SDR UIEA200700011

Service difficulty report · Skin · Boeing 7472D7B

Difficulty date: January 22, 2007
Submitted: February 2, 2007
Operation: Air carrier
Aircraft: N527MC
Make and model: Boeing 7472D7B
Aircraft serial: 22471
Aircraft time: 95,099 hours, 19,082 cycles
System (JASC): 5730 · Wing, Plate/Skin
Part: Skin
Condition: Cracked
Location: Lt Wing
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

LT WING, UPPER SURFACE, TRAILING EDGE PANEL, AFT OF REAR SPAR, WBL 445 IS CRACKED AROUND FASTENER HOLE. ACCOMPLISHED PERMANENT REPAIR AS PER B747-200 SRM 51-40-09 FIG 2, SHEETS 1 THRU 5. REPAIR AREA IS 4.0 INCH BY 4.0 INCH ALSO, REFERENCE ATLAS AIR EO NR 4757A339.

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