TEARDOWN REPORTS FROM PRECISION ELECTRONICS REVEAL THE ENGINE FAILURE WAS CAUSED BY THE COMBINATION OF A BAD 14K PRESSURE SWITCH AND OUT OF TOLERANCE CALIBRATION ON THE HMU.  (M)

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