Service difficulty report · Floor Panel · Boeing 7377H4

Difficulty date
May 13, 2023
Submitted
June 20, 2023
Operation
Air carrier
Aircraft
N429WN
Make and model
Boeing 7377H4
Aircraft serial
33658
Aircraft time
66,602 hours, 39,316 cycles
Part
Floor Panel
Part number
UNKNOWN
Condition
Pulled
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 PANEL 242CF UPPER SURFACE HAS PULLED STRANDS.<[01] PART/MATERIAL IDENTIFIED PER SRM 53-00-50-0I-1 FIGURE 4 TABLE 4 SECTION 44. <BR>UPPER SURFACE DAMAGE EXCEEDS THE ALLOWABLE LIMITS AS GIVEN IN SRM 53-00-50-1A-1 PARA 4 SECTION. 44.<BR>DAMAGED FLOOR PANEL WILL BE REPLACED IAW SRM 53-00-50-2R-0 PARA 1. A. NOTE:;[02] USING BMS4-23 TYPE II GILFLOOR PANEL MATERIAL LOT 1525675-1 FABRICATED A NEW PANEL TRIMMED & LOCATED INSERT FASTENER HOLES BY BACK DRILLING THROUGH THE DEFECTIVE PANEL & USING THE DWG 144A5810-6 FOR FASTENER LOCATION & IDENTIFICATION. THROUGH INSERTS SL5107A3-410.<BR>INSTALLED THE INSERTS USING BMS5-107 ADHESIVE LOT AK2KP8383K-1 THEN CURED IAW SRM 53-00-50-2R-0 PER FIGURE 213 PAGE 30. REF CAL TOOL THERMOMETER ID ATS2402 CAL DUE 07/2023.<BR>APPLIED THE APPLICABLE PART MARK & INSTALLED BMS8-283 FOAM TAPE PER DWG 144A5810-6 .;[03] VERIFIED CORRECTIVE ACTIONS 1 AND 2<BR><BR>VERIFIED MEASUREMENTS TABLE;[04] UPLOADED CURE SHEET. JOB COMPLETE;[05] VERIFIED CORRECTIVE ACTION 4

More about the Boeing 737-7H4