# N411WW: 2011 Alexander Schleicher ASH 31 MI - Status: Valid registration - Airframe: [Alexander Schleicher ASH 31 MI](https://openairdocs.org/model/alexander-schleicher-ash-31-mi) (registry code 3801549, 1 seats) - Engine: [Austro E4(11OR)](https://openairdocs.org/engine/austro-e4-11or) (registry code 06406) - Data sheets: [TCDS E00081EN](https://openairdocs.org/tcds/E00081EN) (Austro Engine GmbH) (OpenAirDocs) - Serial number: 31052 - Year built: 2011 - Type: Glider - Engine type: Rotary - Airworthiness: Experimental, racing - Airworthiness date: November 19, 2025 - Certificate issued: July 15, 2025 - Expires: July 31, 2032 - Mode S code: A4D9E0 - Registered owner: [Wuerker Christopher K](https://openairdocs.org/faa-owner/WUERKER%20CHRISTOPHER%20K) - Location: [Alexandria, VA](https://openairdocs.org/faa-place/VA/Alexandria) - Owner type: Individual - Owner's area on the map: 38.8200° N, 77.0593° W: Placed by OpenAirDocs at the center of ZIP code 22301, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft is based - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=411WW - Page: https://openairdocs.org/aircraft/N411WW 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. ## ADs that may apply (OpenAirDocs): 11 in force ### Matched by airframe (Alexander Schleicher ASH 31 MI) None in force. ### Matched by engine (Austro E4(11OR)) - [AD 2025-02-12](https://openairdocs.org/ad/2025-02-12): Reciprocating Engine Cylinder Section; Reciprocating Engine Oil System · Austro Engine E4 and E4P. Effective Apr 1, 2025 - [AD 2024-19-10](https://openairdocs.org/ad/2024-19-10): Engine (Reciprocating) · Austro Engine E4 and E4P. Effective Oct 9, 2024 - [AD 2024-05-01](https://openairdocs.org/ad/2024-05-01): Reciprocating Engine Power Section · Austro Engine E4 and E4P. Effective Mar 11, 2024 - [AD 2022-03-03](https://openairdocs.org/ad/2022-03-03): Reciprocating Engine Power Section · Austro Engine E4 and E4P. Effective Feb 14, 2022 - [AD 2021-24-10](https://openairdocs.org/ad/2021-24-10): Reciprocating Engine Oil System · Austro Engine E4 and E4P. Effective Dec 27, 2021 - [AD 2021-17-01](https://openairdocs.org/ad/2021-17-01): Reciprocating Engine Oil System · Austro Engine E4 and E4P. Effective Aug 23, 2021 - [AD 2020-22-14](https://openairdocs.org/ad/2020-22-14): Reciprocating Engine Supercharger · Austro Engine E4 and E4P. Effective Dec 10, 2020 - [AD 2020-15-05](https://openairdocs.org/ad/2020-15-05): Reciprocating Engine Power Section · Austro Engine E4 and E4P. Effective Aug 31, 2020 - [AD 2020-14-07](https://openairdocs.org/ad/2020-14-07): Fuel Control/Reciprocating Engines and Reciprocating Engine Power Section · Austro Engine E4 and E4P. Effective Aug 25, 2020 - [AD 2014-08-10](https://openairdocs.org/ad/2014-08-10): Gate controllers · Austro Engine E4. Effective Jun 3, 2014 - [AD 2011-18-19](https://openairdocs.org/ad/2011-18-19): High-pressure (HP) fuel pumps · Austro Engine E4. Effective Oct 6, 2011 ### Historical (superseded or no longer in force) - [AD 2023-20-03](https://openairdocs.org/ad/2023-20-03) (historical): Reciprocating Engine Cylinder Section, Reciprocating Engine Oil System · Austro Engine E4 and E4P. Effective Dec 11, 2023 - [AD 2021-22-20](https://openairdocs.org/ad/2021-22-20) (historical): Reciprocating Engine Power Section · Austro Engine E4 and E4P. Effective Nov 16, 2021 - [AD 2021-09-04](https://openairdocs.org/ad/2021-09-04) (historical): Reciprocating Engine Oil System · Austro Engine E4 and E4P. Effective May 10, 2021 - [AD 2018-18-02](https://openairdocs.org/ad/2018-18-02) (historical): Reciprocating Engine Power Section · Austro Engine E4 and E4P. Effective Nov 29, 2018 - [AD 2018-07-16](https://openairdocs.org/ad/2018-07-16) (historical): Reciprocating Engine Supercharger · Austro Engine E4 and E4P. Effective Apr 27, 2018 - [AD 2013-14-08](https://openairdocs.org/ad/2013-14-08) (historical): Waste gate controller lever · Austro Engine E4. Effective Aug 21, 2013 - [AD 2010-23-09](https://openairdocs.org/ad/2010-23-09) (historical): High pressure (HP) fuel pumps · Austro Engine E4. Effective Nov 22, 2010 ## Information bulletins (advisory) None matched. ## NTSB investigations None matched to N411WW. ## NTSB investigations on N411WW 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 DEN99IA053](https://openairdocs.org/ntsb/DEN99IA053), Mar 13, 1999: Gulfstream G-IV (N411WW), Durango, CO, incident, minor damage. Probable cause: The failure of the number four fuel line. Factors were the chaffing of the alternator's electrical wires on the number four fuel line, and the subsequent fire in the number one engine nacelle. ## FAA accident and incident reports None matched to N411WW. ## Reports on N411WW not matched to an aircraft (1) They name N411WW, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft. - [Incident 19990313014129I](https://openairdocs.org/incident/19990313014129I), Mar 13, 1999: Gulstm GIV (N411WW), Durango, CO, Minor damage. (.19) On March 13, 1999, approximately 1530 mountain standard time, a Gulfstream aerospace g-iv, N411WW, received minor damage to the left engine following an… ## 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 (Austro E4(11OR)) - [STC SE03232CH](https://openairdocs.org/stc/SE03232CH): Installation of Engine Preheat Kit p/n TA2925-1 for 115 volt application. Hartzell Propeller Inc ## Related - Other Alexander Schleicher ASH 31 MI aircraft: https://openairdocs.org/model/alexander-schleicher-ash-31-mi/aircraft.md - The Austro E4(11OR) engine: https://openairdocs.org/engine/austro-e4-11or.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.