Service difficulty report · Sill · Boeing 7374B7

Difficulty date
December 1, 2009
Submitted
December 18, 2009
Operation
Air carrier
Aircraft
N450UW
Make and model
Boeing 7374B7
Aircraft serial
24933
Aircraft time
51,561 hours, 34,160 cycles
Part
Sill
Part number
655287873
Condition
Corroded
Location
Fuselage
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

SAL - Q4 - MAJOR REPAIR - CORROSION ON WEB BETWEEN BS 947.5 TO BS 986.5, WL 208.1 ON LOWER SURFACE OF AFT ENTRY DOOR SILL AREA. REPLACED WEB BETWEEN BS 947.5 TO BS 986.5, WL 208.1 ON LOWER SURFACE OF AFT ENTRY DOOR SILL AREA IAW B737 SRM 51-10-02 & 51-40-02.

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