# NTSB CHI95LA336: Cessna T210M, N7660E, Dodge City, KS, September 28, 1995 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: September 27, 1995, 20:34 local (Sep 28, 1995, 01:34 UTC) - Place: Dodge City, KS - Coordinates: 37.750034, -100.010284 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=37.7500&lon=-100.0103&mi=10 - Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report May 30, 1996 - Report: Approved by Office Director - NTSB case key (mKey): 10044 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI95LA336 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/10044/pdf - Page: https://openairdocs.org/ntsb/CHI95LA336 ## Probable cause the pilot's improper use of the auxiliary fuel boost pump during descent which led to fuel flooding and loss of combustion. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of engine power(partial) - nonmechanical, approach - iaf to faf/outer marker (ifr) - powerplant controls - improper use of, pilot in command (cause) - fuel boost pump selector position - improper use of, pilot in command (cause) - Forced landing, emergency landing - In flight collision with terrain/water, emergency landing ## Analysis The pilot reported that after descending on the initial approach segment of the ILS approach, he pushed the throttle forward to add power and level off upon reaching the assigned altitude. The pilot stated that he did not receive an increase in engine power. He then turned the fuel boost pump ON, but no additional power was obtained. Losing altitude and airspeed, the pilot realized that the airplane was not going to be able to make it the airport, and a forced landing was made on a field. Postaccident examination revealed no mechanical abnormalities. The engine was successfully started and it ran to 1500 RPM. The pilot stated that he always turns the auxiliary fuel pump ON during all approaches. Normal Operating Procedures in the Pilot Operating Handbook recommends that the auxiliary fuel boost pump be in the OFF position during descent. ## Factual narrative On September 27, 1995, at 2034 central daylight time (cdt), a Cessna T210M, N7660E, was substantially damaged following a partial loss of engine power and subsequent forced landing on a field in Dodge City, Kansas. The airplane was on the ILS Runway 14 Approach to Dodge City Regional Airport when the partial loss of engine power occurred. The pilot reported no injuries. The 14 CFR Part 91 flight had departed Springfield, Missouri, at 1817 cdt. Instrument meteorological conditions prevailed at the time of the accident and an IFR flight plan was on file. In a written statement, the pilot reported that as the airplane was descending on the initial approach segment of the ILS approach, he continued to increase the mixture to full rich. The pilot stated that once the airplane reached the assigned altitude of 4,200 feet MSL, he pushed the throttle forward to add power and level off. "I did not hear or feel any power come on," the pilot stated. The pilot stated he then turned the fuel boost pump ON with the throttle one-half open, but was not able to obtain additional engine power. The pilot stated that the airplane was loosing altitude and airspeed and he realized that it was not going to make it to the airport. The pilot stated that at this time, he focused on making an emergency landing. The airplane landed on a field and sustained substantial damage. Postaccident examination revealed no mechanical abnormalities but the spark plugs were found sooty. The engine was successfully started and it ran up to 1500 RPM. An operational test was performed on the auxiliary fuel pump. During engine operation, the auxiliary fuel pump was switched to the ON position. This resulted in a metered fuel pressure increase, a reduction in engine RPM, and the engine began running rough. Advancing the throttle with the pump ON resulted in a loss of combustion due to fuel flooding. The fuel pump was then turned to the OFF position. The engine RPM decreased and the engine re-ignited. See attached copy of report. The Normal Procedures Section of the Pilot's Operating Handbook for the Cessna 210 recommends the following procedure for a descent: "power as desired, auxiliary fuel pump OFF, mixture adjust for smooth operation, and cowl flaps closed." The pilot stated to the FAA and to a representative of the airplane manufacturer that he always turns the auxiliary fuel pump ON during all approaches. ## Aircraft - Registration: [N7660E](https://openairdocs.org/deregistered/N7660E-2015-05-07), registration cancelled 2015-05-07, S/N 210-62692, built 1978 (OpenAirDocs) - Reported make and model: Cessna T210M - Registry model: [Cessna 210M](https://openairdocs.org/model/cessna-210m) (registry code 2073450) (OpenAirDocs) - Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 21062692 - Airframe hours: 4294 - Engines: Continental IO-520-L 285 horsepower reciprocating - Damage: Substantial damage - Flight: Business, Part 91 - Registered owner: General Air Ambulance Inc - Airworthiness certificate: Standard, Normal - Last inspection: Annual, July 12, 1995 - Departed: SGF, SPRINGFIELD, MO - Destination: DDC, KS - Flight plan: IFR ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 43; private; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 1,393 total, 650 in this make and model, 1,100 as pilot in command, 125 in the last 90 days, 36 in the last 30 days ## Weather - Conditions: Instrument (IMC), Night/dark - Wind: 160° at 13 knots - Visibility: 5 statute miles - Lowest ceiling: 700 ft overcast - Temperature: 63 °F, dew point 61 °F - Altimeter: 29.00 inHg - Observed at: DDC, 15 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 19950927030429A](https://openairdocs.org/incident/19950927030429A), Sep 27, 1995: Cessna T210M, Dodge City, KS, Substantial damage. Lost power on ILS approach. Crash landed off airport. Had flooded engine by turning on aux pump. ## Other investigations on N7660E (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 IAD03LA021](https://openairdocs.org/ntsb/IAD03LA021), Dec 4, 2002: Cessna 210M (N7660E), Cincinnati, OH, substantial damage. Probable cause: Rupture of the left side, landing gear down hydraulic line due to repeated contact with the aileron cable, which resulted in a loss of hydraulic pressure, a partial extension of the main landing… 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.