Service difficulty report · Doubler · Boeing 747409

Difficulty date
September 26, 2018
Submitted
October 1, 2018
Operation
Air carrier
Aircraft
N780BA
Make and model
Boeing 747409
Aircraft serial
24310
Aircraft time
83,219 hours, 15,893 cycles
Part
Doubler
Condition
Corroded
Location
Lt Wing
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

CORROSION ON THE DOUBLER OF THE LT WING REAR SPAR FUEL PUMP CUTOUT AT WS 425. ACCOMPLISHED EI T2018A57M-4660 REV 1, OPS CHECK NORMAL.