Service difficulty report · Gusset · 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
Gusset
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 AFT BULKHEAD SUPPORT GUSSET HAS A CRACK AT BS 500D S-19L WL193. MARKED<[01] NO ALLOWABLE DAMAGE PER SRM; PART WILL BE REPAIRED BY REPLACEMENT IAW SRM 51-10-02-0G-0 PARA 9 C.;[02] REMOVED FROM FCB AFT BULKHEAD SUPPORT GUSSET AT STA 500D S-19L WL 193 IAW SRM 51-40-02-0G-0.;[03] VERIFIED CORRECTIVE ACTION 1;2 AND THE MEASUREMENT TABLE.;[04] RECEIVED ON FWD CARGO BAY AFT BULKHEAD NEW SUPPORT GUSSETAT BS 500D S-19L WL 193 P/N 143A9481-6. LOCATED AND DRILLED IAW SRM 51-40-05 AND DWG 143A7902.<BR>OK TO INSTALL;[05] VERIFIED CORRECTIVE ACTION 4.<BR>OK TO INSTALL.;[06] INSTALLED ON FWD CARGO BAY AFT BULKHEAD NEW SUPPORT GUSSET BS 500D S-19L WL 193 IAW SRM 51-40-02 AND DWG 143A7902;[07] VERIFIED CORRECTIVE ACTION 6.

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