Service difficulty report · Floor Panel · Boeing 737*

Difficulty date
February 4, 2022
Submitted
March 3, 2022
Operation
Air carrier
Aircraft
N469WN
Make and model
Boeing 737*
Aircraft serial
33859
Aircraft time
59,572 hours, 35,384 cycles
Part
Floor Panel
Part number
241XF
Condition
Pulled
Location
Cabin Floor
Stage of operation
UK
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 PASSENGER CABIN FLOOR PANEL 241XF UPPER SKIN HAS AREAS OF PULLED STRANDS. / [01] IDENTIFIED PART AND MATERIAL ID PER SRM 53-00-50-0I-1 FIG.6; SHT.1; AN TABLE 6. FOUND DAMAGE TO BE OUT OF ALLOWABLE DAMAGE LIMITS PER SRM 53-00-50-1A-1 PAR.4B STEP 2. A REPAIR WILL BE ACCOMPLISHED PER SRM 53-00-50-2R-1.<BR><BR>REMOVED DAMAGED SKIN WITH NO CONTAMINATION NOTED PER SRM 53-00-50-2R-1 PAR.3 STEPS A-C AND E & F.;[02] VALIDATED APPLICABILITY OF SRM 53-00-50-2R-1.;[03] VERIFIED CORRECTIVE ACTIONS 1 AND 2;[04] FABRICATED REPAIR PLIES WITH FIBER GLASS CLOTH BMS 9-3 TYPE H2 STYLE 1581 LOT#1475360-2 PER SRM 53-00-50-2R-1 PAR.3K(1)(A). OK TO INSTALL.;[05] VERIFIED CORRECTIVE ACTION 4. OKAY TO INSTALL PLIES;[06] INSTALLED PLIES WITH BMS 8-201 LOT# 1478412-1; VACUUM BAGGED AND VERIFIED 5X5 USING VACUUM GAUGE ID: ATS2483 S/N: UNKNOWN IAW SRM 53-00-50-2R-1 PAR.3.K.(1).(B-C) AND L.(1).;[07] VERIFIED CORRECTIVE ACTION 6;[08] SET PLIES TO CURE UNDER HEAT LAMP USING THERMOMETER ID: ATS1777 S/N: 34910028WS; CURED PLIES AND UNBAGGED PLIES IAW SRM 53-00-50-2R-1 PARA 3.M.(1).;[09] JOB COMPLETE.;[10] VERIFIED CORRECTIVE ACTIONS 8 AND 9;[11] VERIFIED CORRECTIVE ACTIONS 8 AND 9