# STC ST181CH

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Aviation Technologies Group, United States
- Description: Installation of a landing light pulsing system.
- Status date: March 24, 1994
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A52EU](https://openairdocs.org/tcds/A52EU)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/B037A93C2AA208ED85256CC300035F5D.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/ST181CH

## ADs that name it (0)

None.

## Approved models (2)

- Saab Aircraft AB 340A (SAAB-SF340A) ([TCDS A52EU](https://openairdocs.org/tcds/A52EU))
- Saab Aircraft AB SAAB 340B ([TCDS A52EU](https://openairdocs.org/tcds/A52EU))

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