SDR UPS03440496

Service difficulty report · Support Bracket · Boeing 747121

Difficulty date: April 12, 2003
Submitted: April 30, 2003
Operation: Air carrier
Aircraft: N681UP
Make and model: Boeing 747121
Aircraft serial: 19661
Aircraft time: 100,611 hours, 25,820 cycles
System (JASC): 5314 · Fuselage Main, Keel
Part: Support Bracket
Condition: Corroded
Location: Keelbeam
Stage of operation: IN
How discovered: 9
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

KEELBEAM PANEL SUPPORT BRACKET FOUND SURFACE CORROSION AT STA 1225 LBL 9. SUPPORT BRACKET REINSTALLED AS PER SRM 51-30-2 AND BRACKET REPLACED AS PER SRM 51-10-01 P.8 REFER NRC 6878. CORROSION BLEND OUT 0.040 X 1 X 1 INCHES. EXCEED SRM LIMIT.