Service difficulty report · Floor Panel · Boeing 7377H4

Difficulty date
July 26, 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
242UF
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 CABIN FLOOR PANEL 242UF HAS 2 RIPPED OUT INSERTS ALONG THE AFT EDGE. (MARKED) / OUT OF ALLOWABLE DAMAGE LIMITS IAW SRM 53-00-50-1A-1 PARA 4B REMOVED DAMAGE TO 2 FACESHEETS AND CORE AT 2EA INSERT HOLES ON AFT EDGE OF PANEL AND CLEANED REPAIR AREA. FABRICATED CORE PLUGS FROM BMS8-124 CLASS 4 TYPE 5 GRADE 9 LOT#1287137 AND LOWER SURFACE REPAIR PLIES FROM BMS9-3 H2 LOT#1493221-1; INSTALLED CORE PLUGS USING BMS5-28 TYPE 19 LOT#AK2KP3091K AND REPAIR PLIES USING BMS8-201 TYPE 4 LOT#1496781-1; VACUUM BAGGED; CHECKED FOR LEAKS; LEAK CHECKED GOOD USING VACUUM GAUGE ATS2107 CAL DUE DATE 09/2022 AND SET FOR CURE FABRICATED REPAIR PLIES FROM BMS9-3 H2 STYLE 1581 LOT#1493221-1; OK TO INSTALL IAW SRM 53-00-50-2R-6 PARA 3K;[08] INSPECTED AND VERIFIED CORRECTIVE ACTIONS 6 AND 7. OKAY TO INSTALL REPAIR PLIES PER SRM 53-00-50-2R-6.;[09] INSTALLED REPAIR PLIES USING BMS8-201 TYPE 4 LOT#1496781-1; VACUUM BAGGED; CHECKED FOR LEAKS; LEAK CHECKED GOOD USING VACUUM GAUAGE ATS2107 CAL DUE DATE 09/2022 IAW SRM 53-00-50-2R-6 PARA 3K-L;[10] INSPECTED AND VERIFIED CORRECTIVE ACTION 14. 5X5 LEAK CHECK PASSED PER SRM 53-00-50-2R-6.;[11] CURED REPAIR PLIES USING HEAT LAMP CURE IAW SRM 53-00-50-2R-1 PARA 3.M (1); LOCATING AND INSTALLATION OF INSERTS ACCOMPLISHED ON TTG8Q00DUH5R;[14] VERIFIED CORRECTIVE ACTION #11; #12; #13

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