# SDR AALA202109248541

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 8, 2021
- Submitted: September 24, 2021
- Operation: Air carrier
- Aircraft: [N812NN](https://openairdocs.org/aircraft/N812NN), registered now
- Make and model: Boeing 737
- Aircraft serial: 33520
- Aircraft time: 35,855 hours, 14,586 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Shear Web
- Condition: Cracked
- Location: Zone 100 - Fuse
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202109248541

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE: CRACK IN SHEAR WEB AT STA 727 AND LBL 64, MEASURING L=0.25 IN. REWORKED FASTENER HOLES IAW SRM 51-00-05 AND EA330485.

---
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.