# STC SA09553SC

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Steinbach & Associates, Inc., United States
- Description: Modification of the Environmental Control Systems to covert R12 vapor cycle systems into R134A refrigerant systems.
- Applied: November 17, 1998
- Status date: June 1, 1999
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS 3A15](https://openairdocs.org/tcds/3A15)
- Certificate PDF: https://openairdocs.org/files/sha256/d7/ee/d7ee7bd14b6a124084aabc2b187a59aaf26660fa37385c13a4eca05af7051ad3
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/3F01BE8E0813FCB785256CC1007F3B4C.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA09553SC

## ADs that name it (0)

None.

## Approved models (4)

- Beechcraft Corporation A36 ([TCDS 3A15](https://openairdocs.org/tcds/3A15))
- Beechcraft Corporation B36TC ([TCDS 3A15](https://openairdocs.org/tcds/3A15))
- Beechcraft Corporation F33A ([TCDS 3A15](https://openairdocs.org/tcds/3A15))
- Beechcraft Corporation V35B ([TCDS 3A15](https://openairdocs.org/tcds/3A15))

## 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.

,&fatts <f){ America of tEransportatitm - 3[par:ra[ .Afriattmi Administration Project Number ST5504SC-A (GGR) SA09553SC . e-j.>»f,S /<• steinbach & Associates, Inc.

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•/ r/ w-f f^ffff :'('*>rs- •sf'fWftw/ 3A15 Raytheon Aircraft Company (Beech) A36;B36TC;F33A, V35B Modification of the Environmental Control Sysiems in the aircraft make and models listed above to convert RI2 vapor cycle systems into R134A refrigerant systems, in accordance with Steinbach and Associates, Inc. Top Drawing List, Titled: "Beech Bonanza Series R134A Conversion", Document Number: 98250000, Revision: A, Dated May 12, 1999, or later FAA approved revision.

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

frstfa ftsif/ 64f j we fiff^i^ ^v ftsf/t/vf'frr •Wffff'svrsifttst tst r^'r//j/i$fa./frvi .-November 17. 1998 r/S-wwf • June 01, 1999 Manager. Special Certitkaiion OtTice Soulhwesl Region (Title) Any a t ion of this by a /Jne of not exceeding $1,QQQ, tor iippnsonment not 3 ye^rs^ or oath.

FAA. Form 8110-2(10-68) Page 1 of 1 certificate m^y be

INSTKUC'I IONS: The transfer ontiorsrmriii below may he used to niitiK ihi- <i|]|>r«}>nalr FAA 1',-^ioiiiil Ofikc tit thr transfer of ihis Supplfmrntal Type Certificate ['lit I AA « ill rrivsm- ihi- rrrlifH mt in ihc naim- <il tht- Iransferee and forvvard 11 lo him.

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Ccnificate Number to (Name oj transferee) (Address of transferee) __ r and strttt) , SlaU, and ?IP i«lel from (Name of grantor) (Print or type) (Address oj grantor) (Number and strttt} Extent of Authority (if licensing agreement):

Signature of grantor (In ink):.

## Every issue (1)

- June 1, 1999: Issued, Current. [certificate](https://openairdocs.org/files/sha256/d7/ee/d7ee7bd14b6a124084aabc2b187a59aaf26660fa37385c13a4eca05af7051ad3)

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