Service difficulty report · Fitting · Boeing 747481F

Difficulty date
September 25, 2026
Submitted
September 28, 2026
Operation
Air carrier
Aircraft
N404KZ
Make and model
Boeing 747481F
Aircraft serial
34283
Aircraft time
7,228,621 hours, 13,326 cycles
Part
Fitting
Part number
65B1059555
Condition
Corroded
Location
Zone 100
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

DURING THE REMOVAL OF THE RH BODY GEAR AND THE 4 BOLTS THAT HOLD THE INBOARD TRUNNION BEARING, FOUND THE LOWER BEARING CAP WITH FRETTING CORROSION IN THE INBOARD SIDE.(<P>ACCOMPLISHED MAJOR REPAIR/REPLACEMENT OF RH BODY LANDING GEAR LOWER BEARING CAP DUE TO THE CAP EXCEEDING THE CORROSION DAMAGE LIMITS. A BRAND-NEW CAP FITTING, P/N 65B10595-55, AND NEW BUSHINGS, P/N 63B0047-1470, WERE PURCHASED FROM BOEING AND REWORKED/OVERSIZED IAW SRM 53-40-90-2R-1 REPAIR 1 DETAIL IV. WORK WAS ACCOMPLISHED WITH NO DEVIATIONS, DOCUMENTED UNDER NON-ROUTINE #00062. NO FURTHER DEFECTS NOTED.</P>)