# Rotax 503DCSI - Type: Engine model (FAA registry) - Registry code: 55567 - Manufacturer (registry): ROTAX - Model: 503DCSI - Engine type: 2 cycle - Power: 52 hp - Installed in: 72 registered aircraft - Page: https://openairdocs.org/engine/rotax-503dcsi Model codes come from the FAA registry's reference file. ## ADs that may apply (OpenAirDocs) Matched to this engine model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment. None matched. ## Registered aircraft (72, first 50) - [N103HV](https://openairdocs.org/aircraft/N103HV): [Ledoux Joseph P](https://openairdocs.org/faa-owner/LEDOUX%20JOSEPH%20P), [Bridge City, TX](https://openairdocs.org/faa-place/TX/Bridge%20City), built 2001, S/N 021 - [N109LT](https://openairdocs.org/aircraft/N109LT): [Adams Robert E](https://openairdocs.org/faa-owner/ADAMS%20ROBERT%20E), [Sullivan, MO](https://openairdocs.org/faa-place/MO/Sullivan), built 1997, S/N CH2-1313-422 - [N114TT](https://openairdocs.org/aircraft/N114TT): [Pyle Lester D](https://openairdocs.org/faa-owner/PYLE%20LESTER%20D), [Kingfisher, OK](https://openairdocs.org/faa-place/OK/Kingfisher), built 1995, S/N T92503COHK0040 - [N142CG](https://openairdocs.org/aircraft/N142CG): [Meadows Larry W](https://openairdocs.org/faa-owner/MEADOWS%20LARRY%20W), [Wimauma, FL](https://openairdocs.org/faa-place/FL/Wimauma), built 1990, S/N 90131 - [N142MB](https://openairdocs.org/aircraft/N142MB): [Fordahl Craig A](https://openairdocs.org/faa-owner/FORDAHL%20CRAIG%20A), [Loretto, MN](https://openairdocs.org/faa-place/MN/Loretto), built 2007, S/N 001 - [N181DL](https://openairdocs.org/aircraft/N181DL): [Opperman Robert Michael](https://openairdocs.org/faa-owner/OPPERMAN%20ROBERT%20MICHAEL), [Peoria, AZ](https://openairdocs.org/faa-place/AZ/Peoria), built 2013, S/N 0913-001-CH1 - [N181M](https://openairdocs.org/aircraft/N181M): [Mccroskey Danny D](https://openairdocs.org/faa-owner/MCCROSKEY%20DANNY%20D), [Ward, AR](https://openairdocs.org/faa-place/AR/Ward), built 1992, S/N 0392106 - [N194PG](https://openairdocs.org/aircraft/N194PG): [Mcgee Michael J](https://openairdocs.org/faa-owner/MCGEE%20MICHAEL%20J), [Summerville, SC](https://openairdocs.org/faa-place/SC/Summerville), built 1993, S/N 1993P - [N19636](https://openairdocs.org/aircraft/N19636): [English John Day](https://openairdocs.org/faa-owner/ENGLISH%20JOHN%20DAY), [Richmond, CA](https://openairdocs.org/faa-place/CA/Richmond), built 1993, S/N CH20893CW1011 - [N1992C](https://openairdocs.org/aircraft/N1992C): [Gray Shane C](https://openairdocs.org/faa-owner/GRAY%20SHANE%20C), [Interlochen, MI](https://openairdocs.org/faa-place/MI/Interlochen), S/N 001 - [N203M](https://openairdocs.org/aircraft/N203M): [Lewis Landon J](https://openairdocs.org/faa-owner/LEWIS%20LANDON%20J), [Hope, ND](https://openairdocs.org/faa-place/ND/Hope), built 2015, S/N SPRINT 11 242 - [N212N](https://openairdocs.org/aircraft/N212N): [Mapes Joseph S](https://openairdocs.org/faa-owner/MAPES%20JOSEPH%20S), [Stevens Point, WI](https://openairdocs.org/faa-place/WI/Stevens%20Point), built 2007, S/N 001 - [N217AB](https://openairdocs.org/aircraft/N217AB): [Johnson Kevin W](https://openairdocs.org/faa-owner/JOHNSON%20KEVIN%20W), [Hardwood, MI](https://openairdocs.org/faa-place/MI/Hardwood), built 1996, S/N 1008 - [N2518W](https://openairdocs.org/aircraft/N2518W): [Heidger Roy E](https://openairdocs.org/faa-owner/HEIDGER%20ROY%20E), [Hortonville, WI](https://openairdocs.org/faa-place/WI/Hortonville), built 1997, S/N HHF 5848 - [N2558N](https://openairdocs.org/aircraft/N2558N): [Gard George A](https://openairdocs.org/faa-owner/GARD%20GEORGE%20A), [Irving, NY](https://openairdocs.org/faa-place/NY/Irving), built 2007, S/N 001 - [N2574W](https://openairdocs.org/aircraft/N2574W): [Westfield Technical Academy](https://openairdocs.org/faa-owner/WESTFIELD%20TECHNICAL%20ACADEMY), [Westfield, MA](https://openairdocs.org/faa-place/MA/Westfield), built 2002, S/N 2002-20 - [N2639T](https://openairdocs.org/aircraft/N2639T): [Hudgins John M](https://openairdocs.org/faa-owner/HUDGINS%20JOHN%20M), [Era, TX](https://openairdocs.org/faa-place/TX/Era), built 1995, S/N 0007 - [N2827A](https://openairdocs.org/aircraft/N2827A): [Osborn John L](https://openairdocs.org/faa-owner/OSBORN%20JOHN%20L), [Goodwine, IL](https://openairdocs.org/faa-place/IL/Goodwine), built 1988, S/N FP-404-041989 - [N2844C](https://openairdocs.org/aircraft/N2844C): [Greenville, MI](https://openairdocs.org/faa-place/MI/Greenville), S/N CH2-0205-CW-2591, Registration pending - [N29GK](https://openairdocs.org/aircraft/N29GK): [Mcentee Richard J](https://openairdocs.org/faa-owner/MCENTEE%20RICHARD%20J), [Mount Dora, FL](https://openairdocs.org/faa-place/FL/Mount%20Dora), built 2001, S/N 10GDK - [N301CD](https://openairdocs.org/aircraft/N301CD): [Platt Jerry R](https://openairdocs.org/faa-owner/PLATT%20JERRY%20R), [Marysville, WA](https://openairdocs.org/faa-place/WA/Marysville), built 1984, S/N PH 00186 - [N3079H](https://openairdocs.org/aircraft/N3079H): [Hartsoe Robert Anthony](https://openairdocs.org/faa-owner/HARTSOE%20ROBERT%20ANTHONY), [Kernersville, NC](https://openairdocs.org/faa-place/NC/Kernersville), S/N 5847 - [N3094S](https://openairdocs.org/aircraft/N3094S): [Leinbach Lamar M](https://openairdocs.org/faa-owner/LEINBACH%20LAMAR%20M), [Curtiss, WI](https://openairdocs.org/faa-place/WI/Curtiss), built 1990, S/N XYZ2 - [N328BK](https://openairdocs.org/aircraft/N328BK): [Blythe Brian K](https://openairdocs.org/faa-owner/BLYTHE%20BRIAN%20K), [Macomb, IL](https://openairdocs.org/faa-place/IL/Macomb), built 2002, S/N CH2-0102-2181 - [N330TM](https://openairdocs.org/aircraft/N330TM): built 2017, S/N 28496 - [N3504U](https://openairdocs.org/aircraft/N3504U): [Jenkins Michael L](https://openairdocs.org/faa-owner/JENKINS%20MICHAEL%20L), [Tonopah, AZ](https://openairdocs.org/faa-place/AZ/Tonopah), built 1993, S/N H-SSA-939-R503-TRL - [N361ST](https://openairdocs.org/aircraft/N361ST): [Ems Kenneth R](https://openairdocs.org/faa-owner/EMS%20KENNETH%20R), [Biloxi, MS](https://openairdocs.org/faa-place/MS/Biloxi), built 1990, S/N 0189-0388 - [N381AS](https://openairdocs.org/aircraft/N381AS): [Smith Nathan A](https://openairdocs.org/faa-owner/SMITH%20NATHAN%20A), [Selbyville, DE](https://openairdocs.org/faa-place/DE/Selbyville), built 1984, S/N H-SSC-426-503-TRI - [N388D](https://openairdocs.org/aircraft/N388D): [Grunloh Daniel J](https://openairdocs.org/faa-owner/GRUNLOH%20DANIEL%20J), [Loda, IL](https://openairdocs.org/faa-place/IL/Loda), built 1998, S/N A02180-2198 - [N39WA](https://openairdocs.org/aircraft/N39WA): [Angolia Anthony Wayne](https://openairdocs.org/faa-owner/ANGOLIA%20ANTHONY%20WAYNE), [Warsaw, VA](https://openairdocs.org/faa-place/VA/Warsaw), built 2004, S/N 039 - [N4368J](https://openairdocs.org/aircraft/N4368J): [Dillon Stephen F](https://openairdocs.org/faa-owner/DILLON%20STEPHEN%20F), [Webster, TX](https://openairdocs.org/faa-place/TX/Webster), built 2006, S/N T0229 - [N457MA](https://openairdocs.org/aircraft/N457MA): [Addis Michael T](https://openairdocs.org/faa-owner/ADDIS%20MICHAEL%20T), [Tucson, AZ](https://openairdocs.org/faa-place/AZ/Tucson), built 1997, S/N 0022 - [N500ZC](https://openairdocs.org/aircraft/N500ZC): [Bell Timothy W](https://openairdocs.org/faa-owner/BELL%20TIMOTHY%20W), [Scotland Neck, NC](https://openairdocs.org/faa-place/NC/Scotland%20Neck), built 2002, S/N CH2-0700-1985 - [N5026J](https://openairdocs.org/aircraft/N5026J): [Foppe Dean D](https://openairdocs.org/faa-owner/FOPPE%20DEAN%20D), [Ottawa, OH](https://openairdocs.org/faa-place/OH/Ottawa), built 2015, S/N CH20887B0267 - [N503BJ](https://openairdocs.org/aircraft/N503BJ): [Skyraider N503bj LLC](https://openairdocs.org/faa-owner/SKYRAIDER%20N503BJ%20LLC), [Chesaning, MI](https://openairdocs.org/faa-place/MI/Chesaning), built 2001, S/N 029 - [N503RL](https://openairdocs.org/aircraft/N503RL): [Foothills Aviation LLC](https://openairdocs.org/faa-owner/FOOTHILLS%20AVIATION%20LLC), [Buhl, ID](https://openairdocs.org/faa-place/ID/Buhl), built 2007, S/N H-SSC-933-503-TRI - [N5066Z](https://openairdocs.org/aircraft/N5066Z): [Jones Donald E](https://openairdocs.org/faa-owner/JONES%20DONALD%20E), [Hollandale, MN](https://openairdocs.org/faa-place/MN/Hollandale), built 1990, S/N 271 - [N5067F](https://openairdocs.org/aircraft/N5067F): [Lein James N](https://openairdocs.org/faa-owner/LEIN%20JAMES%20N), [Cambridge, WI](https://openairdocs.org/faa-place/WI/Cambridge), built 1997, S/N 001 - [N5084J](https://openairdocs.org/aircraft/N5084J): [Curless Glen M](https://openairdocs.org/faa-owner/CURLESS%20GLEN%20M), [Janesville, WI](https://openairdocs.org/faa-place/WI/Janesville), built 2001, S/N SR2CL-2647 - [N5085R](https://openairdocs.org/aircraft/N5085R): [Nicolai Eric A](https://openairdocs.org/faa-owner/NICOLAI%20ERIC%20A), [Garretson, SD](https://openairdocs.org/faa-place/SD/Garretson), S/N 000830 - [N5128M](https://openairdocs.org/aircraft/N5128M): [Coyle Ralph V](https://openairdocs.org/faa-owner/COYLE%20RALPH%20V), [Clarkston, WA](https://openairdocs.org/faa-place/WA/Clarkston), built 2003, S/N 001 - [N51351](https://openairdocs.org/aircraft/N51351): [Adams Michael C](https://openairdocs.org/faa-owner/ADAMS%20MICHAEL%20C), [Saint Louis, MO](https://openairdocs.org/faa-place/MO/Saint%20Louis), built 2000, S/N 001 - [N5161G](https://openairdocs.org/aircraft/N5161G): [Getz Jeremy E](https://openairdocs.org/faa-owner/GETZ%20JEREMY%20E), [Hellertown, PA](https://openairdocs.org/faa-place/PA/Hellertown), S/N 112762 - [N519WD](https://openairdocs.org/aircraft/N519WD): [Stenger Brian](https://openairdocs.org/faa-owner/STENGER%20BRIAN), [Big Horn, WY](https://openairdocs.org/faa-place/WY/Big%20Horn), built 1987, S/N 519 - [N5202P](https://openairdocs.org/aircraft/N5202P): [Jorns Bernard C](https://openairdocs.org/faa-owner/JORNS%20BERNARD%20C), [Millstadt, IL](https://openairdocs.org/faa-place/IL/Millstadt), S/N CP530 - [N5684L](https://openairdocs.org/aircraft/N5684L): [Wright Ronald E](https://openairdocs.org/faa-owner/WRIGHT%20RONALD%20E), [Overland, MO](https://openairdocs.org/faa-place/MO/Overland), built 2004, S/N 3 - [N592JE](https://openairdocs.org/aircraft/N592JE): [Ellebracht Gerald H](https://openairdocs.org/faa-owner/ELLEBRACHT%20GERALD%20H), [Waterloo, IL](https://openairdocs.org/faa-place/IL/Waterloo), built 2007, S/N FS7-2-089 - [N594TC](https://openairdocs.org/aircraft/N594TC): [Chevres Rios Jose Antonio](https://openairdocs.org/faa-owner/CHEVRES%20RIOS%20JOSE%20ANTONIO), [Dorado, PR](https://openairdocs.org/faa-place/PR/Dorado), built 1995, S/N 5690 - [N6003N](https://openairdocs.org/aircraft/N6003N): [Morris Thomas J](https://openairdocs.org/faa-owner/MORRIS%20THOMAS%20J), [Big Rapids, MI](https://openairdocs.org/faa-place/MI/Big%20Rapids), built 1998, S/N 1859965 - [N6037N](https://openairdocs.org/aircraft/N6037N): [Easton Michael A](https://openairdocs.org/faa-owner/EASTON%20MICHAEL%20A), [North Pole, AK](https://openairdocs.org/faa-place/AK/North%20Pole), built 2000, S/N 503-620 All 72: https://openairdocs.org/engine/rotax-503dcsi/aircraft.md ## NTSB investigations (12) 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 ERA22LA136](https://openairdocs.org/ntsb/ERA22LA136), Feb 24, 2022: Flightstar Flightstar II (N194PG), Holly Hill, SC, substantial damage. Probable cause: A loss of control during takeoff for reasons that could not be determined based on the available information, which resulted in a collision with a hangar and trees. - [NTSB WPR20CA255](https://openairdocs.org/ntsb/WPR20CA255), Jul 9, 2020: Air Creation/Sides Rick A Manta 503 (N980WC), Ramona, CA, substantial damage. Probable cause: The solo student pilot's improper landing flare, which resulted in a bounced landing and subsequent nose over. - [NTSB CEN19LA219](https://openairdocs.org/ntsb/CEN19LA219), Jul 6, 2019: Fisher Flying Products Super Koala (N220FF), Hazen, ND, substantial damage. Probable cause: The airplane owner's and mechanic's improper rigging and cable tension of the aileron control system, which resulted in a loss of control during takeoff. - [NTSB ERA18TA193](https://openairdocs.org/ntsb/ERA18TA193), Jul 14, 2018: Quicksilver MXL II (N594TC), Arecibo, PR, substantial damage. Probable cause: The noncertificated pilot's improper fuel planning and management, which resulted in a total loss of engine power due to fuel exhaustion. - [NTSB CEN16LA339](https://openairdocs.org/ntsb/CEN16LA339), Aug 27, 2016: Rans Coyote S 4 (N8024J), Clarksville, TX, substantial damage. Probable cause: The total loss of engine power due to a deteriorated and disconnected fuel line, which resulted in fuel starvation and a subsequent hard, off-field landing. - [NTSB ERA15LA156](https://openairdocs.org/ntsb/ERA15LA156), Mar 15, 2015: Kolb Twinstar (N193Y), Reynolds, GA, substantial damage, 1 fatal. Probable cause: The student pilot’s failure to maintain adequate airspeed while maneuvering, which resulted in the airplane exceeding its critical angle-of-attack and experiencing an aerodynamic stall. Contributing… - [NTSB CEN13LA227](https://openairdocs.org/ntsb/CEN13LA227), Apr 14, 2013: Quad City Ultralight Acft Challenger I (N171DP), Winnie, TX, substantial damage. Probable cause: The noncertificated pilot’s failure to maintain airplane control during takeoff due to his fixation on the instrument panel. - [NTSB ERA11LA307](https://openairdocs.org/ntsb/ERA11LA307), May 22, 2011: Flightstar Flightstar II (N194PG), Grantville, GA, substantial damage. Probable cause: A total loss of engine power while maneuvering due to a seized piston. - [NTSB CEN10LA498](https://openairdocs.org/ntsb/CEN10LA498), Aug 24, 2010: Freeman Super Koala (N220FF), Traverse City, MI, substantial damage. Probable cause: A loss of engine power due to the improper torquing of the number one cylinder's spark plug as a result of inadequate maintenance. - [NTSB MIA08CA191](https://openairdocs.org/ntsb/MIA08CA191), Sep 7, 2008: Airframes Unlimited USA-1B (N723JH), Surry, VA, substantial damage. Probable cause: The pilot's improper handling of the powered parachute during takeoff/initial climb. - [NTSB NYC08CA300](https://openairdocs.org/ntsb/NYC08CA300), Aug 30, 2008: Quicksilver MXL II (N594TC), Barceloneta, PR, substantial damage. Probable cause: The student pilot's failure to maintain control of the airplane during an aborted landing. Contributing to the accident were the high winds. - [NTSB LAX08CA219](https://openairdocs.org/ntsb/LAX08CA219), Jul 7, 2008: Tallent, Chris M. Putts Special (N1959C), Sumter, SC, substantial damage. Probable cause: the pilot's failure to maintain the proper glideslope and clearance from obstacles. Contributing to the accident was the pilot's limited experience in the airplane type. ## FAA accident and incident reports (13) From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [Accident 20200709008059A](https://openairdocs.org/incident/20200709008059A), Jul 9, 2020: Sides Rick A MANTA 503 (N980WC), Ramona, CA, Substantial damage. While attempting to land on runway 27 At the Ramona Airport, the pilot had difficulty properly lining up the weight-shift controlled aircraft due to a… - [Accident 20190706009269A](https://openairdocs.org/incident/20190706009269A), Jul 6, 2019: Freeman Lloyd C SUPER KOALA (N220FF), Hazen, ND, Substantial damage. This aircraft was manufactured from a kit. The wings had been removed to transport the aircraft to Hazen, ND. The aircraft wings were re-installed and a test… - [Accident 20180714011199A](https://openairdocs.org/incident/20180714011199A), Jul 14, 2018: Quicksilver Aircraft Corp MXL II (N594TC), Arecibo, PR, Substantial damage. On July 14, 2018, about 1740AST, an experimental light sport Quicksilver Mxl II, N594TC, was substantially damaged when it impacted terrain during an approach… - [Accident 20160827016469A](https://openairdocs.org/incident/20160827016469A), Aug 27, 2016: Rans COYOTE S-4 (N8024J), Clarksville, TX, Substantial damage. The aircraft departed from Clarksville airport. Approximately 5 miles from the airport the aircraft experienced a loss of RPM. The pilot was unable to maintain… - [Accident 20150315003339A](https://openairdocs.org/incident/20150315003339A), Mar 15, 2015: Kolb MK-II (N193Y), Reynolds, GA, Substantial damage, 1 fatal. Pilot took off from thomaston-upson county airport (opn) and flew to Reynolds ga. While flying around his cousins house over some trees stalled the aircraft… - [Accident 20130414012499A](https://openairdocs.org/incident/20130414012499A), Apr 14, 2013: Quad City Ultralight Acft Corp CHALLENGER I (N171DP), Winnie, TX, Destroyed. The pilot had just bought a new aircraft, which was registered in the light sport category. The pilot did not hold a sport pilot certificate; however he did… - [Accident 20110522008939A](https://openairdocs.org/incident/20110522008939A), May 22, 2011: Flightstar Inc FLIGHTSTAR II (N194PG), Grantville, GA, Substantial damage. Aircraft departed kcco at about 1745L for a local area part 91 flight, after approximately a 20 min flight the pilot proceeded to a private use field (80GA)… - [Accident 20100824044739A](https://openairdocs.org/incident/20100824044739A), Aug 24, 2010: Freeman Llo SUPER KOALA (N220FF), Traverse City, MI, Substantial damage. Pilot reported aircraft lost engine power . He attemted an emergency landing in a open field, but could not clear a hill. Aircraft impacted the ground and… - [Incident 20091220025599I](https://openairdocs.org/incident/20091220025599I), Dec 20, 2009: Dinsmore TORNADO (N114TT), Mulvane, KS, Minor damage. The pilot became disoriented during a local flight. Due to low fuel, he elected to make a precautionary landing in a field. The airplane suffered minor damage… - [Incident 20090818013089I](https://openairdocs.org/incident/20090818013089I), Aug 18, 2009: Amtr CHALLENGER1 (N319SB), Brighton, CO, Minor damage. (-23) On aug 18, 2009 at 15:30 aircraft N319SB serial number 0892-0393 experienced loss of power during climb at approximately 200' AGL and made an emergency… - [Accident 20080907853229A](https://openairdocs.org/incident/20080907853229A), Sep 7, 2008: Airfrm USA1B (N723JH), Surry, VA, Substantial damage. N723JH, airframe unlimited USA-1B, powered parachute, operated by [privacy data omitted], substantially destroyed a/c upon takeoff there was improper inflation… - [Accident 20080830855479A](https://openairdocs.org/incident/20080830855479A), Aug 30, 2008: Amtr MXLII (N594TC), Carceloneta, PR, Destroyed. On August 30, 2008, around 1300 hrs, the FSDO in san juan, PR was notified by [privacy data omitted] the owner of the aircraft N594TC of an accident which… - [Accident 20080707855129A](https://openairdocs.org/incident/20080707855129A), Jul 7, 2008: Tallen PUTTSSPECIAL (N1959C), Sumter, SC, Substantial damage. (-23) Pilot is a light sport pilot. Pilot states he was on approach and let the aircraft approach to steeply while he was trying to get a better view over the… --- 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.