Service difficulty report · Floor Panel · Boeing 7377K9

Difficulty date
August 26, 2022
Submitted
September 21, 2022
Operation
Air carrier
Aircraft
N7878A
Make and model
Boeing 7377K9
Aircraft serial
34320
Aircraft time
52,141 hours, 25,914 cycles
Part
Floor Panel
Part number
241YF
Condition
Pulled
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

AFT FLOOR PANEL 241YF UPPER SURFACE HAS PULLED STRANDS. / [01] IDENTIFIED PANEL IAW SRM 53-00-50-0I-1 FIG 6 TABLE 6.<BR><BR>DAMAGE IS BEYOND ALLOWABLE DAMAGE LIMITS IAW SRM 53-00-50-1A-1 PARA 4.F.<BR><BR>DAMAGE TO BE REPAIRED IAW SRM 53-00-50-2R-1 AS PER SRM 53-00-50-2R-0 PARA 2 TABLE 201.<BR><BR>REMOVED INSERTS (8EA) FROM PANEL IAW SRM 53-00-50-2R-1 PARA 3.B REMOVED DAMAGED PLIES ON UPPER SURFACE IAW SRM 53-00-50-2R-1 PARA 3.A; 3.C; 3.E; & 3.F WITH NO CONTAMINATION NOTED.;[02] VALIDATED APPLICABILITY OF REPAIR TO BE COMPLETED IAW SRM 53-00-50-2R-1.;[03] VERIFIED CORRECTIVE ACTIONS 1 AND 2<BR><BR>VERIFIED MEASUREMENTS TABLE<BR><BR>VALIDATED REPAIR PER SRM 53-00-50-2R-1;[04] FABRICATED REPAIR PLIES FROM BMS9-3 TYPE H2 STYLE 1581 LOT NUMBER 1493221-1 IAW SRM 53-00-50-2R-1 PARAGRAPH 3.K.(1).(A) OK TO INSTALL REPAIR PLIES.;[05] INSPECTED AND VERIFIED CORRECTIVE ACTION 4. OKAY TO INSTALL REPAIR PLIES PER SRM 53-00-50-2R-1.;[06] INSTALLED PLIES WITH BMS8-201 CLASS III LOT NUMBER AK2EP8210K; VACUUM BAGGED AND VERIFIED 5X5 USING VACUUM GAUGE ID: ATS2441 DUE: 08/2023; IAW SRM 53-00-50-2R-1 PARAGRAPH 3.K.(1).(B-C) AND L.(1)SET REPAIR TO CURE USING HOTBONDER ID: NCX000526 DUE: 10/2022 IAW SRM 53-00-50-2R-1 PARAGRAPH 3.M.(1). INSTALLED REMOVED INSERTS WITH BMS5-107 CLASS 1 LOT NUMBER AK1KP9159K RESIN; CURED RESIN UNDER A HEAT LAMP USING THERMOMETER ID: ATS2209 DUE: 10/2022; WORK PERFORMED IAW SRM 53-00-50-2R-1 PARAGRAPH 3.N AND DRAWING 147A5810 SHEET 77

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