THC was the prime factor.
Operators in Canada and the U.S. were warned to be sure ELTs secured by hook and loop systems are appropriately retained. Air Tindi issued several company directives including these:
All scheduled flights will be dispatched under IFR. VFR flight may only be conducted if authorized by operations management personnel.
No company aircraft may be operated on any scheduled passenger flight when the observed weather is at, or forecast to be lower than, the alternate minima for the destination airport.
The airline also instituted changes to the operational control system of scheduled passenger flights to ensure adequate flight following and timely reporting of departure and arrival times to the company System Operations Control Center.
The company has also begun installing Appareo Vision 1000 Systems cockpit imaging and flight data monitoring devices in its208B fleet. The data recorded by this equipment can be helpful in incident/accident investigation.
Finally, the company has revised the existing drug and alcohol policy to include random testing of employees in safety-sensitive positions. These positions include pilots, maintenance engineers and dispatch personnel.