Service difficulty report · Flap Track · Boeing 74747UF

Difficulty date
May 23, 2026
Submitted
May 27, 2026
Operation
Air carrier
Aircraft
N477MC
Make and model
Boeing 74747UF
Aircraft serial
29255
Aircraft time
108,821 hours, 19,065 cycles
Part
Flap Track
Condition
Corroded
Location
Zone 600
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

RHW #5 FLAP TRACK UPPER SURFACE CORROSION AT BEARING PLATE CONTACK AREA(<P>CORROSION REMOVED AND REPAIRED AS PER RI-57-22-18221 REV B. NO FURTHER DEFECTS NOTED</P>)

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