# STC SA997SO

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Beryl D' Shannon Aviation Specialties Inc., United States
- Description: Installation of a single-piece sloped windshield.
- Status date: March 20, 1994
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3A15](https://openairdocs.org/tcds/3A15), [TCDS A-777](https://openairdocs.org/tcds/A-777)
- Certificate PDF: https://openairdocs.org/files/sha256/2b/fb/2bfb1fcaabf511f25d05345ba2ebe877858ae671f8404ad94d11434e8bb69539
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C086B1507BF8AD1485256CC2005A72CD.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA997SO

## ADs that name it (0)

None.

## Approved models (33)

- Raytheon Aircraft Company 35 ([TCDS A-777](https://openairdocs.org/tcds/A-777))
- Raytheon Aircraft Company 35-33 ([TCDS 3A15](https://openairdocs.org/tcds/3A15))
- Raytheon Aircraft Company 35-A33 ([TCDS 3A15](https://openairdocs.org/tcds/3A15))
- Raytheon Aircraft Company 35-B33 ([TCDS 3A15](https://openairdocs.org/tcds/3A15))
- Raytheon Aircraft Company 35-C33 ([TCDS 3A15](https://openairdocs.org/tcds/3A15))
- Raytheon Aircraft Company 35-C33A ([TCDS 3A15](https://openairdocs.org/tcds/3A15))
- Raytheon Aircraft Company 35R ([TCDS A-777](https://openairdocs.org/tcds/A-777))
- Raytheon Aircraft Company 36 ([TCDS 3A15](https://openairdocs.org/tcds/3A15))
- Raytheon Aircraft Company A35 ([TCDS A-777](https://openairdocs.org/tcds/A-777))
- Raytheon Aircraft Company A36 ([TCDS 3A15](https://openairdocs.org/tcds/3A15))
- Raytheon Aircraft Company B35 ([TCDS A-777](https://openairdocs.org/tcds/A-777))
- Raytheon Aircraft Company C35 ([TCDS A-777](https://openairdocs.org/tcds/A-777))
- Raytheon Aircraft Company D35 ([TCDS A-777](https://openairdocs.org/tcds/A-777))
- Raytheon Aircraft Company E33 ([TCDS 3A15](https://openairdocs.org/tcds/3A15))
- Raytheon Aircraft Company E33A ([TCDS 3A15](https://openairdocs.org/tcds/3A15))
- Raytheon Aircraft Company E33C ([TCDS 3A15](https://openairdocs.org/tcds/3A15))
- Raytheon Aircraft Company E35 ([TCDS A-777](https://openairdocs.org/tcds/A-777))
- Raytheon Aircraft Company F33 ([TCDS 3A15](https://openairdocs.org/tcds/3A15))
- Raytheon Aircraft Company F33A ([TCDS 3A15](https://openairdocs.org/tcds/3A15))
- Raytheon Aircraft Company F33C ([TCDS 3A15](https://openairdocs.org/tcds/3A15))
- Raytheon Aircraft Company F35 ([TCDS A-777](https://openairdocs.org/tcds/A-777))
- Raytheon Aircraft Company G33 ([TCDS 3A15](https://openairdocs.org/tcds/3A15))
- Raytheon Aircraft Company G35 ([TCDS A-777](https://openairdocs.org/tcds/A-777))
- Raytheon Aircraft Company H35 ([TCDS 3A15](https://openairdocs.org/tcds/3A15))
- Raytheon Aircraft Company J35 ([TCDS 3A15](https://openairdocs.org/tcds/3A15))
- Raytheon Aircraft Company K35 ([TCDS 3A15](https://openairdocs.org/tcds/3A15))
- Raytheon Aircraft Company M35 ([TCDS 3A15](https://openairdocs.org/tcds/3A15))
- Raytheon Aircraft Company N35 ([TCDS 3A15](https://openairdocs.org/tcds/3A15))
- Raytheon Aircraft Company P35 ([TCDS 3A15](https://openairdocs.org/tcds/3A15))
- Raytheon Aircraft Company S35 ([TCDS 3A15](https://openairdocs.org/tcds/3A15))
- Raytheon Aircraft Company V35 ([TCDS 3A15](https://openairdocs.org/tcds/3A15))
- Raytheon Aircraft Company V35A ([TCDS 3A15](https://openairdocs.org/tcds/3A15))
- Raytheon Aircraft Company 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.

'l:lnittd .Stata " 5!mMa Btpamnrnc or ~ransporcgtion - .:ftdml g uigtion g dmini.Strntion ~upplrmrntel 11C~pt [crtificatc SA997SO Yk.u4-u. ~/Q Beryl D' Shanno n Aviation Specialties, Inc.

~ d.a6 d.. ~ffl · ~r~fo.d..~~6<U<d d.,/.;,,,d,,,',; ,n.J und <w~.a1i;-na ~-,yv,r./ud-k-un--r,l,Ua ·~~~--~~41~--' 3/03 ,f~ Civil Air ~ ~,,,,J .9.~d-.~~-~. 3Al5, A- 777 ,,//'.-l., Bee ch ~.//..r/J : All mode ls on 3A15 (Par t 3) All mode ls on A-777 (Part 03) Installation of a single-piece slop e d w1.od s hi e1d in accordance with Ber yl I D' Shannon Aviati on Specialties, Inc., Draw1.ng Bl9000, Revision D, dated November 9, 1979, (or l ater FAA approved revision) .

I ..,L;,,A~un14,and' l5':...,,,/,i'#,,.., This a pprov a l should not be extended to oth er aircraft of the same model on whi ch other approved modification s h ave been made unless it has first been determined that the i nterrelationship between the se various modi­ fi cati ons wi ll have no adverse affect on the airworthiness of t he aircraft. This determination shoul d i nc lu de consideration of signifi ca nt change s in weight distributi on such a s an inc rease in the fixed disposable weight in the fus elag e.

April 24 , 1976 June 7, 1976 V .,,/..,.,,.,,u£u/ May 7, 19 79 , N ov. 21, 1979 ~ISC. ROCK, (S1 .(no tu1r J Assista nt Chief, Engine e ring and Manufac tu r ing Branch Flight Standard s Division ('( ,ti, ) A,ry, altrrat1on of thu u rt ,ficat c ,s punuha blt Ir, a f,nt of not cxcud1ng S! ,000, or 1mpruonm tnl not aard1nf!. J )ton, or both , Tltu u,11fuo1t mar b, trn,ufrr ,,d ,,., orro,ttn nrr .,-,t h I- .f H ~'I i l P,v. ,.,._ 11 10.1 (10• 611

## Every issue (1)

- November 21, 1979: Amended, Historical. [certificate](https://openairdocs.org/files/sha256/2b/fb/2bfb1fcaabf511f25d05345ba2ebe877858ae671f8404ad94d11434e8bb69539)

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