# SDR UALA2013031101409

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 10, 2013
- Submitted: April 4, 2013
- Operation: Air carrier
- Aircraft: [N838UA](https://openairdocs.org/aircraft/N838UA), registered now
- Make and model: Airbus A319-131
- Registry model: [Airbus A319-131](https://openairdocs.org/model/airbus-industrie-a319-131) (OpenAirDocs)
- Aircraft serial: 1477
- Aircraft time: 41,025 hours, 16,890 cycles
- Engine: Iae V2522A5
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fire Loop
- Part serial: 4001WE1
- Condition: Faulted
- Location: Nr 2 Engine
- Stage of operation: NR
- How discovered: 9
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2013031101409

## Discrepancy

NR 2 ENGINE FIRE LOOP B WARNING MESSAGE.  TROUBLESHOT IAW TSM 26-12-00-810-808-A PG1 TO PG3.  RESISTANCE FROM EACH LOOP DETECTOR (CORE-FAN PYLON) IS WITHIN LIMITS.  NEED TO CONT ON TO PG3 ITEM B OF TSM 26-12-00-810-808-A.   ALL RESISTANCE AND READING VALUES WERE WITHIN LIMITS.  REPLACED LOOP IAW AMM 26-12-17 ,MESSAGE CLEARED, SHOOK AND RANG WIRING FROM JBOX TO LOWER LOOP, NO MESSAGE AND FAULTS.   RAN ENGINE AND FIRE CHECKS AND NO FAULTS FOUND.  OP CHECKED GOOD.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.