# STC SA1333WE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Northwest Airlines, Inc, United States
- Description: Northern Aero Industries, Ltd. cyclic deicing system Model78-10055.
- Status date: November 14, 1986
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 7A1](https://openairdocs.org/tcds/7A1)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/9BFCDD518C11DBBA85256CC100820F0B.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA1333WE

## ADs that name it (0)

None.

## Approved models (1)

- Fairchild Industries Inc. F27 Series ([TCDS 7A1](https://openairdocs.org/tcds/7A1))

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