Service difficulty report · Brace · Beech C90A

Difficulty date
November 16, 2005
Submitted
November 29, 2005
Operation
General aviation
Aircraft
N439PW
Make and model
Beech C90A
Aircraft serial
LJ1589
Engine
Pwa PT6*
Part
Brace
Part number
508102503
Condition
Corroded
Location
Mlg Strut
Part time
1,160 hours
Component
Main Gear Strut · Beech
Component part number
908100391
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

DURING INITIAL 6-YEAR/8000 CYCLE INSPECTION OF MAIN GEAR ASSY FOUND INTERNAL SURFACE OF UPPER BRACE PITTED AND CORRODED AT AREA IN CONTACT WITH UPPER MAIN GEAR STRUT. CORROSION APPEARS UNUSUAL FOR A CLEAN, NEWER, LOW-TIME AIRCRAFT THAT IS HANGARED IN A NON SALT-AIR TYPE ENVIRONMENT. UPPER BRACE ASSY SHOULD BE ASSEMBLED TO STRUT CYCLINDER WITH CORROSION PREVENTION COMPOUND AT ASSEMBLY IAW COMPONENT MM SUSPECT CORROSION PREVENTION COMPOUND NOT ADEQUATELY APPLIED AT INITIAL ASSEMBLY. (K)

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