SDR UIEA2019082105254

Service difficulty report · Floor Support · 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: Floor Support
Part number: 140U549729
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

M/D - CABIN STA 740 - 760, RBL 65, FLOOR SUPPORT FOUND CRACK, AS MARKED. FLOOR SUPPORT REMOVED IAW SRM 51-40-02. CABIN STA 740 - 760, RBL 65, FLOOR SUPPORT FABRICATED PER DWG 140U5497-29, PL, AND FASTENER INSTALLED AS PER SRM 51-40-02.