SDR UIEA2013020500069

Service difficulty report · Skin · Boeing 74747UF

Difficulty date: January 31, 2013
Submitted: February 6, 2013
Operation: Air carrier
Aircraft: N476MC
Make and model: Boeing 74747UF
Aircraft serial: 29256
Aircraft time: 60,080 hours, 10,360 cycles
System (JASC): 5330 · Fuselage Main, Plate/Skin
Part: Skin
Condition: Cracked
Location: Bs 980 S38l
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 C3/A4 CHECK, WHILE UNDERGOING EO 4453A499 (SB 747-53A2444, REV 2/ AD 2001-22-04) INSPECTION, A CRACK WAS DETECTED IN THE FUSELAGE SKIN AT THE 11 AND 5 O'CLOCK POSITION OF A FASTENER HOLE COMMON TO S38L NEAR BS 980. PERMANENT REPAIR ACCOMPLISHED IAW SRM 53-20-01-2R-2, REPAIR 2, FIGURE 201.

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