Service difficulty report · Floor Panel · Boeing 7377H4

Difficulty date
April 8, 2023
Submitted
May 17, 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 241YF UPPER FACESHEET HAS AN AREA OF PULLED STRANDS.<OUT OF ALLOWABLE DAMAGE LIMITS IAW SRM 53-00-50-1A-1 PAR. 4. E. & 4. F.PANEL UPPER SURFACE IS REPAIRABLE IAW SRM 53-00-50-2R-1 AS DIRECTED <BR>BY SRM 53-00-50-2R-0 PAR. 2. A. TABLE 201.REMOVED (15EA) INSERTS FROM AREAS (P1; P13 - P23; P10) IAW SRM <BR>53-00-50-2R-0 PAR. 5. S. (1)(A) & 5. S. (1)(B) REMOVED DAMAGED PLIES AND CORE BY 1IN NEAR (P19) AREA AND CLEANED WITH NO CONTAMINATES NOTED IAW SRM 53-00-50-2R-1 PAR. 3. C. - F.REMOVED DAMAGED UPPER FACESHEET PLIES AND CLEANED WITH NO CONTAMINATES NOTED IAW SRM 53-00-50-2R-1 PAR. 3. A. - F.UPDATED MEASUREMENTS TABLE.;PREPARED POTTING COMPOUND USING BMS5-28 TY19 EPOCAST 1619 LOT#<BR>AK2LP8414K AND FILLED OPEN CORE REPAIR AREA IAW SRM 53-00-50-2R-1 <BR>PAR. 3. G.;SET POTTING COMPOUND FOR HEATLAMP CURE MONITORED BY THERMOMETER ID: ATS2209 CAL/DUE: 10/2023; CURED POTTING AND SANDED SMOOTH AND CLEANED IAW SRM<BR>53-00-50-2R-1 PAR. 3. H. - J. FABRICATED REPAIR PLIES USING BMS9-3 TYH2 CL7 ST1581 LOT#1522395-2 IAW SRM 53-00-50-2R-1 PAR. 3. K. INSTALLED REPAIR PLIES USING BMS8-201 LOT#1522301-1; 53-00-50-2R-1 PAR. 3. M. (1);SRM 53-00-50-2R-1 PAR. 3. M. (1). INSTALLED ALL THROUGH INSERTS USING BMS5-107 LOT#AK2KP8383K AND CURED USING HEAT LAMP AND THERMOMETER ATS2208 CAL DUE DATE 10/2023 IAW SRM 53-00-50-2R-1 PARA 3N.

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