Yes, there has been one. On July 26 1993 CRJ registration C-FCRJ was lost at Byers KS, USA details below:
Time: 13.52 CDT
Type: Canadair RJ100 Regional Jet
Year built: 1991
Total airframe hrs: 771 hours
Cycles: 800 cycles
Crew: 3 fatalities / 3 on board
Passengers: 0 fatalities / 0 on board
Total: 3 fatalities / 3 on board
Location: Byers, KS (USA)
Flight: Wichita-Mid Continent APT, KS - Wichita-Mid Continent APT, KS (Flightnumber )
The Canadair plane was on a test flight out of Wichita, KS to evaluate flying qualities in a new 8deg. takeoff flap setting and to demonstrate compliance with US 14 CFR 25.177 rules. The aircraft lost control during a low speed steady-heading sideslip test maneuver at FL120. The crew were to end a Steady Heading Sideslip (SHSS) maneuver at a 15deg sideslip, but continued to 21deg. at full rudder. The plane rolled rapidly through 360deg and entered a deep stall. As it descended through 8000ft the captain requested the copilot to deploy the anti-spin parachute, which he complied with. The copilot however, didn't close the jaws (which connect/disconnect the parachute from the airplane) before chute deployment. The chute thus fell free of the plane. Control was not regained and the aircraft crashed and skidded for about 200 yards through several cornfields. PROBABLE CAUSE: "The captain's failure to adhere to the agreed upon flight test plan for ending the test maneuver at the onset of prestall stick shaker, and the flightcrew's failure to assure that all required switches were properly positioned for anti-spin chute deployment. A factor which contributed to the accident was the inadequate design of the anti-spin chute system which allowed deployment of the chute with the hydraulic lock switch in the unlocked position. (When in the unlocked position, the hooks clasping the chute shackle to the airframre are open.)"
S170; Air International September 1993, p.127; NTSB Safety Recommendation A-94-101; AW&ST 02.08.1993 (39-40)
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