# SDR SWAA2023070554178

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 31, 2023
- Submitted: July 5, 2023
- Operation: Air carrier
- Aircraft: [N962WN](https://openairdocs.org/aircraft/N962WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36963
- Aircraft time: 38,452 hours, 23,554 cycles
- System (JASC): [5321 · Fuselage Floor Panel](https://openairdocs.org/jasc/5321)
- Part: Floor Panel
- Part number: UNKNOWN
- Condition: Pulled
- Location: Zn 100 Fus Lower
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2023070554178

## Discrepancy

FLOOR PANEL 241UF UPPER SKIN HAS PULLED STRANDS.<[01] IDENTIFIED FLOOR PANEL 241UF MATERIAL IAW SRM 53-00-50-0I-1 FIGURE 5 TABLE 5.<BR><BR>DAMAGE EXCEEDS ALLOWABLE DAMAGE LIMITS IAW SRM 53-00-50-1A-1 PARAGRAPH 4.F. <BR><BR>DAMAGE TO FLOOR PANEL IS BEYOND ECONOMICAL REPAIR AND MAY BE REPLACED BY FABRICATING A NEW PANEL IAW SRM 53-00-50-2R-0 PARAGRAPH 1.A (NOTE).<BR><BR>FABRICATED NEW FLOOR PANEL AND LOCATED INSERT HOLES USING BMS4-23 TYII LOT# 1525675-1 IAW SRM 53-00-50-2R-0 PARAGRAPH 5.S(1) (A-C) AND BWG DWG 146A5810 ID:0470;[02] INSTALLED INSERTS USING BMS 5-107 LOT#AK2KP8383K IAW SRM 53-00-50-2R-0 PARA 5.S(D-G) AND BDWG 146A5810-470.<BR>INSERTS NEED CURE.;[03] INSTALLED REMAINING INSERTS USING BMS 5-107 ADHESIVE LOT#AK2KP8383K IAW BWG DWG: 146A5810 ID:0470 AND BAC5085 PARA 8.4.2.2(A-G).<BR><BR>CURED BMS 5-107 ADHESIVE FOR ALL INSERTS USING THERMOMETER ID: ATS2192 CAL DUE: 08/2023 IAW SRM 53-00-50-2R-0 PARAGRAPH 5.S(1)(H); BWG DWG: 146A5810 ID:0470 AND BAC5085 PARA 8.4.2.2(H) AND FIG. 15.<BR><BR>PART MARKED PANEL AND APPLIED PROTECTIVE TAPE IAW BWG DWG: 146A5810 ID:0470.;[04] VERIFIED CORRECTIVE ACTIONS 1-3<BR><BR>VERIFIED MEASUREMENTS TABLE;[05] DAMAGED PANEL WAS REPLACED WITH NEW FABRICATED FROM RAW STOCK IAW SRM 53-00-50-2R-0 AND DRAWING 146A5810.<BR><BR>UPLOADED CURE SHEET.<BR><BR>JOB COMPLETE.;[06] VERIFIED CORRECTIVE ACTION 5

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.