Service difficulty report · Spar · Boeing 74748EF

Difficulty date
October 9, 2026
Submitted
October 10, 2026
Operation
Air carrier
Aircraft
N419MC
Make and model
Boeing 74748EF
Aircraft serial
28367
Aircraft time
121,274 hours, 20,941 cycles
System (JASC)
5711 · Wing Spar
Part
Spar
Condition
Damaged
Location
Zone 500
Stage of operation
IN
How discovered
E
Nature of condition
O
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

DURING NDT LFEC INSPECTION ON LHW REAR SPAR LOWER CHORD AND SKIN AT LANDING GEAR BEAM ATTACHMENT FITTINGS AND TRUNNION FITTINGS (SSID), FOUND 02 EA FASTENERS AT WS 469.8. TRUNNION FITTING SHEAR CLIP AREA LARGER THAN NORMAL(<P >02 FASTENERS ON LHW REAR SPAR LOWER CHORD AND SKIN AT LANDING GEAR BEAM ATTACHMENT FITTINGS AND TRUNNION FITTINGS AT WS 469.8 AREA REWORKED AS PER EN 3529-26 REV. 0. REPAIR CLASSIFIED AS "MAJOR" AND CATEGORIZED AS "CATEGORY B" PERMANENT REPAIR WITH THRESHOLD INSPECTION OF 23,141 TOTAL AIRPLANE FLIGHT CYCLES AND REPEAT INSPECTION INTERVAL OF 2,200 FLIGHT CYCLES AS PER EN 3529-26 REV 0. NO FURTHER DEFECTS NOTED.

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