SA1971WE
Installation of Model ARB-3 Automatic Downed Aircraft Marker('ADAM'). Held by Burton Instrumentation, INC. Last revised November 21, 1969. System: other and general.
What it applies to
- Kind of product
- Aircraft
- Design holder
- The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The New Piper Aircraft Inc.; Twin Commander Aircraft Corporation
- Models
- 185, 180, 170B, PA-28-160, 500-B
- Type certificates
- 3A24, 5A6, A-799, 2A13, 6A1
- On this site
- Cessna 170 2,085 registered
Cessna 180 Skywagon 2,605 registered
Cessna 185 Skywagon 227 registered
Cessna 500 Citation I 62 registered
Piper PA-28 Cherokee, Warrior, Archer and Arrow 18,636 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 20, 2026.