Service difficulty report · Floor Support · Boeing 7377H4

Difficulty date
July 14, 2022
Submitted
August 23, 2022
Operation
Air carrier
Aircraft
N950WN
Make and model
Boeing 7377H4
Aircraft serial
36664
Aircraft time
39,351 hours, 23,848 cycles
Part
Floor Support
Condition
Cracked
Location
Cabin Floor
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

FAD CABIN FLOOR INTERCOSTAL SUPPORT IS CRACKED B/S 278-294 ONE INCH LEFT OF CENTER LINE / [01] REMOVED CABIN FLOOR INTERCOSTAL SUPPORT IS CRACKED B/S 278-294 ONE INCH LEFT OF CENTER LINE IN REF SRM 51-40-02-0G-0;[02] LOCATED AND DRILLED CABIN FLOOR INTERCOSTAL SUPPORT IS CRACKED B/S 278-294 ONE INCH LEFT OF CENTER LINE IN REF SRM 51-40-02-0G-0;[03] ENTER IN ERROR STEP #1 REMOVED CABIN FLOOR INTERCOSTAL SUPPORT IS CRACK B/S 278-294 ONE INCH LEFT OF CENTER LINE IN REF SRM 51-40-02-0G-0;[04] ENTER IN ERROR STEP #2 LOCATED AND DRILLED CABIN FLOOR INTERCOSTAL SUPPORT IS CRACK B/S 278-294 ONE INCH LEFT OF CENTER LINE IN REF SRM 51-40-02-0G-0;[05] ENTER IN ERROR STEPS 1-4 REMOVED CABIN FLOOR SUPPORT B/S 278-294 ONE INCH LEFT OF CENTER LINE IN REF SRM 51-40-02-0G-0;[06] LOCATED AND DRILLED CABIN FLOOR INTERCOSTAL SUPPORT B/S 278-294 ONE INCH LEFT OF CENTER LINE IN REF SRM 51-40-02-0G-0;[07] VERIFIED STEP # 6;[08] OK TO INSTALL NEW INTERCOSTAL;[09] OK TO TREAT AND PRIME BEFORE INSTALLATION;[10] TREEATED AND APPLIED PRIME IN REF SRM 51-20-01-0G-0;[11] VERIFIED STEP. 10;[12] INSTALLED NEW CABIN FLOOR SUPPORT AT BS 278-294 LBL 1';IN REF SRM 51-40-02-0G-0 AND DW # 141A5400;[13] NOTE: P/N REMOVED 141A5410-3;[14] VERIFIED. STEP 10;11;12; AND 13;[15] VERIFIED INSTALLATION

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