# NTSB MIA96FA130: Helio H-295, N700HC, Gaffney, SC, April 26, 1996 - Type: NTSB accident investigation - Classification: Accident · Fatal · Field investigation · Final report - Date: April 26, 1996, 08:15 local (12:15 UTC) - Place: Gaffney, SC - Coordinates: 35.069728, -81.649246 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=35.0697&lon=-81.6492&mi=10 - Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping) - Highest injury: Fatal - Injuries: 1 fatal - Status: Completed, report December 10, 1996 - Report: Approved by Office Director - NTSB case key (mKey): 37905 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA96FA130 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/37905/pdf - Page: https://openairdocs.org/ntsb/MIA96FA130 ## Probable cause failure of the pilot to remove the control lock during the preflight, and his failure to check the flight controls before taking off. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Airframe/component/system failure/malfunction, takeoff - roll/run - removal of control/gust lock(s) - not performed, pilot in command (cause) - flight control system - locked - aircraft preflight - inadequate, pilot in command (cause) - Loss of control - on ground/water, takeoff - roll/run - On ground/water encounter with terrain/water, takeoff - roll/run - terrain condition - berm - terrain condition - ditch - On ground/water collision with object, takeoff - roll/run - object - tree(s) ## Analysis During takeoff, the aircraft veered to the right and went off of the airstrip about 300 feet from the departure end, then it continued on a course parallel to the airstrip. The aircraft was reported to be in a tail-high, nose-low attitude, and the propeller was striking the ground. The aircraft was estimated to be traveling at about 89 knots at that time. Subsequently, the aircraft collided with a berm and became airborne, then it collided with trees and crashed into a ditch at the end of the airstrip. A postcrash fire erupted and further damaged the aircraft. Postcrash examination of the aircraft structure and engine did not show evidence of a precrash failure or malfunction; except during a check of the flight controls, the remains of a drywall screw were found in the control lock hole on the control column. This screw was locking the controls in an aircraft nose-down attitude. Members of the pilot's family and the mechanic, who maintained the aircraft, identified the drywall screw as the device used by the pilot to lock the controls on the ground. ## Factual narrative HISTORY OF FLIGHT On April 26, 1996, about 0815 eastern daylight time, a Helio H-295, N700HC, registered to an individual, collided with trees and a ditch during takeoff from a private strip near Gaffney, South Carolina, while on a Title 14 CFR Part 91 personal flight to Cheraw, South Carolina. Visual meteorological conditions prevailed at the time and no flight plan was filed. The aircraft was destroyed and the commercial-rated pilot was fatally injured. The flight was originating at the time of the accident. There were no eyewitnesses to the accident. Witnesses heard the aircraft taking off and then heard the sound of the crash. They then called the sheriff's department. PERSONNEL INFORMATION Information on the pilot is contained in First Pilot Information, on page 3 of this report. AIRCRAFT INFORMATION Information on the aircraft is contained in Aircraft Information, on page 2 of this report.. METEORLOGICAL INFORMATION Visual meteorological conditions prevailed at the time of the accident. Information on the meteorological conditions is contained in Weather Information, on page 4 of this report. WRECKAGE AND IMPACT INFORMATION The aircraft crashed on the departure end of the pilot's private strip, while taking off in a southerly direction. The strip is located behind the pilot's house at 202 Littlejohn Road, Gaffney, South Carolina. Examination of the crash site showed that about 300 feet from the end of the strip the aircraft veered to the right off of the strip. The aircraft maintained a parallel course with the strip, in the tall grass adjacent to the strip. About 22 cut marks, 14 inches apart, from the aircraft's propeller, were found in the grass. As the aircraft approached the end of the strip it collided with a berm and became airborne. The aircraft's right wing struck trees and the aircraft rotated to the right. The left wing and nose dropped and the aircraft rotated around the left wing. The aircraft came to rest in a ditch, inverted, with the nose of the aircraft pointing back toward the strip on a northerly heading. Several tree branches with diameters up to 3 inches, had been severed by the propeller. A postcrash fire erupted and consumed the aircraft. All components of the aircraft necessary for flight were found on or around the main wreckage of the aircraft. Continuity of all flight control cables was established. A drywall screw was found installed in the control lock hole on the pilot's control column. This screw was locking the controls in an aircraft nose down attitude. Members of the pilot's family and the mechanic who maintained the aircraft identified this as the device used by the pilot to lock the controls on the ground. Examination of the engine showed that it rotated normally and that continuity of the crankshaft, camshaft, valve train, and accessory drives was established. All cylinders except for No. 3 produced normal compression. The No. 3 cylinder exhaust valve was found to be stuck open and the valve springs were found to be shorter than the springs on other cylinders. The engine fuel and ignition systems were destroyed by the postcrash fire. The spark plugs had deposits consistent with normal engine operation. The turbo charger was free to rotate, all wheels and blades were in place, the waste gate was full open, and the linkage between the waste gate and controller was in place. The engine tachometer was found reading 1900 rpm. The propeller spinner had rotational damage consistent with the propeller turning under power at the time of the accident. Each propeller blade had rotational damage and fire damage. The propeller was found in the low pitch position after the accident. Tear down examination showed no evidence of precrash failure or malfunction. The propeller governor rotated normally and pumped oil when turned by hand. MEDICAL AND PATHOLOGICAL INFORMATION Postmortem examination of the pilot was performed by Dr. Joel S. Sexton, Newberry County Memorial Hospital, Newberry, South Carolina. The cause of death was thermal burns and smoke inhalation. No findings which could be considered causal to the accident were reported. Postmortem toxicology studies on specimens obtained from the pilot were performed by the South Carolina Law Enforcement Laboratory, Columbia, South Carolina and the Federal Aviation Administration Laboratory, Oklahoma City, Oklahoma. The studies were negative for ethanol alcohol, basic, acidic, and neutral drugs, carbon monoxide, and cyanide. For additional medical and pathological information see Supplement K and toxicology reports. TESTS AND RESEARCH Propeller cut marks which were found in the grass adjacent to the strip were 14 inches apart. Based on this and a normal engine and propeller takeoff rpm of 2575, the aircraft was traveling about 89 knots at the time it made these marks. Examination of the No. 1 and No. 3 valve springs was conducted at Lycoming Engines, Williamsport, Pennsylvania, under FAA supervision. The springs for the No. 3 cylinder were shorter than the normal springs. Both sets of springs were found to have been subjected to high temperature and were sooted from the postcrash fire. The No. 3 springs were shorther do to changes in microstructure as a result of postcrash fire damage. See the Lycoming Engines Report. Metallurgical examination of the right wing upper attach bolt and one propeller blade pitch change knob was performed by the NTSB Materials Laboratory, Washington, D.C. The wing bolt had failed do to overstress separation. The pitch change knob was smeared and had failed do to overstress separation. See the Metallurgist's Factual Report. ADDITIONAL INFORMATION The aircraft wreckage was released to Byron Hames on April 27, 1996. Components retained by NTSB for examination were returned to Byron Hames on July 22, 1996. ## Aircraft - Registration: [N700HC](https://openairdocs.org/deregistered/N700HC-2000-04-11), registration cancelled 2000-04-11, S/N 1474 (OpenAirDocs) - Reported make and model: Helio H-295 - Registry model: [Helio H-295](https://openairdocs.org/model/helio-h-295) (registry code 4300802) (OpenAirDocs) - Category: Airplane - Serial number: 1474 - Airframe hours: 2421 - Engines: Lycoming TIO-540-J2B 350 horsepower reciprocating - Damage: Destroyed - Fire: On-Ground - Flight: Personal, Part 91 - Registered owner: Randall K. Hames - Airworthiness certificate: Special, Experimental (Special) - Last inspection: Annual, January 22, 1996, 10 hours before - Destination: 47J, CHERAW, SC - Airport: Hames Strip, runway 19, 1,500 × 50 ft, grass/turf ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 39; flight instructor, commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: left; toxicology performed; flight hours: 3,454 total, 37 in this make and model, 3,200 as pilot in command, 46 in the last 90 days, 16 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: 220° at 13 knots - Visibility: 10 statute miles - Lowest ceiling: 2,300 ft broken - Temperature: 64 °F, dew point 57 °F - Altimeter: 29.00 inHg - Observed at: GSP, 30 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 19960426008659A](https://openairdocs.org/incident/19960426008659A), Apr 26, 1996: Helio H295, Gaffney, SC, Destroyed, 1 fatal. Veered off runway near end strip continued in tall grass. Hit berm. Became airborne. Hit trees. Nosed over in ditch ## Other investigations on N700HC (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 DEN85LA011](https://openairdocs.org/ntsb/DEN85LA011), Oct 18, 1984: Helio Courier (N700HC), Livingston, MT, substantial damage 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.