# STC SA4-1501

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Johns-Manville Corp, United States
- Description: AB-6562 and AB-6563 brake blocks.
- Status date: January 1, 1960
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 1A10](https://openairdocs.org/tcds/1A10), [TCDS 1A15](https://openairdocs.org/tcds/1A15), [TCDS 2A10](https://openairdocs.org/tcds/2A10), [TCDS 2A8](https://openairdocs.org/tcds/2A8)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/8007F19DEE83C934862570CF00777C18.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA4-1501

## ADs that name it (0)

None.

## Approved models (4)

- The New Piper Aircraft Inc. PA-23 ([TCDS 1A10](https://openairdocs.org/tcds/1A10))
- The New Piper Aircraft Inc. PA-24 ([TCDS 1A15](https://openairdocs.org/tcds/1A15))
- The New Piper Aircraft Inc. PA-25 (Normal Cat.) ([TCDS 2A8](https://openairdocs.org/tcds/2A8))
- The New Piper Aircraft Inc. PA-25 (Restricted Cat.) ([TCDS 2A10](https://openairdocs.org/tcds/2A10))

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