# STC ST08995AC

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Metrea Special Aerospace ISR Inc., United States
- Description: Replacement of original O rings and backup rings from landing gear lower bearing and floating piston with Green Tweed, Inc. AGT seals.
- Applied: July 1, 1994
- Status date: April 29, 2025
- Product: Aircraft, Large Airplane
- Data sheets: [TCDS A2SW](https://openairdocs.org/tcds/A2SW)
- Certificate PDF: https://openairdocs.org/files/sha256/0a/e0/0ae058f263dbc6a00203ae525092c7b850973a78e3533f0f2de6461d5e1cd042
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID187511565020250519162234.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/ST08995AC

## ADs that name it (0)

None.

## Approved models (6)

- Israel Aircraft Industries Ltd. 1121 ([TCDS A2SW](https://openairdocs.org/tcds/A2SW))
- Israel Aircraft Industries Ltd. 1121A ([TCDS A2SW](https://openairdocs.org/tcds/A2SW))
- Israel Aircraft Industries Ltd. 1121B ([TCDS A2SW](https://openairdocs.org/tcds/A2SW))
- Israel Aircraft Industries Ltd. 1123 ([TCDS A2SW](https://openairdocs.org/tcds/A2SW))
- Israel Aircraft Industries Ltd. 1124 ([TCDS A2SW](https://openairdocs.org/tcds/A2SW))
- Israel Aircraft Industries Ltd. 1124A ([TCDS A2SW](https://openairdocs.org/tcds/A2SW))

## 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.

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Original Product 7\SH&HUWLILFDWH1XPEHU Make:

ST08995AC Metrea Special Aerospace, ISR Inc.

1100 N. Broadway Ave, Suite 200 Oklahoma City, OK 73103 Part 4b Civil Air Regulations A2SW Israel Aircraft Industries 1121, 1121A, 1121B, 1123, 1124, 1124A Replacement of O-rings and backup rings from the landing gear, lower bearing and floating piston with Green Tweed AGT seals. Data required:

1. Gulfstream Aerospace Technologies Master Document List No. GAT MDL-001, Rev. I/R, dated July 1, 1994, and

2. Gulfstream Aerospace Technologies Installation Instructions No. GAT SI-001, Rev. I/R, dated July 1, 1994, or later FAA Approved revisions for 1 or 2.

Compatibility of this design change with previously approved modifications must be determined by the installer.

July 1, 1994 2/7/1995, 2/17/1995, 9/14/1998, 4/29/2025 January 13, 1995 for Paul Nguyen Manager, Central Certification Branch Compliance & Airworthiness Division Aircraft Certification Service 2

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Too (Name and address of transferee):

Date oI transfer:

ST08995AC 2

## Every issue (2)

- April 29, 2025: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/0a/e0/0ae058f263dbc6a00203ae525092c7b850973a78e3533f0f2de6461d5e1cd042)
- September 14, 1998: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/eb/01/eb012db515e581f893ea2e35375574baa171bd4ea65ae38d6830d3b0dc18362a)

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