Service difficulty report · Stiffener · Boeing 747409F

Difficulty date
September 11, 2026
Submitted
September 11, 2026
Operation
Air carrier
Aircraft
N438GT
Make and model
Boeing 747409F
Aircraft serial
30766
Aircraft time
97,028 hours, 17,686 cycles
Part
Stiffener
Part number
65B0366335
Condition
Corroded
Location
Zone 300
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

CORRODED STRUCTURE, LT HORIZONTAL STAB INTERNAL ELEV STA 256.82 AREA. REMOVED DAMAGED PARTS IAW SRM 51-40-02-0G-0, REV 107. FABRICATED NEW PARTS IAW EI T2026A55M-1790, REV 1, & WS 60655. INSTALLED FABRICATED PARTS IAW SRM 51-40-02-0G-0, REV 107, & DWG 65B03663, SH 2, REV J, & DWG 65B03641, SH 20, REV A. JOB COMPLETED AND CONDITION CHKD NORMAL.