SA02547AT (PG 3)
Installation of a Voice Alert System. Held by Aircraft Components INC, which holds 22 approved modifications in all. Last revised January 22, 2016. System: other and general.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Piper Aircraft Inc.; Twin Commander Aircraft Corporation; Twin Commander Aircraft Corporation; Twin Commander Aircraft Corporation; Twin Commander Aircraft Corporation; Twin Commander Aircraft Corporation; Twin Commander Aircraft Corporation; Twin Commander Aircraft Corporation; Twin Commander Aircraft Corporation; Twin Commander Aircraft Corporation; Twin Commander Aircraft Corporation; Twin Commander Aircraft Corporation; Twin Commander Aircraft Corporation; Twin Commander Aircraft Corporation; Twin Commander Aircraft Corporation; Twin Commander Aircraft Corporation; Twin Commander Aircraft Corporation; Twin Commander Aircraft Corporation; Twin Commander Aircraft Corporation; Twin Commander Aircraft Corporation; Twin Commander Aircraft Corporation; Twin Commander Aircraft Corporation; Twin Commander Aircraft Corporation; Twin Commander Aircraft Corporation; Twin Commander Aircraft Corporation; Twin Commander Aircraft Corporation; Twin Commander Aircraft Corporation; Twin Commander Aircraft Corporation; Twin Commander Aircraft Corporation; Sierra Hotel Aero Inc.; Sierra Hotel Aero Inc.; Sierra Hotel Aero Inc.; Sierra Hotel Aero Inc.; Sierra Hotel Aero Inc.; Sierra Hotel Aero Inc.; Sierra Hotel Aero Inc.; Sierra Hotel Aero Inc.; Mitsubishi Heavy Industries Ltd.; Mitsubishi Heavy Industries Ltd.; Mitsubishi Heavy Industries Ltd.; Mitsubishi Heavy Industries Ltd.; Mitsubishi Heavy Industries Ltd.; Mitsubishi Heavy Industries Ltd.; Mitsubishi Heavy Industries Ltd.; Mitsubishi Heavy Industries Ltd.; Mitsubishi Heavy Industries Ltd.; Mitsubishi Heavy Industries Ltd.; Mitsubishi Heavy Industries Ltd.; Mitsubishi Heavy Industries Ltd.; Mitsubishi Heavy Industries Ltd.; Liberty Aerospace Incorporated; Cirrus Design Corporation; Cirrus Design Corporation
- Models
- PA-38-112, 560-F, 680, 680-E, 680-F, 680-FL, 680-T, 680-V, 680-W, 681, 685, 690, 690A, 690B, 690C, 690D, 695, 695A, 695B, 720, 500, 500-A, 500-B, 500-S, 500-U, 520, 560, 560-A, 560-E, Navion A (Army L-17B and L-17C), Navion B, Navion D, Navion E, Navion F, Navion G, Navion H, Navion (Army L-17A), MU-2B-26A, MU-2B-36A, MU-2B-40, MU-2B-60, MU-2B, MU-2B-10, MU-2B-15, MU-2B-20, MU-2B-25, MU-2B-26, MU-2B-30, MU-2B-35, MU-2B-36, XL-2, SR20, SR22
- Type certificates
- A18SO, 2A4, 2A4, 2A4, 2A4, 2A4, 2A4, 2A4, 2A4, 2A4, 2A4, 2A4, 2A4, 2A4, 2A4, 2A4, 2A4, 2A4, 2A4, 2A4, 6A1, 6A1, 6A1, 6A1, 6A1, 6A1, 6A1, 6A1, 6A1, A-782, A-782, A-782, A-782, A-782, A-782, A-782, A-782, A10SW, A10SW, A10SW, A10SW, A2PC, A2PC, A2PC, A2PC, A2PC, A2PC, A2PC, A2PC, A2PC, A00008DE, A00009CH, A00009CH
- On this site
- Aero Commander 500 168 registered
Aero Commander 520 12 registered
Aero Commander 560 23 registered
Aero Commander 680 51 registered
Aero Commander 681 6 registered
Aero Commander 685 8 registered
Aero Commander 690 25 registered
Cirrus SR20 1,629 registered
Cirrus SR22 7,065 registered
Mitsubishi MU-2 177 registered
Navion NAVION D 5 registered
Navion NAVION F 6 registered
Navion NAVION G 61 registered
Navion NAVION H 36 registered
Piper PA-38 Tomahawk 442 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.