# SDR HNAA2021022700063

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 24, 2021
- Submitted: March 1, 2021
- Operation: Air carrier
- Aircraft: [N608LM](https://openairdocs.org/aircraft/N608LM), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145068
- Aircraft time: 50,012 hours, 43,955 cycles
- System (JASC): [7830 · Engine Thrust Reverser](https://openairdocs.org/jasc/7830)
- Part: Switch
- Condition: Malfunctioned
- Location: Thrust Reversers
- Stage of operation: TO
- How discovered: O
- Nature of condition: J
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HNAA2021022700063

## Discrepancy

ENGINE NR 2 T/R DEPLOYED AT 85 TO 90 KNOTS ON TAKE OFF ROLL. ABORTED TAKEOFF. MAINTENANCE PERFORMED: MEL 24FEB21 09:04 ROA C05503 78-1 THRUST REVERSES C/W MAINT AND FLT CREW PROCEDURES.   FDR SHOWS #2 ENGINE TR WAS IN TRANSIT. ELECTRICALLY TESTED BOTH THE UPPER AND THE LOWER T/R TRANSIT SWITCH'S. UPPER TRANSIT SWITCH FAILED ELECTRICAL TEST. R&R'D UPPER TRANSIT SWITCH IN REF TO AMM 78-34-01. OPERATED T/R OPS CK GOOD AT THIS TIME.

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