Service difficulty report · Skin · Boeing 747230B

Difficulty date
September 5, 2002
Submitted
October 11, 2002
Operation
Air carrier
Aircraft
N512MC
Make and model
Boeing 747230B
Aircraft serial
21220
Part
Skin
Part number
65B940535
Condition
Cracked
Location
Nr 2 Pylon
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 CURRENT C-CHECK AT SIAEC, FOUND NR 2 PYLON TOP CAP SKIN CRACKED AT NAC STATION 264 INBOARD SIDE. CUTOUT CRACKED SKIN AND DOUBLER. SURFACE CORROSION LEVEL 1 REVEALED TO SANDWICHED STIFFENER. REMOVED AFT SECTION OF STIFFENER FOR CORROSION BLEND REPAIRS. HFEC INSPECTED FOR CRACKS/CORROSION IN TRIMMED AREAS, CUT OUTS AND FASTENER HOLES OF THE REPAIR AREAS. NO CRACKS, CORROSION FOUND. FABRICATED ANGLES, SPLICES, FILLERS AND DOUBLERS. (M)