# SDR 99ZZZM79

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 3, 1998
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N97841
- Make and model: Aerosp ATR 42-320
- Registry model: [Aerosp ATR 42-320](https://openairdocs.org/model/aerospatiale-aeritalia-atr-42-320) (OpenAirDocs)
- Aircraft serial: 280
- Engine: Pwa PW121
- System (JASC): [7714 · Engine RPM Indicating System](https://openairdocs.org/jasc/7714)
- Part: Sensor
- Part number: 3033515
- Condition: Failed
- Location: Nr 2 Engine
- Stage of operation: AP
- Nature of condition: X, Z, O
- Precautionary procedure: E
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/99ZZZM79

## Discrepancy

TEST FLIGHT NR 2 ENGINE, ECU PROBLEM.  NR 2 ENGINE SHUTDOWN ON APPROACH.  REMOVED AND REPLACED NR 2 ECU AND NH SENSOR. TEST FLOWN SATISFACTORY.  (M)

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