Service difficulty report · Control Horn · Beech A100

Difficulty date
November 28, 2013
Submitted
September 14, 2015
Operation
General aviation
Make and model
Beech A100
Aircraft time
22,533 hours
Engine
Pwa PT6A28
Propeller
Hartzl HCD4N3C
Part
Control Horn
Part number
11561001421
Condition
Cracked
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) WHILE DOING A PHASE INSPECTION ON THE TAIL SECTION, AN EMPLOYEE FOUND SOME LOOSENESS ON THE LT CONTROL HORN ASSY. THE LT ELEVATOR ASSY HAS BEEN REMOVED TO LOOK AT THE THE BEARING CONDITION. THE BEARING WAS IN GOOD CONDITION AND THE LOOSENESS WAS COMING FROM THE BUSHING INSIDE THE CONTROL HORN. WHEN THE EMPLOYEE TRIED TO REMOVE THE BUSHING, SAW THAT 5 CRACKS WAS AROUND THE HOLE OF THE CONTROL HORN AND THE BUSHING WAS LOOSE INSIDE THE HOLE. THE HORN WAS REPLACED BY A NEW ONE.

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