SDR UIEA2012012300022

Service difficulty report · Skin · Boeing 74747UF

Difficulty date: January 21, 2012
Submitted: January 23, 2012
Operation: Air carrier
Aircraft: N412MC
Make and model: Boeing 74747UF
Aircraft serial: 30559
Aircraft time: 52,655 hours, 7,886 cycles
System (JASC): 5730 · Wing, Plate/Skin
Part: Skin
Condition: Cracked
Location: Rt 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

DURING A-CHECK INSPECTION, MX FOUND DAMAGE TO THE RT WING ILES 750 - UPPER FIXED LEADING PANEL CRACK, MEASURING 43.0" IN LENGTH; THE DAMAGE EXCEEDS THE LIMITS OF THE SRM 57-41-01, FIG 101 IAW SRM 51-70-02. ALLOWABLE DAMAGE GENERAL. PERFORMED A TIME LIMITED REPAIR.

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