Service difficulty report · Flange · Boeing 7378H4

Difficulty date
June 12, 2026
Submitted
July 22, 2026
Operation
Air carrier
Aircraft
N8542Z
Make and model
Boeing 7378H4
Aircraft serial
63581
Aircraft time
29,429 hours, 14,965 cycles
Part
Flange
Condition
Damaged
Location
Zone 600
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 TRAILING EDGE STRUCTURE DEFLECTION CONTROL RIB UPPER FLANGE HAS 2 EA. WORN AND ELONGATED HOLES. CUT AND REMOVED DAMAGE FROM DEFLECTION CONTROL RIB UPPER FLANGE PER SRM 57-51-02-2R-4. PERFORMED HFEC REQUIREMENTS PER NDT PART 6 51-00-00 PROCEDURE 23 AND PROCEDURE 16. NO DEFECTS NOTED. FABRICATED -2 REPAIR FILLER IAW SRM 57-51-02-2R-4. LOCATED, DRILLED AND DEBURRED REPAIR IAW SRM 57-51-02-2R-4. TREATED, PRIMED AND APPLIED ENAMEL FINISH TO -2 REPAIR FILLER AND REPAIR AREA OF DEFLECTION CONTROL RIB UPPER FLANGE IAW SRM 57-51-02-2R-4. INSTALLED REPAIR IAW SRM 57-51-02-2R-4.

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