SDR UIEA2026041500199

Service difficulty report · Skin · 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
System (JASC): 5753 · Trailing Edge Flaps
Part: Skin
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 I/B T/E FORE FLAP O/B UPPR ACC PNL INTERNAL SURFACE EDGE SEVERAL AREA FOUND CORROSION(<P>CORROSION REMOVED AS PER SRM 51-10-02 AND REPROTECTED AS PER SRM 51-20-01, REWORK AREA MEASURED ORG: 0.105", L: 13" X W: 1" X D: 0.002", WITHIN SRM 57-53-01-1A-0 ALLOWABLE DAMAGE GENERAL FIG 101 LIMITS. NO FURTHER DEFECTS NOTED</P>)

More about the Boeing 747-47UF