The person at the center of this case
Nichol Paul Sias
Missing Person · Open
29 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 aircraft (N660PA) to crash between Anderson Bay and Dutch Harbor?
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evidence
Lead #2What remains of the aircraft wreckage and what can it reveal about the accident?
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person
Lead #3What was the condition and fate of both Nichol Paul Sias and William Cork?
Nichol Paul Sias, a 58-year-old male, disappeared on August 11, 1996, when a white Grumman Turbine G-21A Goose aircraft (N660PA) he was piloting departed Anderson Bay in Alaska for a 20-minute flight to Dutch Harbor. The plane never reached its destination, and wreckage was discovered on a beach in Constantine Bay near Unalaska. The circumstances of the crash and the fate of Sias and his passenger William Cork remain unknown after nearly three decades.
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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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timeline
Lead #4Why did the aircraft fail to reach Dutch Harbor on what should have been a routine 20-minute flight?
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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
White Grumman Turbine G-21A Goose (N660PA) departed Anderson Bay with Nichol Paul Sias and William Cork on a scheduled 20-minute flight to Dutch Harbor
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1996-08-11
Wreckage found
Part of the aircraft was discovered on the 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:June 12, 2026
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Phone: 9072695511
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Case Information
Incident:August 11, 1996 at 4:10 PM
Last Updated:June 12, 2026
Have Information?
Any information, no matter how small, could be crucial to solving this case.
Phone: 9072695511
You can remain anonymous