# SDR SWAA2021110123874

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 28, 2021
- Submitted: November 1, 2021
- Operation: Air carrier
- Aircraft: N414WN
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29820
- Aircraft time: 67,826 hours, 39,808 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Web
- Condition: Cracked
- Location: Bs 400 - 420
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2021110123874

## Discrepancy

CRACK WEB LOCATED BTW BS 400 & 420, S26L.  REMOVED WEB IAW  SRM 51-40-02.  ALLOWABLE DAMAGE LIMITS FOR CRACK ON WEB INTERCOSTAL NOT FOUND IN SRM.   DRILLED NEW HOLES ON WEB IAW SRM 51-40-05.  INSTALLED NEW WEB IAW SRM 51-40-02, AND DWG 143A7505, SHEET 2, REV B.

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