# NTSB DEN00LA108: Piper PA-44-180T, N838PC, Englewood, CO, June 12, 2000 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: June 11, 2000, 22:04 local (Jun 12, 2000, 04:04 UTC) - Place: Englewood, CO - Coordinates: 39.579387, -104.860916 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=39.5794&lon=-104.8609&mi=10 - Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 3 uninjured - Status: Completed, report November 25, 2003 - Report: Approved by Office Director - NTSB case key (mKey): 49412 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN00LA108 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/49412/pdf - Page: https://openairdocs.org/ntsb/DEN00LA108 ## Probable cause (aircraft 2) Failure of the instructor pilot-in-command and the pilot receiving instruction to maintain directional control. Factors were the pilot receiving instruction allowing the airplane to approach low and slow, and failure of the instructor to maintain adequate supervision of the flight. ## Probable cause (aircraft 1) Failure of the instructor pilot-in-command and the pilot receiving instruction to maintain directional control. Factors were the pilot receiving instruction allowing the airplane to approach low and slow, and failure of the instructor to maintain adequate supervision of the flight. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - In flight collision with object, go-around (vfr) - airspeed - low, dual student (contributing factor) - altitude - low, dual student (contributing factor) - directional control - not maintained, flightcrew (cause) - supervision - inadequate, pilot in command(cfi) (contributing factor) - object - aircraft moving on ground - On ground/water collision with object, taxi - from landing - object - other - airspeed - low, pilot of other aircraft (contributing factor) - altitude - low, pilot of other aircraft (contributing factor) - directional control - not maintained, pilot of other aircraft (cause) - supervision - inadequate, pilot of other aircraft (contributing factor) ## Analysis (aircraft 2) The private pilot receiving instruction aboard N838PC, a Piper PA-44-180T, were said the approach to runway 17R was 'slightly low and slightly slow.' The pilot of N4741N, a Cessna 182Q, had just landed and was taxiing north, parallel to the runway. The instructor aboard the Piper reduced power on the left engine to idle to simulate a single engine approach. He said the student 'was making too many corrections,' so he added power. The airplane veered right, and the pilots overcorrected. The airplane veered to the left and struck the taxiing Cessna. The Piper was landed in the grass median between the two parallel runways. Dark night visual meteorological conditions prevailed. ## Analysis (aircraft 1) The private pilot receiving instruction aboard N838PC, a Piper PA-44-180T, were said the approach to runway 17R was 'slightly low and slightly slow.' The pilot of N4741N, a Cessna 182Q, had just landed and was taxiing north, parallel to the runway. The instructor aboard the Piper reduced power on the left engine to idle to simulate a single engine approach. He said the student 'was making too many corrections,' so he added power. The airplane veered right, and the pilots overcorrected. The airplane veered to the left and struck the taxiing Cessna. The Piper was landed in the grass median between the two parallel runways. Dark night visual meteorological conditions prevailed. ## Factual narrative (aircraft 2) See narrative for DEN00-L-A108A. ## Factual narrative (aircraft 1) On June 11, 2000, at 2204 mountain daylight time, a Piper PA-44-180T, N838PC, operated by Aspen Flying Club, Inc., received minor damage when it collided with a Cessna 182Q, N4741N, operated by its owner, at Centennial Airport, Englewood, Colorado. The Cessna 182Q was substantially damaged. The PA-44-180T was attempting to make a go-around, and the Cessna 182Q was taxiing from landing. There were no injuries to the commercial certificated flight instructor and private pilot receiving instruction aboard the PA-44-180T, nor were there any injuries to the private pilot, the sole occupant, aboard the Cessna 182Q. Dark night visual meteorological conditions prevailed, and no flight plans had been filed. Both airplanes were being operated under Title 14 CFR Part 91 by the pilots. The PA-44-180T was on an instructional flight; the Cessna 182Q was on a personal flight. Both flights originated at Centennial Airport. According to the accident report submitted by the flight instructor pilot-in-command of the Piper PA-44-180T, they were making a simulated single engine approach to runway 17R. His student "was making too many corrections," so he increased power to the idling engine. The airplane veered right, and he told the student to add power and lower the nose. As power was added, the airplane veered to the left and struck the taxiing Cessna 182Q. The two pilots landed the PA-44-180T in the grass median between the two parallel runways. According to the accident report submitted by the pilot receiving instruction, the simulated failure was to the left engine. The approach was "slightly low and slightly slow." Over the runway threshold, the instructor increased power on the left engine to 20 inches of manifold pressure. The airplane veered sharply to the right "and we over corrected to the left, taking us into the grass." Full power was applied for a go-around. As they flew over the median, they noticed an airplane on taxiway Bravo and tried to avoid a collision. The Piper PA-44-180T struck the outboard portion of the Cessna 182's left wing. The accident report submitted by the pilot of the Cessna 182Q corroborated the reports submitted by the pilots of the Piper PA-44-180T. The pilot did add an explanatory diagram. ## Aircraft 1 - Registration: [N838PC](https://openairdocs.org/aircraft/N838PC), registered now, S/N 448107056, built 1981 (OpenAirDocs) - Reported make and model: Piper PA-44-180T - Registry model: [Piper PA-44-180T](https://openairdocs.org/model/piper-pa-44-180t) (registry code 7104404) (OpenAirDocs) - Registry engine: [Lycoming T0-360 series](https://openairdocs.org/engine/lycoming-t0-360-series) (registry code 41528, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 44-8107056 - Airframe hours: 2580 - Engines: Lycoming TO-360-E1A6D 180 horsepower reciprocating - Damage: Minor damage - Flight: Instructional, Part 91 - Operator: Aspen Flying Club - Registered owner: Richard J. Handelman - Airworthiness certificate: Standard, Normal - Last inspection: 100 hour, May 24, 2000, 100 hours before - Departed: APA - Airport: APA, Centennial, runway 17R, 7,004 × 77 ft, asphalt ## Aircraft 2 - Registration: [N4741N](https://openairdocs.org/aircraft/N4741N), registered now, S/N 18267330, built 1979 (OpenAirDocs) - Reported make and model: Cessna 182Q - Registry model: [Cessna 182Q](https://openairdocs.org/model/cessna-182q) (registry code 2072732) (OpenAirDocs) - Registry engine: [Continental O-470 series](https://openairdocs.org/engine/continental-o-470-series) (registry code 17026, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 18267330 - Airframe hours: 1817 - Engines: Continental O-470-U 230 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Stan B. New - Airworthiness certificate: Standard, Normal - Last inspection: Annual, January 13, 2000, 45 hours before - Departed: APA - Airport: APA, Centennial ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot, aircraft N838PC; age 33; commercial, flight instructor; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: right; flight hours: 1,275 total, 20 in this make and model, 1,190 as pilot in command, 100 in the last 90 days, 50 in the last 30 days, 3 in the last 24 hours - Pilot, aircraft N4741N; age 51; private; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 323 total, 304 in this make and model, 260 as pilot in command, 20 in the last 90 days, 11 in the last 30 days, 2 in the last 24 hours ## Weather - Conditions: Visual (VMC), Night/dark - Wind: 180° at 8 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 64 °F, dew point 37 °F - Altimeter: 30.00 inHg - Observed at: APA ## FAA reports on this event (2) The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs). - [Accident 20000611009749A](https://openairdocs.org/incident/20000611009749A), Jun 11, 2000: Piper PA44180T, Englewood, CA, No damage. (-23) PIC brown lost control of a/c at very low altitude while attemptiong to have the student pilot land with a simulated engine failure on the a/c. pilot… - [Accident 20000611010299A](https://openairdocs.org/incident/20000611010299A), Jun 11, 2000: Cessna 182Q, Denver, CO, No damage. (-23) Pilot, new, was taxiing his C-182 aircraft northbound on the taxiway between runways 17L and 17R at apa when he felt something hit his aircraft and… 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.