What was found
ROTOR RPM REMAINED IN LOW RED RANGE (95%) IN FLIGHT. LOW ROTOR RPM LIGHT AND HORN CAME ON INTERMITTENTLY. REMOVED AND REPLACED VARTOMS CONTROL BOX IAW AMM 76-13-00, 4-1. FUNCTIONAL CHECK COMPLETED OK.
- Difficulty date
- September 11, 2026
- Submitted
- September 11, 2026
- Operation
- General aviation
- Make and model
- Bolkms BK117C2
- Aircraft serial
- 9334
- Aircraft time
- 5,282 hours
- System (JASC)
- 7600 · Engine Controls
- Part
- Control Box
- Part number
- B761M5023103
- Part serial
- 409
- Condition
- Faulty
- Location
- Vartoms
- Stage of operation
- TX
- How discovered
- V
- Nature of condition
- F
- Precautionary procedure
- C
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.