# SDR 2004F00045

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 13, 2004
- Submitted: January 21, 2004
- Operation: Air carrier
- Aircraft: N7810W
- Make and model: Lear 25B
- Registry model: [Lear 25B](https://openairdocs.org/model/gates-lear-jet-25b) (OpenAirDocs)
- Aircraft serial: 117
- Engine: Ge CJ6108
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fire Loop
- Condition: Dirty
- Location: Nacelle
- Stage of operation: CR
- 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/2004F00045

## Discrepancy

FALSE FIRE WARNING DURING FLIGHT. AFTER A/C LANDED, PILOT REPORTED INDICATION WAS INTERMITTENT.  COWL WAS REMOVED, ENGINE INSPECTED, NO INDICATION OF FIRE/OVERHEAT.  DETECTION LOOP INTACT/NO DAMAGE.  WIRING CONNECTIONS AT FIREWALL DISCONNECTED, APPEARED TO BE MORE THAN NORMAL BUILD UP OF GRIME/CARBON.  CLEANED TERMINALS/CONTACTS, RECONNECTED.  GROUND RUN, UNABLE TO DUPLICATE FIRE INDICATION.

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