A helicopter pilot reported the yoke mount GPS malfunctioned resulting in restricted airspace entry.

Attributes
ACN	1278465
Time
Date	201507
Local Time Of Day	0601-1200
Environment
Light	Daylight
Aircraft 1
Make Model Name	Helicopter
Operating Under FAR Part	Part 137
Flight Phase	Cruise
Route In Use	None
Flight Plan	None
Component
Aircraft Component	GPS & Other Satellite Navigation
Person 1
Function	Pilot Flying Single Pilot
Qualification	Flight Crew Commercial Flight Crew Flight Instructor Flight Crew Instrument Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 70 Flight Crew Total 15600
Events
Anomaly	Aircraft Equipment Problem Less Severe Airspace Violation All Types Deviation - Procedural FAR

Narrative:

While circumnavigating a restricted area my portable GPS yoke mounted unit malfunctioned and locked up. After trying to get it unlocked and usable to no avail; I rebooted the unit. When the unit came back on it indicated that I had inadvertently entered into the edge of the restricted area. I immediately made a turn and exited out of the area. I feel that an additional backup unit online in the aircraft would have prevented this.

Original NASA ASRS Text

Title: A helicopter pilot reported the yoke mount GPS malfunctioned resulting in restricted airspace entry.

Narrative: While circumnavigating a Restricted area my portable GPS yoke mounted unit malfunctioned and locked up. After trying to get it unlocked and usable to no avail; I rebooted the unit. When the unit came back on it indicated that I had inadvertently entered into the edge of the Restricted area. I immediately made a turn and exited out of the area. I feel that an additional backup unit online in the aircraft would have prevented this.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.