Service difficulty report · Floor Panel · Boeing 7378H4

Difficulty date
August 3, 2022
Submitted
August 24, 2022
Operation
Air carrier
Aircraft
N8656B
Make and model
Boeing 7378H4
Aircraft serial
42530
Aircraft time
24,629 hours, 11,108 cycles
Part
Floor Panel
Part number
232DF
Condition
Pulled
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

FLOOR PANEL 232DF UPPER SKIN HAS PULLED STRANDS ALONG THE AFT EDGE. (MARKED) / [01] IDENTIFIED PANEL 232DF IAW SRM 53-00-50-0I-1 TABLE 3 FIG 3.<BR><BR>DAMAGE NOTED IS OUT OF ALLOWABLE DAMAGE LIMITS IAW SRM 53-00-50-1A-1 PARA 4B OK TO POT EXPOSED CORE IAW SRM 53-00-50-2R-1 PARA 3C-F;[02] VALIDATED APPLICABILITY OF SRM 53-00-50-2R-1.;[03] INSPECTED AND VERIFIED CORRECTIVE ACTIONS 1 AND 2.;[04] APPLIES POTTING BMS5-28 TYPE 19 LOT#AK2DP3091K TO EXPOSED CORE; CURED USING HEAT LAMP AND THERMOMETER ATS2208 CAL DUE DATE 10/2022 THEN SANDED FLUSH WITH INITIAL SURFACE AND CLEANED REPAIR AREA IAW SRM 53-00-50-2R-1 PARA 3G-J;[05] FABRICATED REPAIR PLIES FROM BMS9-3 H2 LOT#1493221-1; OK TO INSTALL IAW SRM 53-00-50-2R-1 PARA 3K;[06] INSPECTED AND VERIFIED CORRECTIVE ACTION 5. OKAY TO INSTALL REPAIR PLIES PER SRM 53-00-50-2R-1.<BR><BR>VERIFIED MEASUREMENTS TABLE.;[07] INSTALLED REPAIR PLIES USING BMS8-201 TYPE 3 LOT#1482288-1; VACUUM BAGGED; CHECKED FOR LEAKS; LEAK CHECKED GOOD USING VACUUM GAUGE ATS2107 CAL DUE DATE 09/2022 IAW SRM 53-00-50-2R-1 PARA 3K-L;[08] INSPECTED AND VERIFIED CORRECTIVE ACTION 7. 5X5 LEAK TEST PASSED PER SRM 53-00-50-2R-1.;[09] CURED; UNBAGGED AND SANDED REPAIR PLIES; LOCATED AND INSTALLED 21 THROUGH INSERTS USINGS BMS5-107 LOT#AK1KP9159K AND CURED IAW SRM 53-00-50-2R-1 PARA 3M-N<BR><BR>USED THERMOMETER ATS2208 CAL DUE DATE 10/2022;[10] FINAL INSPECTION. JOB COMPLETE PER SRM 53-00-50-2R-1.

More about the Boeing 737-8H4