Service difficulty report · Sill · Boeing 757

Difficulty date
July 1, 2007
Submitted
July 18, 2007
Operation
Air carrier
Filed by
DU4R141M
AAR Aircraft Services, LLC
Aircraft
N638DL
Make and model
Boeing 757
Aircraft serial
23761
Aircraft time
63,658 hours, 29,652 cycles
Engine
Pwa PW2037
Part
Sill
Part number
146N852257
Condition
Corroded
Location
Bs 1380-1440
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

S/O NR 291043, NR 22641 FOUND HEAVY CORROSION UNDER NUT PLATES IN AFT PIT AT (T) EXTRUSION JUST IB OF C2 DOOR SILL WEB FROM BS 1380 TO BS 1440 S-27R. REPAIRED BY REMOVING AND REPLACING CHORD PN 146N8522-57 AND ANGLE PN 146N8515-8 IAW SRM 53-00-53 AND 51-40-02.