# SDR 2004F00390

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 17, 2004
- Submitted: September 20, 2004
- Operation: Air carrier
- Aircraft: [N267AS](https://openairdocs.org/aircraft/N267AS), registered now
- Make and model: Emb EMB-120ER
- Registry model: [EMB EMB-120ER](https://openairdocs.org/model/embraer-emb-120er) (OpenAirDocs)
- Aircraft serial: 120198
- Aircraft time: 31,490 hours, 32,575 cycles
- Engine: Pwa PW118
- Propeller: Hamstd 14RF9
- System (JASC): [6120 · Propeller Controlling System](https://openairdocs.org/jasc/6120)
- Part: Indicator
- Condition: Malfunctioned
- Location: Prop Torque
- Stage of operation: CL
- How discovered: O
- Nature of condition: N
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2004F00390

## Discrepancy

UPON TAKEOFF PILOT REPORTED THAT THE LT PROPELLER WOULD ONLY MAKE 85 PERCENT NP.  ABORTED THE LAST LEG AND CHOSE TO LAND.  A GROUND RUN UP DETERMINED THAT THE LT NP WAS READING CORRECTLY.  THE CAUSE FOR THIS DESCREPANCY IS YET UNKNOWN.

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