Service difficulty report · Governor · Bell 206B

Difficulty date
January 9, 2013
Submitted
September 14, 2015
Operation
General aviation
Make and model
Bell 206B
Aircraft time
14,604 hours
Engine
Allsn 250C20
Part
Governor
Part number
23065121
Condition
Malfunctioned
Location
Engine
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.

What was found

(CAN) PREFLIGHT INSPECTION OF ACFT REVEALED GOVERNOR BIASING SHAFT, PN 206-062-717-1, ON TRANSMISSION DECK TWISTED AT SHEAR POINT. LINEAR ACTUATOR ARM REMOVED AT GOVERNOR ARM, PN 206-061-107-3, TO INSPECT FOR BINDING. GOVERNOR ARM/SHAFT SEIZED. SERVICEABLE BIASING SHAFT INSTALLED, PN 206-062-717-1. GOVERNOR REPLACED. FURTHER INSPECTION OF GOVERNOR REVEALED BREAK AWAY PRESSURE OF 11 LBS TO INITIATE ARM MOVEMENT. MEASUREMENT WAS TAKEN USING DIGITAL SPRING SCALE FROM OUTER HOLE OF ARM PN 206-061-107-3. THE ARM MEASURES 3.0" FROM CENTER OF SHAFT TO OUTER HOLE. THIS CALCULATES TO A BREAKAWAY TORQUE OF APPROXIMATELY 33" LBS. SAME RESTRICTION NOTED IN BOTH INCREASE AND DECREASE DIRECTIONS.

More about the Bell 206B