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

SA02678LA

Modification to upgrade the existing Mode S Transponder system by installing the ACSS NXT-600 Transponder with ADS-B Out and optionally install the ACSS NXG-900 GPS as the position source for ADS-B Out. Held by Aviation Communication and Surveillance Systems (Acss) LLC, which holds 40 approved modifications in all. Last revised December 16, 2019. System: instruments and avionics.

What it applies to

Kind of product
Aircraft
Design holder
Aircraft Industries a.s.; Aircraft Industries a.s.; Aircraft Industries a.s.; British Aerospace Regional Aircraft; British Aerospace Regional Aircraft; M7 Aerospace LLC; M7 Aerospace LLC; M7 Aerospace LLC; M7 Aerospace LLC; M7 Aerospace LLC; M7 Aerospace LLC; M7 Aerospace LLC; M7 Aerospace LLC; M7 Aerospace LLC; M7 Aerospace LLC; M7 Aerospace LLC; Pilatus Aircraft Limited; Pilatus Aircraft Limited; Pilatus Aircraft Limited; Pilatus Aircraft Limited; RUAG Aerospace Services GmbH; RUAG Aerospace Services GmbH; RUAG Aerospace Services GmbH; RUAG Aerospace Services GmbH; RUAG Aerospace Services GmbH; RUAG Aerospace Services GmbH; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.
Models
L 410 NG, L 410 UVP-E20, L 410 UVP-E20 CARGO, Jetstream Series 3101, Jetstream 3201, SA227-CC, SA227-DC (C-26B), SA226-AT, SA226-T, SA226-T(B), SA227-AT, SA227-TT, SA226-TC, SA227-AC (C-26A), SA227-BC (C-26A), SA227-PC, PC-12, PC-12/45, PC-12/47, PC-12/47E, Dornier 228-100, Dornier 228-101, Dornier 228-200, Dornier 228-201, Dornier 228-202, Dornier 228-212, 510, 525, 525A, 525B, 525C, 1900C, 1900C (C-12J), 1900D, 200, 200C, 200CT, 200T, 300, 300LW, B200, B200C, B200C (C-12F), B200C (C-12 R), B200C (UC-12F), B200C (UC-12M), B200CGT, B200CT, B200GT, B200T, B300, B300C, B300C (MC-12W), B300C (UC-12W)
Type certificates
A42CE, A42CE, A42CE, A21EU, A56EU, A18SW, A18SW, A5SW, A5SW, A5SW, A5SW, A5SW, A8SW, A8SW, A8SW, A8SW, A78EU, A78EU, A78EU, A78EU, A16EU, A16EU, A16EU, A16EU, A16EU, A16EU, A00014WI, A1WI, A1WI, A1WI, A1WI, A24CE, A24CE, A24CE, A24CE, A24CE, A24CE, A24CE, A24CE, A24CE, A24CE, A24CE, A24CE, A24CE, A24CE, A24CE, A24CE, A24CE, A24CE, A24CE, A24CE, A24CE, A24CE, A24CE
On this site
Beechcraft 1900 Airliner 157 registered
Beechcraft 300 King Air 300 131 registered
Beechcraft B200 King Air B200 718 registered
Beechcraft B300 King Air 350 784 registered
Cessna 510 Citation Mustang 270 registered
Cessna 525 CitationJet (CJ series) 1,969 registered
Dornier DORNIER 228 11 registered
Fairchild SA227 87 registered
Pilatus PC-12 1,441 registered
Swearingen SA227 32 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 7, 2026.