# SDR ASAA2026091066825

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 10, 2026
- Submitted: September 15, 2026
- Operation: Air carrier
- Aircraft: [N204HA](https://openairdocs.org/aircraft/N204HA), registered now
- Make and model: Airbus A321-271NX
- Registry model: [Airbus A321-271NX](https://openairdocs.org/model/airbus-s-a-s-a321-271nx) (OpenAirDocs)
- Aircraft serial: 07959
- Aircraft time: 26,310 hours, 5,484 cycles
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fire Detector
- Part number: 889148
- Condition: Faulted
- Location: Nr 1 Engine
- Stage of operation: CL
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2026091066825

## Discrepancy

ATB VERIFICATION FLIGHT UNSUCCESSFUL. ENG 1 FIRE LOOP A FAULT DURING CLIMB. GROUNDED - YES. ATB ACKNOWLEDGED BY MX. ENG 1 FIRE LOOP A FAULT ACKNOWLEDGED BY MX,  OK TO CONTINUE. PERFORMED TROUBLESHOOTING OF ENG 1 FIRE LOOP A FAULT IAW TSM 26-12-00-810-803-A REV 41. CARRIED OUT REPLACEMENT OF ENG 1 PYLON LOOP A (3WD1) IAW AMM 26-12-16-000/400-803, CORE VENT LOOP A (4001WD1) IAW AMM 26-12-17-000/400-803, CORE AGB LOOP A IAW AMM 26-12-17-000/400-802, FDU IAW AMM 26-12-34-000/400-001, ENG 1 FIRE DETECTOR HARNESS ON PYLON (31WD1) IAW AMM 26-12-63-000/400-801. PERFORMED OPC IAW A321 AMM 26-12-00-710-002-A, AMM TASK 26-12-00-710-001-A. TEST SATISFACTORY.

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