Service difficulty report · Ring · Bell 412

Difficulty date
August 11, 2003
Submitted
September 4, 2003
Operation
General aviation
Make and model
Bell 412
Engine
Pwa PT6T3
Part
Ring
Part number
204011401125
Condition
Loose
Location
Swashplate
Stage of operation
IN
How discovered
9
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

(AUS) SWASHPLATE INNER RING LOOSE. INVESTIGATION FOUND GIMBAL BOLTS PNO 212-011-463-001 STEPPED AND BUSHING PNO 204-010-496-003 MOVING IN INNER RING HOLE. HOLE HAD BEEN ENLARGED BY APPROXIMATELY 0.762MM(0.030IN). SUSPECT CAUSED BY EXCESSIVE USE OF SEALANT ON BOLTS DURING ASSEMBLY.

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