# SDR SIMA0737

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 14, 2001
- Submitted: April 17, 2001
- Operation: Air carrier
- Aircraft: [N712AE](https://openairdocs.org/aircraft/N712AE), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145247
- System (JASC): [7830 · Engine Thrust Reverser](https://openairdocs.org/jasc/7830)
- Part: Relay
- Part number: M83726
- Condition: Failed
- Location: Thrust Reverser
- Stage of operation: TO
- How discovered: O
- Nature of condition: N
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA0737

## Discrepancy

ORD - FLT 4123 - DURING TAKEOFF ROLL, AFTER 80 KNOTS BUT PRIOR TO Y1 CREW RECEIVED THE NR 2 REVERSER DISAGREE MESSAGE.  TAKEOFF WAS ABORTED.  MESSAGE CLEARED DURING THE ABORT.  MAINTENANCE REPLACED RELAY K0640.  OPERATIONAL CHECK WAS GOOD AND AIRCRAFT WAS RETURNED TO SERVICE.  (M)

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