SDR UIEA200700118

Service difficulty report · Skin · Boeing 747243B

Difficulty date: March 2, 2007
Submitted: March 14, 2007
Operation: Air carrier
Aircraft: N540MC
Make and model: Boeing 747243B
Aircraft serial: 22508
Aircraft time: 98,608 hours, 17,063 cycles
System (JASC): 5414 · Nacelle/Pylon, Plate/Skin
Part: Skin
Condition: Cracked
Location: Nr 3 Nacelle
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

NR 3 PYLON TOP SKIN, AFT EDGE, ABOVE LINK FITTING HAS A 0.375 INCH CRACK. TRIMMED OUT SKIN TO REMOVE CRACK AS PER 747 SRM 51-10-01. ACCOMPLISHED HFEC INSPECTION TO VERIFY REMOVAL OF CRACK AS PER 747 NDT MANUAL PAR 6 SECTION 51-00-00 FIG 4. ALSO, REFERENCE ATLAS AIR XEO NR 54-022807.