# STC SA191NE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Orel Aviation, Inc, United States
- Description: Replace original brake discs with discs modified in accordance with Roland Longarzo procedure.
- Status date: October 4, 1984
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A-759](https://openairdocs.org/tcds/A-759), [TCDS A21CE](https://openairdocs.org/tcds/A21CE), [TCDS 1A9](https://openairdocs.org/tcds/1A9), [TCDS 3A23](https://openairdocs.org/tcds/3A23), [TCDS 2A3](https://openairdocs.org/tcds/2A3), [TCDS 1A15](https://openairdocs.org/tcds/1A15), [TCDS 1A6](https://openairdocs.org/tcds/1A6), [TCDS 2A13](https://openairdocs.org/tcds/2A13), [TCDS A18SO](https://openairdocs.org/tcds/A18SO), [TCDS A11EA](https://openairdocs.org/tcds/A11EA), [TCDS A16EA](https://openairdocs.org/tcds/A16EA)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/7D699AC0042AFB1585256CC10083D2B7.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA191NE

## ADs that name it (0)

None.

## Approved models (24)

- American Champion Aircraft Corp. 7ECA ([TCDS A-759](https://openairdocs.org/tcds/A-759))
- American Champion Aircraft Corp. 7GCAA ([TCDS A-759](https://openairdocs.org/tcds/A-759))
- American Champion Aircraft Corp. 7GCBC ([TCDS A-759](https://openairdocs.org/tcds/A-759))
- American Champion Aircraft Corp. 8KCAB ([TCDS A21CE](https://openairdocs.org/tcds/A21CE))
- Booth Lee F. dba Taylorcraft Aerospace F19 ([TCDS 1A9](https://openairdocs.org/tcds/1A9))
- Maule Aerospace Technology Inc. Bee Dee M-4 ([TCDS 3A23](https://openairdocs.org/tcds/3A23))
- Maule Aerospace Technology Inc. Bee Dee M-5 Series ([TCDS 3A23](https://openairdocs.org/tcds/3A23))
- Mooney Aircraft Corporation M20A ([TCDS 2A3](https://openairdocs.org/tcds/2A3))
- Mooney Aircraft Corporation M20B ([TCDS 2A3](https://openairdocs.org/tcds/2A3))
- Mooney Aircraft Corporation M20D ([TCDS 2A3](https://openairdocs.org/tcds/2A3))
- Mooney Aircraft Corporation M20E ([TCDS 2A3](https://openairdocs.org/tcds/2A3))
- The New Piper Aircraft Inc. PA-22-108 ([TCDS 1A6](https://openairdocs.org/tcds/1A6))
- The New Piper Aircraft Inc. PA-24 ([TCDS 1A15](https://openairdocs.org/tcds/1A15))
- The New Piper Aircraft Inc. PA-24-250 ([TCDS 1A15](https://openairdocs.org/tcds/1A15))
- The New Piper Aircraft Inc. PA-24-260 ([TCDS 1A15](https://openairdocs.org/tcds/1A15))
- The New Piper Aircraft Inc. PA-28 Series ([TCDS 2A13](https://openairdocs.org/tcds/2A13))
- The New Piper Aircraft Inc. PA-28R Series ([TCDS 2A13](https://openairdocs.org/tcds/2A13))
- The New Piper Aircraft Inc. PA-38-112 ([TCDS A18SO](https://openairdocs.org/tcds/A18SO))
- Tiger Aircraft LLC AA-1 ([TCDS A11EA](https://openairdocs.org/tcds/A11EA))
- Tiger Aircraft LLC AA-1B ([TCDS A11EA](https://openairdocs.org/tcds/A11EA))
- Tiger Aircraft LLC AA-1C ([TCDS A11EA](https://openairdocs.org/tcds/A11EA))
- Tiger Aircraft LLC AA-5 ([TCDS A16EA](https://openairdocs.org/tcds/A16EA))
- Tiger Aircraft LLC AA-5A ([TCDS A16EA](https://openairdocs.org/tcds/A16EA))
- Tiger Aircraft LLC AA-5B ([TCDS A16EA](https://openairdocs.org/tcds/A16EA))

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