Service difficulty report · Crease Beam · Boeing 7572Y0

Difficulty date
July 19, 2010
Submitted
July 19, 2010
Operation
Air carrier
Aircraft
N930FD
Make and model
Boeing 7572Y0
Aircraft serial
25240
Aircraft time
57,415 hours, 17,967 cycles
Part
Crease Beam
Part number
143N832854
Condition
Corroded
Location
Bs 660-720
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

RT CREASE BEAM HAS CORROSION AROUND FASTENERS LOWER FACE BS 660 TO BS 680 STG 17R. REMOVED CORROSION INNER CHORD CREASE BEAM IAW SRM 51-10-02. CHECK LIMITS INNER CHORD CREASE BEAM ORIGINAL MATERIAL .100 REMAINING .085 LESS .015. DETAIL 3, FIG 101, PAG. 105 IAW SRM 53-30-13. REMOVED CREASE BEAM IAW 51-40-02. RECEIVED CREASE BEAM INNER CHORD PN 143N8328-54, BATCH 0001860048. LOCATED AND DRILLED IAW 51-40-05. INSTALLED NUT PLATE ON CREASE BEAM IAW 51-40-02. TOP COATED SPLICES BELONGING TO STA 660-724. INSTALLED SPLICES AND INNER CHORD CREASE BEAM IAW SRM 51-40-02. CLASSIFIED AS MAJOR REPAIR.

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