SDR DALA12014745653

Service difficulty report · Floor Support · Boeing 757251

Difficulty date: November 30, 2012
Submitted: December 4, 2012
Operation: Air carrier
Aircraft: N553NW
Make and model: Boeing 757251
Aircraft serial: 26500
Aircraft time: 33,653 hours, 13,612 cycles
System (JASC): 5321 · Fuselage Floor Panel
Part: Floor Support
Condition: Corroded
Location: Bs 1510
Stage of operation: IN
How discovered: O
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

CORROSION ON AFT CARGO FLOOR SUPPORT UNDER NUT PLATE AT BS 1510. LBL 2.90. REMOVED CORROSION IAW SRM 53-00-53, FIG 101. ORIGINAL MATERIAL THICKNESS IS .063" IAW SRM 53-60-53, FIG 1. REMAINING MATERIAL IS .049" IAW NDTM PT6, 51-00-11, NO CRACK NOTED AT BLENDED AREA, FABRICATED ANGLE, TREATED AND PRIMED AND INSTALLED ANGLE IAW EA SA41410-7(C), & SRM 51-20-01 PG 37 &27.