SDR DALA1129535531

Service difficulty report · Floorbeam · Boeing 757251

Difficulty date: April 27, 2011
Submitted: April 28, 2011
Operation: Air carrier
Aircraft: N531US
Make and model: Boeing 757251
Aircraft serial: 23846
Aircraft time: 72,678 hours, 29,915 cycles
System (JASC): 5315 · Fuselage Main, Floor Beam
Part: Floorbeam
Condition: Corroded
Location: Bs 345 Rbl 2-50
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

FLOORBEAM UPPER & LWR SURFACE AT STA 345, RBL 2, RBL 50 HAS CORROSION SEVERAL PLACES AS MARKED. BLENDED CORRODED IAW SRM 53-00-51 OUT OF LIMITS CUT FLOORBEAM TOP CAP AT STA 345 IAW SRM 53-00-51, FIG 201, FABRICATED REPAIR PARTS LOCATED & DRILLED REPAIR IAW SRM 51-40-05 TREAT PRIMED & TOP COATED IAW SRM 51-20-01 AND INST REPAIR PARTS & ACCESS IAW SRM 51-40-02 & SRM 53-00-51.