Service difficulty report · Support · Boeing 7377H4

Difficulty date
February 9, 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
Support
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

FLOOR SUPPORT HAS A CRACK BS 540 LBL 44<[01] VERIFIED APPLICABILITY NOT ALLOWABLE ITEMS THAT DO NOT HAVE ENTRIES ARE CALLEDREPAIRABLE BY REPLACEMENT IAW SRM 51-10-02 STEP 9C;[02] REMOVED FLOOR SUPPORT AT BS 540 LBL 25 TO LBL45 IAW SRM 51-40-02;[03] RECEIVED NEW FLOOR SUPPORT AT BS 540 LBL25 TO LBL45 P/N 143A5240-32 PO#905537. LOCATED AND DRILLED IAW SRM 51-40-05 AND DWG 143A5240.<BR>OK TO INSTALL;[04] VERIFIED CORRECTIVE ACTION ITEM 3; OK TO INSTALL.;[05] INSTALLED FLOOR SUPPORT AT BS 540 LBL25 - LBL45 IAW SRM 51-40-02 AND DWG 143A0060;[06] VERIFIED CORRECTIVE ACTION 5 AND THE MEASUREMENT TABLE.

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