Service difficulty report · Seal · Boeing 7478F

Difficulty date
September 27, 2026
Submitted
October 7, 2026
Operation
Air carrier
Aircraft
N634UP
Make and model
Boeing 7478F
Aircraft serial
37564
Aircraft time
37,769 hours, 5,605 cycles
Part
Seal
Part number
114U60129
Condition
Broken
Location
Zone 500 Flap
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

BROKEN-MOLDING SEAL, LT WING NR 1,FLAP EXTERNAL SKIN MOLDING SEAL AREA. REMOVE THE RAIN EROSION SHIELDS AND CLEAN. APPLY THE SEALANT TO REPAIR AREA CURED AT 70F FOR 20 HOURS IAW SRM 57-43-02-2R-4 REV.49 REFER TO SOPM 20-50-12 REV. 160.

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