# NTSB MIA99LA163: Cessna 152, N68762, Chapel Hill, NC, June 5, 1999 - Type: NTSB accident investigation - Classification: Accident · Serious injuries · Limited investigation · Final report - Date: June 5, 1999, 12:48 local (16:48 UTC) - Place: Chapel Hill, NC - Coordinates: 35.919673, -79.040069 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=35.9197&lon=-79.0401&mi=10 - Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping) - Highest injury: Serious injuries - Injuries: 1 serious - Status: Completed, report June 22, 2000 - Report: Approved by Office Director - NTSB case key (mKey): 46484 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA99LA163 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/46484/pdf - Page: https://openairdocs.org/ntsb/MIA99LA163 ## Probable cause The failure of the pilot to maintain airspeed resulting in the airplane stalling and entering a spin. Contributing to the accident was the pilot's impairment by marijuana. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of control - in flight, go-around (vfr) - airspeed(vs) - not maintained, pilot in command (cause) - impairment(drugs), pilot in command (contributing factor) - stall/spin - inadvertent, pilot in command (cause) - In flight collision with object, descent - uncontrolled - object - tree(s) ## Analysis The pilot stated to an FAA inspector after the accident that he did not remember anything about the accident. A flight instructor in another airplane saw the accident airplane approach the runway at a high altitude. The next time he saw it, it was over trees at the departure end of the runway, in a nose high attitude, moving very slowly, on the edge of a stall. The accident airplane then yawed sharply to the left, and entered a nose down, near vertical descent, disappearing into the trees. Postcrash toxicology tests were positive for .247 ug/ml marijuana in urine and .027 ug/ml marijuana in serum. Postcrash examination of the airplane's structure, flight controls, and engine by an FAA inspector showed no evidence of precrash failure or malfunction. ## Factual narrative On June 5, 1999, about 1248 eastern daylight time, a Cessna 152, N68762, registered to Chapel Hill Flying Club, crashed during a go-around at Horace Williams Airport, Chapel Hill, North Carolina, while on a Title 14 CFR Part 91 instructional flight. Visual meteorological conditions prevailed at the time and no flight plan was filed. The aircraft was destroyed and the student pilot received serious injuries. The flight originated from Chapel Hill, the same day, about 1100. The pilot stated to an FAA inspector after the accident that he did not remember anything about the accident. A flight instructor in another aircraft stated that as he and his student entered right downwind for runway 27 at Horace Williams Airport, they observed N68762 turn from base leg to final approach, while still at about traffic pattern altitude. He diverted his attention and when he looked back, he saw N68762 about half way down the runway , still at a high altitude. A few moments later he observed N68762 over the trees at the end of the runway, in a nose-high attitude and moving very slowly, on the edge of a stall. The aircraft then yawed sharply left and disappeared into the trees in a steep nose down , near vertical attitude. Postcrash examination of the aircraft was performed by an FAA inspector. All components of the aircraft necessary for flight were on or around the main wreckage. Continuity of the flight control systems was established. The engine rotated and produced normal compression in each cylinder. Continuity of the crankshaft, camshaft, valve train and all accessory drives was established. Each magneto produced spark when rotated by hand. The carburetor was loose at the attach point to the engine and the case halve screws were loose. There was no indication of failure or malfunction of the carburetor. Postcrash toxicology testing performed on specimens obtained from the pilot during hospital admission shortly after the accident was performed by McLendon Clinical Laboratories, University of North Carolina Hospitals, Chapel Hill, North Carolina and Federal Aviation Admonistartion, Toxicology and Accident Research Laboratory, Oklahoma City, Oklahoma. The McLendon Clinical Laboratories tests were positive for Cannabinoid, Amphetamine, Opiate, and Salicylate in urine. Quantities were not established. The Federal Aviation Administration tests were positive for .019 ug/ml Tetrahydrocannabinol and .027 ug/ml Tetrahydrocannabinol Carboxylic Acid in serum. The FAA tests were also positive for .247 ug/ml Tetrahydrocannabinol Carboxylic Acid and 112.2 ug/ml Salicylate in urine. Tetrahydrocannabinol (THC) is the active substance in marijuana and tetrahydrocannabinol carboxylic acid is the inactive metabolite of THC. ## Aircraft - Registration: [N68762](https://openairdocs.org/deregistered/N68762-2015-05-15), registration cancelled 2015-05-15, S/N 15282362, built 1978 (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: 15282362 - Airframe hours: 7004 - Engines: Lycoming O-235-L2C 110 horsepower reciprocating - Damage: Destroyed - Flight: Instructional, Part 91 - Registered owner: Chapel Hill Flying Club - Airworthiness certificate: Standard, Normal; Standard, Utility - Last inspection: Annual, February 18, 1999, 185 hours before - Departed: IGX - Airport: IGX, Horace Williams, runway 27, 4,005 × 75 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 52; student; medical: class 3, valid medical--w/ waivers/lim; seat: left; toxicology performed; flight hours: 78 total, 78 in this make and model, 8 as pilot in command, 60 in the last 90 days, 19 in the last 30 days, 2 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: variable at 4 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 81 °F, dew point 54 °F - Altimeter: 30.00 inHg - Observed at: RDU, 15 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 19990605006499A](https://openairdocs.org/incident/19990605006499A), Jun 5, 1999: Cessna 152, Chapel Hill, NC, Destroyed. Student pilot was on go around when the acft stalled and crashed into trees, other circumstances are unknown. (From .19) on June 5, 1999, about 1300 eastern… 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.