SDR UPS03440937

Service difficulty report · Pressure Panel · Boeing 747123

Difficulty date: June 20, 2003
Submitted: July 7, 2003
Operation: Air carrier
Aircraft: N675UP
Make and model: Boeing 747123
Aircraft serial: 20390
Aircraft time: 71,055 hours, 20,633 cycles
System (JASC): 5312 · Fuselage Main, Bulkhead
Part: Pressure Panel
Condition: Corroded
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

INSPECTION TYPE:C RT BLG W/W PRESSURE DECK WEB CORRODED CRACK AT FS 1436-1438 RBL 112-114. PRESSURE WEB REPLACED IAW SRM 51-10-01 PG 8 DUE TO COR CRACK 1 INCH X 1 INCH AND THROUGH THE WHOLE THICKNESS EXCEEDED SRM 53-10-01 FIG 1 LIMITATION.