# NTSB CHI94FA282: Champion 7KCAB, N7565F, Humphrey, NE, August 13, 1994 - Type: NTSB accident investigation - Classification: Accident · Fatal · Field investigation · Final report - Date: August 13, 1994, 17:30 local (22:30 UTC) - Place: Humphrey, NE - Coordinates: 41.679489, -97.480094 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=41.6795&lon=-97.4801&mi=10 - Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping) - Highest injury: Fatal - Injuries: 2 fatal - Status: Completed, report February 24, 1995 - Report: Approved by Office Director - NTSB case key (mKey): 9388 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI94FA282 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/9388/pdf - Page: https://openairdocs.org/ntsb/CHI94FA282 ## Probable cause the pilot's failure to maintain control of the airplane. A factor associated with the accident is the pilot's buzzing of the passenger's brother-in-law's house. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of control - in flight, maneuvering - buzzing - performed, pilot in command (contributing factor) - aircraft control - not maintained, pilot in command (cause) - In flight collision with terrain/water, descent - uncontrolled - terrain condition - crop ## Analysis THE PRIVATE PILOT AND PASSENGER WERE ON A LOCAL PLEASURE FLIGHT. THE AIRPLANE WAS HEARD FLYING LOW OVER THE PASSENGER'S BROTHER- IN-LAW'S HOUSE AND FARM. THE BROTHER-IN-LAW STATED THAT HE HEARD THE ENGINE NOISE VERY CLEARLY WHILE HE WAS WALKING THROUGH HIS HOUSE. HE SAID THE ENGINE WAS LOUD AND THE AIRPLANE MUST HAVE BEEN CLOSE TO THE HOUSE. HE HEARD THE ENGINE MAKING A DIFFERENT SOUND, AND THEN LOOKED OUT THE KITCHEN WINDOW AND SAW THE AIRPLANE DESCEND NOSE FIRST INTO THE SOYBEAN FIELD BEHIND HIS HOG YARD. THE AIRPLANE CAUGHT FIRE IMMEDIATELY AFTER IMPACT. THE BROTHER-IN-LAW SAID THAT AT THE TIME OF THE ACCIDENT, HE WAS UNAWARE THAT THE PASSENGER IN THE AIRPLANE WAS HIS RELATIVE. POSTCRASH INSPECTION OF THE ENGINE AND AIRFRAME DISCOVERED NO EVIDENCE OF PREIMPACT MECHANICAL ANOMALIES. AN AUTOPSY AND TOXICOLOGICAL EXAMINATION OF THE PILOT DISCLOSED NO EVIDENCE OF TOXICOLOGICAL OR PHYSICAL IMPAIRMENT. ## Factual narrative HISTORY OF FLIGHT On August 13, 1994, about 1730 central daylight time, a Champion (Citabria) 7KCAB airplane, N7565F, was destroyed by impact forces and postcrash fire when it collided with terrain approximately 2 and 1/2 miles southwest of Humphrey, Nebraska. The private pilot and sole passenger aboard were fatally injured. The local pleasure flight operated in visual meteorological conditions without flight plan. The flight departed Norfolk, Nebraska, about 1645. The crash site was located in a soybean field to the rear (south) of a farm house owned by a relative of the passenger in the airplane. The relative reported he heard the airplane pass low over his house and heard a distinct change in the engine sound. He characterized the engine sound as "different and louder than an automobile V-8 or V-6 engine." He said that 2 or 3 seconds after he heard the sound he was looking out the kitchen window and saw the airplane just before it struck the ground in a nose down, vertical attitude. He saw no sign of fire until a few seconds after impact. The relative ran out of the house towards the wreckage and was looking for possible survivors outside the airplane. He was unable to reach the wreckage due to the intensity of the fire. At the time of the accident, the relative said that he was unaware that his brother-in-law was a passenger in the airplane. Another witness, the owner of a neighboring farm located approximately 1/2 mile south of the accident site also heard the airplane engine "cut out" once, resume power, then cut out again, closely followed by the sound of the impact. This witness said he did not see the airplane anytime before or after it crashed. WRECKAGE AND IMPACT INFORMATION The on-site investigation began at 1415 on August 14. The airplane was found lying in a level soybean field approximately 181 feet south of a hog yard located to the rear (south) of the Wessel Residence. The terrain surrounding the accident site is principally comprised of soybean and corn fields. All major airframe components and the engine were in the immediate vicinity of the accident site. The airplane's propeller had separated from the engine and was found partially buried in soft soil about 18 feet from the center section of the wreckage. The magnetic direction from the propeller to the wreckage was 305 degrees. The propeller's attachment bolts to the engine flange were found in the propeller's mounting holes. The bolts were stretched and were smaller in diameter at the point where they normally would mate with the engine flange. The propeller's face exhibited some chordwise scratching. Adjacent to, and expanding symmetrically from where the propeller was found, was an area of denuded soybean crop and disturbed earth. The area of disturbance was similar in shape and dimension to the airplane's lengthwise wing span. The lateral axis of the outline was oriented approximately east-west. The airplane structure was extensively fire damaged. The external fabric covering was completely burned away. The center section of the fuselage was mostly consumed by fire. No evidence of a preimpact fire was discovered. Flight control continuity for the ailerons, rudder and elevator was established from the individual flight control to the applicable cockpit control. The engine was mostly separated from the airframe. The engine was examined and field stripped at the site. No preimpact mechanical anomalies were discovered. The magnetos were not functionally tested due to fire and impact damage. MEDICAL AND PATHOLOGICAL INFORMATION On August 15, an autopsy was performed on the pilot by Dr. Matthias I. Okoye, of Pathology Medical Services, Lincoln, Nebraska. The cause of death was listed as massive blunt trauma. No evidence of a preexisting disease was discovered. A toxicological report issued by the FAA was positive for ethanol and acetaldehyde in the blood. No ethanol was found in the urine sample provided. Conversation with the manager of the FAA's toxicology lab revealed that the amount of ethanol detected was very low, and most likely attributable to postmortem production. FIRE There was a localized, postcrash fire. Fire damage was limited to the airplane and the soybean crop in the immediate area of the crash. ADDITIONAL INFORMATION The wreckage was released to the operator, Mid Plains Aviation, on August 14. ## Aircraft - Registration: [N7565F](https://openairdocs.org/deregistered/N7565F-1997-03-13), registration cancelled 1997-03-13, S/N 22970 (OpenAirDocs) - Reported make and model: CHAMPION 7KCAB - Registry model: [Champion 7KCAB](https://openairdocs.org/model/champion-7kcab) (registry code 21101P3) (OpenAirDocs) - Category: Airplane - Serial number: 229-70 - Airframe hours: 1260 - Engines: LYCOMING IO-320-E2A 150 horsepower reciprocating - Damage: Destroyed - Fire: On-Ground - Flight: Personal, Part 91 - Operator: Mid-Plains Aviation - Registered owner: Scott D. Freese - Airworthiness certificate: Standard, Normal; Standard, Aerobatic - Last inspection: Annual, July 22, 1994, 14 hours before - Departed: OFK, NORFOLK, NE ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 19; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: front; toxicology performed; flight hours: 223 total, 20 in this make and model, 193 as pilot in command, 77 in the last 90 days, 39 in the last 30 days, 3 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 360° at 9 knots - Visibility: 15 statute miles - Lowest ceiling: 10,000 ft broken - Temperature: 84 °F, dew point 70 °F - Altimeter: 30.00 inHg - Observed at: OFK, 23 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 19940813021429A](https://openairdocs.org/incident/19940813021429A), Aug 13, 1994: Bbavia 7KCAB, Humphery, NE, Destroyed, 2 fatal. Buzzed farm house. Wreckage indicates a stall and vertical impact. ## Other investigations on N7565F (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 DEN71DQA52](https://openairdocs.org/ntsb/DEN71DQA52), May 1, 1971: Champion 7KCAB (N7565F), Albuquerque, NM, 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.