Service difficulty report · Fitting · Boeing 7378H4

Difficulty date
December 2, 2025
Submitted
December 29, 2025
Operation
Air carrier
Aircraft
N8511K
Make and model
Boeing 7378H4
Aircraft serial
36670
Aircraft time
29,651 hours, 14,931 cycles
Part
Fitting
Condition
Worn
Location
Zone 500
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

LEFT WING TRAILING EDGE DEFLECTION RIB FITTING UPPER ATTACH POINTS HAS EXCESSIVE WARE AT BOLT HOLES. INSPECTED DEFLECTION CONTROL RIB UPPER TAB AND FOUND TO BE OUT-OF-LIMITS. CUT AND REMOVED DAMAGE ALL WORK IAW PER SRM 57-51-02-1A-1. NO CRACK INDICATIONS FOUND PER NDT PART 6 51-00-00 PROCEDURE 23. FABRICATED REPAIR FILLER -2 PER SRM 57-51-02-2R-4. INSTALLED REPAIR PARTS IAW SRM 57-51-02-2R-4.

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