What it approves
Installation of a digital Electronics International exhaust gas temperature (E.G.T.) gauge (P/N ET-1).
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.
United States of America Department of Transportation_Federal Aviation Administration Supplemental Type Certificate Number SA1205NW (This STC is a duplicate original to replace the original which was lost. Issued 12/08/06)
This certificate, issued to Aero Air, Inc.
2050 NE 25th Ave Hillsboro, OR 97124 Part 3 of the Civil Air Regulations, May 15, 1956, as amended by 3-2 through 3-4 and Special Conditions dated April 1, 1965.
Original Product⎯Type Certificate Number: 2A4 Make: Rockwell Commander Model: 680T, 680V, 680W, and 681
Description of the Type Design Change: Installation of a digital Electronics International exhaust gas temperature (E.G.T.) gauge (P/N ET-1) in accordance with Electronics International ET-1 Maintenance Manual, Section X, and an alternate means of correcting the indicated Exhaust Gas Temperature (EGT) reading when the EGT Compensation System is either inoperative or removed from the aircraft.
NOTE: This replaces the Howell temperature indicator, P/N 3850305-5050.
Limitations and Conditions: Approval of this change in type design applies to the above model aircraft only.
This approval should not be extended to other 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, including changes in type design, will introduce no adverse effect upon the airworthiness of that aircraft A copy of this Certificate, Electronics International ET-1 Maintenance Manual, and the Federal Aviation Administration (FAA) approved Airplane Flight Manual Supplement, SP-06-003, Revision IR, dated November 29, 2006 shall be maintained as part of the permanent records for the modified aircraft.
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: January 15, 1981 Date reissued:
Date of issuance: April 1, 1981 Date amended: December 8, 2006
(Signature) Acting Manager, Seattle Aircraft Certification Office (Title)
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