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AIR TRACTOR INC AT-401B

17 registered · 1994–2001 · 5 NTSB events · 24 ADs

About this data

Fixed Wing Single Engine · P&W R1340 SERIES · as of Sep 21, 2026

Resources Manufacturer · Air Tractor ↗ Engine · Pratt & Whitney Canada ↗ Search FAA TCDS ↗

Distribution · currently registered

By state (top 10)

  • MN 11.8% 2
  • KS 11.8% 2
  • SD 5.9% 1
  • NE 5.9% 1
  • ND 5.9% 1
  • NM 5.9% 1
  • IA 5.9% 1
  • OK 5.9% 1
  • MO 5.9% 1
  • TX 5.9% 1

+5 more states

By decade of manufacture

  • 1990s 76.5% 13
  • 2000s 5.9% 1
  • Unknown 17.6% 3

NTSB records

5 event(s) on file. Showing the most recent 5.

Airworthiness directives

24 directive(s) on file. Showing the most recent 24.

  • Mar 25, 2021

    Airworthiness Directives; Air Tractor, Inc., Airplanes

    The FAA is adopting a new airworthiness directive (AD) for all Air Tractor, Inc., (Air Tractor) Models AT-250, AT-300, AT-301, AT-302, AT-400, AT-400A, AT-401, AT-401A, AT-401B, AT-402, AT-402A, AT-402B, AT-501, AT-502, AT-502A, AT-502B, AT-503, AT-503A, AT-504, AT-602, AT- 802, and AT-802A airplanes. This AD was prom…

  • Jul 28, 2020

    Airworthiness Directives; Air Tractor, Inc. Airplanes

    The FAA proposes to adopt a new airworthiness directive (AD) for all Air Tractor, Inc. (Air Tractor) Models AT-250, AT-300, AT-301, AT-302, AT-400, AT-400A, AT-401, AT-401A, AT-401B, AT-402, AT-402A, AT- 402B, AT-501, AT-502, AT-502A, AT-502B, AT-503, AT-503A, AT-504, AT- 602, AT-802, and AT-802A airplanes. This propo…

  • Mar 31, 2009

    Airworthiness Directives; Air Tractor, Inc. Models AT-400, AT-401, AT-401B, AT-402, AT-402A, and AT-402B Airplanes

    We are adopting a new airworthiness directive (AD) to revise AD 2006-08-08, which applies to certain Air Tractor, Inc. (Air Tractor) Models AT-400, AT-401, AT-401B, AT-402, AT-402A, and AT-402B airplanes. AD 2006-08-08 currently requires you to repetitively eddy current inspect the wing lower spar cap in order to reac…

  • Dec 24, 2008

    Airworthiness Directives; Air Tractor, Inc. Models AT-200, AT-300, AT-400, AT-500, AT-600, and AT-800 Series Airplanes

    We are adopting a new airworthiness directive (AD) to supersede AD 2008-11-17, which applies to certain Air Tractor, Inc. Models AT-200, AT-300, AT-400, AT-500, AT-600, and AT-800 series airplanes. AD 2008-11-17 currently requires you to install an overturn skid plate kit or a modification to the overturn skid plate a…

  • Dec 10, 2008

    Airworthiness Directives; Air Tractor, Inc., Models AT-400, AT-401, AT-401B, AT-402, AT-402A, and AT-402B Airplanes

    We propose to revise Airworthiness Directive (AD) 2006-08-08, which applies to certain Air Tractor, Inc. (Air Tractor), Models AT- 400, AT-401, AT-401B, AT-402, AT-402A, and AT-402B airplanes. AD 2006- 08-08 currently requires you to repetitively eddy current inspect the wing lower spar cap in order to reach the safe…

  • Oct 23, 2008

    Airworthiness Directives; Air Tractor, Inc. Models AT-200, AT-300, AT-400, AT-500, AT-600, and AT-800 Series Airplanes

    We propose to supersede Airworthiness Directive (AD) 2008-11- 17, which applies to certain Air Tractor, Inc. Models AT-200, AT-300, AT-400, AT-500, AT-600, and AT-800 series airplanes. AD 2008-11-17 currently requires you to install an overturn skid plate kit or a modification to the overturn skid plate already instal…

  • Nov 9, 2006

    Airworthiness Directives; Air Tractor, Inc. Model AT-602 Airplanes

    The FAA adopts a new airworthiness directive (AD) for all Air Tractor, Inc. (Air Tractor) Model AT-602 airplanes. This AD requires you to repetitively inspect (using the eddy current method) the wing center splice joint two outboard fastener holes on both of the wing main spar lower caps for fatigue cracking; repair o…

  • Aug 9, 2006

    Airworthiness Directives; Air Tractor, Inc. Model AT-602 Airplanes

    The FAA proposes to revise an earlier proposed airworthiness directive (AD) that applies to all Air Tractor, Inc. (Air Tractor) Model AT-602 airplanes. The earlier NPRM would have required you to repetitively inspect (using the eddy current method) the wing center splice joint two outboard fastener holes on both of th…

  • Aug 9, 2006

    Airworthiness Directives; Air Tractor, Inc. Models AT-501, AT-502, AT-502A, AT-502B, and AT-503A Airplanes

    The FAA proposes to revise an earlier proposed airworthiness directive (AD) that applies to certain Air Tractor, Inc. (Air Tractor) Models AT-502, AT-502A, AT-502B, and AT-503A airplanes, which proposes to supersede AD 2002-26-05. AD 2002-26-05 lowers the safe life for the wing lower spar caps for Models AT-502, AT-50…

  • May 12, 2006

    Airworthiness Directives; Air Tractor, Inc. Models AT-400; AT-401, AT-401B, AT-402, AT-402A, and AT-402B Airplanes

  • Apr 19, 2006

    Airworthiness Directives; Air Tractor, Inc. Models AT-400; AT-401, AT-401B, AT-402, AT-402A, and AT-402B Airplanes

    The FAA is adopting a new airworthiness directive (AD) for certain Air Tractor, Inc. (Air Tractor) Models AT-400, AT-401, AT-401B, AT-402, AT-402A, and AT-402B airplanes. This AD requires you to lower the safe life for the wing lower spar cap for certain Models AT-402A and AT-402B airplanes and those that incorporate…

  • Apr 19, 2006

    Airworthiness Directives; Air Tractor, Inc. Models AT-802 and AT-802A Airplanes

    The FAA is adopting a new airworthiness directive (AD) for all Air Tractor, Inc. (Air Tractor) Models AT-802 and AT-802A airplanes. This AD requires you to repetitively inspect (using the eddy current method) the two outboard fastener holes in both of the wing main spar lower caps at the center splice joint for cracks…

  • Apr 17, 2006

    Airworthiness Directives; Air Tractor, Inc. Model AT-501 Airplanes

    The FAA is adopting a new airworthiness directive (AD) to revise AD 2002-11-05, which applies to certain Air Tractor, Inc. (Air Tractor) AT-400 series and Models AT-501, AT-802, and AT-802A airplanes. AD 2002-11-05 establishes a safe life for the wing lower spar cap. Since we issued AD 2002-11-05, we have received rep…

  • Jul 30, 2004

    Airworthiness Directives; Air Tractor, Inc. Models AT-401, AT-401B, AT-402, AT-402A, AT-402B, AT-501, AT-502, AT-502A, AT-502B, AT-503A, AT-602, AT-802, and AT-802A Airplanes

    The FAA supersedes Airworthiness Directive (AD) 2002-19-10, which applies to certain Air Tractor, Inc. (Air Tractor) Models AT-402, AT-402A, AT-402B, AT-602, AT-802, and AT-802A airplanes. AD 2002-19-10 currently requires you to repetitively inspect the upper longeron and upper diagonal tube on the left hand side of t…

  • Jun 4, 2004

    Airworthiness Directives; Air Tractor, Inc. Models AT-401, AT-401B, AT-402, AT-402A, AT-402B, AT-501, AT-502, AT-502A, AT-502B, AT-503A, AT-602, AT-802, and AT-802A Airplanes

  • Apr 9, 2004

    Airworthiness Directives; Air Tractor, Inc. Models AT-401, AT-401B, AT-402, AT-402A, AT-402B, AT-501, AT-502, AT-502A, AT-502B, AT-503A, AT-602, AT-802, and AT-802A Airplanes

    The FAA proposes to supersede Airworthiness Directive (AD) 2002-19-10, which applies to certain Air Tractor, Inc. (Air Tractor) Models AT-402, AT-402A, AT-402B, AT-602, AT-802, and AT-802A airplanes. AD 2002-19-10 currently requires you to repetitively inspect the upper longeron and upper diagonal tube on the left han…

  • Apr 3, 2003

    Airworthiness Directives; Air Tractor, Inc. Models AT-300, AT-400, AT-400A, AT-401, AT-401B, AT-402, AT-402A, AT-402B, AT-501, AT-502, and AT-502B Airplanes

    This amendment adopts a new airworthiness directive (AD) that applies to certain Air Tractor, Inc. (Air Tractor) Models AT-300, AT- 400, AT-400A, AT-401, AT-401B, AT-402, AT-402A, AT-402B, AT-501, AT- 502, and AT-502B airplanes. This AD requires you to repetitively inspect the vertical fin front spar fitting for crack…

  • Dec 27, 2002

    Airworthiness Directives; Air Tractor, Inc. Models AT-300, AT-400, AT-400A, AT-401, AT-401B, AT-402, AT-402A, AT-402B, AT-501, AT-502, and AT-502B Airplanes

    This document proposes to adopt a new airworthiness directive (AD) that would apply to certain Air Tractor, Inc. (Air Tractor) Models AT-300, AT-400, AT-400A, AT-401, AT-401B, AT-402, AT-402A, AT-402B, AT- 501, AT-502, and AT-502B airplanes. This proposed AD would require you to repetitively inspect the vertical fin f…

  • May 31, 2002

    Airworthiness Directives; Air Tractor, Inc. Models AT-400, AT-401, AT-401B, AT-402, AT-402A, AT-402B, AT-501, AT-802, and AT-802A Airplanes

    This amendment supersedes Airworthiness Directive (AD) 2001- 10-04 R1, which lowered the safe life for the wing lower spar cap on certain Air Tractor, Inc. (Air Tractor) AT-400, AT-500, and AT-800 series airplanes. AD 2001-10-04 R1 resulted from numerous reports of cracks in the \3/8\-inch bolthole of the wing lower s…

  • Dec 27, 2001

    Airworthiness Directives; Air Tractor, Inc. AT-400, AT-500, and AT-800 Series Airplanes

    This document proposes to supersede Airworthiness Directive (AD) 2001-10-04 R1, which lowered the safe life for the wing lower spar cap on certain Air Tractor, Inc. (Air Tractor) AT-400, AT-500, and AT-800 series airplanes. AD 2001-10-04 R1 resulted from numerous reports of cracks in the \3/8\-inch bolthole of the win…

  • Jun 4, 2001

    Airworthiness Directives; Air Tractor, Inc. AT-400, AT-500, and AT-800 Series Airplanes

    This amendment revises AD 2001-10-04, which concerns certain Air Tractor, Inc. (Air Tractor) AT-400, AT-500, and AT-800 series airplanes. AD 2001-10-04 superseded AD 2000-14-51 and lowers the safe life for the wing lower spar cap on these airplanes. The AD was the result of numerous reports of cracks in the 3/8-inch b…

  • May 16, 2001

    Airworthiness Directives; Air Tractor, Inc. AT-400, AT-500, and AT-800 Series Airplanes

    This amendment supersedes Airworthiness Directive (AD) 2000- 14-51, which requires inspection of the wing lower spar cap for cracks on Air Tractor, Inc. (Air Tractor) Models AT-501, AT-502, and AT-502A airplanes, and modification or replacement of any cracked wing lower spar cap. This AD lowers the safe life for the w…

  • Dec 3, 1998

    Airworthiness Directives; Air Tractor, Inc. AT-300, AT-400, and AT-500 Series Airplanes

    This amendment supersedes Airworthiness Directive (AD) 96-23- 19, which currently requires installing a new flap actuator overtravel stop and a roll pin through the overtravel stop and jack screw on certain Air Tractor, Inc. (Air Tractor) Models AT-300, AT-400, and AT- 500 series airplanes. This AD requires replacing…

  • Jul 21, 1998

    Airworthiness Directives; Air Tractor, Inc. AT-300, AT-400, and AT-500 Series Airplanes

    This document proposes to supersede Airworthiness Directive (AD) 96-23-19, which currently requires installing a new flap actuator overtravel stop and a roll pin through the overtravel stop and jack screw on certain Air Tractor, Inc. (Air Tractor) Models AT-300, AT-400, and AT-500 series airplanes. The proposed AD wou…

SAIBs · 1 on file · advisory, not mandatory

Registered N-numbers · 17

17 of 17 ● 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
N39GJ SD 1997 · Look up ↗
N401NE NE 1994 · Look up ↗
N432DA MN 1997 · Look up ↗
N50013 ND — · Look up ↗
N5006B NM 1996 · Look up ↗
N5028Q KS 1997 ● Look up ↗
N5081W IA 1996 ● Look up ↗
N6000Y KS 1995 · Look up ↗
N6010U OK 1995 · Look up ↗
N60117 MO 1994 · Look up ↗
N6099U TX — · Look up ↗
N6106U CO 1995 ● Look up ↗
N61173 LA 1996 · Look up ↗
N6146W MT — · Look up ↗
N61762 AL 1996 · Look up ↗
N61775 IL 1996 ● Look up ↗
N9071Z MN 2001 ● Look up ↗

Source — FAA Aircraft Registry

Sources