# NTSB ANC01TA048: de Havilland DHC-2, N4793C, Anchorage, AK, April 20, 2001 - Type: NTSB accident investigation - Classification: Accident · No injuries · Final report - Date: April 19, 2001, 16:00 local (Apr 20, 2001, 00:00 UTC) - Place: Anchorage, AK - Coordinates: 61.175277, -149.995834 - Nearby events: https://openairdocs.org/map.md?lat=61.1753&lon=-149.9958&mi=10 - Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report September 26, 2001 - Report: Approved by Office Director - NTSB office: Alaska Regional Office - Parties: FAA-AL-ANC FSDO 03 - NTSB case key (mKey): 53225 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC01TA048 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/53225/pdf - Page: https://openairdocs.org/ntsb/ANC01TA048 ## Probable cause A failure of the pilot to maintain adequate distance/clearance from a cement barricade while taxiing into a parking spot after landing. A factor was the presence of a barricade adjacent to the parking spot. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - On ground/water collision with object, taxi - from landing - object - wall/barricade (contributing factor) - distance - not maintained, pilot in command (cause) ## Analysis At the completion of a local flight, the commercial certificated pilot was taxiing to a parking spot at a maintenance hangar. He maneuvered the airplane toward the parking spot that was bordered by cement barriers. During a turning maneuver, he swung the tail of the airplane to the right, and the outboard end of the right elevator struck one of the barriers. ## Factual narrative On April 19, 2001, about 1600 Alaska daylight time, a wheel/ski equipped deHavilland DHC-2 airplane, N4793C, sustained substantial damage while taxiing from landing at the Lake Hood Strip, Anchorage, Alaska. The airplane was being operated as a visual flight rules (VFR) local area government flight under Title 14, CFR Part 91, when the accident occurred. The airplane was operated by the Civil Air Patrol, Inc., Elmendorf Air Force Base, Anchorage. The commercial certificated pilot, the sole occupant, was not injured. Visual meteorological conditions prevailed. The flight originated at Merrill Field, Anchorage, about 1530. During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC), on April 20, 2001, the pilot reported he was taxiing to a parking spot at the Civil Air Patrol maintenance hangar. He maneuvered the airplane toward the parking spot that was bordered by cement barriers. During a turning maneuver, he swung the tail of the airplane to the right, and the outboard end of the right elevator struck one of the barriers. ## Aircraft - Registration: [N4793C](https://openairdocs.org/deregistered/N4793C-2017-03-21), registration cancelled 2017-03-21, S/N 296, built 1951 (OpenAirDocs) - Reported make and model: de Havilland DHC-2 - Registry model: [Dehavilland BEAVER DHC-2 MK.1](https://openairdocs.org/model/dehavilland-beaver-dhc-2-mk-1) (registry code 2800102) (OpenAirDocs) - Registry engine: [Pratt & Whitney R-985 series](https://openairdocs.org/engine/pratt-whitney-r-985-series) (registry code 52008, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 296 - Engines: P&W R985-AN14 450 horsepower reciprocating - Damage: Substantial damage - Flight: Public aircraft, Part 91 - Registered owner: Civil Air Patrol Inc. - Airworthiness certificate: Standard, Normal - Last inspection: Continuous airworthiness, August 15, 2000, 8,743 hours before - Departed: PAMR, ANCHORAGE, AK - Destination: Z41, ANCHORAGE, AK - Airport: PANC, Anchorage International ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 58; injuries: none; commercial; airplane ratings: single-engine land, multi-engine land, single-engine sea; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; last flight review December 20, 2000; seat: left; flight hours: 1,283 total, 246 in this make and model, 1,205 as pilot in command, 28 in the last 90 days, 18 in the last 30 days, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 284° at 6 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 46 °F, dew point 28 °F - Altimeter: 30.05 inHg - Observed at: PANC ## 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 20010419039819A](https://openairdocs.org/incident/20010419039819A), Apr 19, 2001: Dhav DHC2MK1, Anchorage, AK, Substantial damage. (-23) During a telephone conversation with the pilot on August 1, 2001, he told this inspector that as he was returning from a flight in a DHC-2, he was… ## Other investigations on N4793C (1) 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. - [NTSB ANC10LA044](https://openairdocs.org/ntsb/ANC10LA044), May 24, 2010: Dehavilland Beaver DHC-2 MK.1 (N4793C), Anchorage, AK, substantial damage. Probable cause: The commercial pilot’s loss of airplane control while landing in a crosswind, resulting in a nose-over. Contributing to the accident was the check pilot's inadequate supervision of the commercial… 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.