# STC SA2946SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Granville Lasseter/dba Granville's Aircraft Strut Sealant, United States
- Description: Addition of Hydro Seal Fluid Additive to the landing gear shock struts.
- Applied: January 15, 1979
- Status date: August 8, 1980
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A3SO](https://openairdocs.org/tcds/A3SO)
- Certificate PDF: https://openairdocs.org/files/sha256/ef/e3/efe3237aa507fd9b13287f2f23615730131b06e368bff9a3d2e1dc86e57e5fa6
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/60F1A181D622BE1085256CC20008CB09.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA2946SW

## ADs that name it (0)

None.

## Approved models (5)

- Piper Aircraft Inc. PA-32-260 ([TCDS A3SO](https://openairdocs.org/tcds/A3SO))
- Piper Aircraft Inc. PA-32-300 ([TCDS A3SO](https://openairdocs.org/tcds/A3SO))
- Piper Aircraft Inc. PA-32R-300 ([TCDS A3SO](https://openairdocs.org/tcds/A3SO))
- Piper Aircraft Inc. PA-32RT-300 ([TCDS A3SO](https://openairdocs.org/tcds/A3SO))
- Piper Aircraft Inc. PA-32RT-300T ([TCDS A3SO](https://openairdocs.org/tcds/A3SO))

## What the certificate says

Read from the PDF's text layer, without the form's printed wording; the layout is lost and the order can differ. The PDF is the record.

Duplicate copy issued on July 23, 2002 Untert £tatu of arertca Btpartmtnt of transportation --Jedera! Station SWministradon Supplemental t^pe Certificate SA2946SW Grsmrllle Lasseter d/b/a Granvllle's Aircraft Strut Sealant 802 E. Grant Morton, Texas 79346 aM 23 A7SO Federal Aviation ..$<M PA-32-260, PA-32-300, PA-32R-300, PA-32RT-300T, PA-32RT-300 . Addition of Hydro Seal Fluid Additive to the landing gear shock struts according to specifications dated 12/26/76, or later FAA approved revision.

Compatibility of this modification with other previously approved modifications must be determined by the installer.

j^^ -!& january 15, 1979 March 2l 1979 August 8, 1980 Revision 1 Origlrl Signed J. J. Shapley (Signafuif) Don P. Watson Chief, Engineering and Manufacturing Branch

This crrtiftcatf may be trtinsjerrtd ^n afcordanct with FAR 21.47.

FAA Fo» 81 10-3 {10-6B|

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number_ to (Name of transferee) (Address of transferee) and street) (City, State, and ZIP code) from (Name of grantor) (Print or type) (Address of grantor) (Number £ street) {City, State, and ZIP code) Extent of Authority (if licensing agreement):

Signature of grantor (In ink) :

## Every issue (1)

- August 8, 1980: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/ef/e3/efe3237aa507fd9b13287f2f23615730131b06e368bff9a3d2e1dc86e57e5fa6)

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