# SDR SWAA2021100119668

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 17, 2021
- Submitted: April 27, 2022
- Operation: Air carrier
- Aircraft: [N7751A](https://openairdocs.org/aircraft/N7751A), registered now
- Make and model: Boeing 737-7BD
- Registry model: [Boeing 737-7BD](https://openairdocs.org/model/boeing-737-7bd) (OpenAirDocs)
- Aircraft serial: 36717
- Aircraft time: 43,609 hours, 22,223 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Scuff Plate
- Condition: Cracked
- Location: Aft Cargo Bay
- 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/SWAA2021100119668

## Discrepancy

AFT CARGO BAY ; AFT CORNER SCUFF PLATES IS CRACKED ; / [01] WELDED CRACKED RADIUS OF ACB; AFT CORNER SCUFF PLATE USING ER4043 FILLER ROD LOT#1131216 PER SRM 53-60-15-2R-1 PARA 4.B.(2) (4); [02] VERIFIED WELDED AFT CARGO DOOR AFT CORNER SCUFF PLATE REPAIR SRM 53-60-15-2R-1 PARA 4.B.(2) (4); [03] FLUORESCENT DYE PENETRANT INSPECTED REPAIRED AREA IN ACCORDANCE WITH BOEING SOPM 20-20-02 METHOD C. NO CRACKS NOTED.<BR><BR>CALIBRRATED EQUIPMENT USED: RADIOMETER - ATS1681.; [04] SANDED REPAIR WELD SMOOTH IAW SRM 53-60-15-2R-1 PARA 4.B.(5).<BR>CALIBRATED EQUIPMENT USED IN STEP 2: WELDING MACHINE E105893 S/N: KJ256554; [05] VERIFIED THE REPAIR WELD IS SANDED SMOOTH PER SRM 53-60-15-2R-1 PARA 4.B.(5).; [06] OK TO INSTALL; [07] OK TO INSTALL AFT CORNER SCUFF PLATE; [08] INSTALLED AFT CORNER SCUFF PLATE IAW SRM 53-11-02-420-801.; [09] VERIFIED CORRECTIVE ACTIONS STEP 8.

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