SDR UIEA200800021

Service difficulty report · Skin · Boeing 7472D3B

Difficulty date: January 26, 2008
Submitted: February 21, 2008
Operation: Air carrier
Aircraft: N506MC
Make and model: Boeing 7472D3B
Aircraft serial: 21252
Aircraft time: 91,039 hours, 18,903 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 LEADING EDGE LOWER SURFACE, OUTBOARD FUELING DOOR FRAME CUT-OUT HAS A COMPOSITE CRACK AT OUTBOARD SIDE, FORWARD EDGE. PERMANENT REPAIR ACCOMPLISHED AS PER B747-200 SRM 51-40-09 FIG 18 SHEETS 3 AND 5 AND SRM 51-40-12, PREPREG 250 DEGREES F CURE. ALSO, REFERENCE ATLAS AIR EO 4757A414.

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