SA00455DE
Installation of a large vertical left hand side window and/or an optional Del Air One Passenger Observation Rear Seat Assembly. Held by Del-Air, which holds 43 approved modifications in all. Last revised July 20, 2001. System: cabin, seats and restraints.
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
- Models
- 210M, 210K, 210L, T210L, 210N, T210N, T210K, T210M
- Type certificates
- 3A21, 3A21, 3A21, 3A21, 3A21, 3A21, 3A21, 3A21
- On this site
- Cessna 210 Centurion 1,526 registered
Cessna T210 Turbo Centurion 1,284 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.