Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date
March 17, 2020
Submitted
April 20, 2020
Operation
Air carrier
Aircraft
N926WN
Make and model
Boeing 7377H4
Aircraft serial
36629
Aircraft time
40,878 hours, 24,621 cycles
Part
Intercostal
Condition
Corroded
Location
Fuselage
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

***CORROSION*** ON INTERCOSTAL AT MAIN EBAY BS312-BS322 S-23L WL161. MARKED / REMOVED CORROSION - .013' OUT OF .063' ORGINAL THICKNESS; .050' REMAINING THICKNESS - OUT OF LIMITS PER SRM 53-10-15-1A-1. REPLACED WITH NEW INTERCOSTAL PER SRM 51-40-02 AND DRW. 141A8131 AT MAIN E BAY B.S. 312-325; STR 23L; WL 161.

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