# NTSB IAD96LA052: Douglas DC-8-62, N803AX, Wilmington, OH, March 20, 1996 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: March 20, 1996, 16:25 local (21:25 UTC) - Place: Wilmington, OH - Coordinates: 39.439197, -83.829681 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=39.4392&lon=-83.8297&mi=10 - Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 3 uninjured - Status: Completed, report February 18, 1997 - Report: Approved by Office Director - NTSB case key (mKey): 28029 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=IAD96LA052 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/28029/pdf - Page: https://openairdocs.org/ntsb/IAD96LA052 ## Probable cause The pilot-in-command's inadequate visual lookout and the company/operator's inadequate crew/group coordination and communication during taxi and snow removal operations. Related factors were the snowy weather conditions affecting visibility and the snowplow on the taxiway. ## 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 - weather condition - snow (contributing factor) - airport snow removal - crew/group coordination - inadequate, company/operator management (cause) - object - vehicle (contributing factor) - visual lookout - inadequate, pilot in command (cause) ## Analysis Company personnel dispatched the aircraft while they simultaneously monitored the company snow removal crews on the taxiways and runways. Two supervisors, in separate vehicles with VHF/FM radios, were overseeing the snow removal operation. The pilot-in-command stated that his attention was on the snowbanks on the right side of the taxiway, when he suddenly noticed the snowplow at the left side of the airplane. The pilot was unable to stop the airplane before it struck the snowplow. The snowplow driver stated that he did not hear nor see the airplane taxiing, and the snow removal supervisors did not alert him to the airplane's movements. He believed that the airplanes were using a different runway, and that he was authorized to conduct snow removal operations on the taxiway. Postaccident examination revealed that the aircraft was on the taxiway centerline, and the snowplow was located on the left side of the taxiway. The visibility at the time of the collision was one mile with light snow and fog. ## Factual narrative On March 20, 1996, at approximately 1625 eastern standard time, a Douglas DC-8-62, N803AX, registered to and operated by Airborne Express, Inc., sustained substantial damage when it collided with a snow removal truck while taxiing for takeoff at Airborne Airpark, in Wilmington, Ohio. There were no injuries reported by the three flightcrew members onboard the airplane, or the driver of the snowplow. Instrument meteorological conditions prevailed and a instrument flight rules (IFR) flight plan was filed. The flight operated under 14 CFR Part 91, and was a positioning flight to Ontario International Airport, in Ontario, California. According to company representatives, Airborne Airpark is a private airport, owned and operated by Airborne Express. The control tower is staffed by Airborne Express employees and the tower operating hours are set to coincide with Airborne Express's peak hours of operation. Normal working hours are from 1900 or 2100 hours until 0700 the next day. The control tower was not functioning at the time of the accident. The airplane was dispatched by Airborne Express's Flight Control Department, which functions as a dispatch department. The Flight Control Department also handles local airport advisory service during the hours that the control tower is closed . According to company policy, once the airplane began to taxi, the pilot in command became responsible for the avoidance of other aircraft, surface vehicles, or other objects. The snowplows also operate through the Flight Control Department. The two drivers and two supervisors were briefed on the active runways and taxiways, and were instructed as to where they were to operate. The two supervisors were in separate vehicles and were present to ensure separation between the snow removal equipment and other vehicles operating on the airport. The two supervisors were equipped with VHF/FM radios to listen to communications of airplanes operating on the airport, and to relay instructions or information to the snowplow drivers as needed. The pilot in command stated that he was taxiing the airplane south on taxiway Alpha toward runway 4R. He stated that he taxied the airplane to the left of the taxiway centerline to avoid a large (approximately 4 feet tall) snow bank near the intersection of taxiway Alpha and taxiway Alpha 3. When the airplane was clear of the snow bank, the pilot returned to the taxiway centerline. The pilots stated that they performed some of the taxi checklist items as they taxied. They indicated that they had just completed the flight control check when they noticed the yellow snowplow located on the left side of the taxiway. The pilot in command stated that it appeared that the snowplow was backing up towards the taxiway at the time of the impact. He stated that he attempted to stop the airplane, but was unable to stop prior to the collision. The pilot in command reported that his attention was somewhat diverted by another snow bank located on the right side of the taxiway. The driver of the snowplow stated that he had just pushed snow into the corner of Bravo ramp and Alpha taxiway. He stated that he was in the process of putting the snowplow into reverse or had just started backwards when he heard and felt something hit the snowplow. The snowplow driver stated that he did not hear nor see the airplane taxiing, and the supervisors did not alert him to the airplane's movements. He stated that he believed that the airplanes were using a different runway, and that he was authorized to conduct snow removal operations on the taxiways. A weather observation taken at 1635 noted the following weather conditions: sky obscured, with an estimated 600 foot ceiling; visibility, one mile with light snow and fog; temperature 31 degrees Fahrenheit (F); dew point, 29 degrees F; and winds out of 330 degrees magnetic at 13 knots. The altimeter setting was 29.42 inches Hg. Postaccident examination revealed that the snowplow was stopped on the taxiway side of the hold lines. A partial airport diagram is appended. Flightcrew, snow removal crew, and witness statements are appended. ## Aircraft - Registration: [N803AX](https://openairdocs.org/deregistered/N803AX-2004-04-07), registration cancelled 2004-04-07, S/N 45917, built 1968 (OpenAirDocs) - Reported make and model: Douglas DC-8-62 - Registry model: [Douglas DC-8-62](https://openairdocs.org/model/douglas-dc-8-62) (registry code 3021970) (OpenAirDocs) - Registry engine: [Pratt & Whitney JT3D series](https://openairdocs.org/engine/pratt-whitney-jt3d-series) (registry code 52035, turbo-fan) (OpenAirDocs) - Category: Airplane - Serial number: 45917 - Airframe hours: 59701 - Engines: P&W JT3D-3B/7 18000 lbs thrust turbo fan - Damage: Substantial damage - Flight: Part 91 - Registered owner: Abx Air Inc - Airworthiness certificate: Standard, Transport - Last inspection: Continuous airworthiness, March 19, 1996, 8 hours before - Destination: ONT, ONTARIO, CA - Flight plan: IFR - Airport: ILN, Airborne Airpark ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 50; airline transport; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; seat: left; flight hours: 15,378 total, 4,875 in this make and model, 9,798 as pilot in command, 170 in the last 90 days, 59 in the last 30 days, 4 in the last 24 hours ## Weather - Conditions: Instrument (IMC), Day - Wind: 330° at 12 knots, gusting 23 - Visibility: 1.5 statute miles - Lowest ceiling: 2,000 ft overcast - Temperature: 30 °F, dew point 28 °F - Altimeter: 29.00 inHg - Observed at: ILN ## 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 19960320040759A](https://openairdocs.org/incident/19960320040759A), Mar 20, 1996: Doug DC862, Wilmington, OH, Substantial damage. Wing struck a snowplow truck during taxi for takeoff. Poor ground crew coordination and company dispatch procedures (-23) a day sort DC-8 taxiing for departure… 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.