Service difficulty report · Floor Panel · Boeing 7377H4

Difficulty date
April 11, 2023
Submitted
May 18, 2023
Operation
Air carrier
Aircraft
N958WN
Make and model
Boeing 7377H4
Aircraft serial
36673
Aircraft time
38,993 hours, 23,664 cycles
Part
Floor Panel
Condition
Pulled
Location
Zn 200 Fus Top
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 FLOOR PANEL 242UF UPPER SKIN HAS MULTIPLE AREAS OF PULLED STRANDS.<BEYOND ALLOWABLE LIMITS IAW SRM 53-00-50-1A-1 PARA 4. F.REMOVED DAMAGED PLIES ON UPPER FACESHEET IN NUMEROUS LOCATIONS WITH THE LARGEST MEASURING 6' X 5.5'; THEN CLEANED IAW SRM 53-00-50-2R-1 PARA 3. A. AND C. - E. WITH NO MOISTURE OR CONTAMINATION NOTED.;APPLIED BMS5-28 TY19 LOT#AK2JP8366K POTTING COMPOUND TO EXPOSED CORE CELLS THEN SET TO CURE USING HEAT LAMP AND THERMOMETER ID: ATS2209 CAL DUE: 10/2023 IAW SRM 53-00-50-2R-1 PAR.3. G. - H.;CURED POTTING; SANDED FLUSH; CLEANED REPAIR AREA AND FABRICATED REPAIR PLIES FROM BMS9-3 STYLE 1581 H2 LOT NUMBER 1522395-2 INSTALLED PLIES WITH BMS8-201 TYPE III LOT NUMBER 1522301-1; VACUUM BAGGEDVERIFIED CURE COMPLETE; UNBAGGED; TRIMMED PLY EDGES AND RE-DRILLED INSERT HOLES AS NEEDED. ALL IAW SRM 53-00-50-2R-1 PARA 3. M. (1) AND 3. N. <BR> <BR>INSTALLED ALL PREVIOUSLY REMOVED THROUGH INSERTS WITH ADHESIVE BMS 5-107 CLASS 1 LOT# AK2KP8383K AND CURED UNDER HEAT LAMP USING THERMOMETER ID: ATS2209; CAL DUE: 10/2023 TO MONITOR THE TEMPERATURE.<BR><BR>INSTALLED ALL PREVIOUSLY REMOVED BLIND INSERTS WITH ADHESIVE BMS5-28 TY19 LOT#AK2JP8366K AND SET TO CURE UNDER HEAT LAMP USING THERMOMETER ID: ATS2209; CAL DUE: 10/2023 ; TO MONITOR THE TEMPERATURE.<BR><BR> ALL WORK ACCOMPLISHED IAW SRM 53-00-50-2R-1 PARA 3. N. AND BOEING DRAWING 147A5810 SHEET 95. CURED POTTING FOR BLIND INSERTS IAW SRM 53-00-50-2R-1 PARAGRAPH 3.N.

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