The U.S. aircraft register, updated daily
Models · Martin · Piston twins · data as of October 23, 2026

Martin 404

5 on the U.S. register. Built from 1952 to 1964; half of them date from 1952 or earlier. Wyoming has the most (1). 80% are registered to companies, flight schools, clubs and other organisations; the rest to individuals, who are not named here at this time.

About the 404 from the FAA's model table

Type
Fixed-wing, multi-engine · Piston twins
Power
Piston (reciprocating), 2 engines
Common engines
P & W R-2800 Series (4), Ama/Expr Unknown Eng (1)
Seats
52
Cruise speed
about 210 mph
Built of
aluminium
Maker on the register
Martin
Registered
earliest certificate August 7, 1991; newest September 27, 2025

Who owns them registrant type

By owner type, as a table
aircraftshare
Corporation480%
Individual120%

Versions as the FAA records them · click one to list only those aircraft

VersionRegisteredBuiltShare
40451952 to 1964100.0%

When they were built by decade · 1 with no year on file

By decade built, as a table
aircraft
19503
19601

Registrations by year certificates issued since 2010, including changes of owner · 2026 is the year so far

Registrations by year, as a table
aircraft
20161
20231
20251

Registration status

By status, as a table
aircraftshare
Valid5100%

Airworthiness certificate class

By airworthiness certificate, as a table
aircraftshare
Standard5100%

Biggest operators companies, schools and clubs

Save A Connie INC1Mid Atlantic Air Museum1Glenn L Martin Aviation Museum INC1404 Foundntion INC1
Largest fleets, as a table
aircraft
Save A Connie INC1
Mid Atlantic Air Museum1
Glenn L Martin Aviation Museum INC1
404 Foundntion INC1

Fleet pages: Mid Atlantic Air Museum

Accident history NTSB records · 1 cases since 1982, 0 fatal

1982-05-15LAX82FA174 · 404 N40445 · accident near Madera, CA · no injuries

The 1 most recent of 1 cases where the NTSB's make and model match this family's versions. Each aircraft's own page also shows its record. How this model compares with others, with the fleet taken into account: Accidents by model in Aviation Analytics.

Questions people ask answers refresh every morning

How many Martin 404 aircraft are registered in the U.S.?

5 as of October 23, 2026, counting 1 version the FAA records separately.

Which state has the most Martin 404s?

Wyoming, with 1.

Who owns the Martin 404?

80% are registered to companies, flight schools, clubs and other organisations; the rest to individuals and co-owners, who are not named on this site at this time.

When were the Martin 404s on the register built?

Between 1952 and 1964; half of them in 1952 or earlier.

How many Martin 404 accidents has the NTSB recorded?

1 accidents and incidents since 1982, 0 of them fatal. A model flown more shows more; the accident analytics compare models per thousand registered.

What is the Martin 404 made of?

The airframe is aluminium: sheet metal over a riveted frame, the way most aircraft have been built since the 1940s. The FAA's type certificate data sheet is the authority for any one model.

What the FAA has certified, ordered and been told about the Martin 404 the component layer

The airframe is aluminium: sheet metal over a riveted frame, the way most aircraft have been built since the 1940s. The design is held under 1 type certificate (1A7, held by Martin-Marietta Corporation). The FAA has issued 21 airworthiness directives (orders that owners must comply with) that name this model, most of them about landing gear. 49 approved modifications exist for it, the most by Piedmont Aviation INC.

FAA orders 21 airworthiness directives · newest first

1977-08-3077-17-12 · Wing Spar Chord Splice Joints · airframe structure
1971-05-0471-09-06 · Cracks In Main Gear Gland Nut · landing gear
1967-06-2067-19-04 · Engine Mount · engine
1967-04-2867-14-06 · Wing Inspection · airframe structure
1966-08-1966-19-03 · Landing Gear Cylinder Strut · engine
1966-04-1066-08-04 · Nose Landing Gear · landing gear

All orders naming the Martin 404

By system

Orders by system, as a table
ordersshare
Landing gear629%
Engine524%
Other and general419%
Airframe structure314%
Propeller210%
Flight controls15%

Approved replacement parts 16 parts manufacturer approvals

Parts a company other than the maker may make for this design and sell as FAA-approved. The companies holding the most:

Most often: diaphragm (6), mount (3), radome ant (2), radome rca (1), cup (1), cone (1).

Approved modifications 49 supplemental type certificates

Changes the FAA has approved for this design, from new avionics and engines to floats and parachutes. The companies holding the most:

Latest

2014-03-07SA3-402 · Floor modification, swivel seat installation and divan seat belt installation
2014-03-07SA3-403 · Installation of Bendix RDR-1 weather radar system, radome and relocation of airspeed pitot.
2014-03-07SA3-404 · Installation of Sperry SP20 autopilot.
2014-03-07SA3-405 · Installation of APU.
2014-03-07SA3-418 · Installation of cockpit and general cabin arrangement and furnishings.

Certificates and bulletins

1A7Type certificate held by Martin-Marietta Corporation · 1 model listed · revised June 1, 1978

Sources: the FAA's type certificate data sheets, airworthiness directives, supplemental type certificates, special conditions and special airworthiness information bulletins (Dynamic Regulatory System), and the FAA's service difficulty reports. A failure report is what an operator or repair station chose to file; the counts show reporting as much as reliability, and larger and commercial fleets report more. How the systems are grouped.

Connections how the 404 links to the rest of the register

Design
Engines
Where they are
Biggest operators
Record
Airworthiness

The whole map of how records connect · these connections as data: /graph/model/martin/404.json.

Aircraft newest certificates first · 5

Tail no.Maker and modelOwner and baseCertificateRegisteredStatus
N636X Martin
404
404 Foundntion INC
Camarillo, California
Standard 2025-09-27 ValidFAA registration status code V: Valid registration. All codes
N461M Martin
404
Individual owner
Wyoming
Standard 2023-05-24 ValidFAA registration status code V: Valid registration. All codes
N145S Martin
404
Save A Connie INC
Kansas City, Missouri
Standard 2016-06-15 ValidFAA registration status code V: Valid registration. All codes
N259S Martin
404
Glenn L Martin Aviation Museum INC
Middle River, Maryland
Standard 2001-05-14 ValidFAA registration status code V: Valid registration. All codes
N450A Martin
404
Mid Atlantic Air Museum
Reading, Pennsylvania
Standard 1991-08-07 ValidFAA registration status code V: Valid registration. All codes