# NTSB DFW05CA094: Grumman G-164A, N8501H, Tuckerman, AR, February 25, 2005 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: February 25, 2005, 16:00 local (22:00 UTC) - Place: Tuckerman, AR - Coordinates: 35.6375, -91.176109 - Nearby events: https://openairdocs.org/map.md?lat=35.6375&lon=-91.1761&mi=10 - Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report June 8, 2005 - Report: Approved by Office Director - Parties: Federal Aviation Administration - NTSB case key (mKey): 61198 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DFW05CA094 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/61198/pdf - Page: https://openairdocs.org/ntsb/DFW05CA094 ## Probable cause The loss of engine power as result of the failure of the number nine cylinder. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of engine power, cruise - engine assembly,cylinder - cracked (cause) - Forced landing, descent - emergency - On ground/water encounter with terrain/water, emergency landing - terrain condition - muddy - terrain condition - none suitable - Nose over, emergency landing ## Analysis The 10,000-hour pilot reported that while maneuvering, the engine suddenly lost power and the pilot initiated a forced landing to a nearby field. During the landing roll, the airplane's main landing gears sunk into the mud, nosed over, and came to rest inverted. Examination of the radial engine revealed that the number nine cylinder head was cracked between both sparkplugs. ## Factual narrative On February 25, 2005, approximately 1600 central standard time, a tailwheel equipped Grumman G-164A single-engine agricultural airplane, N8501H, sustained substantial damage during a forced landing following a loss of engine power while maneuvering near Tuckerman, Arkansas. The commercial pilot, sole occupant of the airplane, was not injured. The airplane was registered to and operated by Tuckerman Flying Service, of Tuckerman, Arkansas. Visual meteorological conditions prevailed and a flight plan was not filed for the 14 Code of Federal Regulations Part 91personal flight. The local flight originated from a private airstrip near Tuckerman, Arkansas, at an unknown time. During a telephone interview with an NTSB representative, the 10,000-hour pilot reported that while maneuvering, the engine suddenly lost power. He initiated a forced landing to a nearby field. During the landing roll, the airplane's main landing gears sunk into the mud, nosed over, and came to rest inverted. Examination of the airplane by the pilot revealed that the horizontal stabilizer and rudder were destroyed. The outboard leading edge of the lower left wing was crushed aft. Both wing struts were broken. Examination of the 600-horsepower Pratt and Whitney R-1340 radial engine by the airplane owner revealed that the number nine cylinder head was cracked between both sparkplugs. ## Aircraft - Registration: [N8501H](https://openairdocs.org/deregistered/N8501H-2018-01-09), registration cancelled 2018-01-09, S/N 1371, built 1974 (OpenAirDocs) - Reported make and model: Grumman G-164A - Registry model: [Grumman Acft ENG Cor-Schweizer G-164A](https://openairdocs.org/model/grumman-acft-eng-cor-schweizer-g-164a) (registry code 3952801) (OpenAirDocs) - Registry engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 1371 - Engines: Pratt & Whitney R-1340 600 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Tuckerman Flying Service - Airworthiness certificate: Special, Restricted (Special) - Departed: Tuckerman, AR ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 44; injuries: none; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--no waivers/lim.; seat: center; flight hours: 10,000 total, 3,500 in this make and model ## Weather - Conditions: Visual (VMC), Day - Wind: 220° at 4 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 52 °F, dew point 32 °F - Altimeter: 30.13 inHg - Observed at: JBR, 30 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 20050225003179A](https://openairdocs.org/incident/20050225003179A), Feb 25, 2005: Scwzer G164A, Tuckerman, AR, Destroyed. (-23) On February 25, 2005, at 1600 CST, a Grumman G-164A agriculture airplane, N8501H, was substantially damaged during a forced landing following a loss of… 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.