Service difficulty report · Frame · Beech 76

Difficulty date
October 31, 2002
Submitted
November 13, 2002
Operation
General aviation
Aircraft
N516MS
Make and model
Beech 76
Aircraft serial
ME166
Engine
Lyc O360*
Part
Frame
Part number
10581002367
Condition
Cracked
Location
Mlg
Part time
6,561 hours
Stage of operation
IN
How discovered
D
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

THE LEFT FRAME WAS NOTED TO HAVE CORROSION PREVENTATIVE OOZING IN THE EXACT AREA OF THE INSPECTION, IN A LINE THAT APPEARED AS A CRACK. THE AREA WAS CLEANED AND A CRACK WAS APPARENT BY USING A GOOD LIGHT AND 10 POWER GLASS. A DYE CHECK OF THE AREA FAILED TO REVEALED THE CRACK. SUSPECT THE CORROSION PREVENTATIVE FILLS THE CRACK AND IS NOT CLEANED OUT BY THE PENETRANT CLEANER SO THE PENETRANT IS NOT ALLOWED TO WORK AS IT IS MEANT TO.

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