# SDR UIEA2021080201669

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 1, 2021
- Submitted: August 5, 2021
- Operation: Air carrier
- Aircraft: [N1361A](https://openairdocs.org/aircraft/N1361A), registered now
- Make and model: Boeing 767-31B
- Registry model: [Boeing 767-31B](https://openairdocs.org/model/boeing-767-31b) (OpenAirDocs)
- Aircraft serial: 26265
- Engine: Ge CF680C2B6F
- System (JASC): [7712 · Engine BMEP/Torque Indicating](https://openairdocs.org/jasc/7712)
- Part: Engine
- Condition: Malfunctioned
- Location: Left
- 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/UIEA2021080201669

## Discrepancy

ON CLIMBOUT NAI ON, LEFT ENG N1 2% LOWER THAN R ENG. LEFT N1 SHOWED 103.1, R ENG SHOWED 105.5. AFTER NAI SWITCH OFF, BOTH ENG SHOWED SAME N1(<P>PERFORMED FIM TASK 77-12 FT 825, NO DISCREPANCIES FOUND. RUN ENGINES 1 AND 2 ABOVE IDLE AND NAI ON. IAW B767 AMM 77-00-00. UNABLE TO DUPLICATE DISCREPANCIES AT THIS TIME, OPS CHECK NORMAL, PARAMETERS WITHIN LIMITS.

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