# SDR SWAA2023050827782

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 15, 2023
- Submitted: May 8, 2023
- Operation: Air carrier
- Aircraft: N551WN
- Make and model: Boeing 737-76Q
- Registry model: [Boeing 737-76Q](https://openairdocs.org/model/boeing-737-76q) (OpenAirDocs)
- Aircraft serial: 30280
- Aircraft time: 66,624 hours, 41,198 cycles
- System (JASC): [5321 · Fuselage Floor Panel](https://openairdocs.org/jasc/5321)
- Part: Floor Panel
- Condition: Pulled
- Location: Zn 200 Fus Top
- 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/SWAA2023050827782

## Discrepancy

FLOOR PANEL 231ZF UPPER SKIN HAS AREAS OF PULLED STRANDS.<[01] IDENTIFIED PANEL MATERIAL IAW SRM 53-00-50-0I-1 SHEET 1; FIGURE 4; TABLE 4.<BR><BR>UPON INVESTIGATION; PANEL DAMAGE EXCEEDS ALLOWABLE DAMAGE LIMITS IAW SRM<BR>53-00-50-1A-1 PAR. 4. E. & 4. F.<BR><BR>DUE TO SIZE OF DAMAGE FABRICATING NEW PANEL FOLLOWING IAW SRM 53-00-50-2R-0 PAR. 1.A. NOTE:<BR><BR>FABRICATED NEW FLOOR BOARD USING BMS4-23 TY II LOT# 1508291-1; <BR>SANDED EDGES AND CLEANED IAW SRM 53-00-50-2R-0 PAR. 4.A.(2) <BR>TABLE 204; & 5.E. STILL NEED LOCATED INSERT DRILLING.<BR><BR>UPDATED MEASUREMENTS TABLE.;[02] LOCATED AND INSTALLED ALL INSERTS USING BMS 5-107 LOT#AK2KP8383K-1; CURED WITH THERMOMETER ID:ATS2208 CAL DUE 10/2023; PART MARKED PANEL IAW SRM 53-00-50-2R-0 PARA 5.S AND BOEING DWG 144A5810 ID:0020.;[03] VERIFIED CORRECTIVE ACTIONS 1 AND 2<BR><BR>VERIFIED MEASUREMENTS TABLE;[04] UPLOADED CURE SHEET. JOB COMPLETE;[05] VERIFIED CORRECTIVE ACTION 4

---
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.