SA1675WE
Installation of exhaust gas temperature monitoring systems EGT-2. Held by K S Avionics, INC, which holds 6 approved modifications in all. Last revised August 28, 1974. System: engine.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Aerostar Aircraft Corporation; Beech Aircraft Corporation; Camair Aircraft Corporation; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; Pilatus Britten-Norman Limited; The New Piper Aircraft Inc.; The New Piper Aircraft Inc.; The New Piper Aircraft Inc.; The New Piper Aircraft Inc.; The New Piper Aircraft Inc.; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Twin Commander Aircraft Corporation; Twin Commander Aircraft Corporation; Twin Commander Aircraft Corporation
- Models
- PA-60-600 (Aerostar 600), D18C-T, 480, 310 Series, 320 Series, 336, 337 Series, 401, 402, 411, 421 Series, BN-2 Series, PA-23, PA-39, PA-30, PA-34 Series, PA-31 Series, 56TC, 55 Series, 65 Series, 50 Series, S18A, 18A, B18S (Army F-2), 18S (Army C-45C), 18 Series, C18S (Army C-45A), C18S (Army UC-45B), 18 Series, C-45 Series, 560F, 680 Series, 560
- Type certificates
- A17WE, 770, 2A2, 3A10, 3A25, A2CE, A6CE, A7CE, A7CE, A7CE, A7CE, A17EU, 1A10, A1EA, A1EA, A7SO, A8EA, 3A16, 3A16, 3A20, 5A4, 630, 630, 710, 710, A-684, A-757, A-757, A-765, A-765, 2A4, 2A4, 6A1
- On this site
- Camair 480 9 registered
Cessna 310 1,410 registered
Cessna 320 137 registered
Cessna 336 35 registered
Cessna 337 Skymaster 370 registered
Cessna 401 51 registered
Cessna 402 174 registered
Cessna 411 10 registered
Cessna 421 Golden Eagle 769 registered
Cessna 560 Citation V, Ultra, Encore and Excel 1,344 registered
Cessna 680 Citation Sovereign and Latitude 697 registered
Pilatus Britten-Norman Ltd. BN-2 13 registered
Piper PA-23 Apache and Aztec 1,316 registered
Piper PA-30 Twin Comanche 879 registered
Piper PA-31 Navajo and Chieftain 935 registered
Piper PA-34 Seneca 996 registered
Piper PA-39 Twin Comanche C/R 82 registered
Piper PA-60 Aerostar 57 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.