# Proposed AD FAA-2019-0526: Bombardier, Inc., Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2020-03-17
- Products: Bombardier
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: September 20, 2019, 84 FR 49484
- Comments due: November 4, 2019
- Became: [AD 2020-03-17](https://openairdocs.org/ad/2020-03-17)
- Docket: FAA-2019-0526 (https://www.regulations.gov/docket/FAA-2019-0526, where comments are filed)
- FR document: 2019-20333
- Official PDF: https://openairdocs.org/files/sha256/d2/78/d2784332578ba989c6e5716dad7470a38688b07ffef8b53b6c54fcf47b2bcb31 (from https://www.govinfo.gov/content/pkg/FR-2019-09-20/pdf/2019-20333.pdf)
- Federal Register: https://www.federalregister.gov/documents/2019/09/20/2019-20333/airworthiness-directives-bombardier-inc-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/4178AA23271048C18625847B0043D9F9.0001
- Page: https://openairdocs.org/proposed/FAA-2019-0526

## Summary

The FAA proposes to supersede Airworthiness Directive (AD) AD 2015-24-04, which applies to certain Bombardier, Inc., Model CL-600- 2B19 (Regional Jet Series 100 & 440) airplanes, Model CL-600-2C10 (Regional Jet Series 700, 701, & 702) airplanes, Model CL-600-2D15 (Regional Jet Series 705) airplanes, Model CL-600-2D24 (Regional Jet Series 900) airplanes, and Model CL-600-2E25 (Regional Jet Series 1000) airplanes. AD 2015-24-04 requires repetitive inspections of the cage assembly for damaged or detached window louver panel assemblies (WLPAs) and blowout panels (BOPs), and corrective actions if necessary. Since AD 2015-24-04 was issued, the FAA has determined that new airworthiness limitations, as well as additional actions, are necessary to address the unsafe condition. This proposed AD would require one-time inspections of the WLPAs and BOPs, corrective actions if necessary, and a revision of the existing maintenance or inspection program, as applicable, to incorporate new airworthiness limitations, which would terminate the proposed inspection requirement. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Sep 20, 2019: Notice of proposed rulemaking (NPRM). (first notice), FR document 2019-20333, comments due Nov 4, 2019 (https://www.federalregister.gov/documents/2019/09/20/2019-20333/airworthiness-directives-bombardier-inc-airplanes)

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