# STC SP12WP

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: American Propeller Service
- Description: Installation of greaseless counterweight bearings. (3D 40-225, -277, -231, -235, -267, -271)
- Status date: November 20, 1981
- Data sheets: 249
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/8901CF2312EC78A085256CC2006223F9.0001
- Page: https://openairdocs.org/stc/SP12WP

## ADs that name it

None.

## Approved models (1)

- Hamilton Standard Division 3D (TCDS 249)

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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.