Type Record · As of May 3, 2026
LOCKHEED 18
Fixed Wing Multi Engine · WRIGHT C9HD SERIES
Registered
2
NTSB Events
0
Airworthiness Directives
35
01 / Distribution
Where the fleet lives and was built
Counts of currently-registered LOCKHEED 18 aircraft by US state and decade of manufacture, sourced from the FAA Aircraft Registry.
By State (top 10)
- AK 100.0% 2
By Decade of Manufacture
- Unknown 100.0% 2
02 / NTSB Records
Events involving LOCKHEED 18 aircraft
No NTSB-recorded events match LOCKHEED 18 in the indexed corpus.
02c / Academic Research
Scholarly work mentioning LOCKHEED 18
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.
- NASA NTRS 2019 · Other - NACA Research Memorandum
Ditching Tests of a 1/18-Scale Model of the Lockheed Constellation Airplane
Tests were made of a 1/18-scale dynamically similar model of the Lockheed Constellation airplane to investigate its ditching characteristics and proper ditching technique.
- NASA NTRS 2019 · Other - NACA Research Memorandum
Ditching Tests of a 1/18-Scale Model of the Lockheed Constellation Airplane with Speedpak Attached
Results of previous model ditching tests of the Lockheed Constellation airplane are reported. Further model tests have been made to determine the probable ditching characteristics and the proper ditch…
- Embry-Riddle Scholarly Commons 2023 · Journal article (JAAER)
Safety in Flight Training - An Analysis of the NTSB Data 2014-2018
There were 7,500 safety events in the NTSB data sets from 2013-2018. These events were analyzed using Chi-square, Cramer’s V, and the odds ratio.
- NASA NTRS 2019 · Conference Paper
Transonic Experimental Observations of Abrupt Wing Stall on an F/A-18E Model (Invited)
A transonic wind tunnel test of an 8% F/A-18E model was conducted in the NASA Langley Research Center (LaRC) 16 ft Transonic Tunnel (16-ft TT) to investigate on-surface flow physics during stall.
- Embry-Riddle Scholarly Commons 2018 · Conference paper
Oliver Wyman 2018 Flight Operations Survey
Oliver Wyman would like to share training-related insights from its inaugural Flight Operations Survey, canvassing leaders from across the aviation industry, including airline flight ops departments, …
- Embry-Riddle Scholarly Commons 2018 · Industry report (AQRR)
Airline Quality Rating 2018
The results of the 28th annual national Airline Quality Rating (AQR). The most comprehensive study of the performance quality of the 12 largest airlines in the United States, the AQR is conducted by r…
Browse the full corpus — academia portal ↗
03 / Airworthiness Directives
FAA directives applicable to LOCKHEED 18
35 directive(s) on file. Showing the most recent 25 · 10 more in the Federal Register.
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May 26, 2023
Airworthiness Directives; Transport and Commuter Category Airplanes
The FAA is superseding Airworthiness Directive (AD) 2021-23- 12, which applied to all transport and commuter category airplanes equipped with a radio (also known as radar) altimeter. AD 2021-23-12 required revising the limitations section of the existing airplane/ aircraft flight manual (AFM) to incorporate limitation…
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May 16, 2023
Airworthiness Directives; Lockheed Martin Corporation/Lockheed Martin Aeronautics Company Airplanes
The FAA is superseding Airworthiness Directive (AD) 2019-18- 09, which applied to all Lockheed Martin Corporation/Lockheed Martin Aeronautics Company Model 382, 382B, 382E, 382F, and 382G airplanes; and Model C-130A, HP-C-130A, EC-130Q, C-130B, and C-130H airplanes. AD 2019-18-09 required a visual inspection of the ce…
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Jan 11, 2023
Airworthiness Directives; Transport and Commuter Category Airplanes
The FAA proposes to supersede Airworthiness Directive 2021-23- 12, which applies to all transport and commuter category airplanes equipped with a radio (also known as radar) altimeter. AD 2021-23-12 requires revising the limitations section of the existing airplane/ aircraft flight manual to incorporate limitations pr…
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Dec 9, 2021
Airworthiness Directives; Transport and Commuter Category Airplanes
The FAA is adopting a new airworthiness directive (AD) for all transport and commuter category airplanes equipped with a radio (also known as radar) altimeter. This AD was prompted by a determination that radio altimeters cannot be relied upon to perform their intended function if they experience interference from wir…
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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…
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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…
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Sep 26, 2019
Airworthiness Directives; Lockheed Martin Corporation/Lockheed Martin Aeronautics Company Airplanes
The FAA is adopting a new airworthiness directive (AD) for all Lockheed Martin Corporation/Lockheed Martin Aeronautics Company Model 382, 382B, 382E, 382F, and 382G airplanes; and Model C-130A, HP-C-130A, EC-130Q, and C-130B airplanes. This AD requires a visual inspection of the center wing upper and lower rainbow fit…
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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…
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May 23, 2018
Airworthiness Directives; Lockheed Martin Corporation/Lockheed Martin Aeronautics Company
We are adopting a new airworthiness directive (AD) for all Lockheed Martin Corporation/Lockheed Martin Aeronautics Company Model 188A and 188C airplanes; and Model P3A, P-3A, and P3B airplanes type certificated under various other type certificate holders. Certain variants of Model 188A and 188C airplanes are known as…
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Nov 20, 2015
Airworthiness Directives; Lockheed Martin Corporation/Lockheed Martin Aeronautics Company Airplanes
We are superseding Airworthiness Directive (AD) 2011-09-04 for all Lockheed Martin Corporation/Lockheed Martin Aeronautics Company Model 382, 382B, 382E, 382F, and 382G airplanes. AD 2011-09-04 required repetitive inspections for damage to the lower surface of the center wing box (CWB), and corrective actions if neces…
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Nov 5, 2015
Airworthiness Directives; Lockheed Martin Corporation/Lockheed Martin Aeronautics Company Airplanes
We are adopting a new airworthiness directive (AD) for certain Lockheed Martin Corporation/Lockheed Martin Aeronautics Company Model 188 series airplanes. This AD was prompted by an evaluation by the design approval holder (DAH) indicating that the circumferential fuselage splice at fuselage-station (FS) 695 is subjec…
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Oct 2, 2015
Airworthiness Directives; Lockheed Martin Corporation/Lockheed Martin Aeronautics Company Airplanes
We are adopting a new airworthiness directive (AD) for certain Lockheed Martin Corporation/Lockheed Martin Aeronautics Company Model 188 series airplanes. This AD was prompted by an evaluation by the design approval holder (DAH) indicating that the upper and lower wing skin planks at the attachment of the main landing…
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Sep 2, 2015
Airworthiness Directives; Lockheed Martin Corporation/Lockheed Martin Aeronautics Company Airplanes
We are adopting a new airworthiness directive (AD) for all Lockheed Martin Corporation/Lockheed Martin Aeronautics Company Model 382, 382B, 382E, 382F, and 382G airplanes. This AD requires replacing the center wing box (CWB) and certain outer wings. This AD was prompted by an evaluation by the design approval holder (…
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Jun 9, 2015
Airworthiness Directives; Lockheed Martin Corporation/Lockheed Martin Aeronautics Company Airplanes
We are superseding Airworthiness Directive (AD) 95-26-11 for all Lockheed Martin Corporation/Lockheed Martin Aeronautics Company Model L-1011 series airplanes. AD 95-26-11 required repetitive inspections to detect cracking of the fittings that attach the aft pressure bulkhead to the fuselage stringers, repetitive insp…
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May 28, 2015
Airworthiness Directives; Lockheed Martin Corporation/Lockheed Martin Aeronautics Company Airplanes
We propose to adopt a new airworthiness directive (AD) for certain Lockheed Martin Corporation/Lockheed Martin Aeronautics Company Model 188 series airplanes. This proposed AD was prompted by an evaluation by the design approval holder (DAH) indicating that a certain circumferential fuselage splice is subject to wides…
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Nov 17, 2014
Airworthiness Directives Lockheed Martin Corporation/Lockheed Martin Aeronautics Company Airplanes
We are revising an earlier proposed airworthiness directive (AD) that proposed to supersede AD 95-26-11, for all Lockheed Martin Corporation/Lockheed Martin Aeronautics Company Model L-1011 series airplanes. AD 95-26-11 currently requires repetitive inspections to detect cracking of the fittings that attach the aft pr…
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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.…
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Jul 1, 2014
Airworthiness Directives; Lockheed Martin Corporation/Lockheed Martin Aeronautics Company Airplanes
We propose to supersede Airworthiness Directive (AD) 2011-09- 04, which applies to all Lockheed Martin Corporation/Lockheed Martin Aeronautics Company Model 382, 382B, 382E, 382F, and 382G airplanes. AD 2011-09-04 currently requires repetitive inspections for any damage of the lower surface of the center wing box, and…
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Apr 14, 2014
Airworthiness Directives; Lockheed Martin Corporation/Lockheed Martin Aeronautics Company Airplanes
We propose to supersede Airworthiness Directive (AD) 95-26-11, which applies to all Lockheed Martin Corporation/Lockheed Martin Aeronautics Company Model L-1011 series airplanes. AD 95-26-11 currently requires inspections to detect cracking of the fittings that attach the aft pressure bulkhead to the fuselage stringer…
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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…
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Aug 27, 2013
Airworthiness Directives; Lockheed Martin Corporation/Lockheed Martin Aeronautics Company Airplanes
We are superseding an airworthiness directive (AD) for all Lockheed Martin Corporation/Lockheed Martin Aeronautics Company Model L-1011 series airplanes. AD 2005-15-01 required repetitive inspections to detect corrosion or fatigue cracking of certain structural elements of the airplane, corrective actions if necessary…
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Jul 17, 2013
Airworthiness Directives; the Boeing Company Airplanes
We propose to adopt a new airworthiness directive (AD) for certain the Boeing Company Model 777-200 series airplanes. This proposed AD was prompted by reports of smoke or flames in the passenger cabin of various transport category airplanes, related to the wiring for the passenger cabin in-flight entertainment (IFE) s…
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May 10, 2013
Airworthiness Directives; the Boeing Company Airplanes
We propose to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 777-200 and -300 series airplanes. This proposed AD was prompted by reports of smoke or flames in the passenger cabin of various transport category airplanes related to the wiring for the passenger cabin in-flight entertainment…
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Oct 16, 2012
Airworthiness Directives; Lockheed Martin Corporation/Lockheed Martin Aeronautics Company Airplanes
We propose to supersede an existing airworthiness directive (AD) that applies to all Lockheed Martin Corporation/Lockheed Martin Aeronautics Company Model L-1011 series airplanes. The existing AD currently requires repetitive inspections to detect corrosion or fatigue cracking of certain structural elements of the air…
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Apr 5, 2012
Airworthiness Directives; Lockheed Martin Corporation/Lockheed Martin Aeronautics Company Airplanes
We are superseding an existing airworthiness directive (AD) for all Lockheed Martin Corporation/Lockheed Martin Aeronautics Company Model L-1011-385-1, L-1011-385-1-14, and L-1011-385-1-15 airplanes. That AD currently requires implementation of a Supplemental Inspection Document (SID) program of structural inspections…
04 / Type Certificate Data Sheets
FAA TCDS for LOCKHEED 18
The TCDS is the legal certification document — weight limits, performance, equipment, AD compliance times, operating limitations. 1 match in the FAA catalog.
- A-723 Historical Rev 23 · 07/23/2012
Lockheed Martin Aeronautics Company
Models: 18
06 / Supplemental Type Certificates
Modifications approved for LOCKHEED 18
202 STCs on file — every FAA-approved modification, alteration, or installation for this aircraft. STOL kits, avionics, fuel systems, floats, engine swaps, you name it.
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02/02/2024
STC SA02658SE (1 OF 2)
Installation of Garmin GI 275 Multi-Function Display System
Garmin International Inc.
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01/03/2023
STC SA1686WE
Installation of Vibration Isolation Products (VIP) engine mount P/Ns VIP 50525-1 and VIP 50545-1 on various aircraft as shown on FAA Approved Model List (AML) No. SA1686WE.
FTG, Inc.
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09/01/2022
STC SA01967WI (2 OF3)
Use of GAMI G100UL High Octane Unleaded Avgas
General Aviation Modifications Inc.
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06/14/2021
STC SA02658SE (1 OF 2)
Installation of Garmin GI 275 Multi-Function Display System
Garmin International Inc
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01/13/2020
STC SA02658SE (1 OF 2)
Installation of Garmin GI 275 Multi-Function Display System
Garmin International Inc
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09/09/2019
STC SA01714WI (1 OF 2)
Installation of a Garmin transponders: (a) GTX 330/330D/33/33D with ADS-B Out functionality; (b) GTX 335/335R/345/345R with ADS-B Out and In functionality; or (c) GTX 335R/345R wit…
Garmin International Inc
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07/16/2019
STC SA01861SE (PAGE 2)
Fabrication and installation of Landing Light Controller
Seaton Engineering Corp.
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07/16/2019
STC SA01800SE (PG 2)
Fabrication and installation of new or replacement of existing instrument panel lights dimmer control.
Seaton Engineering Corp.
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01/22/2018
STC SA2-885
Installation of McMillan Radome nose P/N 7311
Associated Air Center, Inc. - c/o CT Corporation System
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01/22/2018
STC SA2-565
Installation of electronics rack
Associated Air Center, Inc. - c/o CT Corporation System
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11/30/2017
STC SA01933LA-D (1 OF 2)
Installation of Garmin Model 400W / 500W Series GPS-WAAS Navigation System
Garmin International Inc
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07/14/2017
STC SA01800SE (PG 2)
Fabrication and installation of new or replacement of existing instrument panel lights dimmer control.
Seaton Engineering Corp.
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03/06/2017
STC SA00343BO (page 2)
Installation of a single configuration or a dual configuration Avidyne Corporation Integrated Flight Display, Model IFD540 loaded with Release 10.0 software (or later FAA approved …
Avidyne Corporation
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11/30/2016
STC SA00352BO Page 1
Installation of an Avidyne Corporation Mode A/C/S Transponder with ADS-B Out capability, Model AXP340 loaded with Version 3.13 software (or later FAA approved version),
Avidyne Corporation
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07/21/2016
STC SA01714WI (Page 1)
Installation of a Garmin transponders: (a) GTX 330/330D/33/33D with ADS-B Out functionality; (b) GTX 335/335R/345/345R with ADS-B Out and In functionality; or (c) GTX 335R/345R wit…
Garmin International Inc
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03/18/2016
STC SA01714WI (PAGE 1)
Installation of a Garmin transponders: (a) GTX 330/330D/33/33D with ADS-B Out functionality; (b) GTX 335/335R/345/345R with ADS-B Out and In functionality; or (c) GTX 335R/345R wit…
Garmin International Inc
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03/08/2016
STC SA01714WI (Page 1)
Installation of a Garmin transponders: (a) GTX 330/330D/33/33D with ADS-B Out functionality; (b) GTX 335/335R/345/345R with ADS-B Out and In functionality; or (c) GTX 335R/345R wit…
Garmin International Inc
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06/18/2015
STC SA00343BO (page 2)
Installation of a single configuration or a dual configuration Avidyne Corporation Integrated Flight Display, Model IFD540 loaded with Release 10.0 software (or later FAA approved …
Avidyne Corporation
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04/10/2015
STC SA01229SE Page 1
Installation of GNS 480 (CNX80) GPS WAAS Navigator with integrated VHF Navigation and Communication radios
Garmin International Inc
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04/09/2015
STC SA00352BO Page 1
Installation of an Avidyne Corporation Mode A/C/S Transponder with ADS-B Out capability, Model AXP340 loaded with Version 3.13 software (or later FAA approved version),
Avidyne Corporation
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11/20/2014
STC SA01933LA-D Page 1
Installation of Garmin Model 400W / 500W Series GPS-WAAS Navigation System
Garmin International Inc
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07/24/2014
STC SA00343BO (page 2)
Installation of a single configuration or a dual configuration Avidyne Corporation Integrated Flight Display, Model IFD540 loaded with Release 10.0 software (or later FAA approved …
Avidyne Corporation
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03/07/2014
STC SA3-41
Short stack installation - Pratt & Whitney R-1830 or Wright R-1820 engines.
Sabreliner Aviation LLC
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03/07/2014
STC SA3-42
Modification to Janitrol heater air inlet scoop. Installation of Janitrol heater overheat warning system.
Sabreliner Aviation LLC
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03/07/2014
STC SA3-46
Nose heater installation, Stewart-Warner Model 940-B24.
Sabreliner Aviation LLC
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03/07/2014
STC SA3-466
DC-3 exhaust collector ring and short stack installation.
Sabreliner Aviation LLC
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08/27/2013
STC SA01714WI (Page 1)
Installation of a Garmin GTX 330/330D/33/33D with ADS-B Out functionality
Garmin International Inc
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05/01/2013
STC SA01714WI (Page 1)
Installation of a Garmin GTX 330/330D/33/33D with ADS-B Out functionality
Garmin International Inc
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04/01/2013
STC SA01933LA-D Page 1
Installation of Garmin Model 400W / 500W Series GPS-WAAS Navigation System
Garmin International Inc
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10/03/2012
STC SA01692SE (Page 1 OF 2)
Installation of a Garmin GMX 200 Multi-Function Display
Garmin International Inc
+ 172 more STCs on file
04 / Regulations watching this type
Advisory Circulars and Federal Register activity for LOCKHEED 18
Advisory Circulars
ACs whose subject explicitly mentions LOCKHEED or 18.
Recent Federal Register activity
Latest rulemakings touching general operating rules (Part 91) and maintenance rules (Part 43).
- 2026-04-17 Settlement Policy for Small Unmanned Aircraft System (UAS) Cases FR ↗
- 2026-02-10 Normalizing Unmanned Aircraft Systems Beyond Visual Line of Sight Operations; Reopening of Comment Period; Denial of Extension FR ↗
- 2026-02-02 25-Hour Cockpit Voice Recorder (CVR) Requirement, New Aircraft Production FR ↗
- 2026-01-28 Normalizing Unmanned Aircraft Systems Beyond Visual Line of Sight Operations; Reopening of Comment Period FR ↗
- 2026-01-07 Requirements for Interference-Tolerant Radio Altimeter Systems FR ↗
05 / Aircraft of this type
All 2 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.
05 / Sources & Methodology
Every count traces back to a primary US-government source
- 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
We render counts and lists as the agency publishes them. Read the methodology →