SDR SIMA990777

Service difficulty report · Skin · Saab 340B

Difficulty date
March 18, 1999
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N347SB
Make and model
Saab 340B
Aircraft serial
340B347
Part
Skin
Condition
Corroded
Location
Bs 295
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

ABI - DURING MBV INSPECTION, AN AREA ON TOP FUSELAGE SKIN PANEL FS 295, WAS DISCOVERED TO HAVE CORROSION REMOVED TO DEPTH BEYOND SRM LIMITS. CLEANED AREA WITH MEK AND PERFORMED AN EDDY CURRENT INSPECTION WITH NO CRACK INDICATIONS. FABRICATED A REPAIR DOUBLER FROM ALSH 2024-T3 .050 INCH THICK. CLEANED DOUBLER, APPLIED A PROTECTIVE COAT OF ALODINE AND ONE COAT OF EPOXY PRIMER. APPLIED SEALANT TO THE CONTACT SURFACE OF THE DOUBLER. INSTALLED DOUBLER ON AIRCRAFT. APPLIED PRIMER AND ONE COAT OF TOP COAT TO THE INTERIOR AND EXTERIOR SURFACES. RESTORED PAINT FINISH. WORK DONE IAW SAAB 340 SRM 53-70-10, PAGE 215 AND STANDARD PROCEDURES. (X)

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