# NTSB ANC06LA029: Cooper Harmon Rocket ll, N96CR, McKittrick, CA, March 25, 2006 - Type: NTSB accident investigation - Classification: Accident · Fatal · Limited investigation · Final report - Date: March 25, 2006, 07:15 local (15:15 UTC) - Place: McKittrick, CA - Coordinates: 35.216667, -119.983329 - Nearby events: https://openairdocs.org/map.md?lat=35.2167&lon=-119.9833&mi=10 - Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping) - Highest injury: Fatal - Injuries: 1 fatal - Status: Completed, report March 26, 2007 - Report: Approved by Office Director - NTSB office: Alaska Regional Office - Parties: Fresno - NTSB case key (mKey): 63403 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC06LA029 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/63403/pdf - Page: https://openairdocs.org/ntsb/ANC06LA029 ## Probable cause The pilot's failure to maintain altitude/clearance while performing intentional low altitude aerobatic flight maneuvers. Factors associated with the accident are the low altitude aerobatic flight maneuvers. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - In flight collision with terrain/water, maneuvering - aerobatics - intentional, pilot in command (contributing factor) - low altitude flight/maneuver - performed, pilot in command (contributing factor) - altitude/clearance - not maintained, pilot in command (cause) - terrain condition - ground ## Analysis The private pilot of the amateur built experimental airplane was conducting a solo, local flight under Title 14, CFR Part 91. He departed a private strip on the family's ranch, and proceeded to perform low level aerobatic flight maneuvers within view of his family's homes, and a camping area located on the ranch frequented by family and friends. Numerous family and friends watched as he passed overhead, inverted, and waving. Witnesses said he appeared to be departing the area doing rolls, when the airplane suddenly pitched down and impacted the ground. The airplane was destroyed by impact and postcrash fire. The wreckage was examined onsite by an FAA inspector, who said flight control continuity could not be established due to the extensive damage. The pilot built the airplane, and had an experimental airplane maintenance certificate for the airplane. No maintenance or pilot records were discovered for examination. Ranch personnel buried the airplane wreckage on the property, and the airplane wreckage was not examined by the NTSB. An autopsy of the pilot disclosed that the pilot died of multiple blunt force trauma injuries. The pilot did not have an FAA waiver to perform low altitude aerobatics. ## Factual narrative On March 25, 2006, about 0715 pacific standard time, a Cooper Harmon Rocket II, amateur built experimental airplane, N96CR, was destroyed by impact with terrain and postcrash fire while performing low altitude aerobatic flight maneuvers, about 5 miles east of McKittrick, California. The airplane was being operated by the pilot as a visual flight rules (VFR) personal local flight under Title 14, CFR Part 91, when the accident occurred. The solo private pilot received fatal injuries. Visual meteorological conditions prevailed, and no flight plan was filed. The airplane departed a private airstrip about 5 miles south of McKittrick, about 0700. During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC) on March 27, the FAA aviation safety inspector who visited the accident site said he spoke with several people who witnessed the accident. The inspector said the witnesses reported the area is a common camping area for friends and family of the pilot, located on ranchland owned by the pilot's family. They indicated it was fairly routine for the pilot to perform aerobatic maneuvers in the area on Saturday mornings. They said that on the morning of the accident, the pilot performed several aerobatic maneuvers, and passed overhead inverted, waving at the campers. They said the pilot was exiting the area while performing aileron rolls, when the airplane pitched down and impacted the ground. The inspector said the airplane impacted the terrain in a near vertical, nose-down descent. He said a postcrash fire consumed most of the wreckage, and flight control continuity could not be confirmed. Photographs taken by the FAA inspector were forwarded to the IIC. The pictures showed the terrain was sparsely treed, low rolling hills. The impact footprint was on fairly level ground, and not much larger than the diameter of the wingspan. The engine and propeller were buried out of view in the impact crater. The airframe and associated structures were stacked vertically protruding from the impact crater with the vertical and horizontal stabilizers on the top. The IIC conducted telephone interviews with the witnesses, and all of the witness statement's were consistent with the information provided by the FAA inspector who responded to the accident site. No airplane or pilot logbooks were discovered for examination. According to FAA documents, the airplane was an amateur built experimental airplane, which received FAA certification on August 11, 1998. The airplane, commonly referred to as a Harmon Rocket, was a low-wing, two-place, tandem cockpit, aerobatic airplane equipped with a tailwheel. The airplane was constructed by the pilot, who according to FAA records, received an experimental repair certificate for the airplane on August 24, 2000. According to an application for a third class medical certificate submitted to the FAA, dated August 18, 2005, the pilot had accumulated 4400 hours of flying experience. There is no record of the pilot applying to the FAA for a waiver to perform low altitude aerobatic flight, nor is there an FAA designated special use aerobatic flight area located at the accident site. A postmortem examination of the pilot was performed under the authority of the Kern County Coroner's Office, 1832 Flower Street, Bakersfield, California, 93305-3714, on March 28, 2006. The examination of the pilot revealed the cause of death was multiple blunt force traumatic injuries. Tissue samples were sent to the FAA Bioaeronautical Sciences Research Laboratory, Oklahoma City, Oklahoma, for toxicological examination. Ethanol detected in the brain was attributed to postmortem ethanol production. A review of available FAA medical records, autopsy, and toxicological results, did not disclose any evidence of any preimpact incapacitating medical conditions. The impact site is on ranch property owned by the pilot and his family. Ranch personnel buried the accident airplane wreckage on the property. The airplane was not examined by the NTSB. ## Aircraft - Registration: [N96CR](https://openairdocs.org/deregistered/N96CR-2013-04-24), registration cancelled 2013-04-24, S/N 1999, built 1999 (OpenAirDocs) - Reported make and model: Cooper Harmon Rocket ll - Registry model: [Cooper Norman S COOPER HR II](https://openairdocs.org/model/cooper-norman-s-cooper-hr-ii) (registry code 05606NR) (OpenAirDocs) - Registry engine: [Lycoming IO-540 series](https://openairdocs.org/engine/lycoming-io-540-series) (registry code 41530, reciprocating) (OpenAirDocs) - Category: Airplane, amateur-built - Serial number: 1999 - Engines: Lycoming IO-540 300 horsepower reciprocating - Damage: Destroyed - Fire: On-Ground - Flight: Personal, Part 91 - Registered owner: Norman S. Cooper - Airworthiness certificate: Special, Experimental (Special) - Departed: McKittrick, CA ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 51; injuries: fatal; private; airplane ratings: single-engine land; medical: class 3, with waivers/limitations; seat: front; toxicology performed; flight hours: 4,400 total ## Weather - Conditions: Visual (VMC), Day - Wind: 30° at 8 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 59 °F, dew point 46 °F - Altimeter: 29.96 inHg ## 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 20060325004119A](https://openairdocs.org/incident/20060325004119A), Mar 25, 2006: Amtr HARMONRCKTII, Mckittrick, CA, Destroyed, 1 fatal. (-23) Pilot was performing low altitude acrobatic maneuvers including an inverted low pass over spectators. Airplane impacted the ground at a near 90 degree… 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.