Sun, Sep 09, 2007
Onboard Systems has certified a new
hydraulic cargo hook kit for the MD500 aircraft and will begin
"The legacy hook installed on the MD500 has a history of
inadvertent cargo releases, which have been traced back to improper
rigging and routing of the manual release cable on this aircraft,"
said Jason Lemmon, General Manager of Onboard Systems. "If the
rigging isn't set up properly, there may not be enough slack to
allow for normal movement of the hook during external load
operations, which could cause the hook to open unexpectedly. Our
new kit features a hydraulic release cable that doesn't require any
rigging adjustments at installation, and offers a simplified route
along the aircraft belly."
Excessive movement during external load operations can
unintentionally activate an improperly rigged manual release cable
on a cargo hook system, causing an inadvertent release of the load.
The hydraulic system presents a significant safety advantage
because if the hydraulic cable gets snagged or damaged, it will not
result in an accidental release of the cargo.
Another complaint operators have voiced about the legacy hook is
that the manual release cable seems to wear out quickly, often
requiring replacement every six months to a year. The new Onboard
hydraulic cable is made of braided stainless steel and is very
durable, making the new kit very cost-effective and easy to
maintain over time.
Onboard is also planning to submit the kit to Transport Canada
so that it can be certified for use in Canada.
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