# STC SA4-1520

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Cooper Engineering Corporation, United States
- Description: Ceconite 101 covering of all fabric covered surfaces.
- Status date: January 1, 1960
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS LTC-1](https://openairdocs.org/tcds/LTC-1)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/6BC098CC6FE1FC25862570CF00777DF8.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA4-1520

## ADs that name it (0)

None.

## Approved models (2)

- The Boeing Company Army B-17F ([TCDS LTC-1](https://openairdocs.org/tcds/LTC-1))
- The Boeing Company Army B-17G ([TCDS LTC-1](https://openairdocs.org/tcds/LTC-1))

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