Pratt & Whitney JT12A-6
2 aircraft on the U.S. register carry a Pratt & Whitney JT12A-6 engine, rated at about 3,000 pounds of thrust. The Aero Vodochody L-29 is the model most often fitted with it (1 aircraft). The aircraft carrying it were built between 1965 and 1968.
The FAA records engines by code, usually at the level of a series ("O-320 series") rather than the exact variant; this page gathers every FAA code that reads as Pratt & Whitney JT12A-6. FAA spelling: JT12A-6.
Fitted to model families
Where they are owner's state
Kind of aircraft
When the aircraft were built by decade
What the FAA has certified, ordered and been told about the Pratt & Whitney JT12A-6 the component layer
The FAA has issued 3 airworthiness directives (orders that owners must comply with) that name this engine series. Operators and repair shops have filed 1 failure report with the FAA since 1995, 1 of them in the last ten years.
FAA orders 3 airworthiness directives · newest first
Failure reports 1 since · what operators and shops told the FAA
Parts most often reported as the reports name them
Latest reports
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 this engine series links to the rest of the register
- Aero Vodochody L-29 1 with this engine series
- Aerovodochody L-29 1 with this engine series
- FAA orders naming the Pratt & Whitney JT12A-6 3 airworthiness directives
- Failure reports on the Pratt & Whitney JT12A-6 1 reports since 1995
These connections as data: /graph/engine/pratt-whitney-jt12a-6.json · about the eFlight graph.
Aircraft newest certificates first · 2
| Tail no. | Maker and model | Group | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|---|
| N7149X | Aero Vodochody L-29C DELFIN |
Fixed-wing, single engine | Viper Partners LLC New York, New York |
Experimental | 2021-10-15 | ValidFAA registration status code V: Valid registration. All codes |
| N129MM | Aerovodochody L-29 DELFIN |
Fixed-wing, single engine | Hga LLC Henderson, Nevada |
Experimental | 2019-06-06 | ValidFAA registration status code V: Valid registration. All codes |
Source: FAA Civil Aviation Registry, Releasable Aircraft Database (the engine reference table and each aircraft's engine code), October 7, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.