# SDR DALA2021112907331

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 26, 2021
- Submitted: November 29, 2021
- Operation: Air carrier
- Aircraft: [N550NW](https://openairdocs.org/aircraft/N550NW), registered now
- Make and model: Boeing 757251
- Aircraft serial: 26497
- Aircraft time: 54,420 hours, 22,618 cycles
- System (JASC): [7603 · Power Lever](https://openairdocs.org/jasc/7603)
- Part: None
- Condition: None
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: E, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2021112907331

## Discrepancy

SHIP 5650 -ATB/IFSD- DURING CLIMB OUT AT APPROXIMATELY 17,000FT THE LEFT ENGINE THROTTLE BECAME UNRESPONSIVE. CREW PERFORMED AIR TURN BACK TO MSP. FLIGHT CREW SHUT DOWN THE ENGINE PER QRH. CORRECTIVE ACTION: EEC AND FCU REPLACED, WIRING CHECKS PERFORMED. FOUND P/S TLR FB INT MESSAGE DURING CHECKOUTS. VERIFIED SHORT INTERNAL TO THRUST LEVER RESOLVER. RESOLVER REPLACED AND MESSAGES CLEARED. SYSTEM CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.

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