SDR SWAA2026071532933

Service difficulty report · Bushing · Boeing 7378H4

Difficulty date: July 11, 2026
Submitted: July 16, 2026
Operation: Air carrier
Aircraft: N8520Q
Make and model: Boeing 7378H4
Aircraft serial: 42532
Aircraft time: 31,531 hours, 15,803 cycles
System (JASC): 5743 · Wing, Landing Gear Attach Fittings
Part: Bushing
Condition: Corroded
Location: Zone 700
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 MLG FWD TRUNNION SUPPORT FITTING LOWER INBD LUG, OUTER FACE HAS EVIDENCE OF CORROSION. REMOVED AND REPLACED ALL 4 RT MLG FWD TRUNNION BUSHINGS IAW AMM 20-10-02, ALSO REF. E. A. 1-A57-3246. LT OR RR MLG FORWARD TRUNNION FITTING LUG CORROSION REPAIR. REPAIRED PER. EA 1-A57-3246, REV 18. REPAIRED PER. EA 1-A57-3246 REV 18.

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