# N442D: Lockheed 18 - Status: Valid registration - Airframe: [Lockheed 18](https://openairdocs.org/model/lockheed-18) (registry code 5261602, 17 seats) - Engine: [Wright C9HD series](https://openairdocs.org/engine/wright-c9hd-series) (registry code 67028) - Data sheets: [TCDS A-723](https://openairdocs.org/tcds/A-723) (Lockheed Martin Aeronautics Company) (OpenAirDocs) - Serial number: 2347 - Type: Fixed wing multi engine - Engine type: Reciprocating - Airworthiness: Standard, normal - Airworthiness date: September 19, 1963 - Certificate issued: June 11, 2024 - Expires: June 30, 2031 - Mode S code: A55256 - Registered owner: [Snowy LLC](https://openairdocs.org/faa-owner/SNOWY%20LLC) - Location: [Anchorage, AK](https://openairdocs.org/faa-place/AK/Anchorage) - Owner type: LLC - Owner's area on the map: 62.0437° N, 158.1745° W: Placed by OpenAirDocs at the center of ZIP code 99503, within about 3 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=442D - Page: https://openairdocs.org/aircraft/N442D From the FAA registry file of October 24, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination. The registry lists only the engine series, so ADs for every Wright C9HD model are included. ## ADs that may apply (OpenAirDocs): 24 in force ### Matched by airframe (Lockheed 18) - [AD 2026-13-02](https://openairdocs.org/ad/2026-13-02): Navigation · Airbus Canada Limited Partnership 18, 49-46, 80-A and 555 more. Effective Jul 1, 2026 - [AD 2023-10-02](https://openairdocs.org/ad/2023-10-02): Indicating/Recording System, Navigation · Boeing 18, 23, 35 and 1,060 more. Effective May 26, 2023 - [AD 2005-01-19](https://openairdocs.org/ad/2005-01-19): Mode S transponders · GARMIN International GTX 330D, GTX 330, GTX 33D and 830 more. Effective Feb 23, 2005 - [AD 99-19-08](https://openairdocs.org/ad/99-19-08): AFM - Deicing · Lockheed 14-H, 14-H2, 14-N and 3 more. Effective Dec 27, 1999 - [AD 98-04-32](https://openairdocs.org/ad/98-04-32): AFM - Limitations Section - Icing · Lockheed 14-H, 14-H2, 14-N and 3 more. Effective Mar 25, 1998 - [AD 93-14-12](https://openairdocs.org/ad/93-14-12): Crewmember Protective Breathing Equipment Units · Airbus A300 B2-1A, A300 B2-1C, A300 B2-203 and 201 more. Effective Sep 2, 1993 - [AD 77-10-03](https://openairdocs.org/ad/77-10-03): Fire Resistant Prop Feathering System · Lockheed 18. Effective Jun 16, 1977 - [AD 66-02-01](https://openairdocs.org/ad/66-02-01): Air Conditioners · Beechcraft 56TC, 58, 58A and 39 more. Effective Feb 10, 1966 - [AD 63-21-04](https://openairdocs.org/ad/63-21-04): Elevator Trim Tabs · Air Trading Navy PV-1 and 18. Effective Jan 10, 1964 - [AD 63-03-03](https://openairdocs.org/ad/63-03-03): Main Landing Gear Drag Strut · Lockheed 18. Effective Mar 5, 1963 - [AD 61-22-06](https://openairdocs.org/ad/61-22-06): Elevator Control Mast Castings · Air Trading Army B-34, Navy PV-1 and 18. Effective Nov 21, 1961 - [AD 60-21-02](https://openairdocs.org/ad/60-21-02): Carburetor Preheat Modification · Lockheed 18 - [AD 59-16-02](https://openairdocs.org/ad/59-16-02): Stabilizer Spar · Air Trading Army B-34, Navy PV-1 and 18 - [AD 58-11-03](https://openairdocs.org/ad/58-11-03): Rudder Cable Attachment · Air Trading Navy PV-1 and 18 - [AD 58-11-02](https://openairdocs.org/ad/58-11-02): Landing Gear Drag Strut Yoke · Lockheed 18 - [AD 58-08-03](https://openairdocs.org/ad/58-08-03): CB Fire Extinguisher System · Air Trading Navy PV-1, DC3-G102, DC3-G102A and 13 more - [AD 57-23-01](https://openairdocs.org/ad/57-23-01): Vacuum System Fusible Plug · Lockheed 18 - [AD 52-08-01](https://openairdocs.org/ad/52-08-01): Fuel Tank Seal · Lockheed 18 - [AD 48-42-02](https://openairdocs.org/ad/48-42-02): Fire Prevention Modification · Lockheed 18 - [AD 47-43-11](https://openairdocs.org/ad/47-43-11): Elevator Push-Pull Rod Bolts · Lockheed 18 - [AD 47-43-10](https://openairdocs.org/ad/47-43-10): Fire Extinguisher Bottle Rework · Lockheed 18 - [AD 46-13-03](https://openairdocs.org/ad/46-13-03): Hopper Oil Tanks · Lockheed 18 - [AD 46-13-02](https://openairdocs.org/ad/46-13-02): Dual Fuel System · Lockheed 18 - [AD 46-13-01](https://openairdocs.org/ad/46-13-01): Landing Gear Hose Ferrules · Lockheed 18 ### Matched by engine (Wright C9HD series) None in force. ## Information bulletins (advisory) None matched. ## NTSB investigations None matched to N442D. ## FAA accident and incident reports (1) From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [Incident 19841206069459I](https://openairdocs.org/incident/19841206069459I), Dec 6, 1984: Lkheed 18LKHEED (N442D), Lubbock, TX. During climb out oil noticed on engine cowling. Teflon friction reduction strip loose PN52564949 on prop blade. ## Service difficulty reports None filed for this aircraft. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. ## STCs that may be installed (OpenAirDocs) (177, first 50) Approved for this aircraft's airframe or engine model, in force first, then newest. The registry doesn't record which STCs an aircraft has; its records do. ### Approved for the airframe (Lockheed 18) - [STC SA01800SE](https://openairdocs.org/stc/SA01800SE): Fabrication and installation of new or replacement of existing instrument panel lights dimmer control. TCW Technologies, LLC - [STC SA01861SE](https://openairdocs.org/stc/SA01861SE): Fabrication and installation of Landing Light Controller. TCW Technologies, LLC - [STC SA04652CH](https://openairdocs.org/stc/SA04652CH): To allow use of 100R grade aviation fuel meeting Swift Fuel, LLC specification. Swift Fuels LLC - [STC SA02658SE](https://openairdocs.org/stc/SA02658SE): Installation of Garmin GI 275 Multi-Function Display System. Garmin International Inc - [STC SA1686WE](https://openairdocs.org/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 - [STC SA01967WI](https://openairdocs.org/stc/SA01967WI): Use of GAMI G100UL High Octane Unleaded Avgas. General Aviation Modifications Inc - [STC SA01714WI](https://openairdocs.org/stc/SA01714WI): 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 with ADS-B Out functionality in select airplanes installed with G950/G1000 systems. Garmin International Inc - [STC SA2-565](https://openairdocs.org/stc/SA2-565): Installation of electronics rack. Associated Air Center, Inc. - c/o CT Corporation System - [STC SA2-885](https://openairdocs.org/stc/SA2-885): Installation of McMillan Radome nose P/N 7311. Associated Air Center, Inc. - c/o CT Corporation System - [STC SA01933LA-D](https://openairdocs.org/stc/SA01933LA-D): Installation of Garmin Model 400W / 500W Series GPS-WAAS Navigation System. Garmin International Inc - [STC SA00343BO](https://openairdocs.org/stc/SA00343BO): 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 release). Avidyne Corporation - [STC SA00352BO PAGE 1](https://openairdocs.org/stc/SA00352BO%20PAGE%201): 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 - [STC SA01229SE PAGE 1](https://openairdocs.org/stc/SA01229SE%20PAGE%201): Installation of GNS 480 (CNX80) GPS WAAS Navigator with integrated VHF Navigation and Communication radios. Garmin International Inc - [STC SA01933LA-D PAGE 1](https://openairdocs.org/stc/SA01933LA-D%20PAGE%201): Installation of Garmin Model 400W / 500W Series GPS-WAAS Navigation System. Garmin International Inc - [STC SA3-41](https://openairdocs.org/stc/SA3-41): Short stack installation - Pratt & Whitney R-1830 or Wright R-1820 engines. Sabreliner Aviation LLC - [STC SA3-42](https://openairdocs.org/stc/SA3-42): Modification to Janitrol heater air inlet scoop. Installation of Janitrol heater overheat warning system. Sabreliner Aviation LLC - [STC SA3-46](https://openairdocs.org/stc/SA3-46): Nose heater installation, Stewart-Warner Model 940-B24. Sabreliner Aviation LLC - [STC SA3-466](https://openairdocs.org/stc/SA3-466): DC-3 exhaust collector ring and short stack installation. Sabreliner Aviation LLC - [STC SA01692SE](https://openairdocs.org/stc/SA01692SE): Installation of a Garmin GMX 200 Multi-Function Display. Garmin International Inc - [STC SA02016SE-D](https://openairdocs.org/stc/SA02016SE-D): Installation of Garmin GTS 800, GTS 820 or GTS 850 Traffic System. Garmin International Inc - [STC SA01487SE-D](https://openairdocs.org/stc/SA01487SE-D): Installation of a GDL 69 or GDL 69A XM Satellite Receiver. Garmin International Inc - [STC SA100CE](https://openairdocs.org/stc/SA100CE): Installation of Hoskins Supplemental Model A or B High Intensity Wing Tip Lights, Model C Tail Light, with or without Model 1 or 2 High Intensity Fuselage Lights. BF Goodrich Aerospace - [STC SA2-1582](https://openairdocs.org/stc/SA2-1582): Flap modification removal. Airline Fueling Inc - [STC SA01473SE](https://openairdocs.org/stc/SA01473SE): Installation of a GTX 32 (mode C), GTX 33 (mode S), or GTX 33D (mode S with diversity) Remote Transponde. Garmin AT Inc - [STC SA4005NM](https://openairdocs.org/stc/SA4005NM): Precise Flight Inc. Pulselite Control System. Precise Flight Inc - [STC SA01695SE](https://openairdocs.org/stc/SA01695SE): Installation of an antenna. Garmin AT Inc - [STC SA01487SE](https://openairdocs.org/stc/SA01487SE): Installation of a GDL 69 or GDL 69A XM Satellite Receiver in accordance with Garmin Supplemental Type Certificate Master Data List, P/N 005-C0217-00, Revision A, dated December 20, 2004, or later FAA approved revision. Garmin AT Inc - [STC SA02217AK](https://openairdocs.org/stc/SA02217AK): Installation of Garmin AT Model GDL90 UAT Data Link System, in accordance with Garmin AT, Inc., GDL 90 UAT Master Data List, P/N 560-0278-01, Revision A, dated November 12, 2004, or later FAA approved revision. Garmin AT Inc - [STC SA105SW](https://openairdocs.org/stc/SA105SW): Installation of landing gear doors. Signature Flight Support Corporation - [STC SA106SW](https://openairdocs.org/stc/SA106SW): Installation of Model M-4 autopilot. Signature Flight Support Corporation - [STC SA107SW](https://openairdocs.org/stc/SA107SW): Installation of alcohol deicing system. Signature Flight Support Corporation - [STC SA129SW](https://openairdocs.org/stc/SA129SW): Installation of empennage saddle-back fairing. Signature Flight Support Corporation - [STC SA146SW](https://openairdocs.org/stc/SA146SW): Installation of Lear L5 autopilot. Signature Flight Support Corporation - [STC SA177SW](https://openairdocs.org/stc/SA177SW): Installation of tail cone. Signature Flight Support Corporation - [STC SA17SW](https://openairdocs.org/stc/SA17SW): Installation of electric trim tab servo. Signature Flight Support Corporation - [STC SA181SW](https://openairdocs.org/stc/SA181SW): Installation of oxygen system. Signature Flight Support Corporation - [STC SA183SW](https://openairdocs.org/stc/SA183SW): Installation of air conditioner. Signature Flight Support Corporation - [STC SA187SW](https://openairdocs.org/stc/SA187SW): Firewall fluid shutoff valve installation. Signature Flight Support Corporation - [STC SA188SW](https://openairdocs.org/stc/SA188SW): Installation of Scene-A-Ramic cabin windows. Signature Flight Support Corporation - [STC SA192SW](https://openairdocs.org/stc/SA192SW): Installation of Mighty Midget hydraulic selector (flap and gear). Signature Flight Support Corporation - [STC SA194SW](https://openairdocs.org/stc/SA194SW): Installation of cockpit side windows. Signature Flight Support Corporation - [STC SA2-100](https://openairdocs.org/stc/SA2-100): Installation of electric trim actuator. Signature Flight Support Corporation - [STC SA2-102](https://openairdocs.org/stc/SA2-102): Installation of Emergency Fluid Shut-Off Valves. Signature Flight Support Corporation - [STC SA2-103](https://openairdocs.org/stc/SA2-103): Installation of anti-collision lights. Signature Flight Support Corporation - [STC SA2-105](https://openairdocs.org/stc/SA2-105): Installation of 36-inch length picture windows between Stations 279 and 392. Signature Flight Support Corporation - [STC SA2-1078](https://openairdocs.org/stc/SA2-1078): Installation of flight line nose heater. Signature Flight Support Corporation - [STC SA2-109](https://openairdocs.org/stc/SA2-109): Installation of instrument panel. Signature Flight Support Corporation - [STC SA2-1126](https://openairdocs.org/stc/SA2-1126): Rudder anti-overbalance springs. Signature Flight Support Corporation - [STC SA2-1127](https://openairdocs.org/stc/SA2-1127): Main landing gear and tail gear metering pins modified. Signature Flight Support Corporation - [STC SA2-1128](https://openairdocs.org/stc/SA2-1128): Installation of elevator spring tab, trim tab, nose down spring and elevator bellcrank station 561. Signature Flight Support Corporation All 177: https://openairdocs.org/aircraft/N442D/stcs.md ## Related - Other Lockheed 18 aircraft: https://openairdocs.org/model/lockheed-18/aircraft.md - The Wright C9HD series engine: https://openairdocs.org/engine/wright-c9hd-series.md --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.