What it approves
Installation of the Main Rotor Head Modification
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 SR01755SE
This certificate, issued to Croman Corporation 801 Avenue C White City, Oregon 97503
Part * of the * Regulations.
Original ProductType Certificate Number: * See attached Federal Aviation Administration (FAA) Make: Approved Model List (AML) SR01755SE for approved Model: aircraft models and applicable airworthiness regulations
Description of the Type Design Change: Installation of the Main Rotor Head Modification in accordance with McClenahan Engineering Document as listed on AML SR01755SE, or later FAA-approved revision.
“Chart C-Base Weight and Balance” must be updated per the information provided in Document No.
WBS-SH3H-1 “Weight and Balance Manual Supplement for Modified Main Rotor Head,” Revision IR, dated April 5, 2007, or later FAA-accepted revision.
Limitations and Conditions: Rotorcraft modified with this certificate must have installed either the commercial main rotor blades, Part Number 61170-20201-55 and subsequent with the BIM system OR the Carson Helicopters, Inc. composite main rotor blades, Part Number 163-101-1, without the BIM system per STC SR01585NY. Approval of this change in type design applies to the rotorcraft listed on AML SR01755SE only. The rotorcraft must be operated and maintained in accordance with the applicable documents listed on AML SR01755SE.
This approval should not be extended to other rotorcraft of this model on which other previously approved modifications are incorporated unless it is determined by the installer that the relationship between this change and any of the other previously approved modifications, including changes in type design, will introduce no adverse effect upon the airworthiness of that rotorcraft. A copy of this certificate, AML SR01755SE, the Instructions for Continued Airworthiness, and the Rotorcraft Flight Manual Supplement must be maintained as part of the permanent records for the modified rotorcraft.
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: October 8, 2004 Date reissued:
Date of issuance: April 19, 2007 Date amended: June 23, 2014, April 21, 2016
(Signature)
Manager, Seattle 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 · 2
Every issue · 4
DRS keeps each issue of an STC as its own record, with its own certificate and attachments.
| Date | Status | Files |
|---|---|---|
| April 21, 2016 | Amended, current | CertificateApproved model list |
| July 30, 2014 | Amended, earlier issue | CertificateAML_SR01755SE |
| June 23, 2014 | Amended, earlier issue | CertificateApproved model list |
| April 19, 2007 | Issued, earlier issue | Certificate |