What it approves
ONE-ONLY: Install Pratt & Whitney, Canada PT6A-135A engines (modified with a dual line start fuel system ) in place of PT6A-135 engine, serial number LA-71.
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.
This certificate issued to
Part 23 of the Federal Aviation Regulations.
Original Product -- Type Certificate Number: A31CE
Install Pratt & Whitney, Canada PT6A-135A engines (modified with a dual line start fuel system ) in place of PT6A-135 engine in accordance with Standard Aero Inc. “Installation Instructions” Report No. 55036-28, dated August 23, 2006.
1. You cannot use descriptive data about this design change to duplicate other products. This approval is limited to only the installation made in Beech F90, King Air Serial Number LA-71. This STC does not permit manufacturing of parts for multiple installations.
2. This aircraft is equipped with Hartzell HC-D4N-3A/D92905K propellers installed in accordance with STC SA4131NM (Raisbeck Quiet Turbofan Propellers).
3. Pratt and Whiney Canada PT6A-135 was modified to PT6A-135A via 337 and returned to service.
4. Flight Manual Supplement 55036-26, Revision A, FAA approved December 20, 2006 is required with this installation.
5. Standard Aero Inc. Instruments for Continued Airworthiness Report Number 55036-30, Revision New, dated September 20, 2006 is required for this modificaiton.
6. The listed temperature for for the PT6A-135A engine is 93 °F for maximum continuous and takeoff power compared to 85 °F for the PT6-135 engine. The engine ratings are based on static sea level conditions 29.92 in. Hg pressure, compressor intake screen installed, no external accessory loads and no airbleed. These ratings are available up to the following compressor inlet air (dry) temperatures.
7. Reference P&WC Engine Maintenance Manual (Part no. 3043512) for instructions concerning lubrication of “wet spline” drive for the starter generator that is a feature of the PT6A-135A engine.
Standard Aero Inc.
600 Hayden Circle Allentown, PA 18109 Make: Raytheon Aircraft Company Beech F90, King Air Date of application: September 8, 2006
Date of issuance: December 20, 2006 Date reissued:
( Signature) Anthony Socias Manager New York Aircraft Certification Office
( 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 | F90 | A31CE |