Story perspectives

Frozen Propeller Forces Plane Diversion, No Injuries Reported

12/13/2025

Summary

Story summary

On December 12, a passenger plane operated by Hokkaido Air System diverted to Hakodate Airport due to mechanical issues.
The ATR42-600, carrying 26 people, reported unstable engine power shortly after departing Sapporo Okadama Airport.
The company indicated that a frozen propeller may have caused the instability.
Experts suggested a potential malfunction in the anti-icing device could be responsible for the issue.
There were no injuries among passengers or crew.

1 of 1

Story summary

On December 12, a passenger plane operated by Hokkaido Air System diverted to Hakodate Airport due to mechanical issues.
The ATR42-600, carrying 26 people, reported unstable engine power shortly after departing Sapporo Okadama Airport.
The company indicated that a frozen propeller may have caused the instability.
Experts suggested a potential malfunction in the anti-icing device could be responsible for the issue.
There were no injuries among passengers or crew.