Service difficulty report · Tube · Bell 212

Difficulty date
March 29, 2000
Submitted
July 5, 2000
Operation
General aviation
Make and model
Bell 212
Aircraft time
15,043 hours
Engine
Pwa PT6T3
Part
Tube
Part number
212076151007
Condition
Loose
Location
Cyclic
Component
Main Rotor Contr
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

(CAN) DURING INSPECTION, THE RIGHT CYCLIC SERVO INPUT LEVER WAS FOUND IN AN AFT OF CENTER ORIENTATION. SUBSEQUENT OBSERVATION REVEALED BOTH CYCLIC BOOST TUBES HAD LOOSE CLEVIS ASSEMBLIES AT LOWER END. THIS CAUSED THE SERVO TO ROTATE IN ANY POSITION AND INTERFERE WITH THE PARENT STRUCTURE. NORMALLY, THE CLEVISES MUST BE TIGHT AND LOCKED IN POSITION TO PREVENT THE SERVO FROM TURNING. THE USE OF SILICONE SEAL WAS USED TO BOND THE THREADED CLEVIS TO TUBE AS PER BELL MAINTENANCE MANUAL. BELL WAS INFORMED AND STATED THAT THEY ARE MAKING THE CORRECTION TO THE MAINTENANCE MANUAL.

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