SDR CALA2017121904539

Service difficulty report · Floor Support · Boeing 757222

Difficulty date: December 19, 2017
Submitted: December 20, 2017
Operation: Air carrier
Aircraft: N597UA
Make and model: Boeing 757222
Aircraft serial: 28750
Aircraft time: 70,435 hours, 18,508 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Floor Support
Part number: 146N544719
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

AFT CARGO FLOOR STR AT LBL 10.45 HAS CORROSION AT 2EA NUTPLATES ON UPPER AND LWR SURFACE, AT STA 1470. ACCOMPLISHED PERMANENT REPAIR AT AFT CARGO FLOOR STR AT STA 1470, LBL 10.45 IAW SRM 53-00-53 REPAIR 1, FIG 201. L=3"W =.5" D=.008" DRAWING NR 146N5390. CORROSION THAT WAS REMOVED DIMENSIONS STATED ABOVE WAS FOUND TO EXCEED LIMITS REF SRM 53-00-53 ALLOWABLE DAMAGE 1, FIG 101, DETAIL V.