# STC SR01394LA

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Donaldson Company Inc, United States
- Description: 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
- Applied: October 31, 2001
- Status date: November 13, 2017
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21, Part 27
- Data sheets: [TCDS H3WE](https://openairdocs.org/tcds/H3WE)
- Certificate PDF: https://openairdocs.org/files/sha256/29/6f/296fc113e10a831a32248860b252b6c0e6f27c089523fbfa4efb9e4467435eab
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/7F7DAB65DF2A49BB86258228004AD384.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SR01394LA

## ADs that name it (0)

None.

## Approved models (8)

- MD Helicopters Inc. 369D ([TCDS H3WE](https://openairdocs.org/tcds/H3WE))
- MD Helicopters Inc. 369E ([TCDS H3WE](https://openairdocs.org/tcds/H3WE))
- MD Helicopters Inc. 369F ([TCDS H3WE](https://openairdocs.org/tcds/H3WE))
- MD Helicopters Inc. 369FF ([TCDS H3WE](https://openairdocs.org/tcds/H3WE))
- MD Helicopters Inc. 369H ([TCDS H3WE](https://openairdocs.org/tcds/H3WE))
- MD Helicopters Inc. 369HE ([TCDS H3WE](https://openairdocs.org/tcds/H3WE))
- MD Helicopters Inc. 369HM ([TCDS H3WE](https://openairdocs.org/tcds/H3WE))
- MD Helicopters Inc. 369HS ([TCDS H3WE](https://openairdocs.org/tcds/H3WE))

## What the certificate says

This is OCR from the scanned FAA certificate. OCR can misread letters and numbers.

T United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number SRO1394LA This certificate issued to: Donaldson Company, inc.

17891 Chesterfield Airport Road Chesterfield, MO 63005 Purt 6 of the Civil Air Briation Regulations Certification basis is set forth in Type Certificate Data Sheet H3WE Original Product Type Certificute Number: H3WE Make:

MD Helicopters, Inc.

Model.

369D, 369E, 369F, 369FF, 369H, 369HE, 369HM, 369HS Description of Type Design Change: Installation of Donaldson Company, Inc. Inlet Barrier Filter System in lieu of the Engine Air Particle Separator (with or without Mist Eliminator) or FOD Screen, in accordance with FAA approved Master Data List MD500-IBF-KIT-MDL, Revision B, dated September 5, 2002, or later FAA approved revision. FAA Approved Rotorcraft Flight Manual Supplement No. MD500-IBF-KIT-FMS, Revision N/C, dated September 17, 2002, or later FAA approved revision is required with this installation Limitations and Conditions: The installation should not be incorporated in any aircraft unless it is determined that the interrelationship between this installation and any previously approved configuration will not introduce any adverse upon the airworthiness of the aircraft. A copy of this STC must be included in the permanent records of the modified aircraft. If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.

Boffo !!!I Manager, Propulsion & Program Management Section Chicago ACO Branch (Title)

- To drain of the rife is nine a fre of not ending 51.00 or.

## Every issue (2)

- November 13, 2017: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/29/6f/296fc113e10a831a32248860b252b6c0e6f27c089523fbfa4efb9e4467435eab)
- April 7, 2004: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/7b/90/7b90e2a6873056f12b35fde923e243f8b3bd98f354176ee295e72c4e967aaac6)

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