Type certificate 1E8
Held today by Pratt & Whitney Division, earlier by United Technologies CORP.. It covers 11 models; about 5 aircraft on the U.S. register are built to the designs it names. Last revised June 16, 1989 (revision 18). 20 FAA orders name its designs, and 5 approved modifications build on it.
Models under this certificate 11
JT3D-3, JT3D-3C, JT3D-1A-MC7, JT3D-1-MC6, JT3D-7, JT3D-1-MC7, JT3D-1A, JT3D-3B, JT3D-1A-MC6, JT3D-1, JT3D-7A
Engine series
The data sheet on the FAA's site: the approved engines and propellers, weights, speeds and limits for each model.
FAA orders on these designs 20 · newest first
1999-01-0599-01-08 · Stage 7 through Stage 15 High-Pressure Compressor (HPC) Disks · engine
1997-01-2196-23-10 · Steel High Pressure Compressor (HPC) disk · engine
1989-10-3189-22-07 · Overhaul · engine
1982-07-0182-14-02 · Third Stage Turbine Disks · engine
1980-10-0780-19-03 · Fifth Stage Compressor Disks · engine
1980-07-0180-12-51 R2 · First Stage Fan Blade · engine
1978-08-1078-11-03 · First Stage Fan Blades · engine
1975-02-1975-04-07 · Tenth Stage Compressor Disk · engine
Approved modifications 5 · companies holding the most
Source: FAA type certificate data sheets (Dynamic Regulatory System); register counts from the FAA register of October 7, 2026. Connections as data: /graph/certificate/1E8.json.