# NTSB CEN09CA228: Remos Remos GX, N446RA, St. Charles, MO, March 22, 2009 - Type: NTSB accident investigation - Classification: Accident · Minor injuries · Data collection · Final report - Date: March 22, 2009, 16:30 local (21:30 UTC) - Place: St. Charles, MO - Coordinates: 38.848609, -90.5 - Nearby events: https://openairdocs.org/map.md?lat=38.8486&lon=-90.5000&mi=10 - Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping) - Defining event: [Approach-VFR pattern final: Aerodynamic stall/spin](https://openairdocs.org/ntsb-events/241) - Highest injury: Minor injuries - Injuries: 2 minor - Status: Completed, report June 22, 2009 - Report: Approved by Office Director - NTSB office: Central Region - Parties: FAA-St Louis FSDO - NTSB case key (mKey): 73541 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN09CA228 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/73541/pdf - Page: https://openairdocs.org/ntsb/CEN09CA228 ## Probable cause The pilot's failure to maintain a proper glide path and airspeed during a simulated emergency approach. Contributing to the accident was the flight instructor's delayed remedial action. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Performance/control parameters: airspeed](https://openairdocs.org/ntsb-findings/01062010): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Remos REMOS GX, 1 case](https://openairdocs.org/ntsb-findings/01062010/cases.md?model=060005Q), [All aircraft, 1,681 cases](https://openairdocs.org/ntsb-findings/01062010/cases.md) - [Performance/control parameters: descent/approach/glide path](https://openairdocs.org/ntsb-findings/01062040): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Remos REMOS GX, 1 case](https://openairdocs.org/ntsb-findings/01062040/cases.md?model=060005Q), [All aircraft, 809 cases](https://openairdocs.org/ntsb-findings/01062040/cases.md) - [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Remos REMOS GX, 2 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=060005Q), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md) - [Action: delayed action](https://openairdocs.org/ntsb-findings/02041025): Personnel issues › Action/decision · Instructor/check pilot (probable cause); cases with it: [Remos REMOS GX, 1 case](https://openairdocs.org/ntsb-findings/02041025/cases.md?model=060005Q), [All aircraft, 894 cases](https://openairdocs.org/ntsb-findings/02041025/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Maneuvering: Simulated/training event](https://openairdocs.org/ntsb-events/600); cases with it: [Remos REMOS GX, 1 case](https://openairdocs.org/ntsb-events/600/sequence.md?model=060005Q), [All aircraft, 173 cases](https://openairdocs.org/ntsb-events/600/sequence.md) - [Approach-VFR pattern final: Aerodynamic stall/spin](https://openairdocs.org/ntsb-events/241) (defining event); cases with it: [Remos REMOS GX, 1 case](https://openairdocs.org/ntsb-events/241/sequence.md?model=060005Q), [All aircraft, 1,529 cases](https://openairdocs.org/ntsb-events/241/sequence.md) - [Approach: Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470); cases with it: [Remos REMOS GX, 3 cases](https://openairdocs.org/ntsb-events/470/sequence.md?model=060005Q), [All aircraft, 10,189 cases](https://openairdocs.org/ntsb-events/470/sequence.md) ## Analysis The purpose of the flight was to administer a flight review for the pilot seated in the left seat of the S-LSA airplane. The flight instructor, who was seated in the right seat, reported that the second landing of the local flight was a simulated engine failure while in the airport traffic pattern. The flight instructor pulled the throttle control to idle when the airplane was approximately abeam the departure end of the takeoff runway to simulate the engine failure. The left-seat pilot turned the airplane toward the approach end of an intersecting runway to set up for the simulated emergency landing. During the approach, the pilot performed a 360-degree turn. When the airplane was about 50 feet above the ground, the flight instructor realized that the airplane was in too steep a bank for the airplane's airspeed and he reached for the throttle control. The left seat pilot had already applied full power to perform a go-around. The flight instructor stated that the power application came too late and that the airplane stalled and subsequently impacted the ground. ## Factual narrative The purpose of the flight was to administer a flight review for the pilot seated in the left seat of the airplane. The flight instructor who was seated in the right seat reported that the second landing of the local flight was a simulated engine failure while in the airport traffic pattern. The flight instructor pulled the throttle control to idle when the airplane was approximately abeam the departure end of the takeoff runway to simulate the engine failure. The left seat pilot turned the airplane toward the approach end of an intersecting runway to set up for the simulated emergency landing. During the approach a 360-degree turn was performed. When the airplane was about 50 feet above the ground, the flight instructor realized that the airplane was in too steep a bank for the airplane's airspeed and he reached for the throttle control. The left seat pilot had already applied full power to perform a go-around. The flight instructor stated that the power application came too late and the airplane stalled and subsequently impacted the ground. ## Aircraft - Registration: [N446RA](https://openairdocs.org/deregistered/N446RA-2013-08-27), registration cancelled 2013-08-27, S/N 255, built 2008 (OpenAirDocs) - Reported make and model: REMOS AIRCRAFT GMBH REMOS GX - Registry model: [Remos REMOS GX](https://openairdocs.org/model/remos-remos-gx) (registry code 060005Q) (OpenAirDocs) - Registry engine: [Rotax 912ULS series](https://openairdocs.org/engine/rotax-912uls-series) (registry code 55572, 4 cycle) (OpenAirDocs) - Category: Airplane - Serial number: 255 - Airframe hours: 140 - Engines: ROTAX 912ULS 100 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Airworthiness certificate: Special, Special light-sport (Special) - Last inspection: Annual, February 25, 2009 - Departed: 3SQ, St. Charles, MO - Destination: 3SQ, St. Charles, MO - Flight plan: Unknown - Airport: 3SQ, St Charles Airport, runway 18, 2,145 × 100 ft, grass/turf ## Flight crew As NTSB recorded them. NTSB leaves out names. - Flight instructor; age 23; injuries: none; commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, without waivers/limitations; last flight review June 20, 2007; seat: right; flight hours: 950 total, 10 in this make and model - Pilot; age 72; injuries: minor; airline transport; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; seat: left ## Weather - Conditions: Visual (VMC), Day ## 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 20090322004509A](https://openairdocs.org/incident/20090322004509A), Mar 22, 2009: Remosa REMOSGX, St Charles, MO, Substantial damage. (-23) During the final pattern of a training flight the second pilot in the right seat (instructor) initiated a simulated engine failure on downwind. During… 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.