# NTSB FTW94LA217: Grumman G-164A, N6568, Marked Tree, AR, July 1, 1994 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: July 1, 1994, 12:00 local (17:00 UTC) - Place: Marked Tree, AR - Coordinates: 35.529766, -90.409721 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=35.5298&lon=-90.4097&mi=10 - Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report January 26, 1995 - Report: Approved by Office Director - NTSB case key (mKey): 19101 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW94LA217 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/19101/pdf - Page: https://openairdocs.org/ntsb/FTW94LA217 ## Probable cause THE POWER LOSS FOR UNDETERMINED REASONS. FACTORS WERE THE PILOT'S INADVERTENT ENTRY INTO A STALL AND THE LACK OF SUITABLE TERRAIN ONTO WHICH TO EXECUTE THE LANDING. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of engine power, maneuvering - aerial application - reason for occurrence undetermined (cause) - Forced landing, descent - emergency - Loss of control - in flight, descent - emergency - terrain condition - none suitable (contributing factor) - stall - inadvertent, pilot in command (contributing factor) - In flight collision with terrain/water, descent - uncontrolled ## Analysis THE PILOT STATED THAT AS HE WAS MAKING HIS TURN AT THE END OF HIS SECOND AERIAL APPLICATION PASS, THE ENGINE LOST POWER WITHOUT WARNING, WHILE THE AIRPLANE WAS AT ABOUT 200 FEET AGL. HE SUBSEQUENTLY ATTEMPTED A FORCED LANDING BETWEEN TWO TREE LINES; HOWEVER, THE AIRPLANE STALLED PRIOR TO TOUCHDOWN AND ONE WING DUG INTO THE GROUND AND THE AIRPLANE CART WHEELED. THE REASON FOR THE POWER LOSS WAS NOT DETERMINED. ## Factual narrative On July 1, 1994, approximately 1200 central daylight time, a Grumman G-164A, N6568, was substantially damaged when it impacted the ground near Marked Tree, Arkansas. The airplane, flown by a commercial pilot, was on an local aerial application flight. There was no flight plan filed and visual meteorological conditions prevailed. The pilot was not injured. According to the pilot, he had departed a private strip about 5 miles from the field he was spraying 10 minutes before the accident. He stated that, as he was making his turn after the second pass at 200 feet AGL, the engine lost power without warning. He was not sure if it was a complete power loss or if the engine was still developing idle power. The pilot subsequently attempted to land between two tree lines; however, he said that the airplane stalled prior to touchdown and one wing dug into the ground and the airplane cart wheeled. The reason for the engine failure was not determined during the field examination and it was not subsequently reported by the operator. ## Aircraft - Registration: [N6568](https://openairdocs.org/deregistered/N6568-1996-03-12), registration cancelled 1996-03-12, S/N 707 (OpenAirDocs) - Reported make and model: GRUMMAN G-164A - Registry model: [Grumman G-164A](https://openairdocs.org/model/grumman-g-164a) (registry code 3952704) (OpenAirDocs) - Category: Airplane - Serial number: 707 - Airframe hours: 5500 - Engines: P&W R-985 450 horsepower reciprocating - Damage: Substantial damage - Flight: Aerial application, Part 137 - Registered owner: Osceola Aerial Service, Inc. - Airworthiness certificate: Special, Restricted (Special) - Last inspection: Annual, November 30, 1993, 100 hours before - Departed: NONE - Destination: NONE ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 22; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--no waivers/lim.; seat: front; flight hours: 600 total, 65 in this make and model, 540 as pilot in command, 100 in the last 90 days, 70 in the last 30 days, 12 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 180° at 4 knots - Visibility: 15 statute miles - Lowest ceiling: none - Temperature: 95 °F ## 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 19940701017189A](https://openairdocs.org/incident/19940701017189A), Jul 1, 1994: Scwzer G164A, Marked Tree, AR, Substantial damage. Lost power procedure turn. Stalled on forced landing. One wing dug into ground. Cartwheeled. Power loss undetermined ## Other investigations on N6568 (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 MKC87LA153](https://openairdocs.org/ntsb/MKC87LA153), Jul 31, 1987: Grumman G-164A (N6568), Widener, AR, 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.