Service difficulty report · Floor Panel · Boeing 7377H4

Difficulty date
May 3, 2022
Submitted
June 9, 2022
Operation
Air carrier
Aircraft
N477WN
Make and model
Boeing 7377H4
Aircraft serial
33988
Aircraft time
60,414 hours, 35,826 cycles
Part
Floor Panel
Part number
221GF
Condition
Broken
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

FWD CABIN FLOOR PANEL 221GF FWD O/B TANG IS BROKEN / REMOVED DAMAGED FACE SHEETS ON UPPER; AND LOWER SURFACES AT FWD O/B TANG; REMOVED DAMAGED HONEYCOMB CORE; CLEANED IAW SRM 53-00-50-2R-6 PAR 3A;C-E.;FABRICATED CORE PLUG OUT OF BMS 8-124 CL4 TY5 GR9 LOT#1287137 HONEYCOMB CORE; FABRICATED REPAIR PLIES OUT OF BMS 9-3 ST 1581 LOT#1393735-8 IAW SRM 53-00-50-2R-6 PAR 3F;G(1) OK TO INSTALL CORE PLUG.;[08] INSTALLED REPAIR PARTS USING BMS 8-201 TY IV LOT#1486957-3; AND BMS 5-28 TY 19 LOT#AK2AP8108K; VACUUM BAGGED; CHECKED FOR LEAKS USING PRESSURE GAGE ID:ATS2441 CALIBRATION DUE DATE:07/2022 IAW SRM 53-00-50-2R-6 PAR 3G(1);H(1)CURED REPAIR PARTS USING THERMOMETER ID:ATS2209 CALIBRATION DUE DATE:10/2022; UNBAGGED; SANDED CORE PLUG SMOOTH WITH LOWER SURFACE FACE SHEET; CLEANED IAW SRM 53-00-50-2R-6 PAR 3I(1)-J.;[1FABRICATED LOWER SURFACE REPAIR PLIES USING BMS 9-3 ST 1581 LOT#1393735-8 IAW SRM 53-00-50-2R-6 PAR 3K(1)] INSTALLED REPAIR PLIES USING BMS 8-201 TY IV LOT#1486957-3M VACUUM BAGGED; CHECKED FOR LEAKS USING PRESSURE GAGE ID:ATS2583 CALIBRATION DUE DATE:02/2023 IAW SRM 53-00-60-2R-6 PAR 3K(1);L(1).CURED REPAIR PLIES USING THERMOMETER ID: ATS2209 CAL DUE: 10/2022 AND VACUUM GAUGE ID:ATS2583 CALIBRATION DUE DATE:02/2023. REMOVED VACUUM BAG AND TRIMMED REPAIR EDGES. IAW SRM 53-00-50-2R-6 PARAGRAPH 3.M(1).FWD CABIN FLOOR PANEL 221GF WITH BROKEN O/B TANG WAS REPAIRED IAW SRM 53-00-50-2R-6

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