# NTSB SEA02LA048: Cessna 152, N24933, Longmont, CO, March 4, 2002 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: March 4, 2002, 09:45 local (16:45 UTC) - Place: Longmont, CO - Coordinates: 40.163612, -105.16278 - Nearby events: https://openairdocs.org/map.md?lat=40.1636&lon=-105.1628&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report April 25, 2002 - Report: Approved by Office Director - NTSB case key (mKey): 54298 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA02LA048 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/54298/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=54298 - Page: https://openairdocs.org/ntsb/SEA02LA048 ## Probable cause The pilot's failure to maintain directional control of the aircraft during landing. Factors were a contaminated runway, which was icy and covered with snow, and a snow bank. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - On ground/water collision with object, landing - roll - aircraft control - not maintained, pilot in command (cause) - terrain condition - snowbank (contributing factor) - airport facilities,runway/landing area condition - snow covered (contributing factor) - airport facilities,runway/landing area condition - icy (contributing factor) ## Analysis The pilot was practicing touch-and-go landings. During the rollout, the aircraft contacted snow on the runway, and drifted left of the runway centerline, despite the pilot's corrective control inputs. The aircraft departed the north side of the runway, contacted a snow bank, and nosed over. There was a NOTAM-D in effect which reported 1/2 inch of packed snow over ice, braking action poor, for the time of the accident. ## Factual narrative On March 4, 2002, at 0945 mountain standard time, a Cessna 152, N24933, sustained substantial damage when it collided with a snow bank at Vance Brand Airport (2V2), in Longmont, Colorado. The student pilot, the sole occupant, was not injured. The aircraft is owned and operated by Air West Flight Center, Inc. of Longmont, Colorado, and was being operated as a visual flight rules (VFR) instructional flight under the provisions of Title 14 CFR Part 91. Visual meteorological conditions prevailed, and no flight plan was filed for the local flight. The pilot reported that he was practicing touch-and-go landings on runway 29. He stated that the touch down and initial rollout were normal, but as the airplane decelerated it began to drift to the left of runway centerline. The pilot attempted to correct the situation with rudder inputs; however, the airplane continued to track to the left. The airplane departed the left side of the runway, collided with a three-foot snow bank, and nosed over. The airplane sustained substantial damage to the firewall and empennage. At 0945 the Aviation Routine Weather Report (METAR) at Jeffco Airport (KBJC), located 16 nautical miles south of the accident site reported winds from 280 degrees at 10 knots, 80 statue miles visibility, scattered clouds at 20,000 feet, temperature 4 degrees Celsius, dew point minus 12 degrees Celsius, and an altimeter setting of 30.12 inches. There was a Notice to Airmen (NOTAM-D) in effect for Vance Brand Airport between March 1, 2002 at 1147 and March 4, 2002 at 1223, for 1 /2 inch of packed snow over ice and braking action poor. The pilot reported on the NTSB Pilot/Operator Aircraft Accident Report Form no mechanical malfunctions or failures at the time of the accident. ## Aircraft - Registration: [N24933](https://openairdocs.org/aircraft/N24933), registered now, S/N 15280457, built 1977 (OpenAirDocs) - Reported make and model: Cessna 152 - Registry model: [Cessna 152](https://openairdocs.org/model/cessna-152) (registry code 2071835) (OpenAirDocs) - Registry engine: [Lycoming 0-235 series](https://openairdocs.org/engine/lycoming-0-235-series) (registry code 41505, 4 cycle) (OpenAirDocs) - Category: Airplane - Serial number: 15280457 - Engines: Lycoming O-235-L2C 110 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Registered owner: Air West Flight Center Inc - Airworthiness certificate: Standard, Normal; Standard, Utility - Departed: 2V2, Longmont, CO - Destination: Longmont, CO - Airport: 2V2, Longmont, Vance Brand, runway 29, 4,800 × 75 ft, concrete ## Flight crew As NTSB recorded them. NTSB leaves out names. - Student pilot; age 31; injuries: none; student; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 35 total, 31 in this make and model, 2 as pilot in command, 15 in the last 90 days, 11 in the last 30 days, 2 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 280° at 10 knots - Visibility: 80 statute miles - Lowest ceiling: none - Temperature: 36 °F, dew point 10 °F - Altimeter: 30.12 inHg - Observed at: KBJC, 16 nm away ## FAA reports on this event (1) The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs). - [Accident 20020304003879A](https://openairdocs.org/incident/20020304003879A), Mar 4, 2002: Cessna 152, Longmont, CO, No damage. (-23) On March 4, 2002, at approximately 9:30 am mountain standard time, Mr. Illing, a student pilot was conducting touch and go landings on runway 29 at the… ## Docket (1 files) The files NTSB released with the investigation on April 1, 2002, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=54298. 361 KB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 361 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40391953&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Redacted.PDF From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.