# NTSB CEN12CA041: Diamond Aircraft Ind DA 20-C1, N942DA, Pueblo, CO, October 24, 2011 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: October 24, 2011, 15:45 local (21:45 UTC) - Place: Pueblo, CO - Coordinates: 38.288887, -104.496391 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=38.2889&lon=-104.4964&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing-flare/touchdown: Loss of control in flight](https://openairdocs.org/ntsb-events/240) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report February 6, 2012 - Report: Approved by Office Director - NTSB office: Central Region - Parties: FAA Flight Standards District Office - NTSB case key (mKey): 82166 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN12CA041 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/82166/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=82166 - Page: https://openairdocs.org/ntsb/CEN12CA041 ## Probable cause The certified flight instructor’s delayed remedial action. Contributing to the accident was the student pilot's failure to maintain control prior to the landing. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Action: delayed action](https://openairdocs.org/ntsb-findings/02041025): Personnel issues › Action/decision · Instructor/check pilot (probable cause); cases with it: [Diamond Aircraft Ind DA20-C1, 6 cases](https://openairdocs.org/ntsb-findings/02041025/cases.md?model=2990001), [All aircraft, 894 cases](https://openairdocs.org/ntsb-findings/02041025/cases.md) - [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Student/instructed pilot (probable cause); cases with it: [Diamond Aircraft Ind DA20-C1, 37 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=2990001), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Landing-flare/touchdown: Loss of control in flight](https://openairdocs.org/ntsb-events/240) (defining event); cases with it: [Diamond Aircraft Ind DA20-C1, 16 cases](https://openairdocs.org/ntsb-events/240/sequence.md?model=2990001), [All aircraft, 5,002 cases](https://openairdocs.org/ntsb-events/240/sequence.md) ## Analysis The student pilot and certified flight instructor (CFI) were practicing touch-and-go takeoffs and landings. While on the downwind leg in the traffic pattern, the CFI retarded the throttle to simulate an emergency. The student pilot continued the approach and initiated a forward slip to correct for an altitude deviation. He continued the slip until 25 feet above ground level, at which time he added power and initiated a go-around. The airplane started to roll to the left and, at 20 degrees, the CFI took control of the airplane. The CFI attempted to counter the roll, but the airplane was unresponsive, and he decided to land. The airplane impacted in a left-wing-low attitude. The empennage separated from the fuselage, and all four engine mounts were broken. The operator reported no preimpact mechanical malfunctions or failures with the airplane that would have precluded normal operation. ## Factual narrative The student pilot and flight instructor were practicing touch-and-go landings on runway 26R. While on downwind, the flight instructor retarded the throttle to simulate an emergency. The student pilot continued to fly the airplane and during the landing flare, the airplane began to descend at a faster-than-normal rate. Both the student pilot and the flight instructor attempted to recover; however, the airplane impacted the ground in a left wing low attitude. The empennage separated from the fuselage, and all four engine mounts were broken. The operator reported no preimpact mechanical malfunctions or failures with the airplane that would have precluded normal operation. Winds at the time of the accident were recorded as 240 degrees at 14 knots, gusting to 21 knots. ## Aircraft - Registration: [N942DA](https://openairdocs.org/deregistered/N942DA-2012-02-15), registration cancelled 2012-02-15, S/N C0442, built 2007 (OpenAirDocs) - Reported make and model: DIAMOND AIRCRAFT IND INC DA 20-C1 - Registry model: [Diamond Aircraft Ind DA20-C1](https://openairdocs.org/model/diamond-aircraft-ind-da20-c1) (registry code 2990001) (OpenAirDocs) - Registry engine: [Continental IO-240-B](https://openairdocs.org/engine/continental-io-240-b) (registry code 17177, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: C0442 - Airframe hours: 2659 - Engines: CONT MOTOR IO-240-B 125 horsepower reciprocating - Damage: Substantial damage - Flight: Public aircraft, Public use - Operator: Doss Aviation Inc - Registered owner: Doss Aviation Inc - Airworthiness certificate: Standard, Utility - Last inspection: 100 hour, September 8, 2011 - Departed: PUB, Pueblo, CO - Destination: PUB, Pueblo, CO - Airport: PUB, Pueblo Memorial Airport, runway 26R, 10,498 × 150 ft ## Flight crew As NTSB recorded them. NTSB leaves out names. - Flight instructor; age 49; injuries: none; flight instructor, commercial, airline transport; airplane ratings: multi-engine land, single-engine land; instrument ratings: helicopter, airplane; medical: class 2, with waivers/limitations; last flight review July 26, 2011; seat: left; flight hours: 6,929 total, 190 in this make and model, 190 in the last 90 days, 57 in the last 30 days, 3 in the last 24 hours - Student pilot; age 19; injuries: none; student; medical: unknown; seat: right; flight hours: 0 total, 0 in this make and model ## Weather - Conditions: Visual (VMC), Day - Wind: 240° at 14 knots, gusting 21 - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 70 °F, dew point 21 °F - Altimeter: 29.89 inHg - Observed at: KPUB ## 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 20111024024929A](https://openairdocs.org/incident/20111024024929A), Oct 24, 2011: Diamond Aircraft Ind Inc DA 20-C1, Pueblo, CO, Substantial damage. On October 24, 2011, at 15:37 gmt, N942DA, a Diamond model da 20 instructional aircraft, was substantially damaged when the aircraft departed the runway after… ## Docket (1 files) The files NTSB released with the investigation on November 8, 2011, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=82166. 881 KB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 881 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40357130&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Redacted.PDF 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.