What it approves
Install Pratt & Whitney PT6A-21engines in place of PT6A-20A engines
What the certificate says
From the PDF’s text layer, without the form’s printed wording. Layout and order may differ; the PDF is the record.
Number SA5460SW This Certificate issued to Blackhawk Modifications, Inc.
1800 E. Sahara Drive Las Vegas, NV 89104
Part 3 of the Civil Air Regulations.
Original Product Type Certificate Number : 3A20 Make : Beech
Model : C-90
Install Pratt & Whitney PT6A-21 engines in place of PT6A-20A engines in accordance with Drawing 03-001, Revision A dated 6/16/83, Sheets 1 and 2, or later FAA approved revision.
1. FAA Approved Airplane Flight Manual Supplement dated June 17, 1983, is required.
2. Eligible on Beech C-90 with PT6A-20A engines only.
3. 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.
Date of application : May 29, 1983
Date of issuance : June 17, 1983 Date reissued : December 6, 2004
( Signature) S. Frances Cox, Manager Special Certification Office, Southwest Region
(Title)
ADs that name this STC · 0
An AD can apply because an STC is installed, or mention one in its text.
Approved models · 1
| Make | Model | Data sheet |
|---|---|---|
| Raytheon Aircraft Company | C90 | 3A20 |