Fixed Wing Single Engine · LYCOMING IO-540 SER · as of May 3, 2026
Resources Engine · Lycoming Engines ↗ Search FAA TCDS ↗
Distribution · currently registered
By state (top 10)
- TX 100.0% 1
By decade of manufacture
- 1970s 100.0% 1
NTSB records
No NTSB-recorded events match ANDERSON GREENWOOD 51 in the indexed corpus.
Research papers
- NTSB Aircraft Accident Reports 2007 · Accident report Attempted Takeoff from Wrong Runway — Comair Flight 5191 Comair 5191 (CRJ-100) Lexington KY, August 27, 2006 — 49 fatalities. Investigation of the wrong-runway takeoff at Lexington Blue Grass.
- arXiv 2026 · arXiv preprint LRDDv3: High-Resolution Long-Range Drone Detection Dataset with Range Information and Thermal Data Unmanned Aerial Vehicles (UAVs) have quickly become common in various airspaces, representing a wide range of applications from recreation flying to commercial photography and package delivery.
- arXiv 2026 · arXiv preprint Magnetohydrodynamic drag on an oscillating sphere in a rotating spherical cavity Oscillating-sphere drag is a classical fluid-mechanics problem, yet no theory simultaneously accounts for confinement, rotation, viscosity and magnetic fields.
- arXiv 2026 · arXiv preprint Wave propagation through periodic arrays of freely floating rectangular floes The two-dimensional propagation of small-amplitude waves through an infinite periodic array of freely-floating rectangular floes is considered under the assumptions of inviscid linearised wave theory.…
- arXiv 2026 · arXiv preprint Particle, kinetic and hydrodynamic models for sea ice floes. Part II: Rotating floes with environmental forces This paper builds on the multiscale modeling framework introduced in Part I (Deng and Ha, Physica D: Nonlinear Phenomena 483 (2025) 134951) for sea-ice floe dynamics with non-rotating floes to the cas…
- Semantic Scholar 2025 · Article (Urban Science) Prediction of Urban Air Mobility and Drone Accident Rates and the Role of Urban Management Systems Urban air mobility (UAM) and drones can significantly improve traffic movement in saturated cities because the skies above them are not frequently used; furthermore, they do not require large-scale in…
Airworthiness directives
No matching airworthiness directives are on file for this make and model in the Federal Register.
Type certificate data sheets · 1 match in the FAA catalog
- A11SW Anderson Greenwood & Company Current Rev 2 · 07/01/1980
Models: 51, 51A
Supplemental type certificates · 26 on file
- 05/27/2025 STC SA00081NY Installation of Iceman Aviation Supplies, Inc. Carburetor Ice Detector. Alcor LLC DRS ↗
- 05/22/2023 STC SA01435LA Installation of engines modified with Firewall Forward Technologies LLC modified camshaft Centri-Lube Technologies LLC DRS ↗
- 07/11/2019 STC SA03286CH Install an electronic engine ignition system Electroair Acquisition Corporation DRS ↗
- 07/11/2019 STC SA04032CH Install rocker switch assemblies Electroair Acquisition Corporation DRS ↗
- 06/09/2016 STC SA00081NY Installation of Iceman Aviation Supplies, Inc. Carburetor Ice Detector. Alcor Inc. DRS ↗
- 04/04/2016 STC SA03286CH Install an electronic engine ignition system Electroair Acquisition Corporation DRS ↗
- 10/14/2015 STC SA03286CH Install an electronic engine ignition system Electroair Acquisition Corporation DRS ↗
- 10/08/2015 STC SA04032CH Install rocker switch assemblies Electroair Acquisition Corporation DRS ↗
- 01/15/2015 STC SA03286CH Install an electronic engine ignition system Electroair Acquisition Corporation DRS ↗
- 05/25/2011 STC SA01435LA Installation of engines modified with Firewall Forward Technologies LLC modified camshaft Centri-Lube Technologies LLC DRS ↗
- 06/15/2010 STC SA01435DE Installation of engines, modified with a Firewall Forward Technologies. Centri-Lube Technologies LLC DRS ↗
- 06/15/2010 STC SA01435LA Installation of engines modified with Firewall Forward Technologies LLC modified camshaft Centri-Lube Technologies LLC DRS ↗
- 11/10/2009 STC SA01435LA Installation of engines modified with Firewall Forward Technologies LLC modified camshaft Centri-Lube Technologies LLC DRS ↗
- 11/10/2009 STC SA01435DE Installation of engines, modified with a Firewall Forward Technologies Centri-Lube Technologies LLC DRS ↗
- 02/10/2009 STC SA593CH (Page 1) Install Champion SlickSTART magneto booster system. Champion Aerospace LLC DRS ↗
- 06/27/2006 STC SA01435LA Installation of engines modified with Firewall Forward Technologies LLC modified camshaft Firewall Forward Technologies LLC DRS ↗
- 03/12/2004 STC SA593CH (1 OF 5) Install Champion SlickSTART magneto booster system. Champion Aerospace LLC DRS ↗
- 12/18/2003 STC SA01435LA Installation of engines modified with Firewall Forward Technologies LLC modified camshaft Firewall Forward Technologies LLC DRS ↗
- 02/14/2003 STC SA01435LA Installation of engines, modified with a Firewall Forward Technologies, LLC modified camshaft, into aircraft listed. Installation must be done concurrently with STC SE01436LA whic… Firewall Forward Inc DRS ↗
- 12/05/2002 STC SA489EA Installation of ARP Inc. carburetor ice detection system Aircraft & Rotorcraft Products (ARP) Inc DRS ↗
- 05/15/2002 STC SA00081NY Installation of Iceman Aviation Supplies Inc. Carburetor Ice Detector. Lamar Technologies Corporation DRS ↗
- 04/20/2000 STC SA593CH Install Unison SlickSTART tm magneto booster system. Unison Industires DRS ↗
- 12/07/1995 STC SA00081NY Installation of Iceman Aviation Supplies Inc. Carburetor Ice Detector. Iceman Aviation Supplies Inc DRS ↗
- 11/06/1992 STC SA5159NM Installation of chip detector system. Northwest Aircraft, Inc DRS ↗
- 11/06/1992 STC SA5159NM (1 OF 2) Installation of chip detector system. Northwest Aircraft Inc DRS ↗
- 12/07/1983 STC SA3226SW-D Installation of Mitchell automatic flight system model AK700 consisting of a Century IV autopilot or AK700 FD consisting of Century IV flight director autopilot with optional remot… Century Flight Systems Inc DRS ↗
PMA replacement parts · 8 on file
- EIS-61000-5C#https://drs.faa.gov/browse/excelExternalWindow/6CBA9EA224E99ED086257FAB0068F939.0001## Electroair Electronic Ignition System (Kit) Electroair Acquisition Corporation replaces Modification Part
- EIS-61000-5M#https://drs.faa.gov/browse/excelExternalWindow/5C8952A3E087CA4286257FAB0068F93A.0001## Electroair Electronic Ignition System (Kit) Electroair Acquisition Corporation replaces Modification Part
- EA-22000#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID179970078620220525194336.0001## Controller Wire Harness (14 Pin) Electroair Acquisition Corporation replaces Modification Part
- EA-22000T#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID155719710720220525194448.0001## Controller Wire Harness- Twin (14 Pin) Electroair Acquisition Corporation replaces Modification Part
- EA-21000#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID157044848520220525194204.0001## Six-Cylinder Ignition Controller Electroair Acquisition Corporation replaces Modification Part
- EA-23000-A#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID715265899320210923143648.0001## EA-23000 Ignition/Starter Switch Panel Electroair Acquisition Corporation replaces Modification Part
- EA-23000-A#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID225161709620210923143750.0001## EA-23000 Ignition/Starter Switch Panel Electroair Acquisition Corporation replaces Modification Part
- Mitchell Model AK700 or AK700FD#https://drs.faa.gov/browse/excelExternalWindow/0D2F5FF933FD51D78625752E005EBCA8.0001## Century IV Autopilot or Century IV Flight Director Autopilot Century Flight Systems Inc replaces -
Advisory circulars & Federal Register
Advisory circulars
No ACs explicitly mention this type. Showing universal operating-rule ACs that apply to all aircraft.
Recent Federal Register · Parts 91 & 43
- 2026-09-14 Use of Certain Restricted Category Aircraft for the Transport of Firefighters for Wildfire Suppression FR ↗
- 2026-07-31 Requirements for Interference-Tolerant Radio Altimeter Systems FR ↗
- 2026-07-02 Enabling Supersonic Overland Flight FR ↗
- 2026-07-01 Mechanic Certification: Inspection Rating and Recent Experience Requirements FR ↗
- 2026-06-30 Designation-Restrict the Operation of Unmanned Aircraft in Close Proximity to a Fixed Site Facility; Extension of Comment Period FR ↗
Registered N-numbers · 1
1 of 1 ● NTSB events on file · orange tails have Atlas pages · Look up queries the live FAA registry (owner, address, last airworthiness)
| N-number | St | Year | NTSB | FAA |
|---|---|---|---|---|
| N251AG | TX | 1976 | · | Look up ↗ |
Source — FAA Aircraft Registry
Sources
- FAA Aircraft Registry ↗ Refreshed Apr 27, 2026 Available
- NTSB CAROL ↗ Refreshed Apr 27, 2026 Available
- Federal Register (FAA Airworthiness Directives) ↗ Refreshed Apr 27, 2026 Available