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
241ZF
Condition
Damaged
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 241ZF HAS A RIPPED OUT INSERT AT THE AFT I/B CORNER. / REMOVED DAMAGE TO UPPER SURFACE IAW SRM 53-00-50-2R-6 PARA 3.A; 3.C-3.E FOUND ADDITIONAL DAMAGE ADJACENT TO REPAIR FABRICATED UPPER SURFACE REPAIR PLIES FROM BMS9-3 H1581 LOT NUMBER 1493221-1 AND REPAIR CORE PLUGS FROM BMS8-124 CLASS 4; TYPE 5 GRADE 9.0 LOT NUMBER 1287137 IAW SRM 53-00-50-2R-6 PARAGRAPH 3.F AND G.(1).(A INSTALLED UPPER SURFACE PLIES WITH BMS8-201 CLASS III LOT NUMBER AK2EP8210K AND REPAIR CORE PLUGS WITH BMS5-28 TYPE 19 LOT NUMBER AK2DP3091K VACUUM BAGGED AND VERIFIED 5X5 USING VACUUM GAUGE ID: ATS2441 DUE: 08/2023; IAW SRM 53-00-50-2R-6 PARAGRAPH 3.F;G.(1).(B-C) AND H.(1).FABRICATED REPAIR PLIES USING BMS-9-3 ST1581 LOT#1493221-1 IAW SRM 53-00-50-2R-6 PARA 3.I(1); 3.J; 3.K(1).INSTALLED REPAIR PLIES USING BMS 8-201 TYIII LOT#1478739-1; VACUUM BAGGED FOR HEAT LAMP CURE AND COMPLETED SUCCESSFUL BLEED DOWN TEST <BR>IAW SRM 53-00-50-2R-6 PARA 3.K(1) AND 3.L(1).CURED REPAIR USING HEAT LAMP AND THERMOMETER ID:ATS2209 / CAL DUE DATE:10/2022 IAW SRM 53-00-50-2R-6 PARA 3.M(1).;[16] UNBAGGED AND TRIMMED REPAIR IAW SRM 53-00-50-2R-6 PARA 3.M(1).;[17] 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; TO MONITOR TEMPERATURE; WORK PERFORMED IAW SRM 53-00-50-2R-6 PARAGRAPH 3.N AND DRAWING 147A5810 SHEET 98

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