Pan Am Flight 7, 'Romance of the Skies'
On 8 November 1957 the Pan Am Boeing Stratocruiser 'Romance of the Skies' crashed into the Pacific between San Francisco and Honolulu, killing all 44 aboard, after its regular radio calls simply stopped.
1957 CE · 27.00, -141.00 · status: disputed
The account
Bodies and wreckage were found a week later. High levels of carbon monoxide in some victims led to theories of fire or sabotage; a passenger with a large insurance policy was suspected but never proven to be involved.
The sceptical view
The cause was never determined; a mechanical failure is as likely as sabotage.
The researched reading
A real airliner loss mid-Pacific, with a type known for propeller failures and a passenger with a motive. Mechanical failure or sabotage are the realistic answers; nothing points beyond them.
| Explanation | Weight | Why |
|---|---|---|
| A known natural phenomenon | 50% | Known mechanical failure: the Stratocruiser type had a history of runaway propellers and engine failures (this aircraft returned to San Francisco with one in June 1957), and CAB investigators thought a propeller or turbocharger disk entering the cabin could explain fire, carbon monoxide and the loss of radio. Recovered wreckage showed the aircraft hit the sea nearly intact, as in an attempted ditching. |
| Secret human technology | 20% | This set has no separate key for crime, so deliberate sabotage is weighed here: passenger William Payne, deep in debt, with explosives experience and new insurance, was suspected, and deliberate release of carbon monoxide was considered; but CAB lab tests found no bomb and nothing was proven. |
| Undetermined | 16% | The share a generic explanation had beyond what has been shown for this case: it fits many cases like this one, but has not been demonstrated for this one. |
| Something known, misidentified | 3% | No witnesses saw the crash; misidentification has no clear role. |
| A poorly understood natural phenomenon | 3% | An unknown natural cause (sudden severe turbulence, for example) is possible but no weather supports it. |
| Perception, memory or mind | 3% | Crew disorientation from carbon monoxide could explain the lack of a distress call, but this is part of the mechanical explanation. |
| A hoax or fabrication | 3% | The loss is fully documented; only later "mystery" framing adds embellishment. |
| Genuinely anomalous | 2% | A mid-ocean airliner loss with known failure modes needs no anomaly. |
Official position: The Civil Aeronautics Board found insufficient evidence to determine the cause.