SDR UIEA200800149

Service difficulty report · Skin · Boeing 7472D3B

Difficulty date: April 15, 2008
Submitted: April 16, 2008
Operation: Air carrier
Aircraft: N505MC
Make and model: Boeing 7472D3B
Aircraft serial: 21251
Aircraft time: 97,938 hours, 21,405 cycles
System (JASC): 5210 · Passenger/Crew Doors
Part: Skin
Condition: Cracked
Location: Pax Door
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

MAIN ENTRY DOOR L-1 EXTERIOR SKIN, UPPER HINGE CUT-OUT PREVIOUS DOUBLER REPAIR, LOWER RADIUS CORNER IS CRACKED. VERIFIED CRACK WITH HFEC AS PER B747-200 NDT MANUAL PART 6, 51-00-00 FIG 23. STOPPED DRILLED CRACK AND ACCOMPLISHED PERMANENT REPAIRS AS PER B747 SERVICE BULLETIN 747-52-2144. ALSO, REFERENCE ATLAS AIR EO NR 4752A143.

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