# STC SA2406SW

- 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 nose and main gear shock strut.
- Applied: January 8, 1975
- Status date: August 8, 1980
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS 3A10](https://openairdocs.org/tcds/3A10)
- Certificate PDF: https://openairdocs.org/files/sha256/23/61/23619c158d31ad40779e60522d529e3d2bbd2c19c0f25968885c50386bb5eb28
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/0FC86B8C3FF2ED9386257D950055EDA4.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA2406SW

## ADs that name it (0)

None.

## Approved models (1)

- Cessna Aircraft Company 310 ([TCDS 3A10](https://openairdocs.org/tcds/3A10))

## 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.

tat,TUt& , Duplicate copy issued on July 23, 2002 ttnittd £tatu or Bcpartment of ICraasportation— federal Stoiation administration Supplemental ¥uje Certificate SA2406SW Granville Lasseter d/b/a Granville's Aircraft Strut Sealant 802 E. Grant Horton, Texas 79346 C ivi 1 Air 3A10 Cessna 310 fAyri.-foAavtae,. Addition of Hydro Seal Fluid Additive to note and main gear shock strut according to Specifications dated 12/20/76, or later FAA approved revision.

Compatibility of this modification with other previously approved modifications oust be determined by the inatallar.

January 8, 1975 February 11 , 1977 '**?

a£AA^iM/twti*it/ti/j/}vJeftec6je<ri£t-A &tJ/4ri& £%4&rnvrwA-6fa&*r~4/f< 6 August 8, 1980 Revision 1 iy (Signature) Don P. Watson Chief, Engineering^ and Manufacturing Branch . (TitU) t punishable by a fine of not exceeding $1,000, or imprisonment not exceeding 3 years, or both.

7 ftis tertjficatf may it* tiartsfrrrtd in uccoidanft with FAR 21.47 FAA Foo* Bl 10-3 (10-68)

INSTRUCTIONS: Tha transfer endorsement below may be used to notify the appropriate FAA Regional Office of the transfer of the Supplemental Type Certificate.

The FAA will reissue the certificate in the name of the transferee and forward it to him.

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number_ to (Warns of transferee) (Address of transferee) {Number and street) (City, State, and ZIP code) from (Name of grantor) (Print or type) (Address of grantor) (Number S 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/sha256/23/61/23619c158d31ad40779e60522d529e3d2bbd2c19c0f25968885c50386bb5eb28)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.