Individually Owned: 150,657
Corporate Owned: 137,281
Lincoln Regional Airport
Aircraft Accident/Incident Report
Lincoln, California 95648
Saturday, August 1, 1998 12:15 PDT
NTSB Narrative Summary Released at Completion of Accident
Both aircraft collided on short final approach to the runway. Examination of both aircraft disclosed that the Yak-55M descended on top of the Cessna 172 while over the threshold. The pilot of the Yak-55M stated that he was returning to the field after practicing aerobatic maneuvers and entered left traffic for runway 15 by crossing over the runway at midfield. As he overflew the runway he heard an aircraft call on final approach for runway 15 over the CTAF. He observed an aircraft on a 1/2-mile final and followed that aircraft on a short turning base to final approach. As he rolled out on final and prepared to flare, he felt the collision with an unseen aircraft. The pilot of the Cessna 172 stated that he was in the traffic pattern practicing takeoffs and landings. He said that he called on the CTAF number three for landing behind a Cessna 150 and extended his pattern slightly to allow time for that aircraft to clear the runway. The pilot also reported that he announced his position while on base and final approach. Just as he was flaring the aircraft, he felt a jolt and the aircraft was forced down onto the runway. The pilot of a Cessna 150 in the pattern behind the Cessna 172 stated that he was on downwind when the Yak-55M crossed over the field and cut him off while turning on downwind. The witness reported that the Yak-55M nearly hit his aircraft.
NTSB Probable Cause Narrative
The pilot's inadequate visual lookout.
Event Information
| Type of Event | Accident |
| Event Date | 8/1/1998 |
| Event Day of the Week | Saturday |
| Time of Event | 1215 |
| Event Time Zone | Pacific Daylight Time |
| Event City | LINCOLN |
| Event State | CALIFORNIA |
| Event Country | -- |
| Zipcode of the event site | 95648 |
| Event Date Year | 1998 |
| Event Date Month | 8 |
| MidAir Collision Indicator | Yes |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | LINCOLN REGIONAL |
| Event Location Nearest Airport ID | LHM |
| 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 | 123 |
| Weather Briefing Completeness | Unknown |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1150 Pacific Daylight Time |
| Direction of event from weather observation facility (degrees) | 300 |
| Weather Observation Facility ID | MYV |
| Elevation of weather observation facility | 62 |
| Distance of event from weather observation facility (units?) | 12 |
| Time Zone of the weather observation | PDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 0 |
| Lowest Non-Ceiling Height | 0 |
| Sky/Lowest/Cloud Conditions | Clear |
| Sky Condition for Lowest Ceiling | None |
| Visibility Runway Visual Range (Feet) | 0 |
| Visibility Runway Visual Value (Statute Miles) | 0 |
| Visibility (Statute Miles) | 45 |
| Air Temperature at event time (in degrees celsius) | 32 |
| Dew Point at event time (in degress fahrenheit) | 17 |
| Wind Direction (degrees magnetic) | 0 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 0 |
| Wind Velocity Indicator | Light and Variable |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 30 |
| 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) | 1442 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Aug 1 1998 12:00AM |
| NTSB Notification Time | 1230 |
| Fiche Number and/or location -used to find docket information | IMAGE |
| Date of most recent change to record | Dec 11 2000 11:42AM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
||
|---|---|---|
Aircraft #1 |
Aircraft #2 |
|
| Aircraft Registration Number | N910RT | N4451R |
| NTSB Number | LAX98LA253A | LAX98LA253B |
| Missing Aircraft Indicator | N | N |
| Federal Aviation Reg. Part | Part 91: General Aviation | Part 91: General Aviation |
| Type of Flight Plan filed | None | None |
| Flight plan Was Activated? | -- | -- |
| Damage | Substantial | Substantial |
| Aircraft Fire | None | None |
| Aircraft Explosion | None | None |
| Aircraft Manufacturer's Full Name | Yakovlev | Cessna |
| Aircraft Model | YAK-55M | 172M |
| Aircraft Series Identifier | YAK-55M | 172M |
| Aircraft Serial Number | 0910 | 17263193 |
| Certified Max Gross Weight | 1580 | 2300 |
| Aircraft Category | Airplane | Airplane |
| Aircraft Registration Class | U.S. Registered/U.S. Soil | U.S. Registered/U.S. Soil |
| Aircraft is a homebuilt? | No | No |
| Flight Crew Seats | -- | -- |
| Cabin Crew Seats | -- | -- |
| Passenger Seats | -- | -- |
| Total number of seats on the aircraft | 2 | 4 |
| Number of Engines | 1 | 1 |
| Fixed gear or retractable gear | Fixed | Fixed |
| Aircraft, Type of Last Inspection | Annual | Annual |
| Date of Last Inspection | Apr 25 1998 12:00AM | Jul 24 1998 12:00AM |
| Airframe hours since last inspection | -- | 4 |
| Airframe Hours | 105 | 1542 |
| ELT Installed | Yes | Yes |
| ELT Activated | Unknown | Yes |
| ELT Aided Location of Event Site | Unknown | No |
| ELT Type | -- | -- |
| Aircraft Owner Name | ROBERT T. THIESSEN | SANDRA J. LEDREW |
| Aircraft Owner Street Address | 6151 SHADOW LANE, #139 | 316 COMSTOCK COURT |
| Aircraft Owner City | CITRUS HEIGHTS | ROSEVILLE |
| Aircraft Owner State | CA | CA |
| Aircraft Owner Country | ||
| Aircraft Owner Zipcode | 95621 | 95747 |
| Operator is an individual? | -- | -- |
| Operator Name | ATKIN AIR | |
| Operator Same as Owner? | Yes | No |
| Operator Is Doing Business As | -- | -- |
| Operator Address Same as Owner? | Yes | No |
| Operator Street Address | 1420 FLIGHTLINE DRIVE, SUITE B | |
| Operator City | LINCOLN | |
| Operator State | CA | |
| Operator Country | ||
| Operator Zip code | 95648 | |
| Operator Code | ||
| Owner has at least one certificate | None | None |
| Other Operator of large aircraft? | No | No |
| Certified for Part 133 or 137 Operation | Unknown | 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 | Personal |
| Second Pilot on Board | No | No |
| Departure Point Same as Event | Yes | Yes |
| Departure Airport Code | LHM | LHM |
| Departure City | ||
| Departure State | ||
| Departure Country | ||
| Departure Time | 1200 | 1130 |
| Departure Time Zone | PDT | PDT |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere | dest & departure same, accident can occur anywhere |
| Destination Airport Code | ||
| Destination City | ||
| Destination State | ||
| Destination Country | ||
| Specific Phase of Flight | Approach | Approach |
| Report sent to ICAO? | -- | -- |
| Evacuation occurred | -- | -- |
| Date of most recent change to record | Jan 2 2001 10:34AM | Jan 2 2001 10:34AM |
| User who most recently changed record | dbo | dbo |
| Since inspection or accident | -- | -- |
| Event Location Runway Number and Location | 15 | 15 |
| Runway Length | 6001 | 6001 |
| Runway Width | 100 | 100 |
| Sight Seeing flight | No | No |
| Air Medical Flight | No | No |
| Medical Flight | -- | -- |