Service difficulty report · Floor Panel · Boeing 7377H4

Difficulty date
August 6, 2022
Submitted
August 23, 2022
Operation
Air carrier
Aircraft
N490WN
Make and model
Boeing 7377H4
Aircraft serial
32476
Aircraft time
59,880 hours, 35,571 cycles
Part
Floor Panel
Part number
241ABF
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

PASSENGER CABIN FLOOR PANEL 241ABF HAS 3 EACH INSERTS THAT DOES NOT ALIGN WITH HOLES IN STRUCTURE=R/H SIDE; AFT INBOARD AFT 3 HOLES / REMOVED DAMAGE FROM UPPER SURFACE MEASURING 13'X3' APPLIED BMS5-28 TY19 LOT#AK2DP3091K POTTING COMPOUND TO (3EA) FASTENER HOLES; CURED POTTING UNDER HEAT LAMP USING THERMOMETER ID:ATS2208 DUE:10/2022; SANDED POTTING FLUSH; AND CLEANED IAW SRM 53-00-50-2R-1 PAR.3 G-J;RELOCATION OF INSERT HOLES REQUIRES REPAIR TO BOTH SKINS AND CORE REPAIR TO BE ACCOMPLISHED PER SRM 53-00-50-2R-6 REMOVED POTTING COMPOUND FROM INSERT HOLES; FABRICATED CORE PLUGS FROM BMS8-124 TYPE 5 GRADE 9 LOT#1287137 AND UPPER SURFACE REPAIR PLIES FROM BMS9-3 H2 LOT#1493221 INSTALLED CORE PLUGS USING BMS5-28 TYPE 19 POTTING LOT#AK2DP3091K AND REPAIR PLIES USING BMS8-201 TYPE 4 LOT#AK2CP8139K; VACUUM BAGGED CURED; UNBAGGED AND SANDED REPAIR FLUSH WITH INITIAL SURFACE; CLEANED REPAIR AREA AND FABRICATED REPAIR PLIES FOR LOWER SURFACE FROM BMS9-3 H2 LOT#1493221-1; OK TO INSTALL IAW SRM 53-00-50-2R-6 PARA 3I-K;[16] ITEM #15 USED THERMOMETER ATS2208 CAL DUE DATE 10/2022;INSTALLED REPAIR PLIES USING BMS8-201 TYPE 4 LOT#AK2CP8139K; VACUUM BAGGED;CURED REPAIR PLIES UNDER HEAT LAMP USING THERMOMETER ID:ATS2208 DUE:10/2022; REMOVED VACUUM BAG INSTALLED (3EA) THROUGH INSERTS USING BMS5-107 CL1 LOT#AK1KP9159K; CURED INSERTS UNDER HEAT LAMP USING THERMOMETER ID:ATS2208 DUE:10/2022 IAW SRM 53-00-50-2R-6 PAR.3 N & BOEING DWG 147A5810-88

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