# NTSB CHI96LA265: Grumman G-164A, N4630, Macksville, KS, July 27, 1996 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: July 27, 1996, 14:30 local (19:30 UTC) - Place: Macksville, KS - Coordinates: 37.949432, -98.959678 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=37.9494&lon=-98.9597&mi=10 - Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report December 23, 1996 - Report: Approved by Office Director - NTSB case key (mKey): 10333 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI96LA265 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/10333/pdf - Page: https://openairdocs.org/ntsb/CHI96LA265 ## Probable cause failure of the pilot to allow the airplane to achieve sufficient airspeed for takeoff, and the resultant loss of aircraft control. Factors relating to the accident were: the rough runway, and the mound of dirt at the end of the runway. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of control - on ground/water, takeoff - airport facilities,runway/landing area condition - rough/uneven (contributing factor) - lift-off - premature, pilot in command (cause) - aborted takeoff - initiated, pilot in command - aircraft control - not maintained, pilot in command (cause) - On ground/water encounter with terrain/water, takeoff - aborted - terrain condition - dirt bank/rising embankment (contributing factor) - Nose over, takeoff - aborted ## Analysis The pilot reported that the airport's runway was rough, and during the takeoff roll, the airplane became airborne with insufficient airspeed for flight. The pilot aborted the takeoff. During the aborted takeoff, the airplane went off the runway, hit a dirt mound at the end of the runway, and came to rest inverted. The pilot did not report any airplane or engine malfunction. ## Factual narrative On July 27, 1996, at 1430 central daylight time (cdt), a Grumman G164A, N4630, was substantially damaged during an aborted takeoff at the Smith Airport, Macksville, Kansas. The pilot was attempting to depart from the 2,600 foot runway with 250 gallons of pesticide on board the airplane. The commercial rated pilot was uninjured in the accident. The 14 CFR Part 137 aerial application flight was operating under visual meteorological conditions, and no flight plan had been filed. The pilot reported on NTSB Form 6120.1/2 that the airport's runway was rough, and during the takeoff roll the airplane became airborne with insufficient airspeed for flight. The pilot reported that the takeoff was aborted. The pilot reported that after the aborted takeoff the airplane went off the side of the runway, hit a dirt mound at the end of the runway, and came to rest inverted. The pilot reported that there were no airplane or engine malfunctions. A inspection of the airplane following the accident revealed no abnormalities. The airplane's upper wing center section, vertical fin and rudder sustained crush damage in the accident. The propeller was bent. ## Aircraft - Registration: [N4630](https://openairdocs.org/aircraft/N4630), registered now, S/N 1176, built 1973 (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: 1176 - Airframe hours: 3032 - Engines: P&W R-1340-AN1 600 horsepower reciprocating - Damage: Substantial damage - Flight: Aerial application, Part 137 - Registered owner: Clark Flying Service Inc - Airworthiness certificate: Special, Restricted (Special) - Last inspection: Annual, May 5, 1996, 39 hours before - Departed: 42K - Airport: 42K, Smith, runway 35, 2,600 × 30 ft, gravel ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 39; military, commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: helicopter, airplane; medical: class 2, valid medical--no waivers/lim.; seat: center; flight hours: 5,157 total, 1,300 in this make and model, 4,241 as pilot in command, 191 in the last 90 days, 93 in the last 30 days, 7 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 355° at 3 knots - 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 19960727020239A](https://openairdocs.org/incident/19960727020239A), Jul 27, 1996: Scwzer G164A, Macksville, KS, Substantial damage. Failed accelerate on rough runway on takeoff. Aborted. Exited runway impacted dirt mound. Flipped inverted. 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.