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SDR CALA2023021300421

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Service difficulty report · Intercostal · Boeing 757*

FAA SDR system

Difficulty date
February 12, 2023
Submitted
February 13, 2023
Operation
Air carrier
Aircraft
N56859
Make and model
Boeing 757*
Aircraft serial
32818
Aircraft time
54,028 hours, 17,167 cycles
System (JASC)
5100 · Standard Practices/Structures
Part
Intercostal
Part number
146N852256
Condition
Corroded
Location
Sta1470/Str27r
Stage of operation
IN
How discovered
O
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

INTERCOSTAL IS EXFOLIATED CORRODED AT STA 1470, ON THE UPPER SIDE OF STR 27R. BLENDED MATERIAL, 100% MATERIAL LOSS, REPLACED INTERCOSTAL AT STA 1470 STR 27R. IAW BOEING DRAWING 146N8522 REV A, B757 SRM 51-40-02. UPATED TO LOG; REPAIR IS AN SDR NOT A MAJOR REPAIR.