SA1380WE
Installation of four 500-gallon fuel oil tanks in fuselage. Held by Alaska Intl Air, INC, which holds 3 approved modifications in all. Last revised May 31, 1977. System: airframe structure.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Curtiss-Wright Corporation; Curtiss-Wright Corporation
- Models
- Army C-46A, Army C-46F
- Type certificates
- A-772, A-772
- 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.