Skip to content

SOCATA TB21

50 registered · 1985–2005 · 3 NTSB events · 16 ADs

About this data

Fixed Wing Single Engine · LYCOMING TI0-540 SER · as of Sep 21, 2026

Resources Engine · Lycoming Engines ↗ Search FAA TCDS ↗

Distribution · currently registered

By state (top 10)

  • CA 16.3% 8
  • OH 8.2% 4
  • TX 8.2% 4
  • WY 8.2% 4
  • OK 8.2% 4
  • NV 4.1% 2
  • FL 4.1% 2
  • ID 4.1% 2
  • GA 4.1% 2
  • AZ 4.1% 2

+15 more states

By decade of manufacture

  • 1980s 12.0% 6
  • 1990s 14.0% 7
  • 2000s 42.0% 21
  • Unknown 32.0% 16

NTSB records

3 event(s) on file. Showing the most recent 3.

Airworthiness directives

16 directive(s) on file. Showing the most recent 16.

  • Jun 7, 2005

    Airworthiness Directives; Precise Flight, Inc. Models SVS I and SVS IA Standby Vacuum Systems

    The FAA adopts a new airworthiness directive (AD) for all airplanes equipped with Precise Flight, Inc. (Precise Flight) Models SVS I and SVS IA standby vacuum systems (SVS) installed under certain supplemental type certificates or through field approval. This AD requires you to replace the airplane flight manual suppl…

  • Mar 4, 2005

    Airworthiness Directives; Precise Flight, Inc. Models SVS I and SVS IA Standby Vacuum Systems

    The FAA proposes to adopt a new airworthiness directive (AD) for all airplanes equipped with Precise Flight, Inc. (Precise Flight) Models SVS I and SVS IA standby vacuum systems (SVS) installed under certain supplemental type certificates or through field approval. This proposed AD would require you to replace the air…

  • Jan 19, 2005

    Airworthiness Directives; GARMIN International Inc. GTX 33, GTX 33D, GTX 330, and GTX 330D Mode S Transponders

    The FAA is adopting a new airworthiness directive (AD) to supersede Airworthiness Directive 2004-10-15, which applies to certain GTX 330 and GTX 330D Mode S transponders that are installed on airplanes. AD 2004-10-15 currently requires you to install GTX 330/330D Software Upgrade Version 3.03, 3.04, or 3.05. This AD a…

  • Oct 7, 2004

    Airworthiness Directives; GARMIN International Inc. GTX 33, GTX 33D, GTX 330, and GTX 330D Mode S Transponders

    The FAA proposes to supersede Airworthiness Directive (AD) 2004-10-15, which applies to certain GTX 330 and GTX 330D Mode S transponders that are installed on airplanes. AD 2004-10-15 currently requires you to install GTX 330/330D Software Upgrade Version 3.03, 3.04, or 3.05. This proposed AD applies to certain GTX 33…

  • May 21, 2004

    Airworthiness Directives; GARMIN International Inc. GTX 330 Mode S Transponders and GTX 330D Diversity Mode S Transponders

    The FAA adopts a new airworthiness directive (AD) for certain GARMIN International Inc. GTX 330/GTX 330D Mode S transponders that are installed on aircraft. This AD requires you to install GTX 330/330D Software Upgrade Version 3.03, 3.04, or 3.05. This AD is the result of observations that the GTX 330 and GTX 330D may…

  • Dec 30, 2003

    Airworthiness Directives; GARMIN International Inc. GTX 330 Mode S Transponders and GTX 330D Diversity Mode S Transponders

    The FAA proposes to adopt a new airworthiness directive (AD) for certain GARMIN International Inc. GTX 330/GTX 330D Mode S transponders. This proposed AD would require you to install GTX 330/ 330D Software Upgrade Version 3.03. This proposed AD is the result of observations that the GTX 330 and GTX 330D may detect, fr…

  • Oct 3, 2002

    Airworthiness Directives; SOCATA-Groupe AEROSPATIALE Model TB 21 Airplanes

    This amendment adopts a new airworthiness directive (AD) that applies to certain SOCATA--Groupe AEROSPATIALE (Socata) Model TB 21 airplanes. This AD requires you to modify the exhaust system. This AD is the result of mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for France…

  • Jul 2, 2002

    Airworthiness Directives; SOCATA-Groupe AEROSPATIALE Model TB 21 Airplanes

    This document proposes to adopt a new airworthiness directive (AD) that would apply to certain SOCATA--Groupe AEROSPATIALE (Socata) Model TB 21 airplanes. This proposed AD would require you to modify the exhaust system. This proposed AD is the result of mandatory continuing airworthiness information (MCAI) issued by t…

  • May 23, 2001

    Airworthiness Directives; Honeywell KC 225 Automatic Flight Control Systems

    This amendment adopts a new airworthiness directive (AD) that applies to certain Honeywell KC 225 automatic flight control systems (AFCS) that are installed on airplanes. This AD requires you to inspect the KC 225 AFCS to determine the computer modifications (Mods) that are incorporated, deactivate any units with only…

  • Nov 30, 1999

    Airworthiness Directives; Precise Flight, Inc. Model SVS III Standby Vacuum Systems

    This amendment adopts a new airworthiness directive (AD) that applies to all aircraft equipped with Precise Flight, Inc. Model SVS III standby vacuum systems installed in accordance with the applicable supplemental type certificate (STC) or through field approval. This AD requires incorporating revised operating limit…

  • Jul 7, 1999

    Airworthiness Directives; Precise Flight, Inc. Model SVS III Standby Vacuum Systems

    This document proposes to adopt a new airworthiness directive (AD) that would apply to all U.S. owners and operators of aircraft equipped with Precise Flight, Inc. Model SVS III standby vacuum systems installed in accordance with the applicable supplemental type certificate (STC) or through field approval. The propose…

  • Sep 3, 1998

    Airworthiness Directives; SOCATAGroupe AEROSPATIALE Models TB20 and TB21 Airplanes

    This amendment adopts a new airworthiness directive (AD) that applies to certain SOCATA--Groupe AEROSPATIALE (Socata) Models TB20 and TB21 airplanes. This AD requires repetitively inspecting the main landing gear (MLG) attachment bearing (using a dye penetrant method) for cracks, and if cracks are found, replacing the…

  • Jun 26, 1998

    Airworthiness Directives; SOCATAGroupe AEROSPATIALE Models TB20, and TB21 Airplanes

    This document proposes to adopt a new airworthiness directive (AD) that would apply to certain SOCATA--Groupe AEROSPATIALE (Socata) Models TB20 and TB21 airplanes. The proposed action would require repetitively inspecting the main landing gear (MLG) attachment bearing (using a dye penetrant method) for cracks, and if…

  • Feb 10, 1998

    Airworthiness Directives; SOCATA-Groupe AEROSPATIALE Models TB9, TB10, TB20, TB21, and TB200 Airplanes

    This amendment adopts a new airworthiness directive (AD) that applies to certain Socata-Groupe Aerospatiale (Socata) Models TB9, TB10, TB20, TB21, and TB200 airplanes. This AD requires inspecting the bolts and spacers of the upper attachments of the front belts for cracks, dents, etc. (damage); replacing any damaged b…

  • Nov 7, 1997

    Airworthiness Directives; SOCATAGroupe AEROSPATIALE Models TB9, TB10, TB20, TB21, and TB200 Airplanes

    This document proposes to adopt a new airworthiness directive (AD) that would apply to certain SOCATA--Groupe AEROSPATIALE (Socata) Models TB9, TB10, TB20, TB21, and TB200 airplanes. The proposed AD would require inspecting the bolts and spacers of the upper attachments of the front belts for cracks, dents, etc. (dama…

  • Mar 28, 1995

    Airworthiness Directives; Textron Lycoming O-360, LO-360, HO-360, HIO-360, TIO-360, LIO-360, AEIO-360, O-540, IO-540, TIO-540, LTIO-540, IVO-540, AEIO-540, TIO-541, and IO-720 Series Reciprocating Engines

    This document publishes in the Federal Register an amendment adopting Airworthiness Directive (AD) 95-07-01 that was sent previously to all known U.S. owners and operators of Textron Lycoming O-360, LO- 360, HO-360, HIO-360, TIO-360, LIO-360, AEIO-360, O-540, IO-540, TIO- 540, LTIO-540, IVO-540, AEIO-540, TIO-541, and…

SAIBs · 1 on file · advisory, not mandatory

Supplemental type certificates · 47 on file

+ 17 more STCs on file

Registered N-numbers · 50

50 of 50 ● 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
N113MV CA 2003 · Look up ↗
N12WZ DE 2003 · Look up ↗
N148JM UT 2000 · Look up ↗
N159DM NV 2000 · Look up ↗
N1888E NY 1999 · Look up ↗
N189GT OH 2001 · Look up ↗
N1903S TX 1999 · Look up ↗
N190AV CA — · Look up ↗
N20FQ FL 1986 · Look up ↗
N20FR ID — · Look up ↗
N20FZ CA 1986 · Look up ↗
N20GF CA 1987 ● Look up ↗
N20KM MA 1985 · Look up ↗
N20LU WA — · Look up ↗
N20LV NM 1986 · Look up ↗
N20NB TX — · Look up ↗
N20NC TX — · Look up ↗
N20ND CA — · Look up ↗
N219SD CA 2001 · Look up ↗
N228G GA — · Look up ↗
N241GT MS — · Look up ↗
N245LC AZ 2001 · Look up ↗
N2522D OH — · Look up ↗
N290DY IL 2002 · Look up ↗
N291GT CA 2001 · Look up ↗
N3056R OH — · Look up ↗
N377C WY 2005 · Look up ↗
N388JG CT 2000 · Look up ↗
N397TB DC 1997 · Look up ↗
N421TB OH 2002 · Look up ↗
N42TG GA — · Look up ↗
N456TB TX 1999 · Look up ↗
N54TW — — · Look up ↗
N678TB CA — · Look up ↗
N68JT NV 1989 · Look up ↗
N691SC FL — · Look up ↗
N703TB OK 2000 · Look up ↗
N705TB OK 2005 · Look up ↗
N709AM WY 2001 · Look up ↗
N711LY WY 2003 · Look up ↗
N713TB SD 2002 · Look up ↗
N725TB OK 2003 · Look up ↗
N726TB MT 2002 · Look up ↗
N789TB MN 1999 ● Look up ↗
N824GT OK 2000 · Look up ↗
N913DJ ID — · Look up ↗
N92GT MD 2002 · Look up ↗
N967WM AZ 1990 ● Look up ↗
N97GT NJ — · Look up ↗
N9934P WY 1990 · Look up ↗

Source — FAA Aircraft Registry

Sources