Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date
March 9, 2021
Submitted
March 31, 2021
Operation
Air carrier
Aircraft
N218WN
Make and model
Boeing 7377H4
Aircraft serial
32489
Aircraft time
53,157 hours, 31,841 cycles
Part
Intercostal
Condition
Cracked
Location
Aft Cargo
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

CRACK WEB-INTERCOSTAL LOCATED BETWEEN BS927 TO BS947.5 AND STR25R AFT CARGO COMPARTMENT. EVALUATED CRACK ON WEB-INTERCOSTAL LOCATED BETWEEN BS 927 TO VS 947.5 AND STR 25R AFT CARGO COMPARTMENT AND NO FOUND ALLOWABLE DAMAGE ON SRM B737-700. FABRICATED WEB-INTER- COSTAL FROM MATERIAL ALUMINUM SHEET 7075-T0/ 0.032'M PO:2020-203301 AND HEAT TREATED AND CONVERTED FROM T0 TO T6 AND REPLACED WEB- INTERCOSTAL IAW B737-700 SRM 51-10-02 ITEM 9 AND DRAWING #147A7500 REV-.

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