Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date
February 10, 2023
Submitted
March 13, 2023
Operation
Air carrier
Aircraft
N289CT
Make and model
Boeing 7377H4
Aircraft serial
36633
Aircraft time
50,940 hours, 30,659 cycles
Part
Intercostal
Condition
Cracked
Location
Zn 100 Fus Lower
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

FWD CARGO BAY - INTERCOSTAL CLIP HAS A CRACK BS 400+1 LBL 24.5<[01] NOT ALLOWABLE DAMAGE FOUND ON SRM PART DO NOT HAVE ENTRIES ARE CALLED REPAIRABLE BY REPLACEMENT IAW SRM 51-10-02 STEP 9C;[02] REMOVED ON FWD CARGO BAY INTERCOSTAL CLIP BS400 TO BS420 LBL24.5 IAW SRM 51-40-02;[03] RECEIVED ON FWD CARGO BAY -NEW INTERCOSTAL CLIP BS 400+1 LBL24.5 P/N 143A7502-155. LOCATED AND DRILLED IAW SRM 51-40-05 AND DWG 143A7502.<BR>OK TO INSTALL;[04] VERIFIED CORRECTIVE ACTION 3 AND MEASUREMENT TABLE.<BR>OK TO INSTALL.;[05] INSTALLED ON FWD CARGO BAY NEW INTERCOSTAL CLIP BS 400+1 LBL 24.5 IAW SRM 51-40-02 AND DWG 143A7505;[06] VERIFIED CORRECTIVE ACTION 5.

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