# NTSB FTW94FA262: Grumman G-164B, N6804Q, Henderson, LA, August 5, 1994 - Type: NTSB accident investigation - Classification: Accident · Fatal · Field investigation · Final report - Date: August 5, 1994, 15:28 local (20:28 UTC) - Place: Henderson, LA - Coordinates: 30.159448, -92.030265 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=30.1594&lon=-92.0303&mi=10 - Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping) - Highest injury: Fatal - Injuries: 1 fatal - Status: Completed, report March 27, 1995 - Report: Approved by Office Director - NTSB case key (mKey): 18917 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW94FA262 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/18917/pdf - Page: https://openairdocs.org/ntsb/FTW94FA262 ## Probable cause THE PILOT'S FAILURE TO MAINTAIN CLEARANCE FROM A KNOWN OBJECT. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - In flight collision with object, maneuvering - aerial application - object - tower(marked) - object - guy wire - clearance - not maintained, pilot in command (cause) - In flight collision with terrain/water, descent - uncontrolled ## Analysis Throughout the day of aerial application the pilot did not report any airplane discrepancies. The pilot was spraying several 20 acre sugarcane plots to the north and south of a communications tower extending 494 feet above the ground. Witnesses saw the airplane tumble end-over-end as it fell from the sky, hit the ground, and start to burn. Physical evidence of cable damage and yellow paint transfer was found on the tower guide cables. The tower was found on the ground and numerous pieces of the airplane were found near the tower cables and in the sugarcane plot. Damaged cable footage ranged from 101 feet to 131 feet above the ground and stress coiling was evident in all three calbes on the northeast corner outer anchor point. ## Factual narrative HISTORY OF FLIGHT: On August 5, 1994, at 1528 central daylight time, a Grumman G-164B, N6804Q, was destroyed while maneuvering near Henderson, Louisiana. The commercial pilot received fatal injuries. Visual meteorological conditions prevailed for the local aerial application flight. During personal interviews, witnesses reported the pilot had started the work day at 0700. He departed with the first load at 0745 and completed two loads prior to lunch. No discrepancies with the airplane were reported and two additional flights were planned for the afternoon. Witnesses further stated that the pilot was going to spray several 20 acre sugarcane plots located to the north and south of a 480 foot communications tower, with antennas 494 feet above the ground. The airplane hopper was loaded with 300 gallons of chemical and the fuel tanks with 80 gallons of aviation fuel. The airplane departed the private grass airstrip at approximately 1445 for the spray run. Witnesses from vehicles on nearby Interstate Highway 10 (I-10) reported to local authorities that the airplane was tumbling end-over-end as it fell from the sky, hit the ground, and started to burn. The main fuselage came to rest in an inverted position in the center median of I-10. Witnesses assisted in the removal of the pilot, prior to the airplane being engulfed in flames. PERSONNEL INFORMATION: Witnesses reported that 1994 was the pilot's first spraying season with the conversion installation of the turbine engine. AIRCRAFT INFORMATION: Turbines, Inc. of Terre Haute, Indiana, records showed the PT6A-20 engine, S/N PCE21562, was overhauled with a hot section on September 13, 1991, and installed on N6804Q, on September 19, 1991. Complete operator maintenance records were not made available to the Safety Board. WRECKAGE AND IMPACT INFORMATION: Physical evidence of cable damage and yellow paint transfer was found on the tower guide cables. The airplane was painted yellow. Portions of the right wing and tail sections were found near the damaged cables. Numerous parts of the airplane were distributed in the sugarcane field. The fuselage and engine came to rest in an inverted position on a measured magnetic heading of 280 degrees 600 feet from the southeast corner of the tower. See the enclosed wreckage diagram for additional details. A post crash fire destroyed the cockpit and portions of the engine and accessories. The engine gear box was intact and showed lubrication. Compressor blades were seized and showed extensive fire damage. Fuel control lines and connections were intact and fuel was found inside the unit. Flight control continuity was established by the control cables to the cockpit. The rudder cable was separated aft of the cockpit and showed physical evidence of fire distortion. The propeller blades exhibited torsional twisting. Both propeller blades showed leading edge scouring, striations and gouges. MEDICAL AND PATHOLOGICAL INFORMATION: Emil M. Laga, M. D. of New Iberia, Louisiana, performed the autopsy. Toxicology was requested by the NTSB and the FAA; however, Dr. Laga refused to provide toxicological specimens to the FAA Civil Aeromedical Institute of Oklahoma City, Oklahoma. TEST AND RESEARCH: The communications tower operated by Cellular One of Austin, Texas, was inspected on June 3, 1994, with no reported discrepancies. All tower lights were reported operational on August 4, 1994. The tower outage was clocked at 1528:20 on August 5, 1994. Post accident evaluation by the operator (enclosed report) and the FAA was conducted on August 7, 1994. Three guide cables on the northeast corner outer anchor point contained yellow paint and aluminum fragments. Damaged cable footage ranged from 101 feet to 131 feet above the ground. Stress coiling was evident in all three cables. Additional information: The airplane was released to the owner's representative following the investigation. ## Aircraft - Registration: [N6804Q](https://openairdocs.org/deregistered/N6804Q-1995-09-29), registration cancelled 1995-09-29, S/N 313B (OpenAirDocs) - Reported make and model: GRUMMAN G-164B - Registry model: [Grumman Acft ENG Cor-Schweizer G-164B](https://openairdocs.org/model/grumman-acft-eng-cor-schweizer-g-164b) (registry code 3952802) (OpenAirDocs) - Category: Airplane - Serial number: 313B - Engines: P&W PT6A-20 550 horsepower turbo prop - Damage: Destroyed - Fire: On-Ground - Flight: Aerial application, Part 137 - Registered owner: Eddie'S Flying Service, Inc. - Airworthiness certificate: Special, Restricted (Special) - Last inspection: Annual, November 18, 1993 - Destination: LA ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 42; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--no waivers/lim.; seat: center; flight hours: 6,567 total, 885 in this make and model ## Weather - Conditions: Visual (VMC), Day - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 84 °F - Altimeter: 30.00 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 19940805020539A](https://openairdocs.org/incident/19940805020539A), Aug 5, 1994: Scwzer G164B, Henderson, LA, Destroyed, 1 fatal. Struck tower guide cables between two spray area. Crashed and burned. 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.