Service difficulty report · Box Beam · Boeing 757251

Difficulty date
March 10, 2011
Submitted
March 11, 2011
Operation
Air carrier
Aircraft
N521US
Make and model
Boeing 757251
Aircraft serial
23209
Aircraft time
77,302 hours, 32,235 cycles
Part
Box Beam
Condition
Corroded
Location
Fuselage
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

AT RBL 41 BET STA 324 TO STA 345 BOX BEAM HAS CORROSION AS MARKED. BLENDED AREA PER SRM 51-10-02, FOUND TO BE OUT OF LIMITS IAW SRM 53-00-51, FIG 101. REMOVED AND REPLACED BEAM BOX IAW SRM 51-40-02, SRM 51-40-05. PART FABRICATED ON TRAVELER T11/873823 MAT. BAC1508-238 P/N 141N5161-13, BATCH 0001962670.