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Type Record · As of May 3, 2026

BOEING 1A

Fixed Wing Single Engine · LYCOMING GO-435

Registered

1

Year Range

1966–1966

NTSB Events

0

Airworthiness Directives

40

01 /  Distribution

Where the fleet lives and was built

Counts of currently-registered BOEING 1A aircraft by US state and decade of manufacture, sourced from the FAA Aircraft Registry.

By State (top 10)

  • WA 100.0% 1

By Decade of Manufacture

  • 1960s 100.0% 1

02 /  NTSB Records

Events involving BOEING 1A aircraft

No NTSB-recorded events match BOEING 1A in the indexed corpus.

02c /  Academic Research

Scholarly work mentioning BOEING 1A

Papers and reports across NASA, NTSB, FAA CAMI, AOPA ASI, Embry-Riddle, arXiv, and the broader academic graph that mention this airframe. Title or keyword match — drill into each for full abstract + author list + PDF link.

Browse the full corpus — academia portal ↗

03 /  Airworthiness Directives

FAA directives applicable to BOEING 1A

40 directive(s) on file. Showing the most recent 25 · 15 more in the Federal Register.

  • Nov 18, 2025

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA proposes to supersede Airworthiness Directive (AD) 2017-19-26, which applies to certain The Boeing Company Model 737-600, -700, -700C, -800, and -900 series airplanes. AD 2017-19-26 requires repetitive inspections for cracks along the chem-milled steps of the fuselage skin and missing or loose fasteners in the…

  • Mar 4, 2025

    Airworthiness Directives; CFM International, S.A. Engines

    The FAA is adopting a new airworthiness directive (AD) for certain CFM International, S.A. (CFM) Model LEAP-1A, LEAP-1B, and LEAP- 1C engines. This AD was prompted by a manufacturer investigation that revealed a quality escape for low-pressure turbine (LPT) disks made from forgings with nonconforming grain size. This…

  • Nov 7, 2024

    Airworthiness Directives; Safran Aerosystems (Formerly AVOX Systems Inc.; Scott Aviation) Oxygen Cylinder and Valve Assemblies, and Oxygen Valve Assemblies

    The FAA is correcting an airworthiness directive (AD) that was published in the Federal Register. That AD applies to certain Safran Aerosystems oxygen cylinder and valve assemblies, and oxygen valve assemblies, installed on but not limited to various transport airplanes. As published, the AD number of the AD being rem…

  • Oct 22, 2024

    Airworthiness Directives; Safran Aerosystems (Formerly AVOX Systems Inc.; Scott Aviation) Oxygen Cylinder and Valve Assemblies, and Oxygen Valve Assemblies

    The FAA is superseding Airworthiness Directive (AD) 2023-13- 11, which applied to certain AVOX Systems Inc. (formerly Scott Aviation) oxygen cylinder and valve assemblies, and oxygen valve assemblies, installed on but not limited to various transport airplanes. AD 2023-13-11 required inspecting the oxygen valve assemb…

  • Jun 14, 2024

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA is adopting a new airworthiness directive (AD) for all The Boeing Company Model 757 airplanes. This AD was prompted by potential cracks starting in hidden areas underneath the scuff plates in the fuselage skin and bear strap of certain doors. This AD requires a general visual inspection or a maintenance record…

  • Apr 29, 2024

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA is revising a notice of proposed rulemaking (NPRM) that applied to certain The Boeing Company Model 757-200, -200CB, and - 200PF series airplanes. This action revises the NPRM by adding airplanes to the applicability. The FAA is proposing this airworthiness directive (AD) to address the unsafe condition on the…

  • Apr 22, 2024

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA is revising a notice of proposed rulemaking NPRM that would have applied to certain The Boeing Company Model 757-200, -200CB, and -200PF series airplanes. This action revises the NPRM by revising the compliance times for certain airplanes. The FAA is proposing this airworthiness directive (AD) to address the u…

  • Mar 25, 2024

    Airworthiness Directives; AVOX Systems Inc. (Formerly Scott Aviation) Oxygen Cylinder and Valve Assemblies; and Oxygen Valve Assemblies

    The FAA proposes to supersede Airworthiness Directive (AD) 2023-13-11, which applies to certain AVOX Systems Inc. (formerly Scott Aviation) oxygen cylinder and valve assemblies; and oxygen valve assemblies; installed on but not limited to various transport airplanes. AD 2023-13-11 requires an inspection of the oxygen…

  • Aug 1, 2023

    Airworthiness Directives; AVOX Systems Inc. (Formerly Scott Aviation) Oxygen Cylinder and Valve Assemblies; and Oxygen Valve Assemblies

    The FAA is superseding Airworthiness Directive (AD) 2022-04- 09, which applied to certain AVOX Systems Inc. (formerly Scott Aviation) oxygen cylinder and valve assemblies; and oxygen valve assemblies; installed on but not limited to various transport airplanes. AD 2022-04-09 required an inspection of the oxygen valve…

  • Jan 27, 2023

    Airworthiness Directives; AVOX System Inc. (formerly Scott Aviation) Oxygen Cylinder and Valve Assemblies; and Oxygen Valve Assemblies

    The FAA proposes to supersede Airworthiness Directive (AD) 2022-04-09, which applies to certain AVOX System Inc. (formerly Scott Aviation) oxygen cylinder and valve assemblies; and oxygen valve assemblies; installed on but not limited to various transport airplanes. AD 2022-04-09 requires an inspection of the oxygen v…

  • Mar 7, 2022

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA is adopting a new airworthiness directive (AD) for certain The Boeing Company Model 787-8, 787-9, and 787-10 airplanes. This AD was prompted by significant changes, including new or more restrictive requirements, made to the airworthiness limitations (AWLs) related to fuel tank ignition prevention and the nitr…

  • Feb 28, 2022

    Airworthiness Directives; AVOX System Inc. (Formerly Scott Aviation) Oxygen Cylinder and Valve Assemblies and Oxygen Valve Assemblies

    The FAA is adopting a new airworthiness directive (AD) for certain AVOX System Inc. (formerly Scott Aviation) oxygen cylinder and valve assemblies, and oxygen valve assemblies, installed on but not limited to various transport airplanes. This AD was prompted by reports of cylinder and valve assemblies having oxygen le…

  • Feb 14, 2022

    Airworthiness Directives; Various Airplanes

    The FAA is adopting a new airworthiness directive (AD) for various airplanes modified with certain configurations of Garmin G3X Touch Electronic Flight Instrument System installed per Supplemental Type Certificate (STC) No. SA01899WI or Garmin GI 275 Multi-Function Display (MFD) installed per STC No. SA02658SE. This A…

  • Oct 6, 2021

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA proposes to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 787-8, 787-9, and 787-10 airplanes. This proposed AD was prompted by significant changes, including new or more restrictive requirements, made to the airworthiness limitations (AWLs) related to fuel tank ignition preventi…

  • Aug 17, 2020

    Airworthiness Directives; Aspen Avionics, Inc.

    The FAA is correcting an airworthiness directive (AD) that published in the Federal Register. The AD applies to certain Aspen Avionics, Inc., Evolution Flight Display (EFD) EFD1000 Emergency Backup Display, EFD1000 Multi-Function Display, and EFD1000 Primary Flight Display systems installed on various airplanes. As pu…

  • Jul 31, 2020

    Airworthiness Directives; Aspen Avionics, Inc.

    The FAA is adopting a new airworthiness directive (AD) for certain Aspen Avionics, Inc., Evolution Flight Display (EFD) EFD1000 Emergency Backup Display, EFD1000 Multi-Function Display, and EFD1000 Primary Flight Display systems installed on various airplanes. This AD imposes operating restrictions on these display sy…

  • May 1, 2020

    Airworthiness Directives; AVOX System Inc. (formerly Scott Aviation) Oxygen Cylinder and Valve Assemblies; and Oxygen Valve Assemblies

    The FAA proposes to adopt a new airworthiness directive (AD) for certain AVOX System Inc. (formerly Scott Aviation) oxygen cylinder and valve assemblies; and oxygen valve assemblies; installed on but not limited to various transport airplanes. This proposed AD was prompted by reports of cylinder and valve assemblies h…

  • Jan 23, 2019

    Airworthiness Directives; Aspen Avionics, Inc., Evolution Flight Display Units

    We are adopting a new airworthiness directive (AD) for certain Aspen Avionics, Inc. (Aspen), Evolution Flight Display (EFD) EFD1000 Primary Flight Display (PFD), EFD1000 Multi-Function Display (MFD), EFD1000 Emergency Backup Display (EBD), and EFD500 MFD units installed on various aircraft. This AD requires disabling…

  • Sep 25, 2017

    Airworthiness Directives; The Boeing Company Airplanes

    We are superseding Airworthiness Directive (AD) 2008-12-04, which applied to certain The Boeing Company Model 737-600, -700, -700C, -800, and -900 series airplanes. AD 2008-12-04 required various repetitive inspections to detect cracks along the chem-milled steps of the fuselage skin, and to detect missing or loose fa…

  • Nov 22, 2016

    Airworthiness Directives; The Boeing Company Airplanes

    We propose to supersede Airworthiness Directive (AD) 2008-12- 04, which applies to certain Boeing Model 737-600, -700, -700C, -800, and -900 series airplanes. AD 2008-12-04 currently requires various repetitive inspections to detect cracks along the chem-milled steps of the fuselage skin, and to detect missing or loos…

  • Feb 23, 2015

    Airworthiness Directives; the Boeing Company Airplanes

    We are revising an earlier proposed airworthiness directive (AD) for certain The Boeing Company Model 757 airplanes. The NPRM proposed to require modifying the fuel quantity indication system (FQIS) wiring or fuel tank systems to prevent development of an ignition source inside the center fuel tank. The NPRM was promp…

  • Aug 25, 2014

    Airworthiness Directives; Honeywell ASCa Inc. Emergency Locator Transmitters Installed on Various Transport Category Airplanes

    We are superseding Airworthiness Directive (AD) 2013-18-09 for certain Honeywell ASCa Inc. emergency locator transmitters (ELTs) installed on various transport category airplanes. AD 2013-18-09 required various one-time general visual inspections of the ELT transmitter units (TUs), and corrective actions if necessary.…

  • Aug 1, 2014

    Airworthiness Directives; The Boeing Company Airplanes

    We are superseding Airworthiness Directive (AD) 2003-18-10 for certain The Boeing Company Model 767 airplanes. AD 2003-18-10 required revising the Airworthiness Limitations Section of the maintenance planning data (MPD) document. This new AD also requires revising the maintenance program to incorporate an additional l…

  • Oct 3, 2013

    Airworthiness Directives; The Boeing Company Airplanes

    We are adopting a new airworthiness directive (AD) for certain The Boeing Company Model 737-600, -700, -700C, -800, -900, and -900ER series airplanes. This AD was prompted by a new revision to the airworthiness limitations of the maintenance planning data (MPD) document. This AD requires revising the maintenance progr…

  • Sep 18, 2013

    Airworthiness Directives; Honeywell ASCa Inc. Emergency Locator Transmitters Installed on Various Transport Category Airplanes

    We are adopting a new airworthiness directive (AD) for certain Honeywell ASCa Inc. emergency locator transmitters (ELTs) installed on various transport category airplanes. This AD requires various one-time general visual inspections of the ELT transmitter units (TUs), and corrective actions if necessary. This AD was p…

05 /  Aircraft of this type

All 1 registered N-numbers

Every tail currently on the FAA registry for this make/model. Click an N-number to query the FAA Aircraft Inquiry; rows flagged have NTSB events on file. Tails seeded with full TallyAero pages link directly.

1 of 1
N-number St Year NTSB FAA
N1916L WA 1966 · Look up ↗

Source — FAA Aircraft Registry · click "Look up" to query the live registry record (owner, address, last airworthiness)

05 /  Sources & Methodology

Every count traces back to a primary US-government source

We render counts and lists as the agency publishes them. Read the methodology →