The U.S. aircraft register, updated daily
Approved modifications · supplemental type certificate · current · amended

ST01312WI-D

Reduced Vertical Separation Minimum (RVSM) non-group (individual) airworthiness approval of specific Lockheed Martin Model 1329-23 aircraft in accordance with Kohlman Systems Research (KSR) Master Drawing List Jetstar 1329-23, Drawing No. MDL 1009, Rev. OR, dated January 06, 2005, or later FAA approved revision. Held by Kohlman Systems Research INC., which holds 23 approved modifications in all. Last revised February 27, 2006. System: other and general.

What it applies to

Kind of product
Aircraft
Design holder
Lockheed Martin Corporation; Lockheed Martin Corporation; Lockheed Martin Corporation
Models
1329-23A, 1329-23D, 1329-23E
Type certificates
2A15, 2A15, 2A15
On this site
Lockheed 1329 6 registered
The FAA's record
On the FAA's site

What an approved modification is

A supplemental type certificate is the FAA's approval of a change to a certified design: a new engine or propeller, avionics, an autopilot, floats, a parachute, a larger fuel tank, an ice-protection kit. The company holding it may sell the kit and the paperwork to owners of the listed models; the modification then becomes part of that aircraft's record. The FAA's list says what was approved and for which models, not how many aircraft carry it.

Source: FAA supplemental type certificates (Dynamic Regulatory System). Register counts from the FAA register of October 22, 2026.