# STC SA4-1365

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Staggerwing Museum Foundation Inc., United States
- Description: Installation of two combustion heaters in nose for model D18S, serial number 99 ONLY.
- Applied: January 12, 1961
- Status date: September 3, 2004
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A-765](https://openairdocs.org/tcds/A-765)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E3A4A53CD127DC6A862570CE0076E000.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA4-1365

## ADs that name it (0)

None.

## Approved models (1)

- Raytheon Aircraft Company D18S ([TCDS A-765](https://openairdocs.org/tcds/A-765))

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