Aircraft Accident/Incident Report

Pontiac, Michigan 48327
Thursday, April 17, 2008 18:30 EDT

NTSB Narrative Summary Released at Completion of Accident

The instructor pilot reported that the pilot receiving training had completed a simulated engine failure of the right engine. Upon completion of the maneuver, he attempted to re-trim the rudder trim since it was set at 58 percent left trim. The rudder trim did not respond. The instructor pilot switched to Alternate trim but without success. The pilots followed the checklist items found in the Quick Reference Handbook (QRH) but without success. The manual trim did not correct the condition with the airspeed at about 200 knots. The instructor pilot executed a precautionary landing without incident. The airplane was shut down. When the airplane was restarted, the condition was corrected and the rudder trim operated normally. On April 30, 2008, Eclipse Aviation issued a Customer Pilot Communication (CPC) No. 500-2008-007 titled "Rudder Trim Operation." The CPC stated, "There have been several instances of Eclipse 500 operators reporting an inability to actuate the rudder trim following acceleration from a practice single engine event. It was determined that this is caused by trimming rudder for a slow airspeed and then accelerating without removing trim, significantly increasing the trim tab loading and exceeding the trim motor design stalling point. This is considered normal operation, as it is a feature of the design to prevent excessive rudder loads."

NTSB Probable Cause Narrative

The inadvertent stalling of the rudder trim actuator motor during flight due to the pilot's unintentional exceedence of the motor's design limit for stalling while accelerating after completing a simulated engine-out maneuver.

Event Information

Type of Event Incident
Event Date 4/17/2008
Event Day of the Week Thursday
Time of Event 1830
Event Time Zone Eastern Daylight Time
Event City Pontiac
Event State MICHIGAN
Event Country --
Zipcode of the event site 48327
Event Date Year 2008
Event Date Month 4
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 423956N
Event Location Longitude 0832510W
Event Location Airport --
Event Location Nearest Airport ID --
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1753 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 140
Weather Observation Facility ID PTK
Elevation of weather observation facility 980
Distance of event from weather observation facility (units?) 23
Time Zone of the weather observation EDT
Lighting Conditions Dusk
Lowest Ceiling Height 24000
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions --
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 23
Dew Point at event time (in degress fahrenheit) 6
Wind Direction (degrees magnetic) 220
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 6
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.97
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report KPTK 172153Z 22006KT 10SM OVC240 23/06 A2997 RMK A
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 24617
NTSB Notification Source FAA
NTSB Notification Date Apr 21 2008 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Dec 21 2008 8:02AM
User who most recently changed record guzj
Basic weather conditions Visual Meteorological Cond
FAA District Office FAA Detroit FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N539RM
NTSB Number CHI08IA109
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed IFR
Flight plan Was Activated? Yes
Damage None
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Eclipse Aviation
Aircraft Model EA500
Aircraft Series Identifier --
Aircraft Serial Number 000101
Certified Max Gross Weight 6022
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats 2
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 6
Number of Engines 2
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Continuous Airworthiness
Date of Last Inspection Mar 1 2008 12:00AM
Airframe hours since last inspection --
Airframe Hours 52
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type Unknown
Aircraft Owner Name Lakeshore Leasing LTD
Aircraft Owner Street Address 18 WINDEMERE PL
Aircraft Owner City GROSSE POINTE
Aircraft Owner State MI
Aircraft Owner Country USA
Aircraft Owner Zipcode 48236
Operator is an individual? No
Operator Name --
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City --
Operator State --
Operator Country USA
Operator Zip code --
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation --
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Instructional
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code DET
Departure City Detroit
Departure State MI
Departure Country USA
Departure Time 1815
Departure Time Zone EDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code --
Destination City --
Destination State --
Destination Country USA
Specific Phase of Flight Approach
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Oct 22 2008 3:47PM
User who most recently changed record silj
Since inspection or accident Time of Accident
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --