Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date
August 16, 2023
Submitted
September 11, 2023
Operation
Air carrier
Aircraft
N912WN
Make and model
Boeing 7377H4
Aircraft serial
36621
Aircraft time
50,939 hours, 30,749 cycles
Part
Intercostal
Part number
UNKNOWN
Condition
Cracked
Location
Zn 200 Fus Top
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

CRACKED INTERCOSTAL BS 277-294; RBL 1; WL 208.<[01] UPDATED MEASUREMENTS. UPON FURTHER INVESTIGATION; THERE'S NO ALLOWABLE DAMAGE AND PART WILL BE REPLACE IAW SRM 51-10-02 STEP 9. UPDATED STEPS 1 & 2.;[02] REMOVED AND REPLACED CRACK DAMAGED INTERCOSTAL AT BS277-294 RBL 1 WL 208 IAW SRM 51-40-02-0G-0; SRM 51-40-05-0G-0 AND BOEING DWG 141A5400. COMPLETED STEP 1; VERIFIED ALL STEPS COMPLETE.;[03] FINAL INSPECTION. JOB COMPLETE.

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