# SDR AALA201707319001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 26, 2017
- Submitted: July 31, 2017
- Operation: Air carrier
- Aircraft: [N543UW](https://openairdocs.org/aircraft/N543UW), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 4843
- Aircraft time: 19,355 hours, 7,826 cycles
- Engine: Iae V2533A5
- Engine time: 18,790 hours, 6,898 cycles
- System (JASC): [7300 · Engine Fuel and Control](https://openairdocs.org/jasc/7300)
- Part: Probe
- Condition: Failed
- Location: Speed
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201707319001

## Discrepancy

LOSS OF THRUST ON CLIMB OUT PASSING 5000 FEET, LEFT ENGINE EPR AT 1.44 - EPR INSTANTLY (1 SECOND)  WENT TO 1.42, THEN BACKTO CLIMB (1.44) PERFORMED NORMAL REST OF FLIGHT. MAINTENANCE ACCOMPLISHED MULTIPLE ENGINE TESTS.  ACCOMPLISHED VIBRATION SURVEY TEST 8 IAW AMM 71-00-00-700-022B.  NO ABNORMALITIES OR FAULTS NOTED. ACCOMPLISHED TSM 77-00-00-810-801-A FADEC 1B FAULT CODE N1L AND MESSAGE N1 SENS/HC/EEC1. SWAPPED B CHANNEL SPEED PROBE NR 3 TO SPARE FAN SPEED PROBE NR 2 IAW AMM 77-11-00-860-010-A.  ALL CHECKED NORMAL, NO FAULTS.  AIRCRAFT WAS GROUNDED.

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