# SDR SWAA2022050290192

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 31, 2022
- Submitted: May 2, 2022
- Operation: Air carrier
- Aircraft: [N475WN](https://openairdocs.org/aircraft/N475WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32474
- Aircraft time: 59,744 hours, 35,276 cycles
- System (JASC): [5321 · Fuselage Floor Panel](https://openairdocs.org/jasc/5321)
- Part: Panel
- Condition: Missing
- Location: Fuselage
- 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/SWAA2022050290192

## Discrepancy

PASSENGER CABIN FLOOR PANEL; 221BF; AFT OUTBOARD CORNER IS MISSING. / [01] IDENTIFIED PANEL MATERIAL IAW SRM 53-00-50-0I-1 FIG 2 TABLE 2.<BR>FOUND DAMAGE TO BE OUT OF ALLOWABLE LIMITS IAW SRM 53-00-50-1A-1 PARA 4F.<BR>DAMAGE WILL BE REPAIRED IAW SRM 53-00-50-2R-6.<BR>REMOVED 7EA THROUGH INSERTS TO FACILITATE REPAIR IAW SRM 53-00-50-2R-6 PARA 3B.<BR>REMOVED DAMAGED SKIN AND CORE AROUND AFT O/B CORNER; CLEANED REPAIR AREA IAW SRM 53-00-50-2R-6 PARA 3C-E.;[02] VALIDATED APPLICABILITY OF SRM 53-00-50-2R-6.;[03] INSPECTED AND VERIFIED CORRECTIVE ACTIONS 1 AND 2. OKAY TO PROCEED PER SRM 53-00-50-2R-6.;[04] FABRICATED CORE PLUG OUT OF BMS 8-124 CL4 TY5 GR5 LOT#1283769; AND FABRICATED UPPER SURFACE REPAIR PLIES OUT OF BMS 9-3 ST 1581 LOT#1475360-2 IAW SRM 53-00-50-2R-6 PAR 4F. OK TO INSTALL.;[05] VERIFIED CORRECTIVE ACTION 4<BR><BR>OK TO INSTALL CORE PLUG AND REPAIR PLIES;[06] INSTALLED REPAIR PARTS USING BMS 8-201 TY IV LOT#1486456-1; AND BMS 5-28 TY 19 LOT#AK1KP5968K; VACUUM BAGGED; CHECKED FOR LEAKS USING PRESSURE GAGE ID:ATS2583 S/N:5432766772 IAW SRM 53-00-50-2R-6 PAR 3G(1);H(1).;[07] VERIFIED CORRECTIVE ACTION 6;[08] CURED REPAIR WITH THERMOMETER ID:ATS2208 S/N:43300740WS; UNBAGGED AND SANDED CORE PLUG SMOOTH TO SURFACE; FABRICATED LOWER SURFACE REPAIR PLIES<BR>FROM BMS 9-3H2 LOT#1475360-2 IAW SRM 53-00-50-2R-6 PARA 3I-K.<BR>OK TO INSTALL;

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