SA3930WE
Installation of 37.5 gallon auxiliary fuel tanks in each wing. (414 THRU S/N 414-0350). Held by Ocr Aviation, which holds 5 approved modifications in all. Last revised December 1, 2017. System: airframe structure.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Cessna Aircraft Long Beach Company The; 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
- 402A, 401, 401A, 401B, 402, 402B, 414
- Type certificates
- A7CE, A7CE, A7CE, A7CE, A7CE, A7CE, A7CE
- On this site
- Cessna 401 51 registered
Cessna 402 174 registered
Cessna 414 Chancellor 605 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.