SA4-1028
Installation of Brittain Industries 20-gallon wing tip tanks. Held by General Aviation Modifications INC... Last revised February 7, 2020. System: airframe structure.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Multitech Engineering Corporation; Multitech Engineering Corporation
- Models
- D-16A, D-16
- Type certificates
- 2A1, 2A1
- 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.