SH552NW
Install cargo hook electronic scale. Held by Smith Marvin. Last revised January 4, 1978. System: other and general.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Aeronca Aircraft Corporation; MD Helicopter Inc.; MD Helicopter Inc.; MD Helicopter Inc.; MD Helicopter Inc.
- Models
- 15AC, 369HM, 369HS, 369D, 369HE
- Type certificates
- A-802, H3WE, H3WE, H3WE, H3WE
- On this site
- Aeronca 15 162 registered
Hughes 369 500 series helicopters 123 registered
Md Helicopters Inc 369 108 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 21, 2026.