STG emergency power system certificated on 767
The FAA has granted a supplemental type certificate for installation of STG Aerospace’s Wireless Emergency Primary Power System (WEPPS) in the Boeing 767. The system has also been certificated on the Boeing 737 NGs.
WEPPS has been selected by Jet Airways of India and a number of other carriers. It promises significant cost savings by replacing the maintenance-intensive lithium ion batteries that currently power emergency lighting systems with longer-life, non-rechargeable lithium sulphur dioxide units.
The system also uses low-power spread-spectrum wireless technology to check the status of the batteries and all emergency lighting and report back to a compact diagnostic panel wall-mounted at the forward crew station. The latter can be used by cabin staff to check the flightworthiness of the whole emergency lighting system in seconds.
“WEPPS eliminates costs that have previously been accepted as inevitable,” says Peter Stokes, chief executive of UK-based STG. “We calculate that over a billion dollars of annual maintenance costs could be driven out of the industry.” WEPPS won the 2008 Crystal Cabin Award for innovation at this year’s Aircraft Interiors show in Hamburg.
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