Service difficulty report · Support · Boeing 7377H4

Difficulty date
March 10, 2023
Submitted
April 18, 2023
Operation
Air carrier
Aircraft
N281WN
Make and model
Boeing 7377H4
Aircraft serial
36528
Aircraft time
51,516 hours, 31,045 cycles
Part
Support
Condition
Corroded
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

CORROSION ON FLOOR SUPPORT AT FWD CABIN BS270+6 LBL11 WL208.<[01] EVALUATED DAMAGE ON FLOOR SUPPORT AT FWD CABIN BS270+6 LBL11 WL208; FOUND TO BE OUT OF LIMITS; DUE NOT LIMITS IN SRM PART WILL BE REPAIRABLE BY REPLACEMENT; IAW SRM 51-10-02-0G-0;[02] REMOVED FLOOR SUPPORT AT FWD CABIN BS270 LBL11 WL208; IAW SRM 51-40-02-0G-0;[03] LOCATED AND DRILLED NEW FLOOR SUPPORT P/N 141A5670Y12 IAW SRM 51-40-05-0G-0 AND DWG 141A5670; OK TO INSTALL;[04] VERIFIED CORRECTIVE ACTION ITEM 1-3; OK TO INSTALL.;[05] INSTALLED NEW FLOOR SUPPORT AT FWD CABIN BS 270 TO BS 277 LBL11 WL208; IAW SRM 51-40-02-0G-0 DWG 141A5600; CARD IS COMPLETED;[06] RII VERIFIED CORRECTIVE ACTION ITEM 5.;[07] VERIFIED CORRECTIVE ACTION ITEMS AND MEASUREMENT FIELDS; CARD COMPLETE.

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