# SDR HALA20250122028

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 21, 2025
- Submitted: January 22, 2025
- Operation: Air carrier
- Aircraft: [N215HA](https://openairdocs.org/aircraft/N215HA), registered now
- Make and model: Airbus A321-271N
- Registry model: [Airbus A321-271N](https://openairdocs.org/model/airbus-a321-271n) (OpenAirDocs)
- Aircraft serial: 8266
- Aircraft time: 19,862 hours, 4,310 cycles
- Engine: Iae PW1133GAJM
- Engine time: 14,153 hours, 3,035 cycles
- System (JASC): [2697 · Fire Protection System Wiring](https://openairdocs.org/jasc/2697)
- Part: Wire Harness
- Condition: Chafed
- Location: Fire Loop
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HALA20250122028

## Discrepancy

ETOPS - INFO TO MX: ENG 1 FIRE LOOP A FAULT ECAM APPEARED AND DISAPPEARED MULTIPLE TIMES DURING FLIGHT. WHILE CHECKING INSULATION RESISTANCE AT FDU 1 LOOP A CONNECTOR PIN J-GRD & SHAKING LOOP A HARNESS 4165KS GOT A FLUCTUATION IN RESISTANCE FROM <100MOHMS TO 4 OHMS CHECKED 4165KS & FOUND CHAFING AT 4033VC MAKING CONTACT TO HARNESS SHIELD. REMOVED & REPLACED ENG 1 LOOP A HARNESS 4165KS PER AMM 26-12-61. FDU 1 BITE PER AMM 26-12-00. TEST OK. OK FOR SERVICE.

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