# N6139D: 2000 Skyranger/Best OFF SKYRANGER II - Status: Valid registration - Airframe: [Skyranger/Best OFF SKYRANGER II](https://openairdocs.org/model/skyranger-best-off-skyranger-ii) (registry code 05903CG, 2 seats) - Engine: [Rotax 912S series](https://openairdocs.org/engine/rotax-912s-series) (registry code 55570) - Data sheets: [TCDS E00051EN](https://openairdocs.org/tcds/E00051EN) (BRP-Rotax GmbH & Co KG) (OpenAirDocs) - Serial number: SKR0112156 - Year built: 2000 - Type: Fixed wing single engine - Engine type: 4 cycle - Airworthiness: Experimental, registered before 01/31/08 - Airworthiness date: November 14, 2007 - Certificate issued: April 21, 2011 - Expires: April 30, 2030 - Mode S code: A7FD7A - Registered owner: [Hall Timothy F](https://openairdocs.org/faa-owner/HALL%20TIMOTHY%20F) - Location: [Pittston, ME](https://openairdocs.org/faa-place/ME/Pittston) - Owner type: Individual - Owner's area on the map: 44.1951° N, 69.7938° W: Placed by OpenAirDocs at the center of ZIP code 04345, within about 5 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=6139D - Page: https://openairdocs.org/aircraft/N6139D From the FAA registry file of October 24, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination. The registry lists only the engine series, so ADs for every Rotax 912S model are included. ## ADs that may apply (OpenAirDocs): 15 in force ### Matched by airframe (Skyranger/Best OFF SKYRANGER II) None in force. ### Matched by engine (Rotax 912S series) - [AD 2026-16-11](https://openairdocs.org/ad/2026-16-11): Reciprocating Engine Front Section · BRP-Rotax 912 F2, 912 F3, 912 F4 and 16 more. Effective Aug 28, 2026 - [AD 2023-17-13](https://openairdocs.org/ad/2023-17-13): Reciprocating Engine Front Section · BRP-Rotax 912 F2, 912 F3, 912 F4 and 16 more. Effective Sep 20, 2023 - [AD 2019-10-04](https://openairdocs.org/ad/2019-10-04): Reciprocating Engine Cylinder Section · BRP-Rotax 912 F2, 912 F3, 912 F4 and 6 more. Effective Jul 10, 2019 - [AD 2016-23-04](https://openairdocs.org/ad/2016-23-04): Carburetor floats · BRP-Rotax 912 F2, 912 F3, 912 F4 and 6 more. Effective Dec 7, 2016 - [AD 2016-13-04](https://openairdocs.org/ad/2016-13-04): Engine coolant temperature limit · BRP--POWERTRAIN 912 F2, 912 F3, 912 F4 and 6 more. Effective Jul 27, 2016 - [AD 2013-15-19](https://openairdocs.org/ad/2013-15-19): Excessive oil consumption · BRP--POWERTRAIN 912 F2, 912 F3, 912 F4 and 6 more. Effective Aug 27, 2013 - [AD 2012-16-13](https://openairdocs.org/ad/2012-16-13): Pressure side fuel hose · BRP--POWERTRAIN 912 F2, 912 F3, 912 F4 and 3 more. Effective Sep 10, 2012 - [AD 2012-04-03](https://openairdocs.org/ad/2012-04-03): Oil pump attachment bolts · BRP--POWERTRAIN 912 S2, 912 S3 and 914 F2. Effective Mar 16, 2012 - [AD 2011-25-02](https://openairdocs.org/ad/2011-25-02): Crankshaft · BRP--POWERTRAIN 912 F2, 912 F3, 912 F4 and 6 more. Effective Dec 22, 2011 - [AD 2011-12-04](https://openairdocs.org/ad/2011-12-04): Washers · Bombardier-Rotax 912 F3, 912 S2, 912 S3 and 4 more. Effective Jun 27, 2011 - [AD 2010-20-23](https://openairdocs.org/ad/2010-20-23): Engine crankcase · Bombardier-Rotax 912 F2, 912 F3, 912 F4 and 6 more. Effective Nov 8, 2010 - [AD 2010-18-14](https://openairdocs.org/ad/2010-18-14): Fuel pressure · Bombardier-Rotax 912 F2, 912 F3, 912 F4 and 3 more. Effective Oct 13, 2010 - [AD 2005-01-14](https://openairdocs.org/ad/2005-01-14): Valve train on all engines · BRP--POWERTRAIN 912 F2, 912 F3, 912 F4 and 6 more. Effective Feb 15, 2005 - [AD 2002-19-09](https://openairdocs.org/ad/2002-19-09): Fuel pump assembly · BRP--POWERTRAIN 912 F2, 912 F3, 912 F4 and 3 more. Effective Oct 10, 2002 - [AD 2002-16-07](https://openairdocs.org/ad/2002-16-07): Valve Spring Retainers · BRP--POWERTRAIN 912 F2, 912 F3, 912 F4 and 6 more. Effective Sep 3, 2002 ### Historical (superseded or no longer in force) - [AD 2013-07-12](https://openairdocs.org/ad/2013-07-12) (historical): Cylinder heads · BRP--POWERTRAIN 912 F2, 912 F3, 912 F4 and 6 more. Effective Apr 30, 2013 - [AD 2002-21-16](https://openairdocs.org/ad/2002-21-16) (historical): Valve train · Bombardier-Rotax 912 F2, 912 F3, 912 F4 and 6 more. Effective Oct 28, 2002 ## Information bulletins (advisory) (2 in force) - [SAIB NE-05-84R1](https://openairdocs.org/saib/NE-05-84R1): Reciprocating Engine Liquid Cooling: Bombardier-Rotax 912 & 914 Series Engines. Issued Sep 10, 2009 - [SAIB NE-08-36](https://openairdocs.org/saib/NE-08-36): BRP-Rotax 912 A, 912 F, 912 S, & 914 F Series Reciprocating Engines. Issued Jul 16, 2008 - [SAIB NE-05-84](https://openairdocs.org/saib/NE-05-84) (historical): . Issued Aug 30, 2005 ## NTSB investigations None matched to N6139D. ## NTSB investigations on N6139D not matched to an aircraft (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 FTW73FPM08](https://openairdocs.org/ntsb/FTW73FPM08), Apr 27, 1973: Piper PA-22 (N6139D), Vinita, OK, substantial damage ## FAA accident and incident reports None matched to N6139D. ## Reports on N6139D not matched to an aircraft (2) They name N6139D, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft. - [Incident 19830527066719I](https://openairdocs.org/incident/19830527066719I), May 27, 1983: Cessna 170B (N6139D), Williston, ND, Minor damage. Lost directional control during a practice stop and go landing. Ground looped. - [Accident 19730427010039A](https://openairdocs.org/incident/19730427010039A), Apr 27, 1973: Piper PA22150 (N6139D), Vinita, OK, Substantial damage. Lndd on unlighted and uncontrolled airport marked closed. ## Service difficulty reports None filed for this aircraft. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. ## STCs that may be installed (OpenAirDocs) (1) Approved for this aircraft's airframe or engine model, in force first, then newest. The registry doesn't record which STCs an aircraft has; its records do. ### Approved for the engine (Rotax 912S series) - [STC SE01966WI](https://openairdocs.org/stc/SE01966WI): Use of GAMI G100UL High Octane Unleaded Avgas in spark ignition piston aircraft engines. General Aviation Modifications Inc. Lists 912 S2 ## Related - Other Skyranger/Best OFF SKYRANGER II aircraft: https://openairdocs.org/model/skyranger-best-off-skyranger-ii/aircraft.md - The Rotax 912S series engine: https://openairdocs.org/engine/rotax-912s-series.md --- 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.