Aircraft lands With Just 6 Minutes of Fuel Left ATC’s award winning flight assist

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On 30 November 2015, a Dassault Falcon 10 approaching Nome, Alaska, reached the point where the destination was no longer a dependable option. Low cloud, snow and freezing fog had already defeated two landing attempts. The pilot asked Anchorage Center for another airport, and controllers Ronald Sparks and Mike Thomas directed him toward Unalakleet, about 100 miles away. The pilot was uncomfortable with the unfamiliar diversion and briefly considered returning to Nome, but the controllers knew the destination weather had deteriorated and the available fuel was shrinking.

Accident Facts

Date
30 November 2015
Registration
N256V
Timeline
30 November 2015 —
Falcon 10 N256V entered Anchorage Center airspace while operating toward Nome.
1.
First approach to Nome —
The pilot attempted to land but was unable to complete the approach.
2.
Second approach —
The pilot made another attempt and again could not land because of the deteriorating conditions.
3.
After the second attempt —
The pilot asked controllers for an airport with better weather within reach.
4.
During the diversion —
Sparks and Thomas identified Unalakleet and began vectoring N256V toward it.
5.
During the diversion —
The pilot considered returning to Nome, but the controllers advised continuing because the weather at Nome had worsened and fuel was limited.
6.
Near Unalakleet —
The pilot reported about 15 minutes of fuel and three people aboard, then discovered he did not have the airport's normal approach plates.
7.
Final approach —
The controllers supplied the necessary airport, weather and approach information using the aircraft's available navigation database.
8.
After roughly 90 minutes of assistance —
N256V landed at Unalakleet with six minutes of fuel remaining.
9.

Two failed approaches changed the problem

The first critical fact is that the fuel emergency did not begin with an engine malfunction. The problem developed because the destination became progressively less usable. Nome's weather included very poor visibility, snow and freezing fog, and the pilot could not complete two approaches.

That created a decision problem in which the most familiar airport was not necessarily the safest one. Unalakleet was roughly 100 miles east and had better conditions. Sparks and Thomas used the weather information available to them to identify it and began directing the Falcon 10 there.

The pilot wanted the airport he knew

The diversion became more difficult when the pilot became nervous about continuing toward an unfamiliar airport. NATCA's account records that he wanted to return to Nome. The controllers did not simply comply. They knew the weather at Nome was worsening and that the aircraft was running low on fuel.

The controllers' role was therefore not limited to giving headings. They had information the pilot did not have from inside the cockpit: current destination weather and the broader picture of the route. They used that information to keep the aircraft moving toward an airport that still offered a viable landing opportunity.

The last obstacle was the approach information

Reaching Unalakleet did not automatically solve the problem. The pilot realized that he did not have the appropriate approach plates. The controllers established that the aircraft's navigation database still contained the airport information and provided the additional details needed to make the approach usable.

By the end of the event, the aircraft had been in communication with the controllers for roughly an hour and a half. The pilot landed with six minutes of fuel remaining. NATCA later recognized Sparks and Thomas with the Archie League Medal of Safety Award.

The documented finding

“The pilot landed successfully with just six minutes of fuel remaining.” — National Air Traffic Controllers Association

Conclusion

The most consequential decision in the event occurred before the final approach. Once two attempts at Nome had failed, the problem was no longer simply how to land at the destination—it was where to land before the aircraft lost the fuel margin needed to make another decision. Sparks and Thomas combined weather information, geographic knowledge, navigation support and steady communication to move the aircraft toward an airport the pilot did not know well. The six-minute fuel figure is the final measure of how narrow the remaining margin became.

Sources

Audio from the original air traffic control recording, sourced from public recordings and released investigation records. The reconstruction, animation and written account are our own.
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