RICHMOND, BC, Nov. 27, 2013 /CNW/ - The TSB today released its
investigation report (A12P0136) into the crash of a Piper PA-30 near
Brenda Mines west of Kelowna, British Columbia. The accident cost the
lives of 2 of the 4 people onboard.
On 13 August 2012, the privately-operated Piper Twin Comanche left
Penticton Airport, British Columbia, at 14:32 Pacific Daylight Time on
a flight to Boundary Bay with 1 pilot and 3 passengers onboard. The
aircraft flew northbound over Okanagan Lake for approximately 20
nautical miles before turning west into a valley. This was about 14
nautical miles further than planned due to a lower than expected rate
of climb. The aircraft wreckage was located about 2½ hours later in a
wooded area near the Brenda Mines site, approximately 18 nautical miles
west of Kelowna.
The TSB investigation found that a number of factors contributed to the
accident including a reduced rate of climb. The reduced rate of climb
was attributed to atmospheric conditions, the aircraft being over its
gross takeoff weight, reduced power in the right engine, and the
decision not to use available turbochargers.
The investigation also determined that the safety of passengers could
have been improved if the aircraft had been equipped with shoulder
harnesses to complement the available lap belts. Of note, investigators
also established that the risk of a post-crash fire was reduced because
the aircraft battery had disconnected during the crash, thereby
removing a potential ignition source for the remaining aviation fuel.
Following the accident, NAV CANADA and Transport Canada have added
information on recommended altitudes when departing the Okanagan Valley
and suggest flying routes between Princeton, Brenda Mines, highway 97C
and Okanagan Lake. As well, a new sign was installed at the Penticton
Airport advising pilots to climb to 5000 feet prior to turning west or
east when departing the Okanagan Valley.
The TSB is an independent agency that investigates marine, pipeline,
railway and aviation transportation occurrences. Its sole aim is the
advancement of transportation safety. It is not the function of the
Board to assign fault or determine civil or criminal liability.
SOURCE: Transportation Safety Board of Canada
For further information:
Transportation Safety Board of Canada
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