SA2440SW
Installation of airstair door saver. Held by Bcn Aerospace INC.. Last revised March 5, 2012. System: airframe structure.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.
- Models
- 340A, 340, 441, 421A, 414, 421C, 421B, 421, 402, 401, PA-31, PA-31-350, PA-31-325, PA-31-300
- Type certificates
- 3A25, 3A25, A28CE, A7CE, A7CE, A7CE, A7CE, A7CE, A7CE, A7CE, A20SO, A20SO, A20SO, A20SO
- On this site
- Cessna 340 707 registered
Cessna 401 51 registered
Cessna 402 174 registered
Cessna 414 Chancellor 605 registered
Cessna 421 Golden Eagle 769 registered
Cessna 441 Conquest II 172 registered
Piper PA-31 Navajo and Chieftain 935 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.