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The Gimli Glider
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A wide-body jet goes quiet at 41,000 feet, the cockpit starts losing systems, and the crew has to fly a Boeing 767 like a glider with no engines. That sounds impossible until you trace the real-world chain behind Air Canada Flight 143, the incident aviation history now calls the Gimli Glider. We walk through how a routine day turns into a high-stakes emergency when a faulty Fuel Quantity Indicating System (FQIS) forces manual checks, and a simple units problem quietly sets the trap.
We dig into the 1983 context: Air Canada’s brand-new “high tech” 767 fleet, the learning curve of a two-person cockpit, and the operational shift from pounds to kilograms for fuel. Then we follow the maintenance handoffs and decisions that leave the fuel gauges blank, pushing the crew toward dripstick measurements and calculations that look reasonable but are built on the wrong conversion. It’s a tight, practical story about aviation safety, redundancy, and how miscommunication can be just as dangerous as hardware failure.
From the first low fuel pressure warnings to the moment both engines flame out, we break down what the crew loses when the generators stop: electrical power, key instruments, and even transponder visibility to ATC. You’ll hear how the ram air turbine restores limited hydraulic control, why diverting becomes a race against glide distance, and how Captain Bob Pearson’s glider experience shapes an unconventional approach, including a sideslip, to reach Gimli only to find a decommissioned runway turned motorsports drag strip with people on it.
If you like detailed air disaster stories, cockpit decision-making, and the small math errors that can threaten a 300-seat aircraft, you’ll get a lot from this one. Subscribe for more, share the episode with a friend, and leave a rating or review so more listeners can find the show.
Facebook: historyisadisaster
Instagram: historysadisaster
email: [email protected]
Special thank you to Lunarfall Audio for producing and doing all the heavy lifting on audio editing since April 13, 2025, the Murder of Christopher Meyer episode https://lunarfallaudio.com/
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By AndrewSend us Fan Mail
A wide-body jet goes quiet at 41,000 feet, the cockpit starts losing systems, and the crew has to fly a Boeing 767 like a glider with no engines. That sounds impossible until you trace the real-world chain behind Air Canada Flight 143, the incident aviation history now calls the Gimli Glider. We walk through how a routine day turns into a high-stakes emergency when a faulty Fuel Quantity Indicating System (FQIS) forces manual checks, and a simple units problem quietly sets the trap.
We dig into the 1983 context: Air Canada’s brand-new “high tech” 767 fleet, the learning curve of a two-person cockpit, and the operational shift from pounds to kilograms for fuel. Then we follow the maintenance handoffs and decisions that leave the fuel gauges blank, pushing the crew toward dripstick measurements and calculations that look reasonable but are built on the wrong conversion. It’s a tight, practical story about aviation safety, redundancy, and how miscommunication can be just as dangerous as hardware failure.
From the first low fuel pressure warnings to the moment both engines flame out, we break down what the crew loses when the generators stop: electrical power, key instruments, and even transponder visibility to ATC. You’ll hear how the ram air turbine restores limited hydraulic control, why diverting becomes a race against glide distance, and how Captain Bob Pearson’s glider experience shapes an unconventional approach, including a sideslip, to reach Gimli only to find a decommissioned runway turned motorsports drag strip with people on it.
If you like detailed air disaster stories, cockpit decision-making, and the small math errors that can threaten a 300-seat aircraft, you’ll get a lot from this one. Subscribe for more, share the episode with a friend, and leave a rating or review so more listeners can find the show.
Facebook: historyisadisaster
Instagram: historysadisaster
email: [email protected]
Special thank you to Lunarfall Audio for producing and doing all the heavy lifting on audio editing since April 13, 2025, the Murder of Christopher Meyer episode https://lunarfallaudio.com/