# SDR DALA2017070205150

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 24, 2017
- Submitted: July 3, 2017
- Operation: Air carrier
- Aircraft: N934DN
- Make and model: Doug MD-90-30
- Registry model: [Doug MD-90-30](https://openairdocs.org/model/mcdonnell-douglas-md-90-30) (OpenAirDocs)
- Aircraft serial: 53462
- Aircraft time: 41,374 hours, 25,477 cycles
- System (JASC): [7830 · Engine Thrust Reverser](https://openairdocs.org/jasc/7830)
- Part: Duct
- Condition: Delaminated
- 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/DALA2017070205150

## Discrepancy

ABORTED TAKE OFF DUE TO LT ENGINE FIRE DET FAULT AT 80 KNTS. FOUND LEFT ENGINE LOWER THRUST REVERSER C-DUCT DELAMINATED IN COLD STREAM.  PERFORMED TAKE OFF POWER RUNS ON LT ENGINE. LT ENG FIRE DET FAULT OCCURRED AT 1.39 EPR. REPLACED LT ENG LWR C-DUCT.  RAN ENGINE TO POWER WITH NO FAULTS. PERFORMED ALL NO GO ODI TASKS. NO FAULTS FOUND.  THE DELAMINATION OF THE LWR C-DUCT  IS SUSPECTED TO HAVE IMPACTED NORMAL OPERATION OF THE FIRE LOOP OPERATION.

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