SA1-554
Side-mounted pitot and static vent air speed system. Held by General Foods CORP. Last revised January 1, 1960. System: instruments and avionics.
What it applies to
- Kind of product
- Aircraft
- Design holder
- McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation
- Models
- DC3-G202A (Army C-49J), DC3-G202A (Army C-49D), DC3-G202A (Army C-49C), DC3-G202A (Army C-49B), DC3-G202A (Army C-49A), DC3-G202A (Army C-49), DC3-G202A (Navy R4D-2), DC3-G202A (Army C-49K)
- Type certificates
- A-618, A-618, A-618, A-618, A-618, A-618, A-618, A-618
- On this site
- Douglas DC-3 155 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.