What was found
HEADS MISSING ON 2 OF 4 CAP SCREWS ON TORQUE MOTOR DUST COVER DUE TO APPARENT LEAK AT TORQUE MOTOR/SERVO VALVE JOINT. NO APPARENT TORQUE MOTOR/SEALING SURFACE OR O-RING DAMAGE OBSERVED UPON DISSASSEMBLY--UNIT TESTED NORMALLY.
- Difficulty date
- August 29, 2011
- Submitted
- August 29, 2011
- Operation
- General aviation
- Filed by
- CHIR823C
Columbia Helicopters, Inc - System (JASC)
- 5100 · Standard Practices/Structures
- Part
- Servo Valve
- Part number
- 114HS5801
- Part serial
- 16352
- Condition
- Leaking
- Location
- Nr 2 Roll
- Component
- Extensible Link
- Component part number
- 414H70006
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.