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

SA135EA

Installation of engine exhaust combustion monitor. Held by Rosemount Engineering CO, which holds 14 approved modifications in all. Last revised February 14, 1972. System: engine.

What it applies to

Kind of product
Aircraft
Design holder
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; 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; 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; 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; The Cessna Aircraft Company; The Cessna Aircraft Company; Mooney Aircraft Corporation; Mooney Aircraft Corporation; Mooney Aircraft Corporation; Mooney Aircraft Corporation; Mooney Aircraft Corporation; 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.; 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.; 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; 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; 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; Twin Commander Aircraft Corporation
Models
310G, 310C, 310D, 310F, 310H, 310E (USAF U-3B), 172D, 172C, 172B, 172A, 172, 182D, 182E, 182C, 182B, 182A, 182, 210-5 (205), 210C, 210B, 210A, 210, 185C, 185B, 185A, 185, 185D, 180B, 180D, 180A, 180, 180F, 180E, 180C, M20C, M20D, M20B, M20A, M20, PA-23, PA-23-160, PA-23-235, PA-23-250, PA-24-400, PA-24, PA-24-250, PA-28-180, PA-28-160, PA-28-150, PA-30, S35, P35, N35, K35, J35, H35, 35-B33, 35-A33, 35-33, M35, 95-A55, 95-55, D95A, B95A, B95, 95, 65-80, 65 (L-23F), D18S, TC-45H, C-45H, TC-45G, C-45G, G18S, UC-45J (SNB-5), E18S, E18S-9700, 35, G35, C35, F35, D35, B35, A35, E35, A23, 23,...
Type certificates
3A10, 3A10, 3A10, 3A10, 3A10, 3A10, 3A12, 3A12, 3A12, 3A12, 3A12, 3A13, 3A13, 3A13, 3A13, 3A13, 3A13, 3A21, 3A21, 3A21, 3A21, 3A21, 3A24, 3A24, 3A24, 3A24, 3A24, 5A6, 5A6, 5A6, 5A6, 5A6, 5A6, 5A6, 2A3, 2A3, 2A3, 2A3, 2A3, 1A10, 1A10, 1A10, 1A10, 1A15, 1A15, 1A15, 2A13, 2A13, 2A13, A1EA, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A16, 3A16, 3A16, 3A16, 3A16, 3A16, 3A20, 3A20, A-765, A-765, A-765, A-765, A-765, A-765, A-765, A-765, A-765, A-777, A-777, A-777, A-777, A-777, A-777, A-777, A-777, A1CE, A1CE, 2A4, 2A4, 6A1, 6A1
On this site
Aero Commander 680 51 registered
Beechcraft 35 Bonanza and Debonair 1,078 registered
Beechcraft 65 201 registered
Beechcraft 95 Travel Air and Baron 55 1,245 registered
Beechcraft E18 58 registered
Beechcraft TC-45 7 registered
Beechcraft UC-45 9 registered
Cessna 172 Skyhawk 20,670 registered
Cessna 180 Skywagon 2,606 registered
Cessna 182 Skylane 11,828 registered
Cessna 185 Skywagon 227 registered
Cessna 210 Centurion 1,527 registered
Cessna 310 1,410 registered
Cessna 500 Citation I 63 registered
Cessna 560 Citation V, Ultra, Encore and Excel 1,343 registered
Piper PA-23 Apache and Aztec 1,316 registered
Piper PA-24 Comanche 2,428 registered
Piper PA-28 Cherokee, Warrior, Archer and Arrow 18,633 registered
Piper PA-30 Twin Comanche 879 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 8, 2026.