SR01394LA
Installation of Aerospace Filtration Systems Inlet Barrier Filter System in lieu of the Engine Air Particle Separator (with or without Mist Eliminator) or FOD Screen. Held by Donaldson Company INC, which holds 4 approved modifications in all. Last revised November 13, 2017. System: engine.
What it applies to
- Kind of product
- Aircraft
- Design holder
- MD Helicopters Inc.; MD Helicopters Inc.; MD Helicopters Inc.; MD Helicopters Inc.; MD Helicopters Inc.; MD Helicopters Inc.; MD Helicopters Inc.; MD Helicopters Inc.
- Models
- 369D, 369E, 369F, 369FF, 369H, 369HE, 369HM, 369HS
- Type certificates
- H3WE, H3WE, H3WE, H3WE, H3WE, H3WE, H3WE, H3WE
- On this site
- Hughes 369 500 series helicopters 122 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 9, 2026.