Service difficulty report · Hinge Bracket · Beech C90A

Difficulty date
August 8, 2003
Submitted
September 4, 2003
Operation
General aviation
Make and model
Beech C90A
Aircraft time
6,350 hours
Engine
Pwa PT6A21
Part
Hinge Bracket
Part number
50610000546
Condition
Worn
Location
Elevator
Part time
14,533 cycles
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

(CAN) LT ELEVATOR BOLT FOUND LOOSE DURING CHECK. HINGE BRACKET & BOLT EXHIBITED ABNORMAL WEAR. BOLT GROOVED .024 TO A DIAMETER OF .225 & BRACKET HOLES ELONGATED TO .284 & .290, RESULTING IN EXCESSIVE MOVEMENT OF HINGE. INSTALATION OF BOLT IAW MM WITH ONE AN960416L & ONE AN960416 WASHERS. IT APPEARS THAT WITH THIS INSTALATION, NUT BOTTOMED ON SHOULDER OF BOLT. C90A MM CONTAINS A CAUTION TO THIS EFFECT (CH 27-30-00 PG 202) INDICATING PREMATURE WEAR MAY OCCUR. ALSO NOTED, BUSHING OVERALL LENGTH .900, BRACKET INTERNAL BORE LENGTH .930. REPLACEMENT OF BOLT, NUT AND WASHERS, BRACKET, BUSHING AND HINGE BEARING, VISUAL INSPECTION OF ATTACHMENT BRACKETS, ELEVATOR BALANCING VERIFIED. NO FURTHER FAULTS FOUND.

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