# SDR CA020718001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 11, 2002
- Submitted: August 7, 2002
- Operation: Air carrier
- Make and model: Bolkms BO105C
- Aircraft time: 8,249 hours
- Engine: Allsn 250C20B
- System (JASC): [6320 · Main Rotor Gearbox](https://openairdocs.org/jasc/6320)
- Part: Transmission
- Part number: 4638001009
- Condition: Making Metal
- Location: Main Rotor
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA020718001

## Discrepancy

(CAN) WHILE IN NORMAL CRUISE CONFIGURATION "MAIN TRANSMISSION" LIGHT ILLUMINATED. PILOT ACTIVATED PULSE CHIP DETECTOR SYSTEM AND LIGHT EXTINQUISHED. THE LIGHT RE-ILLUMINATED APPROX. 1.5 HOURS LATER. THE PILOT ONCE AGAIN ACTIVATED THE PULSE CHIP. DETECTOR SYSTEM, THE LIGHT EXTINGUISHED & REMAINED OUT FOR REMAINDER OF FLIGHT WHICH WAS APPROXIMATELY 45 MINUTES.MAINTENANCE PERSONNEL EXAMINED THE MAIN EXSN CHIP DETECTOR & EXTERNAL OIL FILTER. BOTH CONTAINED CONSIDERABLE AMOUNTS OF MAGNETIC METAL MATERIAL. AIRCRAFT SECURED & MAIN TRANSMISSION TO BE REPLACED.

---
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.