# SDR CALA2017092903343

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 29, 2017
- Submitted: September 29, 2017
- Operation: Air carrier
- Aircraft: [N791UA](https://openairdocs.org/aircraft/N791UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26933
- Aircraft time: 86,575 hours, 11,873 cycles
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Circuit Card
- Part number: 47348708
- Part serial: 0439
- Condition: Failed
- Location: Fire Detection
- Stage of operation: CR
- 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/CALA2017092903343

## Discrepancy

FIRE  EICAS STATUS LEFT ENGINE.   FIRE/OVERHEAT DETECTION CARD FAULT OR FAILURE, OR AIMS LOSS OF ARINC 629/429.  REMOVED AND REPLACED LT ENGINE FIRE DETECTION CARD IAW AMM 26-11-03.  PERFORMED ENGINE FIRE DETECTION OPERATIONAL TEST IAW AMM 26-11-00. TEST PASSED. NO FURTHER MESSAGES.

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