Service difficulty report · Floor Panel · Boeing 7377H4

Difficulty date
August 6, 2022
Submitted
August 22, 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
Condition
Misaligned
Location
Fuselage
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

DUE TO REPAIR OF BS 986 FLOORBEAM; AT SPLICE LOCATION;PASSENGER CABIN FLOOR PANEL 242VF HAS 2 EACH INSERTS THAT DOES NOT ALIGN WITH HOLES IN STRUCTURE= FWD EDGE OF PANEL-MARKED / [01] IDENTIFIED PANEL 242VF IAW SRM 53-00-50-0I-1 FIGURE 6 TABLE 6<BR><BR>DAMAGED AREA EXCEEDS ALLOWABLE DAMAGE LIMITS IAW SRM 53-00-50-1A-1 PAR.4 E(2)<BR><BR>DAMAGE IS REPAIRABLE IAW SRM 53-00-50-2R-1<BR><BR>REMOVED (3EA) THROUGH INSERTS TO FACILITATE REPAIR<BR>REMOVED DAMAGE FROM UPPER SURFACE MEASURING 15'X3'; CLEANED; WITH NO CONTAMINATION NOTED IAW SRM 53-00-50-2R-1 PAR.3 A-F 08] RELOCATION OF INSERT HOLES REQUIRES REPAIR TO BOTH SKINS AND CORE REPAIR TO BE ACCOMPLISHED PER SRM 53-00-50-2R-6 <BR><BR>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#1493221-1; OK TO INSTALL IAW SRM 53-00-50-2R-6 PARA 3C-G;[13] 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<BR><BR>USED THERMOMETER ATS2208 CAL DUE DATE 10/2022;[16] INSTALLED REPAIR PLIES USING BMS8-201 TYPE 4 LOT#AK2CP8139K; VACUUM BAGGED; CHECKED FOR LEAKS; LEAK CHECKED GOOD USING VACUUM GAUGE ATS2107 CAL DUE DATE 09/2022 IAW SRM 53-00-50-2R-6 PARA 3K-L;

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