# SDR HDNA200811072008

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 6, 2008
- Submitted: November 7, 2008
- Operation: Air carrier
- Aircraft: [N911KB](https://openairdocs.org/aircraft/N911KB), registered now
- Make and model: Urocop EC135P1
- Registry model: [Urocop EC135P1](https://openairdocs.org/model/eurocopter-deutschland-ec135p1) (OpenAirDocs)
- Aircraft serial: 0013
- Aircraft time: 7,180 hours, 24,461 cycles
- Engine time: 5,492 hours, 15,685 cycles
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Contactor
- Condition: Contaminated
- Location: Fire Detector
- Component: Fire Detector, Pwc
- Component part number: 17343162400
- Stage of operation: TO
- How discovered: O
- Nature of condition: N
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HDNA200811072008

## Discrepancy

DURING TAKEOFF, THE NR 1 ENGINE FIRE DETECTOR LIGHT ILLUMINATED ON THE WARNING PANEL.  THE AIRCRAFT RETURNED TO THE HELIPAD WITHOUT INCIDENT.  DURING THE INSPECTION OF THE SYSTEM IT WAS FOUND THAT THE FIRE DETECTOR CONTACTORS WERE WET FROM A PREVIOUS RAIN STORM.  THE CONTACTORS WERE CLEANED AND THE SYSTEM WAS OPERATING WITHIN LIMITS.

---
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.