Service difficulty report · Bellcrank · Beech B99

Difficulty date
June 13, 2000
Submitted
July 20, 2000
Operation
General aviation
Aircraft
N99TH
Make and model
Beech B99
Aircraft serial
U155
Part
Bellcrank
Part number
50524327
Condition
Corroded
Location
Rudder
Part time
33,111 hours
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

DURING A ROUTINE INSPECTION, THE RUDDER WAS FOUND TO HAVE SOME FREE-PLAY AT THE TOP PIVOT BEARING SUPPORT. IT WAS NECESSARY TO REMOVE THE RUDDER TO INSPECT FOR HIDDEN DAMAGE. UPON REMOVAL, NOTICED THE RUDDER BELLCRANK CORRODED AT THE BOLT HOLES THAT SECURE THE RUDDER TO THE BELLCRANK. THE DEFECTIVE BELLCRANK WAS REPLACED WITH A SERVICEABLE BELLCRANK. FUTURE INSPECTION TECHNIQUES WILL INCLUDE MINOR DISASSEMBLY IN THIS AREA TO INSPECT FOR CORROSION. (X)

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