Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date
April 19, 2021
Submitted
May 27, 2021
Operation
Air carrier
Aircraft
N939WN
Make and model
Boeing 7377H4
Aircraft serial
36646
Aircraft time
39,769 hours, 23,903 cycles
Part
Intercostal
Condition
Corroded
Location
Bs 767-787 S25r
Stage of operation
IN
How discovered
9
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

CORROSION WEB - INTERCOSTAL LOCATED BETWEEN BS 787 AND BS 767 S-25R WL154.5 AT AFT CARGO COMPARTMENT / REPLACED WEB INTERCOSTAL AND FASTENER LOC BTW BS747 AND BS767 S-25R WL 154.5 AFT CARGO COMPARTMENT IAW SRM B737-700 51-10-02 ITEM 9 AND DRAWING 146A7502 MATERIAL USED 7075-TO 0.032" BATCH NUMBER:

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