# STC SA4050NM

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Mayo Aviation Inc, United States
- Description: Installation of medical interior.
- Applied: January 5, 1988
- Status date: June 1, 1993
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3A20](https://openairdocs.org/tcds/3A20)
- Certificate PDF: https://openairdocs.org/files/sha256/0e/e9/0ee98e1a4570c04edfe2aa741e43b7537c71b4f7144dc48dc9f7e4d07db58c1c
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/4F73D3C0FD041A8B85256CC2000C606C.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA4050NM

## ADs that name it (0)

None.

## Approved models (6)

- Hawker Beechcraft Corporation 65-90 ([TCDS 3A20](https://openairdocs.org/tcds/3A20))
- Hawker Beechcraft Corporation 65-A90 ([TCDS 3A20](https://openairdocs.org/tcds/3A20))
- Hawker Beechcraft Corporation B90 ([TCDS 3A20](https://openairdocs.org/tcds/3A20))
- Hawker Beechcraft Corporation C90 ([TCDS 3A20](https://openairdocs.org/tcds/3A20))
- Hawker Beechcraft Corporation C90A ([TCDS 3A20](https://openairdocs.org/tcds/3A20))
- Hawker Beechcraft Corporation E90 ([TCDS 3A20](https://openairdocs.org/tcds/3A20))

## What the certificate says

This is OCR from the scanned FAA certificate. OCR can misread letters and numbers.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA4050NM This certificate issued to: Mayo Aviation, InC.

Certifies that the change in the type design for the following product with the limitations and conditions therefor as specified hereon meets the airvorthiness reguirements of Part 23 of the Federal Aviation Regulations.

Original Product - Type bertificate Number: 3A20 Make: Beech Model: 65-90, A-90, B-90, C-90, C-90А, E-90 Description of Type Design Change:

Installation of medical interior in accordance with Report DL-90M, Revision E, dated May 10, 1989, or later FAA approved revision.

Optional installation of an Isolette rack on left side of cabin per Master Drawing List Report DL-90-MI, FAA approved June 1, 1993 or later FAA approved revision.

1. FAA approved Aircraft Flight Manual Supplement dated May 18, 1989, or later FAA approved revision is required.

2. If the optional isolette rack is installed, FAA Approved Flight Manual Supplement dated June 1, 1993 or later FAA approved revision for the isolette is required.

Date of Application: . January 5, 1988 Sule reissued:

Date of Issuance: May 18, 1989 Jale unended: June 1, 1993 EDERAL AVIATION By distre of the hang ignolen RICHARD E. JENNINGS Signature) Manager TOMINISTRATO Northwest Mountain Region, Aurora, Colorado Denver Aircraft Certification Field Office (Title)

47.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA4050NM This approval should not be extended to aircraft of this model on which other previously approved modifications are incorporated unless it is determined that the relationship between this change and any of those other previously approved modifications will introduce no adverse effect upon the airworthiness of that aircraft.

**FAA FORM 8110-2-1 (10-69) PAGE 3 OF 3 PAGES**

## Every issue (1)

- June 1, 1993: Amended, Current. [certificate](https://openairdocs.org/files/sha256/0e/e9/0ee98e1a4570c04edfe2aa741e43b7537c71b4f7144dc48dc9f7e4d07db58c1c)

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