Brightwork Studio · Demonstration sample, not client work.
Working title: The Airliner That Ran Out of Fuel at 41,000 Feet
Format: documentary narration, ~1,300 words, ~10–11 minutes at a measured pace. Brief assumed: aviation-disaster channel, single-incident episode, animation or archive over narration.
Written to show: cold open, setup, turning point, payoff; every checkable claim carries a source number.
It is a Saturday evening in July 1983. Somewhere over the forests of northwestern Ontario, a brand-new Boeing 767 is cruising at forty-one thousand feet with sixty-one passengers and eight crew on board. [1]
In the cockpit, a warning chimes. Fuel pressure, left side. The captain and first officer look at each other. A fuel pump has probably failed. That happens. They silence the alarm. [1]
A few seconds later it chimes again. Right side. [1]
Then a sound neither of them has ever heard in an aircraft. A single, sharp "bong." It is the all-engines-out warning. Nobody in that cockpit could remember hearing it before, because nobody had ever expected to. [1]
Both engines have stopped. The screens go dark. And the newest airliner in Air Canada's fleet has just become the world's heaviest glider. [1]
To understand how a modern jet runs dry in the middle of a routine flight, you have to go back one day, to Edmonton.
On July 22, a technician checking over aircraft C-GAUN found a fault in the fuel quantity indicator system. He disabled the bad channel and wrote it up in the logbook. The aircraft could still fly: the gauge ran on one channel, and the crew took a second measurement with a dripstick, a physical gauge in the wing tank, to confirm the reading. The two agreed. The 767 flew to Toronto, then Montreal, without incident. [1]
In Montreal, Captain Bob Pearson and First Officer Maurice Quintal took over for Flight 143, bound for Ottawa and then Edmonton. Pearson was briefed about the gauge. He decided to load enough fuel in Montreal to reach Edmonton without topping up in Ottawa. [1]
Here the chain starts to twist.
While the crew waited for the fuel truck, an avionics technician read the logbook entry and re-enabled the disabled channel to run a self-test. The test failed. The fuel truck arrived, he was distracted, and he left the channel switched on. When Pearson walked into the cockpit, the fuel gauge was blank. He expected that. What he did not know was that the one working channel had now been knocked out too. [1]
So the fuel load would be worked out by hand: dripstick reading in centimetres, converted to litres, converted to kilograms. [1]
The 767 was new to the fleet, and it was Air Canada's first all-metric aircraft. It measured fuel in kilograms. Every other aircraft the airline flew measured fuel in pounds. [1]
Pearson took the density figure for jet fuel from the refueller's slip. That figure, used across the rest of the fleet, was in pounds per litre. The number the 767 needed was kilograms per litre. Litres times the wrong density gave a mass that looked right, in the wrong unit. The result went into the flight management computer as kilograms. [1]
The aircraft flew to Ottawa. Another dripstick reading. The same conversion, the same error. The computer said there was enough fuel for Edmonton. No fuel was loaded in Ottawa. [1]
Flight 143 climbed out toward the west carrying about forty-five percent of the fuel it needed. [1]
Over Red Lake, Ontario, shortly after eight in the evening, the left engine flamed out. The crew declared a diversion to Winnipeg and began preparing for a single-engine landing. Then the right engine stopped. [1]
The 767 was one of the first airliners with an electronic flight instrument system. Those screens ran on power from the engines. With both engines gone, most of the panel went dark. What remained were a few basic, battery-powered standby instruments. Enough to fly. Not enough to tell them one crucial thing: there was no vertical speed indicator, so nothing on the panel said how far the aircraft could glide. [1]
The transponder failed too. In Winnipeg, controllers lost the altitude readout and fell back on primary radar just to keep track of the blip. [1]
The flight controls on a 767 are too big to move by muscle. They need hydraulics, and hydraulics need power. The aircraft had a last-resort answer: a ram air turbine, a small propeller that swings out from under the fuselage and uses the airflow to drive a hydraulic pump. It worked, but the slower the aircraft flew, the less it gave them. [1]
The crew reached for the emergency checklist and looked for the section on flying with both engines out. There wasn't one. [1]
What the aircraft did have was Bob Pearson. Pearson flew sailplanes. He knew that a glider has one speed that gives you the most distance for every foot of altitude, and that finding it is the difference between reaching a runway and not. He had no chart for a 767 with no engines. He made his best estimate and held the aircraft at 220 knots. [1]
Quintal did the arithmetic. He took altitude from the standby instrument and distance from Winnipeg's radar. In ten nautical miles they had lost five thousand feet. A glide ratio of about twelve to one. [1]
Winnipeg was not going to happen.
Quintal knew this part of Manitoba. He had served at RCAF Station Gimli, a closed air force base with a long runway, and it was closer. He proposed it. The controller agreed. [1]
Neither of them knew what Gimli had become. Part of the base was now Gimli Motorsports Park: a road course, a go-kart track, a drag strip. That evening the Winnipeg Sports Car Club was running a sanctioned race, and the ground around the old runway was full of cars and campers. Part of the runway itself was being used to stage the event. [1]
With no hydraulic pressure to spare, the crew dropped the landing gear by gravity. The main gear locked. The nose gear did not. [1]
As the runway came into view, Pearson saw the problem every glider pilot dreads: too high, too fast. With no flaps and no slats, he could not slow the aircraft the normal way. A full circle to lose height was considered and rejected; there was not enough altitude to complete it. [1]
So he did what glider pilots do. He crossed the controls: rudder one way, ailerons the other. A forward slip. The aircraft turned partly sideways to the airflow, drag rose sharply, and the 767 came down without speeding up. It is a manoeuvre taught in light aircraft and almost never seen in a wide-body jet. It also disrupted the airflow over the ram air turbine, and when Pearson straightened out, the controls answered slowly. [1]
The engines were silent. People on the ground heard almost nothing until the aircraft was on top of them. [1]
The 767 touched down on the old runway. Pearson braked hard the moment the wheels touched, blowing two tyres. The unlocked nose gear folded back into its well, the nose slammed down, bounced, and scraped along the concrete. That friction was what slowed the aircraft. Pearson fed in right brake and the main gear straddled the guardrail that ran down the centre of the drag strip. Seventeen minutes after the second engine quit, Flight 143 stopped. [1]
Sixty-nine people on board. No fatalities, and no serious injuries on the ground. The nose was on the concrete, so the tail sat high in the air, and the rear evacuation slides no longer reached the ground; that is where the handful of minor injuries came from. Racers and course workers put out a small fire in the nose with hand-held extinguishers. [1]
The Board of Inquiry did not find one villain. It found a chain: a failure-prone gauge, a replacement part that was also faulty, a logbook entry that was misunderstood, a self-test left half-finished, a density figure in the wrong unit, and a fleet flying with two systems of measurement at once. It recommended fuelling procedures that other airlines were already using, and it recommended that Air Canada convert its entire fleet to metric, because a mixed fleet was more dangerous than either system alone. [1]
C-GAUN was repaired. It flew for Air Canada for another twenty-five years and was retired in 2008. [1]
Pilots never called it Flight 143 again. They called it the Gimli Glider. [1]
[1] Wikipedia, "Gimli Glider" (Air Canada Flight 143), retrieved 28 Sep 2026: https://en.wikipedia.org/wiki/Gimli_Glider — which in turn cites the Final Report of the Board of Inquiry into Air Canada Boeing 767 C-GAUN Accident, Gimli, Manitoba, July 23, 1983 (Government of Canada, 1985). For a paid script we go to that primary report and contemporary press coverage directly and cite them line by line; this demonstration was sourced from the encyclopaedia summary only, and says so.
Notes for the editor: the two claims most often repeated about this story that we could NOT verify from the cited source are (a) the exact number of people on the drag strip and (b) children cycling on the runway at touchdown; both are flagged in the source as needing citation, so they are left out. Runway numbers, exact fuel quantities in litres and kilograms, and the crew's radio calls are in the primary report and would be added for a paid script.
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