The person at the center of this case
Nichol Paul Sias
Missing Person · Open
30 years waiting · since 1996
Missing Person: Nichol Paul Sias
Justice for Nichol Paul Sias — the trail went cold in 1996, but the truth hasn't.
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Key leads to think about
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vehicle
Lead #1What caused the Grumman Goose seaplane to crash during a routine 20-minute flight in good conditions?
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evidence
Lead #2What remains of the aircraft and crew, and why has the wreckage investigation not been conclusive?
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person
Lead #3Were there any distress signals or communications from the aircraft before it went down?
Nichol Paul Sias and William Cork departed Anderson Bay, Alaska on August 11, 1996, in a small Grumman Turbine G-21A Goose seaplane headed for Dutch Harbor on what should have been a 20-minute flight. Part of the aircraft was discovered on a beach near Unalaska, approximately 6 miles northeast in Constantine Bay, suggesting the plane went down over the water. Despite the discovery of wreckage, the fate of both men and the full circumstances of the crash remain unknown, and investigators continue seeking information about what happened during that flight.
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More leads to consider
Beyond the top three above — each detail below could be the thread that pulls this case open.
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location
Lead #4Why was wreckage found in Constantine Bay rather than along the direct route to Dutch Harbor?
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Official wording
Source Narrative
NamUs case MP67004. Missing person: Nichol Paul Sias.
Last known contact: 1996-08-11 in Dillingham, Dillingham, AK. Circumstances: Nichol and William Cork, MP #67268 are missing in a white Grumman Turbine G-21A Goose plane with tail number N660PA that departed Anderson Bay at 1610 hours on a 20-minute flight to Dutch Harbor.
Part of plane was found on the beach in Constantine Bay about 6 miles northeast of Unalaska. Demographics: 58 years, Male, White / Caucasian.
Physical description: 6 ft 6 in, 190 lbs, hair: Brown, eyes: Blue. Investigating agency: Alaska State Troopers | 960056737.
Timeline of Events
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1996-08-11
16:10Aircraft departure
Nichol Paul Sias and William Cork departed Anderson Bay in white Grumman Turbine G-21A Goose plane (N660PA) on scheduled 20-minute flight to Dutch Harbor
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1996-08-11
Wreckage found
Part of plane discovered on beach in Constantine Bay, approximately 6 miles northeast of Unalaska
Key Locations
Interactive map showing important locations related to this case
Case Information
Incident:August 11, 1996 at 4:10 PM
Last Updated:September 26, 2026
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Phone: 9072695511
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Case Information
Incident:August 11, 1996 at 4:10 PM
Last Updated:September 26, 2026
Have Information?
Any information, no matter how small, could be crucial to solving this case.
Phone: 9072695511
You can remain anonymous