SA362CE
Description of Type Design Change: Install Hoskins Twilighter MK III per Installation Manual and Specification Sheets as amended, dated September 20, 1965. Install Hoskins Twilighter MK IIIB Supplemental Lights per the following required data: Models 310 through 310F and 320 Specification Sheets P/N 65-0025-5 with drawings listed; Models 310G through N and 320-1 through F Specification Sheets P/N 65-0025-6 with drawings listed; Models 401, 401A and 402 Specification Sheets P/N 65-0025-9 with drawing listed; Models 411 and 411A Specification Sheets P/N 65-0025-7 with drawings listed; and Models 421 and 421A Specification Sheets P/N 65-0027-8 with drawings listed. Held by Bf Goodrich Aerospace, which holds 139 approved modifications in all. Last revised September 30, 2011. System: electrical power.
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; 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; 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; Cessna Aircraft Company; Cessna Aircraft Company
- Models
- 310, 310A, 310B, 310C, 310D, 310E, 310F, 310G, 310H, 310I, 310J, 310J-1, 310K, 310L, 310N, E310H, E310J, 320, 320-1, 320A, 320B, 320C, 320D, 320E, 320F, 401, 401A, 402, 411, 411A, 421, 421A
- Type certificates
- 3A10, 3A10, 3A10, 3A10, 3A10, 3A10, 3A10, 3A10, 3A10, 3A10, 3A10, 3A10, 3A10, 3A10, 3A10, 3A10, 3A10, 3A25, 3A25, 3A25, 3A25, 3A25, 3A25, 3A25, 3A25, A7CE, A7CE, A7CE, A7CE, A7CE, A7CE, A7CE
- On this site
- Cessna 310 1,410 registered
Cessna 320 137 registered
Cessna 401 51 registered
Cessna 402 174 registered
Cessna 411 10 registered
Cessna 421 Golden Eagle 769 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 21, 2026.