# SDR SWAA2023033013009

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 7, 2023
- Submitted: March 30, 2023
- Operation: Air carrier
- Aircraft: [N556WN](https://openairdocs.org/aircraft/N556WN), registered now
- Make and model: Boeing 737-7BD
- Registry model: [Boeing 737-7BD](https://openairdocs.org/model/boeing-737-7bd) (OpenAirDocs)
- Aircraft serial: 33936
- Aircraft time: 37,398 hours, 21,958 cycles
- System (JASC): [5311 · Fuselage Main, Frame](https://openairdocs.org/jasc/5311)
- Part: Frame
- Condition: Cracked
- 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/SWAA2023033013009

## Discrepancy

FRAME CRACKED BS400 R/H AT BIN RAIL ATTACH POINT BETWEEN STR8R-9R<[01] VERIFY CRACK LENGTH BY NDI HFEC PROCEDURE.;[02] ACCOMPLISHED HFEC SURFACE SCAN IAW 737 NDTM PART 6 CHAPTER 51-00-00 PROCEDURE 23. VERIFIED MULTIPLE CRACKS AROUND HOLE MEASURED 1.6' L AND 0.6'L MARKED.<BR><BR>EQUIPMENT USED: NORTEC 600 ID: ATS1465 CAL DUE: 09/2023;[03] REMOVED DAMAGE ON FRAME BS 400 R/H AT BIN RAIL ATTACH POINT BTW S-8R - S-9R; CUT OUT AREA: L= 1' X W=.850' IAW SRM 51-10-02-0G-0;[04] VERIFIED CORRECTIVE ACTION 3.;[05] REQ NDI CUT OUT FOR FREE CRACK CONDITION;[06] HFEC INSPECTED CUTOUT AREA IAW 737 NDTM PART 6 51-00-00 PROCEDURE 23.<BR>NO CRACKS NOTED.<BR>EQUIP USED:<BR>-NORTEC 600 ID: ATS1465 CAL DUE: 09/23;[07] REPAIRED PER EA 23-153-00830

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