Individually Owned: 150,657
Corporate Owned: 137,281
Aircraft Accident/Incident Report
Alamosa, Colorado 81101
Monday, April 3, 1989 9:40 MDT
NTSB Narrative Summary Released at Completion of Accident
DURING FLT AT 16,000 FT, THE ENG LOST POWER & BEGAN VIBRATING. THE PLT CONTACTED ARTCC & ANNOUNCED HIS INTENTIONS TO MAKE A FORCED LANDING AT THE ALAMOSA ARPT. HOWEVER, HE WAS UNABLE TO REACH THE ARPT & SELECTED A FIELD ABOUT 1 MI AWAY.DURING THE LANDING, THE ACFT ENCTRD SVRL IRRIGATION DITCHES & THE GEAR COLLAPSED. AN EXAM REVEALED THE ENG CRANKSHAFT HAD FAILED AT THE #2 & #3 JOURNALS. THERE WAS EVIDENCE THAT THE #2 PIN HAD FAILED FROM FATIGUE, THEN THE #3 PIN FAILED FROM OVERLOAD.
NTSB Probable Cause Narrative
FATIGUE FAILURE OF THE ENGINE CRANKSHAFT. A FACTOR RELATED TO THE ACCIDENT WAS: THE TERRAIN CONDITION IN THE EMERGENCY LANDING AREA.
Event Information
| Type of Event | Accident |
| Event Date | 4/3/1989 |
| Event Day of the Week | Monday |
| Time of Event | 940 |
| Event Time Zone | Mountain Daylight Time |
| Event City | ALAMOSA |
| Event State | COLORADO |
| Event Country | -- |
| Zipcode of the event site | 81101 |
| Event Date Year | 1989 |
| Event Date Month | 4 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| 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 | 0 |
| Degrees magnetic from airport | 0 |
| Airport Elevation | 0 |
| Weather Briefing Completeness | Not pertinent |
| Investigator's weather source | Pilot |
| Time of the weather observation | 0 |
| Direction of event from weather observation facility (degrees) | 0 |
| Weather Observation Facility ID | |
| Elevation of weather observation facility | 0 |
| Distance of event from weather observation facility (units?) | 0 |
| Time Zone of the weather observation | |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 0 |
| Lowest Non-Ceiling Height | 14000 |
| Sky/Lowest/Cloud Conditions | Scattered |
| Sky Condition for Lowest Ceiling | None |
| Visibility Runway Visual Range (Feet) | 0 |
| Visibility Runway Visual Value (Statute Miles) | 0 |
| Visibility (Statute Miles) | 30 |
| Air Temperature at event time (in degrees celsius) | 18 |
| Dew Point at event time (in degress fahrenheit) | -- |
| Wind Direction (degrees magnetic) | 0 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 0 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Unknown |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | -- |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | Unknown |
| METAR weather report | -- |
| Event Highest Injury | None |
| On Ground, Fatal Injuries | 0 |
| On Ground, Minor Injuries | 0 |
| On Ground, Serious Injuries | 0 |
| Injury Total Fatal | -- |
| Injury Total Minor | -- |
| Injury Total None | 2 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 1389 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Apr 3 1989 12:00AM |
| NTSB Notification Time | 1025 |
| Fiche Number and/or location -used to find docket information | 39689 |
| Date of most recent change to record | Dec 13 2000 12:35PM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N48DL |
| NTSB Number | DEN89LA098 |
| Missing Aircraft Indicator | N |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | IFR |
| Flight plan Was Activated? | -- |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | PIPER |
| Aircraft Model | PA-28RT-201T |
| Aircraft Series Identifier | PA-28RT-20 |
| Aircraft Serial Number | 28R-8231025 |
| Certified Max Gross Weight | 2900 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | U.S. Registered/U.S. Soil |
| Aircraft is a homebuilt? | No |
| Flight Crew Seats | -- |
| Cabin Crew Seats | -- |
| Passenger Seats | -- |
| Total number of seats on the aircraft | 4 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Jun 3 1988 12:00AM |
| Airframe hours since last inspection | 126 |
| Airframe Hours | 1314 |
| ELT Installed | Yes |
| ELT Activated | Yes |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | DEAN P LYONS, M.D. |
| Aircraft Owner Street Address | 610-06 N 4TH STREET |
| Aircraft Owner City | BURLINGTON |
| Aircraft Owner State | IA |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 52601 |
| Operator is an individual? | -- |
| Operator Name | LYONS, DEAN P. |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | 2500 CHARETTE LANE |
| Operator City | BURLINGTON |
| Operator State | IA |
| Operator Country | |
| Operator Zip code | 52601 |
| Operator Code | |
| Owner has at least one certificate | None |
| Other Operator of large aircraft? | No |
| Certified for Part 133 or 137 Operation | Unknown |
| 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) | Personal |
| Second Pilot on Board | No |
| Departure Point Same as Event | No |
| Departure Airport Code | APA |
| Departure City | ENGLEWOOD |
| Departure State | CO |
| Departure Country | |
| Departure Time | 800 |
| Departure Time Zone | MDT |
| Destination Same as Local Flt | -- |
| Destination Airport Code | FMN |
| Destination City | FARMINGTON |
| Destination State | NM |
| Destination Country | |
| Specific Phase of Flight | Landing |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jan 2 2001 10:35AM |
| User who most recently changed record | dbo |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 0 |
| Runway Length | 0 |
| Runway Width | 0 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |