# STC SA4-87

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Transocean Air Lines, United States
- Description: Cargo floors installation and modification of flap and flight controls.
- Status date: January 1, 1960
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 2-577](https://openairdocs.org/tcds/2-577)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/2D04FA9DF5EFB9A6862570D00072D141.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA4-87

## ADs that name it (0)

None.

## Approved models (1)

- Douglas Aircraft Co. Inc. Army B-18 Series ([TCDS 2-577](https://openairdocs.org/tcds/2-577))

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