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

SA1675CE

Installation of provisions for Daedalus scanner into previously approved camera/flare doors. (MODELS INCORPORATING STC's SA891CE, SA961CE, SA1281CE 0R SA1377CE). Held by Avcon Industries INC, which holds 121 approved modifications in all. Last revised September 21, 1981. System: airframe structure.

What it applies to

Kind of product
Aircraft
Design holder
Bombardier-Rotax GmbH; Douglas Aircraft Co. Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.
Models
DHC-6 Series, Army B-18B (Special), Learjet 36 Series, Learjet 28, Learjet 29, Learjet 60, Learjet 24 Series, Learjet 35 Series, Learjet 31 Series
Type certificates
A9EA, 2-577, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE
On this site
Dehavilland DHC-6 114 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.