<< >> NASA ASRS Report 1365780, June 2016

Right-44 pilot reported performing a precautionary off-airport landing after noticing vibration and power loss.

Attributes
ACN	1365780
Time
Date	201606
Local Time Of Day	1201-1800
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Robinson R44
Operating Under FAR Part	Part 91
Flight Phase	Cruise
Component
Aircraft Component	Engine
Person 1
Function	Single Pilot Pilot Flying
Qualification	Flight Crew Commercial Flight Crew Flight Instructor Flight Crew Instrument Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 60 Flight Crew Total 2500 Flight Crew Type 1600
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

I was flying an air tour when I simultaneously noticed a need for an increase in power accompanied by a rapid but noticeable constant vibration. Suspecting a possible issue; I elected to immediately land the helicopter off airport. A normal landing was performed. A mechanical inspection performed on site is still pending at the time of this report. Preliminary findings show a cracked valve in one of the cylinders.

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Original NASA ASRS Text

Title: R-44 pilot reported performing a precautionary off-airport landing after noticing vibration and power loss.

Narrative: I was flying an air tour when I simultaneously noticed a need for an increase in power accompanied by a rapid but noticeable constant vibration. Suspecting a possible issue; I elected to immediately land the helicopter off airport. A normal landing was performed. A mechanical inspection performed on site is still pending at the time of this report. Preliminary findings show a cracked valve in one of the cylinders.

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.