SR01839AT
Installation of cyclic friction levers. Held by Thoroughbred Aviation Maintenance INC.. Last revised February 25, 2022. System: other and general.
What it applies to
- Kind of product
- Aircraft
- Design holder
- MD Helicopters LLC; MD Helicopters LLC; MD Helicopters LLC; MD Helicopters LLC; MD Helicopters LLC; MD Helicopters LLC; MD Helicopters LLC; MD Helicopters LLC; MD Helicopters LLC; MD Helicopters LLC; MD Helicopters LLC; MD Helicopters LLC
- Models
- 369, 369A, 369D, 369E, 369F, 369FF, 369H, 369HE, 369HM, 369HS, 500N, 600N
- Type certificates
- H3WE, H3WE, H3WE, H3WE, H3WE, H3WE, H3WE, H3WE, H3WE, H3WE, H3WE, H3WE
- On this site
- Hughes 369 500 series helicopters 123 registered
Md Helicopters Inc 369 108 registered
Md Helicopters Inc 500 14 registered
Md Helicopters Inc 600 12 registered
Md Helicopters Llc 369 34 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.