# STC SA4-463

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Universal Aircraft Ind, United States
- Description: New exhaust stack crossover tube with standard bend radius of 5.0 inches.
- Status date: January 1, 1960
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A-694](https://openairdocs.org/tcds/A-694)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/64E9EC41FB043AAA862570D00054D7E2.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA4-463

## ADs that name it (0)

None.

## Approved models (1)

- The Don Luscombe Aviation History Foundation Inc. 8 Series ([TCDS A-694](https://openairdocs.org/tcds/A-694))

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