# STC SR09222RC

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Midwest Aerospace TC LLC, United States
- Description: Installation of a modified fin spar
- Applied: October 19, 1998
- Status date: February 2, 2009
- Product: Aircraft, Rotorcraft
- Data sheets: [TCDS H12NM](https://openairdocs.org/tcds/H12NM)
- Certificate PDF: https://openairdocs.org/files/sha256/b3/9a/b39aad1c9daeeadabc1078bbad38ab6e3c8aeba8a449e659ee63a87761a2c9ae
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID148930438020230703135913.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SR09222RC

## ADs that name it (0)

None.

## Approved models (3)

- Rotorcraft Development Corporation TH-1F ([TCDS H12NM](https://openairdocs.org/tcds/H12NM))
- Rotorcraft Development Corporation UH-1F ([TCDS H12NM](https://openairdocs.org/tcds/H12NM))
- Rotorcraft Development Corporation UH-1P ([TCDS H12NM](https://openairdocs.org/tcds/H12NM))

## 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.

FAA Form 8110-2 (03/21) SR09222RC Midwest Aerospace TC LLC 9465 Joliet Street St. John, IN 46373 7 the Civil Air Regulations H12NM Rotorcraft Development Corporation TH-1F, UH-1F, UH-1P Installation of a vertical fin spar in accordance with Garlick Drawing List GH 98-05, Revision IR, dated October 12, 1998, or later FAA approved revisions.

October 19, 1998 July 10, 2007; February 2, 2009; February 8, 2023 October 26, 1999 January 26, 2012 for Manager, West Certification Branch

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

2. If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.

3. A copy of this Certificate must be maintained as part of the permanent records of the aircraft.

FAA Form 8110-2 (03/21) SR09222RC

## Every issue (3)

- February 2, 2009: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/b3/9a/b39aad1c9daeeadabc1078bbad38ab6e3c8aeba8a449e659ee63a87761a2c9ae)
- February 2, 2009: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/26/9f/269fbb11ea581ccebda3795e5099395aeb02a61594c26952877940ce0b98e6a2)
- July 10, 2007: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/03/f2/03f2c504d5546cf2c2cd5945aef9f803f26f91819c6417d7994687d2db7d4512)

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