S4·E20 Air Safety: The Unknown Factor
Core
Aired November 17, 1967 60 min
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Synopsis
Horizon investigates air navigation and flight safety.
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Frequently Asked Questions
When did Season 4 Episode 20 of Horizon air?
Season 4, Episode 20 ('Air Safety: The Unknown Factor') originally aired on November 17, 1967.
How long is Season 4 Episode 20 ('Air Safety: The Unknown Factor')?
The runtime for this episode is approximately 60 minutes.
What happens in Horizon Season 4 Episode 20?
Horizon investigates air navigation and flight safety....
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