Service difficulty report · Support · Boeing 7377BD

Difficulty date
March 2, 2023
Submitted
March 30, 2023
Operation
Air carrier
Aircraft
N556WN
Make and model
Boeing 7377BD
Aircraft serial
33936
Aircraft time
37,398 hours, 21,958 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

CRACK ON PASSENGER CABIN FLOOR SUPPORT AT BS 540 RBL 2.<[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 FLOOR SUPPORT ON BS 540 RBL 2 IAW SRM 51-40-02;[03] RECEIVED ON FWD CABIN FLOOR SUPPRT ON BS 540 RBL 2 P/N 143A5240-35. LOCATED AND DRILLED IAW SRM 51-40-05 AND DWG 143A0060.<BR>OK TO INSTALL;[04] VERIFIED CORRECTIVE ACTIONS STEP 3 OK TO INSTALL GIVEN.;[05] INSTALLED NEW FLOOR SUPPORT ON BS 540 RBL 2 P/N 143A5240-35 ON FWD CABIN I.A.W SRM 51-40-02-0G-0 AND DWG 143A0060.;[06] VERIFIED CORRECTIVE ACTIONS STEP 5; AND MEASUREMENTS TABLE.

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