Investigation report into the Tanzania plane crash says, divers were unable to launch a rescue operation at Lake Victoria site of the crash due to lack of oxygen in their cylinders.
According to the report, the police marine unit arrived at the site of the crash four hours later with only one rescue boat, and did not have enough fuel.
It further says, more lives may have been saved if rescue efforts started sooner.
At least nineteen people died after the plane plunged into the Lake on sixth of this month.
The investigation also points out there was bad weather including thunderstorms and strong winds before the privately owned precision Air flight crashed into the Lake.