SDR DALA2016071005229

Service difficulty report · Floor Support · Boeing 757232

Difficulty date: July 9, 2016
Submitted: July 12, 2016
Operation: Air carrier
Aircraft: N661DN
Make and model: Boeing 757232
Aircraft serial: 24972
Aircraft time: 80,676 hours, 36,767 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Floor Support
Condition: Corroded
Location: Bs 701-720
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

MAIN CABIN , BS 701-720 RBL 64, FLOOR SUPPORT CHANNEL HAS CORROSION . REMOVED CORROSION IAW SRM 51-10-02. 100% MATERIAL LOSS IAW SRM 53-00-51 FIG 101. REMOVED FLOOR SUPPORT IAW SRM 51-40-02. FORMED NEW SUPPORT IAW DWG 143N5400 REV G. HEAT TREATED NEW FLOOR SUPPORT IAW 5602 & FAS 0119 REV O. FABRICATED NEW FLOOR SUPPORT. HEAT TREATED IAW DWG 143N5400 REV G. TREATED PRIMED & TOPCOATED IAW SRM 51-20-01 & AMM 51-21-00-377-001. INSTALLED NEW FLOOR SUPPORT IAW SRM 51-40-02.