# SDR SWAA2021110122991

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 25, 2021
- Submitted: November 1, 2021
- Operation: Air carrier
- Aircraft: N420WN
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29825
- Aircraft time: 66,751 hours, 39,284 cycles
- System (JASC): [5313 · Fuselage Main, Longeron/Stringer](https://openairdocs.org/jasc/5313)
- Part: Stringer
- 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/SWAA2021110122991

## Discrepancy

CRACK STRINGER 23R ON BS 540 AT FWD CARGO COMPARTMENT ; 2021-435965 (CORRECTED LOCATION OF DAMAGE IS STRINGER 25L STA 540) / [32] REPAIRED STR.25L LOC. BTW BS 500D+10 TO BS 540 AT LEVEL STR 25L FWD CARGO COMPARTMENT. IAW B737-700 SRM 53-00-03-2R-1; [33] STEP 31,NG,NRC,2021-10-16 17:16:30,20Y,Y,MX,0,0,,CRACK STRINGER 23R ON BS 540 AT FWD CARGO COMPARTMENT ; 2021-435965 (CORRECTED LOCATION OF DAMAGE IS STRINGER 25L STA 540)"

---
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.