Na Airport
Aircraft Accident/Incident Report

Sterling, Kansas 67579
Wednesday, February 13, 2008 12:55 CST

NTSB Narrative Summary Released at Completion of Accident

The airplane was in cruise flight at 6,000 feet mean sea level when it entered an uncontrolled descent and impacted terrain in a right wing low attitude. The airplane cartwheeled, impacted a cow, and scattered components and debris over a distance of 668 feet. Examination of both stabilators revealed extensive aft streaking, initiating along the forward rivet line, consistent with working or "smoking" rivets. Examination of the stabilator trim tab fittings exhibited little deformation and the inboard rivet faces had been knocked off. The stabilator trim pushrod was not attached. The securing nut and cotter pin, used to secure the pushrod to the tab was missing. The lack of deformation to the trim pushrod is indicative that the securing nut backed out during flight. The stabilator trim bellcrank, left side, was loose within its attach point and exhibited significant freeplay. Disassembly revealed elongation of the attach hole. These observations indicate prolonged inadequate maintenance. A review of the pilot's training, experience, and qualifications revealed no issues.

NTSB Probable Cause Narrative

The loss of pitch control during cruise flight resulting from the separation of the stabilator trim actuator due to inadequate maintenenace.

Event Information

Type of Event Accident
Event Date 2/13/2008
Event Day of the Week Wednesday
Time of Event 1255
Event Time Zone Central Standard Time
Event City Sterling
Event State KANSAS
Event Country --
Zipcode of the event site 67579
Event Date Year 2008
Event Date Month 2
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 380858N
Event Location Longitude 0981913W
Event Location Airport NA
Event Location Nearest Airport ID --
Indicates whether the acc/inc occurred off or on an airport On Airport
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 1252 Central Standard Time
Direction of event from weather observation facility (degrees) 100
Weather Observation Facility ID HUT
Elevation of weather observation facility 1543
Distance of event from weather observation facility (units?) 26
Time Zone of the weather observation CST
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 12
Dew Point at event time (in degress fahrenheit) -2
Wind Direction (degrees magnetic) 200
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 14
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.87
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal 1
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 24432
NTSB Notification Source FAA-Central Region
NTSB Notification Date Feb 13 2008 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Dec 22 2008 10:48AM
User who most recently changed record lema
Basic weather conditions Visual Meteorological Cond
FAA District Office Wichita FAA Flight Standards District Office

Aircraft Involved

Aircraft #1

Aircraft Registration Number N62793
NTSB Number DEN08FA058
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed IFR
Flight plan Was Activated? Yes
Damage Destroyed
Aircraft Fire Ground
Aircraft Explosion None
Aircraft Manufacturer's Full Name Piper
Aircraft Model PA-23-250
Aircraft Series Identifier --
Aircraft Serial Number 27-7754030
Certified Max Gross Weight 5200
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 2
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Jan 1 2008 12:00AM
Airframe hours since last inspection 73
Airframe Hours 10924
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Storm Flying Service Inc
Aircraft Owner Street Address 1524 240th Street
Aircraft Owner City Webster City
Aircraft Owner State IA
Aircraft Owner Country USA
Aircraft Owner Zipcode 50595
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 --
Operator Zip code --
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? --
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) Positioning
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code ICT
Departure City Wichita
Departure State KS
Departure Country USA
Departure Time 1230
Departure Time Zone CST
Destination Same as Local Flt --
Destination Airport Code HYS
Destination City Hays
Destination State KS
Destination Country USA
Specific Phase of Flight Cruise - normal
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record --
User who most recently changed record --
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 --