mzaharis
Well-known member
- Joined
- Sep 27, 2004
- Posts
- 541
One of the problems of Hawker 4000 certification is that it took more than 5 years from the start of the certification to the end. My understanding is that you're only held to the standards in place at the beginning of the certification - if regs change during certification, you're "grandfathered" in. During that time, the FARS for fuel systems were tightened (I forget exactly how, but maybe it was that an inerting system is required, or greater control of ignition source). Since the 4000 took more than 5 years, Raytheon had to, in effect, "restart" certification. They had already done the legwork, and could present their data, but they were liable for the latest FARs. I think they were able to "make a deal", where they received their type cert, but they were given a deadline to comply with the stiffer fuel system regs. That's been at least of the delay on getting to market.
This is off of memory and a quick google of AIN, so I apologize in advance if my accuracy isn't perfect.
Here's some extra detail:
http://www.ainonline.com/news/singl...fication-process/?no_cache=1&cHash=7ad644df3d
This is off of memory and a quick google of AIN, so I apologize in advance if my accuracy isn't perfect.
Here's some extra detail:
http://www.ainonline.com/news/singl...fication-process/?no_cache=1&cHash=7ad644df3d