Service difficulty report · Floorbeam · Boeing 757251

Difficulty date
August 31, 2010
Submitted
October 12, 2010
Operation
Air carrier
Aircraft
N522US
Make and model
Boeing 757251
Aircraft serial
23616
Aircraft time
66,941 hours, 27,518 cycles
Engine
Pwa PW2037
Part
Floorbeam
Condition
Corroded
Location
Bs 377
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

CORROSION ON CABIN FLOORBEAM STA 377,BL'0' TO LBL18 AND AT RBL13. RII: Y BLENDED AREA ORG .125 L=3" X W=1.2" X D=.035 REMAINING .090 OUT OF LIMITS IAW SRM 53-00-51, FIG 101 SHEET 1,2,3 DETAIL II,III. REMOVED SPLICES AT STA 377 RBL32 & LBL34 IAW SRM 51-40-02. REMOVED 'T' CORD AT STA 377 RBL32 TO LBL34 IAW SRM51-40-02. FABRICATED "T" CORD & SPLICES AT RBL32 & LBL34, TREATED & PRIMED IAW SRM 51-20-01. TOP COATED "T" CORD & SPLICES IAW AMM 53-01-02. INSTALLED "T" CORD & SPLICES & STRAP IAW SRM 53-00-51 FIG 201. RII COMPLETED BY SAN 280957 MAE QC 110.