SDR DALA13052626812

Service difficulty report · Floor Support · Boeing 757231

Difficulty date: September 24, 2013
Submitted: October 15, 2013
Operation: Air carrier
Aircraft: N717TW
Make and model: Boeing 757231
Aircraft serial: 28485
Aircraft time: 49,435 hours, 13,898 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Floor Support
Condition: Corroded
Location: Bs 1320-1340
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 SUPPORT HAS BROKEN NUTPLATE AND CORROSION UPPER & LOWER SURFACE BS 1320-1340 LBL 16. REMOVED NUT PLATES IAW SRM 51-40-02, PG 3, PARA 5C, AND AFT CARGO FLOOR STRINGER, STA 1320-1340, LBL 16. REMOVED CORROSION IAW SRM 53-00-53, ALLOWABLE DAMAGE 1, DETAIL V, AND E/RA 491157-14MA, REV ORIG. ORIGINAL MATERIAL THICKNESS .063", IAW SRM 53-60-53, FIG 1, DETAIL VII, WITH .046" REMAINING, OUT OF LIMITS IAW SRM 53-00-53. PERMANENT REPAIR INSTALLED IAW AMM 53-87-01-801.