# SDR AALA202607019303

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 30, 2026
- Submitted: July 2, 2026
- Operation: Air carrier
- Aircraft: [N927NN](https://openairdocs.org/aircraft/N927NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 31171
- Aircraft time: 38,199 hours, 16,653 cycles
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fire Loop
- Condition: Out Of Tolerance
- Location: Zone 400
- Stage of operation: CL
- How discovered: O
- Nature of condition: N
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202607019303

## Discrepancy

AIRCRAFT WAS GROUNDED: ON CLIMB OUT THROUGH 1000' ENG 2 OVHT ILLUMINATED WITH MASTER CAUTION. LIGHT EXTINGUISHED WITH QRC PROCEDURE. DECESION MADE TRO RETURN TO DFW, EMERGENCY DECLARED AND LANDED OVERWIGHT WITHOUT INCIDENT.  LIGHT ILLUMINATED AGAIN ON TAXI TO GATE POST ARFF INSPECTION. ARFF REPORTED NO ABNORMALITIES AND NO ABNORMAL COCKPIT INDICATIONS. MAINTENANCE PERFORMED FIM 26-10-00-810-805 STEP F.4.C FOUND ENG CORE RIGHT LOOP A M1760 OUT OF LIMITS AND REPLACED ENG CORE RIGHT LOOP A DETECTOR M1760 PER AMM 26-11-01

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