Late Friday night, pilot Ken Houston, a patient and two nurses took off from the rooftop helipad at Providence St. Peter Hospital in Olympia.

Administrators say the helicopter suddenly lost power and fell about 70 feet, crashing between two hospital buildings. No one was hurt.

In late September, three Airlift Northwest employees died when the exact same model helicopter crashed into Puget Sound. The cause of that crash has not been determined.

Video: Dozens Mourn Lost Airlift Crew Images: Coast Guard Searches For Wreckage

The month-old Airlift Northwest copter that crashed at an Olympia hospital Friday was so new it hadn't had its first scheduled maintenance.

"I need to make a statement to our own people as well as to the community that it serves. That this is a program that operates very very safely, " said Dr. Michael Compass with Airlift Northwest.

Independent auditors will now examine the organization's past and present safety practices and observe employees while they work.

The company has suffered four crashes in the last decade. When compared to other organizations that handle the same volume of transports, Compass said the company's safety record is usually on par or better.

Previous Stories: October 6, 2005: Emergency Workers Mourn Lost Copter Crew October 6, 2005: Nurse Identified As Body Recovered From Airlift Crash