Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date
April 18, 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 494-500a S26r
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 BS494 TO BS500A AT LEVEL STR26R AND RBL21.80 AT FWD CARGO COMPARTMENT / REPLACED WEB-INTERCOSTAL LOC BTW BS494 TO BS500A AT LEVEL STR 26R AND RBL 21.80 AT FWD CARGO COMPARTMEN PART NUMBER USED 143A8126-31 PO:0 IAW B737-700

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