# STC SH2502NM

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Teledyne Systems Company, United States
- Description: Installation of Teledyne Systems P/N 8018980-501 or -503 TDL-711A Loran C micro-navigator system.
- Status date: September 5, 1984
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21
- Data sheets: [TCDS H4SW](https://openairdocs.org/tcds/H4SW)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/7DFD11F3E3300DDA85256CC2005C2FFC.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SH2502NM

## ADs that name it (0)

None.

## Approved models (1)

- Bell Helicopter Textron 212 ([TCDS H4SW](https://openairdocs.org/tcds/H4SW))

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