# Proposed AD FAA-2005-22793: Bombardier Model CL-600-2B19 (Regional Jet Series 100 & 440) Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2006-02-10
- Products: Bombardier
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: October 27, 2005, 70 FR 61920
- Comments due: November 28, 2005
- Became: [AD 2006-02-10](https://openairdocs.org/ad/2006-02-10)
- Docket: FAA-2005-22793 (https://www.regulations.gov/docket/FAA-2005-22793, where comments are filed)
- Project: 2005-NM-161-AD
- FR document: 05-21435
- Official PDF: https://openairdocs.org/files/sha256/4b/cb/4bcb7f86ae7dafaf8d7ac06f204aeda75a6665a2be0b2d90e084c598e4725b6b (from https://www.govinfo.gov/content/pkg/FR-2005-10-27/pdf/05-21435.pdf)
- Federal Register: https://www.federalregister.gov/documents/2005/10/27/05-21435/airworthiness-directives-bombardier-model-cl-600-2b19-regional-jet-series-100-and-440-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/8E97B107B1478729862570A700530DFB.0001
- Page: https://openairdocs.org/proposed/FAA-2005-22793

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Bombardier Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes. This proposed AD would require replacing the Gask-O- Seal in the coupling of the refuel/defuel shut-off valves. This proposed AD results from a report that Gask-O-Seals that did not incorporate an integral restrictor to limit fuel flow rate and fuel pressure during refueling were installed on certain airplanes. We are proposing this AD to prevent a buildup of excessive static charge, which could create an ignition source inside the fuel tank.

## Notices in this docket

- Oct 27, 2005: Notice of proposed rulemaking (NPRM). (first notice), FR document 05-21435, comments due Nov 28, 2005 (https://www.federalregister.gov/documents/2005/10/27/05-21435/airworthiness-directives-bombardier-model-cl-600-2b19-regional-jet-series-100-and-440-airplanes)

---
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.