# STC SA178SO

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: National Airlines Inc
- Description: Cockpit voice recording system.
- Status date: January 1, 1960
- Data sheets: 4A22
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C982AB966498CD57862570C80065F45B.0001
- Page: https://openairdocs.org/stc/SA178SO

## ADs that name it

None.

## Approved models (1)

- Lockheed Aircraft Corporation 188A (TCDS 4A22)

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From OpenAirDocs.org, an independent open copy of FAA data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.