SDR 98ZZZX3397

Service difficulty report · Spar Cap Assy · Beech 1900C

Difficulty date
August 20, 1998
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N45GL
Make and model
Beech 1900C
Aircraft serial
UC45
System (JASC)
5711 · Wing Spar
Part
Spar Cap Assy
Part number
1181000229
Condition
Corroded
Location
Cockpit
Part time
23,613 hours
Stage of operation
IN
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

FOUND CORROSION ON FORWARD SIDE OF MAIN WING SPAR LOWER CAP BOND ASSY. THE AFFECTED AREA IS UNDER THE CABIN FLOOR IN THE CABIN. CORROSION WAS FOUND ON THE FORWARD FACE OF THE SPAR AND WAS DISTRIBUTED IN SMALL AREAS ACROSS SPAR JUST ABOVE THE EDGE OF THE SEALANT THAT IS USED TO SEAL THE SPAR RIVET FLANGE. A SMALL AMOUNT OF PITTING WAS FOUND ON THE HORIZONTAL SURFACE JUST ABOVE AND AFT OF THE FORWARD FACE. DAMAGE WAS DETERMINED TO BE NEGLIGIBLE AFTER CORROSION REMOVAL.

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