# STC SA1825NM

- Type: Supplemental type certificate
- Status: Current, Reissued and Amended
- Holder: Hamilton Standard Div, United States
- Description: This modification installs Hamilton Standard Model54H60-77/A7109B-2 or54H60-77/A7121B-2 propellers. (440 Military C-131E MODIFIED IN ACCORDANCE WITH STC SA-1100)
- Status date: March 16, 1983
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 6A6](https://openairdocs.org/tcds/6A6)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/0895E21C91CAE20A85256CCB0060186A.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA1825NM

## ADs that name it (0)

None.

## Approved models (2)

- Tracor Flight Systems Inc. 340 ([TCDS 6A6](https://openairdocs.org/tcds/6A6))
- Tracor Flight Systems Inc. 440 Military C-131E ([TCDS 6A6](https://openairdocs.org/tcds/6A6))

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