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Northwest MedStar - Non-injury incident

Date: 5/28/2010 1800 PST

Program: Northwest MedStar

Type: EC 135 P1
Tail #: N312 MS
Operator/Vendor: Metro Aviation Inc.

Weather: Clear. Not a factor

Team: Pilot,Flight RN, Flight RRT. No injuries reported. Patient on board. 

	On May 28, 2010 at 1800, a NW MedStar EC 135 P1 helicopter N312 MS was
	departing a hospital roof top helipad with a patient on board. Almost
	immediately on departure from the roof, the pilot noted that the
	helicopter was not performing as it should, demonstrating a decrease
	in power. The pilot followed the standard operating procedure and did
	a precautionary landing at the near-by airport to assess the
	situation. The pilot determined that one of the engines had
	experienced a compressor stall. The crew requested that another
	aircraft be dispatched to transport the patient. 
	A mechanic arrived and inspected the helicopter, pilot and mechanic
	completed the requirements in accordance with the maintenance manual
	and determined it was airworthy and safe to fly back to Spokane. The
	helicopter was put out of service for the night pending an additional
	maintenance evaluation in the morning. Maintenance conducted a
	compressor wash and borescope inspection and found no defects. The
	aircraft was power checked again and returned to service. 
	The helicopter went back in service Saturday morning around 10am.
	There have been no additional problems. 

Source: Jerry Focht Chief of Logistics

The CONCERN network shares verified information to alert medical transport
programs when an accident / incident has occurred. Please share the above
information with your program staff. If you have further questions, please
contact the CONCERN Coordinator, David Kearns at 800 525 3712 or email:

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