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

SA20PC

One Only STC SN 282-88, N88: Installation of Solid State Inverters, Replacement of UHF, ADF, and VHF Systems, and Installation of dual Sierra-King TACAN Systems. Held by Aircraft Management Br. Afs Division FAA Pacific-Asia Region, which holds 5 approved modifications in all. Last revised April 4, 1977. System: other and general.

What it applies to

Kind of product
Aircraft
Design holder
Sabreliner Corporation
Models
NA-265-40
Type certificate
A2WE
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 20, 2026.