Service difficulty report · Sill · Boeing 747451

Difficulty date
December 4, 2007
Submitted
December 20, 2007
Operation
Air carrier
Aircraft
N667US
Make and model
Boeing 747451
Aircraft serial
24222
Aircraft time
76,610 hours, 9,342 cycles
Part
Sill
Condition
Corroded
Location
Bs 1990
Stage of operation
IN
How discovered
9
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

DURING "M" CHECK, FOUND CORROSION THE UNDERSIDE OF OUTBOARD FLANGE OF BULK CARGO LOWER MAIN SILL CHORD AT BS 1990. REPAIRED PER EA 63-211345.