SDR HEEA968606

Service difficulty report · Cylinder Assy · Bell 412

Difficulty date
December 3, 1996
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N911PB
Make and model
Bell 412
Aircraft serial
33186
Part
Cylinder Assy
Part number
212076005105
Condition
Leaking
Location
M/R Control
Part time
2,618 hours
Stage of operation
IN
Nature of condition
K
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

SERVO TESTED PRIOR TO REPAIR. SERVO LEAKING AT BOTH ENDS OF UPPER AND LOWER CYLINDERS. LEAKING INTERNALLY IN NEUTRAL POSITION IN BOTH CYLINDERS AND LEAKING EXTERNALLY AT BOTH LOWER PILOT VALVES.

More about the Bell 412