Service difficulty report · Floor Panel · Boeing 7377H4

Difficulty date
April 29, 2023
Submitted
June 1, 2023
Operation
Air carrier
Aircraft
N961WN
Make and model
Boeing 7377H4
Aircraft serial
36962
Aircraft time
37,902 hours, 23,158 cycles
Part
Floor Panel
Condition
Pulled
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

FLOOR PANEL 242MF UPPER SKIN HAS AREAS OF PULLED STRANDS.<[01] PART/MATERIAL IDENTIFIED PER SRM 53-00-50-0I-1 FIGURE 5 TABLE 5 SECTION 46.UPPER SKIN STRAND DAMAGE EXCEEDS THE ALLOWABLE LIMITS AS GIVEN IN SRM 53-00-50-1A-1. PARA 4. F. <BR>MULTIPLE AREAS OF STRAND DAMAGE REQUIRE PANEL REPLACEMENT. AS GIVEN IN SRM 53-00-50-2R-0 PARA 1. A. NOTE:;[02] USING BMS4-23 TYPE II HONEYCOMB PANEL MATERIAL LOT 1525675-1 FABRICATED A NEW FLOOR PANEL PER DWG 146A5810-465. BACK DRILLED THE INSERT FASTENER HOLES & REAMED TO SIZE. INSTALLED & CURED THE INSERTS USING BMS5-107/EP420 ADHESIVE LOT AK2KP8383K-1 IAW SRM 53-00-50-2R-0 PARA 5. S. PER FIGURE 213-PAGE 30 REF CAL TOOL THERMOMETER ID ATS2192 CAL DUE 08/2023.<BR><BR>APPLIED PART MARK & BMS8-263 DAMPER TAPE PER DWG 146A5810-465;[03] VERIFIED CORRECTIVE ACTIONS 1 & 2.<BR>VERIFIED CURE SHEET.;[04] ATTACHED CURE SHEET TO THIS FAULT RECORD.;[05] VERIFIED CORRECTIVE ACTION 4.;[06] VERIFIED MEASUREMENT TABLE.

More about the Boeing 737-7H4