SDR UIEA2019082105241

Service difficulty report · Support Web · Boeing 747422

Difficulty date: August 28, 2019
Submitted: September 3, 2019
Operation: Air carrier
Aircraft: N480MC
Make and model: Boeing 747422
Aircraft serial: 28812
Aircraft time: 75,274 hours, 8,388 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Support Web
Part number: 65B1075038
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

FX - SUPPORT WEB BELOW CENTER TANK, UPPER CHORD AT STA 1241, RBL 104, FOUND CRACKED. UPPER CHORD BELOW CENTER TANK AT STA 1241, RBL 104, REMOVED AND DISCARDED AS PER SRM 51-40-02. FABRICATED THE UPPER CHORD, 65B10750-38 PER DWG AND FASTENER INSTALLED AS PER SRM 51-40-02.