Service difficulty report · Floor Panel · Boeing 7377H4

Difficulty date
August 18, 2022
Submitted
September 27, 2022
Operation
Air carrier
Aircraft
N489WN
Make and model
Boeing 7377H4
Aircraft serial
33855
Aircraft time
57,460 hours, 34,246 cycles
Part
Floor Panel
Condition
Frayed
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

CABIN FLOOR PANEL 242RF UPPER SURFACE PLIES FRAYED / [01] IDENTIFIED MATERIAL IAW SRM 53-00-50-0I-1 TABLE 6 FIG 6.<BR>FOUND 2 PUNCTURES TO UPPER SURFACE SKIN PLIES AND 2 AREAS ON LOWER SURFACE WITH CRACKED SKIN PLIES AND DAMAGED CORE.<BR>DAMAGE NOTED IS OUT OF ALLOWALBE DAMAGE LIMITS IAW SRM 53-00-50-1A-1 PARA 4B<BR>REPAIR TO BE ACCOMPLISHED IAW SRM 53-00-50-2R-1<BR><BR>REMOVED 7 THROUGH INSERTS TO FACILITATE REPAIR.<BR>REMOVED DAMAGE AND CLEANED REPAIR AREAS; OK TO POT EXPOSED CORE IAW SRM 53-00-50-2R-1 PARA 4C-F;[07] INSTALLED REPAIR PLIES USING BMS 8-201 TY4 LOT#1496781-4; VACUUM BAGGED; LEAK CHECK GOOD USING VACUUM GAUGE ID:ATS2107 DUE:09/2022 IAW SRM 53-00-50-2R-1 PARA 3.K&L.;[08] INSPECTED AND VERIFIED CORRECTIVE ACTION 7. 5X5 LEAK CHECK PASSED PER SRM 53-00-50-2R-1.;[09] CURED REPAIR PLIES USING THERMOMETER ID:ATS2208 CALIBRATION DUE DATE:10/2022; UNBAGGED; LOCATED; DRILLED; AND UPSIZED ALL INSERT LOCATIONS COVERED BY REPAIRS; INSTALLED 7EA THROUGH INSERTS USING BMS 5-107 LOT#AK1KP9159K; CURED IAW SRM 53-00-50-2R-1 PAR 3M(1);N AND DWG 147A5810-2.<BR><BR>COMPLETED SRM REPAIR 53-00-50-2R-1.

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