Service difficulty report · Intercostal · Boeing 7377BD

Difficulty date
March 6, 2023
Submitted
March 31, 2023
Operation
Air carrier
Aircraft
N556WN
Make and model
Boeing 7377BD
Aircraft serial
33936
Aircraft time
37,398 hours, 21,958 cycles
Part
Intercostal
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

INTERCOSTAL CRACKED AT CTR HOLE; BS380-400; BL-0; WL 206;<[01] NOT ALLOWABLE DAMAGE FOUND ON SRM PART THAT DO NOT ENTRIES ARE CALLED REPAIRABLE BY REPLACEMENT IAW SRM 51-10-02 STEP 9C;[02] REMOVED INTERCOSTAL ON BS 380-400; BL-0; WL 206 IAW SRM 51-40-02;[03] RECEIVED ON FWD CABIN NEW INTERCOSTAL ON BS380-400; BL-0; WL 206 P/N 143A5410-170. LOCATED AND DRILLED IAW SRM 51-40-05 AND DWG 143A5400.<BR>OK TO INSTALL;[04] VERIFIED CORRECTIVE ACTION 3.;[05] INSTALLED ON FWD CABIN INTERCOSTAL ON BS380-400; BL-0; WL206 IAW SRM 51-40-02 AND DWG 143A5400;[06] UPDATE MEASUREMENT TABLE;[07] VERIFIED CORRECTIVE ACTION 5 AND MEASUREMENT TABLE.

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