Service difficulty report · Keelbeam · Boeing 7374Y0

Difficulty date
May 12, 2015
Submitted
May 12, 2015
Operation
General aviation
Filed by
4AER685B
Aersale Inc
Aircraft
N302MS
Make and model
Boeing 7374Y0
Aircraft serial
24688
Aircraft time
49,194 hours, 29,550 cycles
Part
Keelbeam
Part number
65C32953
Condition
Corroded
Location
Bs 698
Part time
49,194 hours, 29,550 cycles
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

DURING AGING AIRCRAFT INSPECTION, FOUND LEVEL 3 CORROSION ON LT KEEL BEAM LOWER CHORD IN LT MLG WHEEL WELL LBBL 6.5 AT FS 698.42. MAXIMUM DEPTH OF CORROSION 0.1115". ORIGINAL DEPTH OF KEEL BEAM LOWER CHORD CASTING 0.4535".