SA357AL
Installation of bulk fluid cargo tanks. Held by Sorm Industries, which holds 11 approved modifications in all. Last revised June 23, 1987. System: other and general.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Bombardier-Rotax GmbH; Bombardier-Rotax GmbH; Bombardier-Rotax GmbH
- Models
- DHC-6-100, DHC-6-200, DHC-6-300
- Type certificates
- A9EA, A9EA, A9EA
- On this site
- Dehavilland DHC-6 115 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.