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Don Ames Responded
There have been 3 major accidents in recent years which have been at
least partially attributable to high tech systems and a lack of basic manual
back up capabillities.( South America-757, Florida-DC-9 and Canada-MD-11)
It appears that the aviation industry has come to rely too much on
electrically powered instrument and flight control systems; and with
insufficient thought given to how to quickly evacuate smoke from modern
pressurized aircraft with a MANUAL system.
We need to be sure all aircraft,and especially airliners, have a
capability to:
- Manually operate pressurization and outflow valves to quickly evacuate smoke that is in the cockpit and/or cabin
- Be flown on instruments and communicate and navigate on battery powered emergency equipment
- Be flown with all other electrical power disconnected
Additionally, aircrews need to be proficient in operating the aircraft on their back-up systems
Attention given to these areas should save a lot of lives.
Don Ames
E-mail: DSAMES68@aol.com
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