# SDR ASAA1058550

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 26, 2010
- Submitted: November 30, 2010
- Operation: Air carrier
- Aircraft: [N596AS](https://openairdocs.org/aircraft/N596AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35688
- Aircraft time: 9,880 hours, 3,189 cycles
- Engine: Cfmint CFM567B27
- Engine time: 9,880 hours, 3,189 cycles
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Part number: CFM567B273
- Part serial: 896469
- Condition: Malfunctioned
- Location: Nr 1
- Part time: 9,880 hours, 3,189 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: R
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA1058550

## Discrepancy

NR 1 ENGINE LIMIT SURGE / STALL OUT OF APPROX FL220 OPERATED ENGINE AT REDUCED THRUST TO LANDING.  DIVERSION TIME 27 MINUTES.  LEFT EEC LOGGED ENGINE EXCEEDANCE OF 111.3 PERCENT & 106.6 PERCENT N2.  ALSO LOGGED FAULT CODE 73 20331.  FMU DEMAND & POSITION SIGNALS DISAGREE.  REMOVED AND REPLACED NR 1 ENG PER TC 78471000 AND 78471001 WO 98528.

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