Service difficulty report · Pressure Panel · Boeing 747230B

Difficulty date
November 14, 2002
Submitted
December 16, 2002
Operation
Air carrier
Aircraft
N507MC
Make and model
Boeing 747230B
Aircraft serial
21380
Part
Pressure Panel
Condition
Cracked
Location
Fuselage
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, FOUND FORWARD PRESSURE DECK SKIN CRACKED TWO PLACES STATION 140 AT RBL 34 AND RBL 43 NEAR WL 215. CRACK LENGTH WAS .025 INCH AT EACH LOCATION FROM EXISTING FASTENER HOLES. CRACKED AREAS TRIMMED AWAY. PERFORMED EC INSPECTION OF CUT OUT AREAS TO ENSURE NO CRACKS. NO CRACKS FOUND. FABRICATED REPAIR DOUBLERS FOR FORWARD AND AFT SIDES OF PRESSURE WEB. INSTALLED DOUBLERS IAW SRM 51-30-05. (M)