# SDR TRBA2009077

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 23, 2009
- Submitted: August 27, 2009
- Operation: Air carrier
- Aircraft: N498AT
- Make and model: Aerosp ATR 72-212A
- Registry model: [Aerosp ATR 72-212A](https://openairdocs.org/model/aerospatiale-atr-72-212a) (OpenAirDocs)
- Aircraft serial: 498
- Aircraft time: 20,043 hours, 23,765 cycles
- Engine: Pwc PW127F
- Engine time: 17,218 hours, 20,358 cycles
- System (JASC): [6123 · Propeller Feathering/Reversing](https://openairdocs.org/jasc/6123)
- Part: Autofeather Sys
- Part number: 30048000018
- Part serial: MM1209
- Condition: Failed
- Location: Lt Eng
- Part time: 23,049 hours, 26,067 cycles
- 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/TRBA2009077

## Discrepancy

ENG NR 1 FAILED ON UPWIND AT 400 AGL AFTER TAKEOFF.  NO MASTER CAUTION OR MASTER WARNINGS.  FOLLOWED AOM VOL 1 PROCEDURES AND RETURN FOR LANDING. EMERGENCY DECLARED.  PERFORMED FDR DOWNLOAD IAW ETN NR E2-31-030R2. PERFORMED PROCEDURE OF READING EEC MEMORY FAULT CODES ON NR 1 ENG THROUGH ACARS IAW JIC NR 23-24-00.  REMOVED AND REPLACED LT AFU IAW JIC NR 72-01-10 AND PERFORMED OPT TEST OF AFU AND ENG UPTRIM SYS IAW JIC NR 61-22-00. ALSO PERFORMED DVI, CLEANED AND RESHRINK WRAPPED OF LT ENG NR 1 AND NR 2 TORQUE SENSORS IAW JIC NR 77-13-61.   ACFT RELEASED FOR FCF AND FOUND SATISFACTORY.

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