SA3790WE
Removal of front half of rear cargo door. Held by Blumenthal James R. Last revised November 17, 1978. System: airframe structure.
What it applies to
- Kind of product
- Aircraft
- Design holder
- McDonnell Douglas Corporation; McDonnell Douglas Corporation
- Models
- C54G-DC (Navy R5D-5), C54G-DC (Army C-54G)
- Type certificates
- A-762, A-762
- On this site
- Douglas C-54 7 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 22, 2026.