SDR DALA1106255530

Service difficulty report · Floor Support · Boeing 757251

Difficulty date: January 10, 2011
Submitted: January 27, 2011
Operation: Air carrier
Aircraft: N530US
Make and model: Boeing 757251
Aircraft serial: 23845
Aircraft time: 73,039 hours, 29,784 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Floor Support
Condition: Corroded
Location: Bs 377-440
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

CREASE BEAM TO FLOOR TRANSITION ANGLE HAS AREAS OF CORROSION-STA 377-440, LBL 63. REMOVED CORROSION FROM FLOOR TRANSITION ANGLE STA 377 TO STA 440, LBL 63, FOUND OUT OF LIMITS, REMOVED FLOOR TRANSITION ANGLE SECTION FROM STA 310.5 TO STA 430 AND ANOTHER SECTION FROM STA 430 TO STA 450, LBL 63. REPLACED BOTH SECTIONS WITH EXTRUSION IAW DWG NR140N0504, REV J, SRM 53-00-01, FIG 101, AND SRM 51-40-02, PG 7, PARA 7D.