Service difficulty report · Frame · Boeing 747243B

Difficulty date
March 26, 2006
Submitted
April 7, 2006
Operation
Air carrier
Aircraft
N540MC
Make and model
Boeing 747243B
Aircraft serial
22508
Aircraft time
96,049 hours, 16,466 cycles
Part
Frame
Condition
Cracked
Location
Bs 480 S12l
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

FUSELAGE FRAME BS 480 LT FOUND WITH 1 CRACKS AT STRINGER 12 CUT OUT. CRACKED FRAME REPAIRED IAW BOEING MSG NR 1-166738303-4 DATED 03 MARCH 06. FABRICATED 2 OFF DOUBLERS MATERIAL 2024-T3 0.063" & 0.032" RESPECTIVELY. FABRICATED 1 OFF CUP MATERIAL 2024-T42 0.050".