# SDR SWAA2021102519319

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 17, 2021
- Submitted: October 25, 2021
- Operation: Air carrier
- Aircraft: [N448WN](https://openairdocs.org/aircraft/N448WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 33721
- Aircraft time: 58,879 hours, 34,833 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Scuff Plate
- Condition: Cracked
- 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/SWAA2021102519319

## Discrepancy

CRACK FWD CORNER SCUFF PLATE AT AFT CARGO COMPARTMENT.  FOUND CRACK MEASURE IS L= 0.6365 INCH.  WELDED THE FWD CORNER SCUFF PLATE OF AFT CARGO COMPARTMENT IAW SRM 53-60-15-2R-1, REPAIR 1, PARAGRAPH 4.B.STEP 4, AND BAC 5975 .  PENETRANT INSPECTION WAS PERFORMED ON WELD AREA, CRACK INDICATION NOT FOUND IAW SOPM 20-20-02.   APPLIED CHEMICAL CONVERSION COATING AND PRIMER ON THE FWD CORNER SCUFF PLATE IAW SRM 53-60-15-2R-1, REPAIR 1, PARAGRAPH 4. B. STEPS  5, 6, & 7.

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