Service difficulty report · Shear Web · Boeing 75724APF

Difficulty date
August 19, 2011
Submitted
September 9, 2011
Operation
Air carrier
Aircraft
N432UP
Make and model
Boeing 75724APF
Aircraft serial
25463
Aircraft time
19,529 hours, 13,465 cycles
Part
Shear Web
Part number
143N875047
Condition
Corroded
Location
Bs 470 Lbl56
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

INSPECTION TYPE:C-CHECK, MAIN CARGO HAS CORROSION ON SHEAR WEB UPPER SURFACE BS 470, LBL 56. REMOVED CORROSION ORIGINAL THICKNESS .063 LOSS,.002 REMAINING .061 THERE IS NO SRM LIMITS FOR THIS AREA PERFORMED REQUIRED INSPECTIONS, TREATED, PRIMED, PAINTED AND CIC'D AREA IAW EA 111091 EO B757- 5310-44145-A, STA 470, LBL56 AT MAIN CARGO DOOR FLOOR WEB.

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