Service difficulty report · Support Fitting · Boeing 74747UF

Difficulty date
May 15, 2025
Submitted
May 16, 2025
Operation
Air carrier
Aircraft
N409MC
Make and model
Boeing 74747UF
Aircraft serial
30558
Aircraft time
102,016 hours, 16,289 cycles
Part
Support Fitting
Condition
Gouged
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

LH BLG INBOARD TRUNNION VERTICAL SUPPORT FITTING I/B AND O/B SIDE FACE FOUND GOUGE MARK. LH BLG INBOARD TRUNNION VERTICAL SUPPORT FITTING I/B AND O/B SIDE FACE MACHINED AS PER B747-400F SRM 53-40-90 REPAIR 1 REV. 103 AND FOUND WITHIN WORK LIMIT. FOR DETAILS REFER TO EO 4453C541_CS. NO FURTHER DEFECTS NOTED.

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