Service difficulty report · Floor Panel · Boeing 7377H4

Difficulty date
July 29, 2021
Submitted
September 15, 2021
Operation
Air carrier
Aircraft
N447WN
Make and model
Boeing 7377H4
Aircraft serial
33720
Aircraft time
58,733 hours, 34,620 cycles
Part
Floor Panel
Condition
Delaminated
Location
Cabin
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 242VF HAS SEVERAL AREAS OF DELAMINATION ON UPPER AND LOWER SKINS ; / [08] VERIFIED SANDED POTTING COMPOUND AND CORE PLUG FLUSH AND CLEANED. FABRICATED REPAIR PLIES FROM BMS 9-3 TYH2 LOT# 1458851-1 IAW SRM 53-00-50-2R-6 PARA 3.G AND 3.J. AND SRM 53-00-50-2R-1 PARA 3 I.-K. OKAY TO INSTALL REPAIR PLIES.; [09] INSTALLED REPAIR PLIES AND VACUUM BAGGED FOR CURE IAW SRM 53-00-50-2R-1 PARA 3.K.-L. AND 53-00-50-2R-6 PARA G.-H.; [10] CORRECTION FOR CORRECTIVE ACTION 9.<BR><BR>ADDING 'PLIES FABRICATED USING BMS 8-201 TY3 LOT# AK1DP9074K.'; [11] VERIFIED STEPS 9 AND 10; [12] CURED REPAIR PLIES USING A HEAT LAMP IAW SRM 53-00-50-2R-1 PARA 3.M.(1) AND SRM 53-00-50-2R-6 PARA 3.M.(1).<BR><BR>THERMOMETER: ID - ATS2208 S/N - 43300740WS<BR>VACUUM GAUGE: ID - ATS2584 S/N - 5432766772; [13] UNBAGGED FLOOR PANEL 242VF IAW SRM 53-00-50-2R-6 PAR 3M(1). <BR><BR>COMPLETED SRM REPAIR 53-00-50-2R-6.; [14] VERIFIED REPAIR CURE AND UNBAGGING PER SRM 53-00-50-2R-1 AND SRM 53-00-50-2R-6; [15] VERIFIED COMPLETION OF REPAIR TO FLOOR PANEL 242VF PER SRM 53-00-50-2R-6 AND SRM 53-00-50-2R-1; [16] VERIFIED COMPLETION OF REPAIR TO FLOOR PANEL 242VF PER SRM 53-00-50-2R-6 AND SRM 53-00-50-2R-1

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