# NTSB CHI99LA247: Ryan Navion A, N4902K, Keokuk, IA, July 22, 1999 - Type: NTSB accident investigation - Classification: Accident · Minor injuries · Limited investigation · Final report - Date: July 22, 1999, 14:15 local (19:15 UTC) - Place: Keokuk, IA - Coordinates: 40.40023, -91.399955 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=40.4002&lon=-91.4000&mi=10 - Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping) - Highest injury: Minor injuries - Injuries: 2 minor - Status: Completed, report June 22, 2000 - Report: Approved by Office Director - NTSB case key (mKey): 46891 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI99LA247 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/46891/pdf - Page: https://openairdocs.org/ntsb/CHI99LA247 ## Probable cause Loss of engine power for undetermined reasons. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of engine power, approach - vfr pattern - downwind - reason for occurrence undetermined (cause) - Forced landing, emergency descent/landing - On ground/water encounter with terrain/water, emergency landing - terrain condition - crop (contributing factor) ## Analysis The pilot stated he had topped off the accident airplane's fuel before departure. He said that during the landing approach, he reduced engine power, lowered the landing gear, and extended 1/2 flaps. Subsequently, he applied power and the engine did not respond. A soybean field was selected and a forced landing executed in the field resulting in substantial damage. The investigation revealed engine continuity and no pre-existing engine anomalies were found. Fuel was recovered from the airplane. Fuel was also present on the ground at the scene and the glass gascolator bowl was found broken. The fuel selector was found on the main tank position and was selected to the off position by the first person to arrive at the accident site. ## Factual narrative On July 22, 1999, at 1415 central daylight time, a Ryan Navion A, N4902K, piloted by a private pilot, sustained substantial damage during a forced landing near Keokuk Municipal Airport, Keokuk, Iowa. The 14 CFR Part 91 flight was not on a flight plan. The pilot and passenger received minor injuries. Visual meteorological conditions prevailed at the time of the accident. The flight originated from West Kentucky Airpark Airport, Paducah, Kentucky at 1200. In a written statement, the pilot stated that he had topped off the accident airplane's fuel before departing West Kentucky Airpark Airport. He said that during the downwind segment of the approach to runway 26 at Keokuk Municipal Airport, he reduced engine power, he lowered the gear, and lowered 1/2 flaps. He said that he applied power to stabilize the decent and found that the engine did not respond to the throttle. He stated that he had chosen a soybean field and made a forced landed in that field. The pilot reported that both main landing gears were sheared off, damage occurred to both wings, and that the engine compartment was torn loose from the fuselage during the forced landing. A FAA inspection, conducted on July 27, 1999, revealed engine continuity. No pre-existing engine anomalies were found. Three and three quarter gallons of fuel were recovered from the airplane. An area soaked with fuel was present on the ground under the firewall area and the glass gascolator bowl was found broken. The fuel selector was found selecting the main tank and was selected to the off position by the first person to arrive. ## Aircraft - Registration: [N4902K](https://openairdocs.org/deregistered/N4902K-2017-06-30), registration cancelled 2017-06-30, S/N NAV-4-1902, built 1949 (OpenAirDocs) - Reported make and model: Ryan NAVION A - Registry model: [Ryan NAVION A](https://openairdocs.org/model/ryan-navion-a) (registry code 6150162) (OpenAirDocs) - Registry engine: [Continental E185 series](https://openairdocs.org/engine/continental-e185-series) (registry code 17014, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: NAV-4-1902 - Airframe hours: 1409 - Engines: Continental E185 185 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: L Birds Incorporated - Airworthiness certificate: Standard, Normal - Last inspection: Annual, July 16, 1999, 51 hours before - Departed: FIO, PADUCAH, KY - Destination: EOK, IA - Airport: EOK, Keokuk Municipal Airport, runway 26, 5,500 × 100 ft, concrete ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 55; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 1,100 total, 100 in this make and model, 1,000 as pilot in command, 20 in the last 90 days, 8 in the last 30 days, 5 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 240° at 10 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 99 °F, dew point 68 °F - Altimeter: 30.00 inHg - Observed at: EOK ## 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 19990722009829A](https://openairdocs.org/incident/19990722009829A), Jul 22, 1999: Tmpson NAVIONA, Keokuk, IA, Substantial damage. Aircraft landed in field 1/2 sm se runway 26 at Keokuk, Iowa. (-23) Mr. John evans landed the navion N4902K short of the runway at Keokuk, iowas, due to engine… 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.