Service difficulty report · Stiffener · Aerosp ATR42300

Difficulty date
October 13, 2008
Submitted
November 19, 2008
Operation
Air carrier
Aircraft
N917FX
Make and model
Aerosp ATR42300
Aircraft serial
354
Part
Stiffener
Part number
S53174000202
Condition
Corroded
Location
Bulkhead
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

MAJOR REPAIR AND LEVEL 2 CORROSION. FWD BULKHEAD EXTRUDED STIFFENER HAS SURFACE CORROSION AROUND ATTACHMENT RIVETS. CORROSION BLEND-OUT WAS BEYOND ACCEPTABLE LIMITS. FOUND AT COE MAJOR REPAIR AND LEVEL 2 CORROSION. FWD BULKHEAD EXTRUDED STIFFENER HAS SURFACE CORROSION AROUND ATTACHMENT RIVETS. CORROSION BLEND OUT WAS BEYOND ACCEPTABLE LIMITS. BLENDED OUT DAMAGED AREA ON THE VERTICAL STIFFENER AND LEFT AS IS. R&R FASTENERS IN AREA OF CORROSION AND INSPECTED HOLES FOR CRACKS.

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