# STC SA3372WE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: CFC Aviation Services LP, United States
- Description: Installation of single or dual ONTRAC III VLF/Omega navigation systems.
- Status date: August 19, 1994
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 2A15](https://openairdocs.org/tcds/2A15)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C5D8DB726112A67B85256CC2000A9767.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3372WE

## ADs that name it (0)

None.

## Approved models (4)

- Lockheed Aircraft Corporation 1329-23A ([TCDS 2A15](https://openairdocs.org/tcds/2A15))
- Lockheed Aircraft Corporation 1329-23D ([TCDS 2A15](https://openairdocs.org/tcds/2A15))
- Lockheed Aircraft Corporation 1329-23E ([TCDS 2A15](https://openairdocs.org/tcds/2A15))
- Lockheed Aircraft Corporation 1329-25 ([TCDS 2A15](https://openairdocs.org/tcds/2A15))

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