SA21PC
One Only STC, SN 282-87, N87: Installation of Solid State Inverters, Replacement of UHF, ADF, and VHF, and Installation of Dual Sierra-King TACAN. Held by Aircraft Management Br. Afs Division FAA Pacific-Asia Region, which holds 5 approved modifications in all. Last revised May 26, 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.