# STC SA5-29

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: M R Borer Aircraft Svc, United States
- Description: Install third seat in baggage compartment and relocate battery aft of baggage compartment.
- Status date: July 25, 1968
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 1A2](https://openairdocs.org/tcds/1A2)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/ECC6A4634702D0B285256CC2001225D7.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA5-29

## ADs that name it (0)

None.

## Approved models (3)

- The New Piper Aircraft Inc. PA-18A ([TCDS 1A2](https://openairdocs.org/tcds/1A2))
- The New Piper Aircraft Inc. PA-18A-”135” ([TCDS 1A2](https://openairdocs.org/tcds/1A2))
- The New Piper Aircraft Inc. PA-18A-”150” ([TCDS 1A2](https://openairdocs.org/tcds/1A2))

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