Service difficulty report · Skin · Boeing 74744AF

Difficulty date
March 8, 2026
Submitted
March 17, 2026
Operation
Air carrier
Aircraft
N574UP
Make and model
Boeing 74744AF
Aircraft serial
35663
Aircraft time
65,209 hours, 10,162 cycles
Part
Skin
Condition
Cracked
Location
Zone 600 Flap
Component
Flap · Boeing
Component part number
65B02025214A
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

RIGHT WING INBOARD MID FLAP , T/E LOWER SURFACE CRACK. (REPAIR) 3 BOND THE REPAIR PLIES WITH FILM ADHESIVE CURED AT 260°F FOR 130 MINUTES WITH MINIMUM VACUUM OF 22 IN/HG.

More about the Boeing 747-44AF