# NTSB IAD05CA014: Cessna 172S, N2120M, Mansfield, MA, November 19, 2004 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: November 19, 2004, 11:25 local (16:25 UTC) - Place: Mansfield, MA - Coordinates: 42, -71.196662 - Nearby events: https://openairdocs.org/map.md?lat=42.0000&lon=-71.1967&mi=10 - Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report February 24, 2005 - Report: Approved by Office Director - Parties: FAA/FSDO - NTSB case key (mKey): 60583 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=IAD05CA014 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/60583/pdf - Page: https://openairdocs.org/ntsb/IAD05CA014 ## Probable cause The pilot's improper decision to taxi on a closed taxiway, and his misjudgment of obstacle clearance. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - On ground/water collision with object, taxi - to takeoff - airport facilities,taxiway condition - closed - improper decision, pilot in command (cause) - clearance - misjudged, pilot in command (cause) - object - vehicle ## Analysis The student pilot, who had not flown for approximately 30 days, taxied the airplane to the runway for takeoff. When the pilot encountered barricades that were blocking an area of the taxiway closed for construction, he taxied around them. The left wing of the airplane then struck a construction vehicle parked on the left side of the taxiway. The airplane pivoted left and impacted the right side of the vehicle. ## Factual narrative On November 19, 2004, at 1125 eastern standard time, a Cessna 172S, N2120M, was substantially damaged during a collision with a parked construction vehicle at Mansfield Municipal Airport (1B9), Mansfield, Massachusetts. The certificated student pilot was not injured. Visual meteorological conditions prevailed, and no flight plan was filed for the local instructional flight, conducted under 14 CFR Part 91. According to the pilot's flight instructor, the pilot had flown the airplane solo twice previously. The pilot then did not fly for approximately 30 days. The pilot discussed returning to flight training and the flight instructor stated that he wanted the pilot to fly with an instructor before he could fly solo again. The pilot returned to the airport on the day of the accident and was dispatched an airplane without the instructor's knowledge. According to a written statement submitted by the pilot, he encountered barriers blocking the taxiway, and due to the angle of the barriers, as well as the fact that he saw another airplane holding short of runway, he thought that it was appropriate to proceed past the barriers. According to a witness, he was standing about 100 yards beyond the barriers, and in the middle of the taxiway, when he observed the accident airplane going around the barriers to the left side and into the construction area. The witness began walking toward the airplane and waving his arms in the air in an attempt to alert the pilot. The pilot stopped momentarily behind trucks parked on the right side of the taxiway, then continued down the taxiway about 4 to 5 feet left of the centerline. The left wing of the airplane struck a construction vehicle parked on the left side of the taxiway. The airplane pivoted left and impacted the right side of the vehicle. When the witness asked the pilot why he did not stop, the pilot stated that he thought he had seen other airplanes go through that area. The weather reported at Taunton Municipal Airport (TAN), about 11 nautical miles southeast, at 1152, included winds from 330 degrees at 9 knots, 10 statute miles visibility, and clear skies below 12,000 feet. ## Aircraft - Registration: [N2120M](https://openairdocs.org/deregistered/N2120M-2013-09-30), registration cancelled 2013-09-30, S/N 172S9627 (OpenAirDocs) - Reported make and model: Cessna 172S - Registry model: [Cessna 172S](https://openairdocs.org/model/cessna-172s) (registry code 2072439) (OpenAirDocs) - Category: Airplane - Serial number: 172S9627 - Engines: Lycoming IO-360 reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Operator: KING Aviation Mansfield - Registered owner: TJW Aviation LLC - Airworthiness certificate: Standard, Normal - Departed: 1B9, Mansfield, MA - Airport: 1B9, Mansfield Municipal Airport, runway 23 ## Flight crew As NTSB recorded them. NTSB leaves out names. - Student pilot; age 40; injuries: none; student; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 23 total, 23 in this make and model, 13 in the last 90 days ## Weather - Conditions: Visual (VMC), Day - Wind: 330° at 9 knots - Visibility: 10 statute miles - Temperature: 63 °F, dew point 45 °F - Altimeter: 30.02 inHg - Observed at: TAN, 11 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 20041119029509A](https://openairdocs.org/incident/20041119029509A), Nov 19, 2004: Cessna 172S, Mansfield, MA, Substantial damage. (-23) Accident date: November 19, 2004 Mansfield Municipal Airport (1B9) Mansfield ma.[privacy data omitted](Student pilot) N2120M CE-172-S s/n 172S9627… 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.