Type Record · As of May 3, 2026
TRAVEL AIR 4000
Fixed Wing Single Engine · LYCOMING R680
Registered
26
Year Range
1926–1929
NTSB Events
11
Airworthiness Directives
0
Aircraft Resources
01 / Distribution
Where the fleet lives and was built
Counts of currently-registered TRAVEL AIR 4000 aircraft by US state and decade of manufacture, sourced from the FAA Aircraft Registry.
By State (top 10)
- CA 26.9% 7
- OR 15.4% 4
- WA 7.7% 2
- NY 7.7% 2
- FL 7.7% 2
- MI 3.8% 1
- VA 3.8% 1
- TX 3.8% 1
- WY 3.8% 1
- SC 3.8% 1
+4 more states
By Decade of Manufacture
- 1920s 73.1% 19
- Unknown 26.9% 7
02 / NTSB Records
Events involving TRAVEL AIR 4000 aircraft
11 event(s) on file. Showing the most recent 11.
-
Jun 30, 2018
N8870Shelter Island, New York
NTSB Docket → -
Aug 3, 2001
N5433Morrilton, Arkansas
NTSB Docket → -
Jul 15, 1984
N8719SAN MIGUEL, California Fatal
NTSB Docket → -
Jun 12, 1979
N427WFT LAUDERDALE, Florida Fatal
NTSB Docket → -
Jun 28, 1975
N3979BIDDEFORD, Maine
NTSB Docket → -
May 2, 1974
N5433PHOENIX, Arizona
NTSB Docket → -
Feb 2, 1973
N158VLITTLETON, Colorado Serious
NTSB Docket → -
Mar 2, 1968
N4421GLENDALE, Arizona Serious
NTSB Docket → -
Mar 26, 1967
N158VOKLAHOMA CTY, Oklahoma
NTSB Docket → -
Jul 27, 1966
N158VAMARILLO, Texas
NTSB Docket → -
Mar 30, 1966
N4834ALBANY, Oregon Minor
NTSB Docket →
02c / Academic Research
Scholarly work mentioning TRAVEL AIR 4000
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 · Conference Paper
Turbine bypass engine: A new supersonic cruise propulsion concept
Engine performance and mission studies were carried out for a single-spool Turbine Bypass Engine concept. Comparisons were made between the TBE, a conventional single-spool turbojet, and the Pratt & W…
- NASA NTRS 2019 · Conference Paper
Turbine bypass engine - A new supersonic cruise propulsion concept
Engine performance and mission studies were carried out for a single-spool turbine bypass engine (TBE) concept. Comparisons were made between the TBE, a conventional single-spool turbojet, and the Pra…
- NASA NTRS 2019 · Technical Memorandum (TM)
Investigation of Spiral Bevel Gear Condition Indicator Validation via AC-29-2C Combining Test Rig Damage Progression Data with Fielded Rotorcraft Data
This is the final of three reports published on the results of this project. In the first report, results were presented on nineteen tests performed in the NASA Glenn Spiral Bevel Gear Fatigue Test Ri…
- NASA NTRS 2019 · Reprint (Version printed in journal)
Sunspots and the physics of magnetic flux tubes. VI - Convective propulsion. VII - Heat flow in a convective downdraft
The effect of negative aerodynamic drag in an ideal fluid subject to convective instability is considered. It is shown that a cylinder moving in such a fluid is propelled forward in its motion by the …
Browse the full corpus — academia portal ↗
03 / Airworthiness Directives
FAA directives applicable to TRAVEL AIR 4000
No matching airworthiness directives are on file for this make and model in the Federal Register.
04 / Regulations watching this type
Advisory Circulars and Federal Register activity for TRAVEL AIR 4000
Advisory Circulars
No ACs explicitly mention this type. Showing universal operating-rule ACs that apply to all aircraft.
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 26 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.
| N-number | St | Year | NTSB | FAA |
|---|---|---|---|---|
| N1339 | OR | 1929 | · | Look up ↗ |
| N158V | WA | — | ● | Look up ↗ |
| N31439 | NY | 1929 | · | Look up ↗ |
| N3945 | CA | 1926 | · | Look up ↗ |
| N3979 | FL | 1928 | ● | Look up ↗ |
| N4251N | CA | — | · | Look up ↗ |
| N427W | WA | — | ● | Look up ↗ |
| N4369P | CA | — | · | Look up ↗ |
| N4419 | MI | — | · | Look up ↗ |
| N4421 | CA | 1928 | ● | Look up ↗ |
| N469N | VA | 1929 | · | Look up ↗ |
| N4834 | OR | 1928 | ● | Look up ↗ |
| N501V | TX | 1929 | · | Look up ↗ |
| N510E | CA | — | · | Look up ↗ |
| N5427 | WY | 1928 | · | Look up ↗ |
| N5433 | CA | 1928 | ● | Look up ↗ |
| N6479 | SC | 1928 | · | Look up ↗ |
| N8719 | DE | 1929 | ● | Look up ↗ |
| N8870 | NY | 1929 | ● | Look up ↗ |
| N9021 | PA | 1929 | · | Look up ↗ |
| N9031 | CA | 1929 | · | Look up ↗ |
| N9049 | OR | 1928 | · | Look up ↗ |
| N90539 | MO | 1929 | · | Look up ↗ |
| N9820 | FL | 1929 | · | Look up ↗ |
| N9831 | OR | — | · | Look up ↗ |
| N9908 | WI | 1929 | · | 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
- 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 →