# SDR 2004F00277

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 1, 2004
- Submitted: September 1, 2004
- Operation: Air carrier
- Aircraft: [N141AE](https://openairdocs.org/aircraft/N141AE), registered now
- Make and model: Aerosp ATR 42-300
- Registry model: [Aerosp ATR 42-300](https://openairdocs.org/model/aerospatiale-aeritalia-atr-42-300) (OpenAirDocs)
- Aircraft serial: 141
- Engine: Pwa PW121
- System (JASC): [7714 · Engine RPM Indicating System](https://openairdocs.org/jasc/7714)
- Part: Sensor
- Part number: 3039242
- Condition: Erratic
- Location: Rt Engine
- Stage of operation: CL
- How discovered: O
- Nature of condition: R, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2004F00277

## Discrepancy

DURING CLIMB, RT ENGINE NP INDICATOR DROPPED FROM 86 PERCENT OT 65 PERCENT.  CREW DECLARED EMERGENCY.  REPLACED RIGHT ENGINE NP SENSOR.  (M)

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