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

SA753EA

Installation of dual ARC 21A ADF's, and ARC 131B VHF's and one SA14RA HF avionics equipment. Held by Pc6-Au23 Spares LLC, which holds 36 approved modifications in all. Last revised October 25, 2023. System: instruments and avionics.

What it applies to

Kind of product
Aircraft
Design holder
Pilatus Aircraft Limited; Pilatus Aircraft Limited; Pilatus Aircraft Limited
Models
PC-6/B-H2, PC-6/B1-H2, PC-6/C-H2
Type certificates
7A15, 7A15, 7A15
On this site
Pilatus PC-6 22 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 19, 2026.