TORONTO, July 30, 2014 /CNW/ - In its investigation report (A13O0045)
released today, the Transportation Safety Board of Canada (TSB)
determined that a number of factors contributed to an unattended
maintenance van crossing the active runway while an aircraft was
landing at the Toronto/Lester B. Pearson International Airport on 11
March 2013. There were no injuries.
A Sunwing Airlines aircraft maintenance technician was in a van parked
near the nose of one of the company's aircraft. The technician exited
the van to perform various duties outside the aircraft and then boarded
it to check the cockpit. Meanwhile, the van had rolled to and crossed
the active arrival runway as an aircraft prepared to land. Air traffic
control noticed a ground radar target as the driverless van crossed the
runway, and instructed the Air Canada Embraer 190 to pull up and go
around. Despite two calls to go around, the Air Canada flight continued
its approach, flew over the van at a height of approximately 35 feet
The investigation found that the van rolled across the active arrival
runway because it was left unattended with the engine running and the
drive gear engaged. The first air traffic control instruction to the
Embraer's flight crew to go around was masked by the sound of the
ground proximity warning system in the cockpit, and therefore not heard
by the flight crew. The second go-around instruction went unnoticed by
the flight crew because it was truncated and the crew did not hear the
aircraft call sign. Without supporting visual cues, the crew did not
interpret the second call as applying to them.
Following the occurrence, the Greater Toronto Airports Authority (GTAA)
issued directives to the Toronto Pearson aviation community reiterating
the prohibition against leaving vehicles idling and unsecured on the
airside. The GTAA also published and disseminated information on the
luminosity requirements for vehicle roof beacons and did spot checks to
inspect beacons and require inoperative or inadequate beacons to be
repaired or replaced. Sunwing Airlines reported to Transport Canada
that it has inspected all of its airside vehicles and ensured that
their roof beacons meet specified luminosity standards.
Risk of collisions on runways is a TSB Watchlist issue. Watch the video!
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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