Vance Brand Airport
Aircraft Accident/Incident Report

Longmont, Colorado 80504
Friday, March 23, 2012 11:43 MDT

NTSB Narrative Summary Released at Completion of Accident

Radar track data depicted the accident airplanes on gradually converging flight paths prior to the accident. Immediately before the collision, the Cessna 172 appeared to be on a north-northeast course in level flight at 7,200 feet mean sea level (msl), and the Cessna 180 was in a gradual climb from 6,800 feet msl to 7,000 feet msl on a north course. Day visual meteorological conditions prevailed at the time of the accident, with reported visibilities at 60 miles. Neither pilot was receiving air traffic control advisories at the time of the collision. The radar track associated with the Cessna 180 indicated that after the collision the airplane entered a 270-degree right turn before proceeding to the west. The Cessna 172 continued northbound, as it entered a descent and impacted the ground. The pilot of the Cessna 180 airplane stated that she heard a loud bang during cruise flight and the airplane immediately pitched up and rolled into right bank. She subsequently determined that elevator control was limited. The pilot attempted to divert to a local airport, but was unable to land on a runway due to the impaired airplane control. She executed a forced landing to an open area adjacent to the airport. A witness reported that the right horizontal stabilizer of the Cessna 180 appeared to be bent down about 90 degrees at mid-span as the airplane approached for the forced landing. The outboard portion of the right horizontal stabilizer of the Cessna 180 airplane was structurally compromised, which resulted in a nearly complete loss of pitch control. The pilot of the Cessna 180 airplane retained marginal pitch control by varying engine power during the remainder of the flight. A postaccident examination did not reveal any pre-collision failures or malfunctions associated with either airplane. The examination determined that the left aileron/wing of the Cessna 172 likely contacted the right horizontal stabilizer of the Cessna 180 in flight. The outboard portion of the left wing on the Cessna 172 was structurally compromised, rendering the airplane uncontrollable. Regulations required that each person operating an aircraft maintain vigilance so as to "see and avoid other aircraft."

NTSB Probable Cause Narrative

The inadequate visual lookout by the pilots of both airplanes, which resulted in a mid-air collision.

Event Information

Type of Event Accident
Event Date 3/23/2012
Event Day of the Week Friday
Time of Event 1143
Event Time Zone Mountain Daylight Time
Event City Longmont
Event State COLORADO
Event Country --
Zipcode of the event site 80504
Event Date Year 2012
Event Date Month 3
MidAir Collision Indicator Yes
On Ground Collision occurred ? --
Event Location Latitude 400913N
Event Location Longitude 1050319W
Event Location Airport Vance Brand
Event Location Nearest Airport ID LMO
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 5
Degrees magnetic from airport --
Airport Elevation 5055
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1155 Mountain Daylight Time
Direction of event from weather observation facility (degrees) 181
Weather Observation Facility ID BJC
Elevation of weather observation facility 5673
Distance of event from weather observation facility (units?) 13
Time Zone of the weather observation MDT
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height 25000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 60
Air Temperature at event time (in degrees celsius) 19
Dew Point at event time (in degress fahrenheit) -12
Wind Direction (degrees magnetic) --
Variable Wind Indicator Variable
Wind Speed (knots) 6
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.02
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report KEIK 231755Z AUTO 13007KT 10SM CLR 20/M08 A2999 K
Event Highest Injury Fatal
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal 2
Injury Total Minor 1
Injury Total None --
Injury Total Serious --
Injury Total All 3
Investigating Agency NTSB
NTSB Docket Number (internal use) 30074
NTSB Notification Source FAA-ROC
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Jun 29 2012 4:49PM
User who most recently changed record bakd
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft #2

Aircraft Registration Number N10468 N9325C
NTSB Number CEN12FA199A CEN12FA199B
Missing Aircraft Indicator -- --
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 CESSNA CESSNA
Aircraft Model 172S 180
Aircraft Series Identifier -- --
Aircraft Serial Number 172S9817 31723
Certified Max Gross Weight -- --
Aircraft Category Airplane Airplane
Aircraft Registration Class -- --
Aircraft is a homebuilt? No No
Flight Crew Seats -- --
Cabin Crew Seats -- --
Passenger Seats -- --
Total number of seats on the aircraft 4 4
Number of Engines 1 1
Fixed gear or retractable gear Fixed Fixed
Aircraft, Type of Last Inspection Annual Annual
Date of Last Inspection Feb 2 2012 12:00AM Mar 12 2012 12:00AM
Airframe hours since last inspection 62 1
Airframe Hours 1955 4209
ELT Installed Yes Yes
ELT Activated Unknown Unknown
ELT Aided Location of Event Site No No
ELT Type -- --
Aircraft Owner Name MountainAir Aviation Services LLC Beverly J. Cameron
Aircraft Owner Street Address -- --
Aircraft Owner City Superior Erie
Aircraft Owner State CO CO
Aircraft Owner Country USA USA
Aircraft Owner Zipcode 80027 80516
Operator is an individual? No Yes
Operator Name McAir Aviation LLC Beverly J. Cameron
Operator Same as Owner? No Yes
Operator Is Doing Business As -- --
Operator Address Same as Owner? No Yes
Operator Street Address -- --
Operator City Broomfield Erie
Operator State CO CO
Operator Country USA USA
Operator Zip code 80021 80516
Operator Code -- --
Owner has at least one certificate None None
Other Operator of large aircraft? No 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 Personal
Second Pilot on Board Yes No
Departure Point Same as Event No No
Departure Airport Code BJC EIK
Departure City Broomfield Erie
Departure State CO CO
Departure Country USA USA
Departure Time 1132 1136
Departure Time Zone MDT MDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere dest & departure same, accident can occur anywhere
Destination Airport Code BJC EIK
Destination City Broomfield Erie
Destination State CO CO
Destination Country USA USA
Specific Phase of Flight -- --
Report sent to ICAO? -- --
Evacuation occurred -- --
Date of most recent change to record Jun 26 2012 12:19PM Jun 26 2012 12:22PM
User who most recently changed record sort sort
Since inspection or accident Last Inspection Last Inspection
Event Location Runway Number and Location N/A N/A
Runway Length -- --
Runway Width -- --
Sight Seeing flight No No
Air Medical Flight No No
Medical Flight -- --