Accident Boeing 737-8CT (WL) C-FDMB,
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Date:Friday 5 January 2018
Time:17:55
Type:Silhouette image of generic B738 model; specific model in this crash may look slightly different    
Boeing 737-8CT (WL)
Owner/operator:WestJet
Registration: C-FDMB
MSN: 60127/5188
Year of manufacture:2014
Engine model:CFMI CFM56-7B27E
Fatalities:Fatalities: 0 / Occupants: 174
Aircraft damage: Substantial, repaired
Category:Accident
Location:Toronto–Lester B. Pearson International Airport, Ontario (YYZ) -   Canada
Phase: Standing
Nature:Passenger - Scheduled
Departure airport:Cancún Airport (CUN/MMUN)
Destination airport:Toronto-Pearson International Airport, ON (YYZ/CYYZ)
Investigating agency: TSB
Confidence Rating: Accident investigation report completed and information captured
Narrative:
Two Boeing 737-800 aircraft were involved in a collision on the ground at Toronto-Pearson International Airport, Canada.
WestJet flight 2425, a Boeing 737-800 registered C-FDMB, landed on runway 24R at 17:39 hours local time following a flight from Cancún, Mexico. The flight taxied to Terminal 3 and was stopped with the engines and APU running, on Taxi-lane 2 on the north side of Pier B. The flight crew were waiting for ground personnel to marshal the aircraft into position at Gate B12.
The WestJet aircraft was positioned directly behind and perpendicular to a Sunwing Airlines Boeing 737-800 (C-FPRP), which was parked at Gate B13.
The Sunwing aircraft was being prepared to be towed to another location at the airport. A Sunwing maintenance technician was in the cockpit of C-FPRP, and the aircraft's APU was running. Two ground personnel were in the cab of the tow vehicle. The tow vehicle was informed by the North Apron controller to pushback at their discretion.
The Sunwing aircraft (under tow) began to move back and the APU contacted the right wing of the stationary WestJet aircraft. A fire rapidly ensued. The WestJet flight crew immediately commenced the required steps for an evacuation, and an evacuation was ordered shortly after. The tow vehicle operator pulled the Sunwing aircraft back towards the gate to separate the two aircraft.
The slides on the WestJet aircraft were utilized on doors L1, R1 and L2, along with the over-wing exits on the left side; all passengers evacuated safely. The maintenance technician aboard the Sunwing aircraft exited the left cockpit window using the emergency rope and received minor injuries.
ARFF arrived at the scene, and extinguished the fire. The Sunwing aircraft sustained substantial damage.

Summary:
In this accident, the pushback was conducted without the use of wing walkers, which is not in accordance with Swissport, Sunwing, and GTAA requirements. The investigation also determined that wing walkers were normally used by Swissport only when pushing back aircraft with passengers on board. In addition, the GTAA apron radio officer used phraseology that was not consistent with GTAA AMU procedures.
WestJet’s pre-flight safety briefings do not inform passengers to leave behind carry-on baggage in the event of an evacuation. During this occurrence, several passengers retrieved their carry-on baggage, despite the fact that FAs repeatedly provided specific instructions to the contrary. These passenger actions, in combination with the lack of emergency lighting, delayed the evacuation process.

Accident investigation:
cover
  
Investigating agency: TSB
Report number: A18O0002
Status: Investigation completed
Duration: 6 months
Download report: Final report

Sources:

torontopearson.com

Location

Images:


photo (c) TSB Canada; Toronto-Pearson International Airport, ON (YYZ); 05 January 2018


photo (c) Janos ENGLERT; Toronto-Pearson International Airport, ON (YYZ); 05 January 2018

Revision history:

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