# STC SR00311BO - Type: Supplemental type certificate - Status: Current, Issued - Holder: Firefly Inc., United States - Description: Installation of Hydraulic Pack System including a hydraulic pump connected to the auxiliary pad of the onboard Lycoming engine in accordance with Firefly Inc. Master Document List, Document No. FFI-10000MDL, dated March 29, 2011, or later FAA-approved revision. - Applied: September 29, 2011 - Status date: May 18, 2011 - Product: Aircraft, Rotorcraft - Certification basis: Part 21, Part 27 - Data sheets: [TCDS H11NM](https://openairdocs.org/tcds/H11NM) - Certificate PDF: https://openairdocs.org/files/sha256/2a/08/2a0874b10e8d28599b289d1347f69cbd0a904eb368576311e62d1133226eee01 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/4D072F6F2498CC1C862578A20071C03E.0001 - DRS record last changed: December 5, 2025 - Page: https://openairdocs.org/stc/SR00311BO ## ADs that name it (0) None. ## Approved models (2) - Robinson Helicopter Company R44 ([TCDS H11NM](https://openairdocs.org/tcds/H11NM)) - Robinson Helicopter Company R44 II ([TCDS H11NM](https://openairdocs.org/tcds/H11NM)) ## What the certificate says Read from the PDF's text layer, without the form's printed wording; the layout is lost and the order can differ. The PDF is the record. Part 27 of the Federal Aviation Regulations. Installation of Hydraulic Pack System including a hydraulic pump connected to the auxiliary pad of the onboard Lycoming engine in accordance with Firefly Inc. Master Document List, Document No. FFI-10000MDL, dated March 29, 2011, or later FAA-approved revision. 1. Maintenance must be in accordance with Firefly, Inc. Instructions for Continued Airworthiness (ICA) Document No. FFI-10000, Revision A, dated May 18, 2011, or later FAA accepted revision. The ICA must be made available to the operator at the time of installation. Firefly, Inc. 318 Tremont Street, P.O. Box 726 South Carver, MA 02366-0726 H11NM Make : Robinson Model : R44, R44II Date of application : September 29, 2010 Date of issuance : May 18, 2011 ( Signature) Robert G. Mann Manager Boston Aircraft Certification Office ( Title) United States Of America Department of Transportation - Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number SR00311BO May 18, 2011 FAA Form 8110-2-1(10-69) Page 2 of 3 Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee) (Address of transferee) (Number and street) ( City, State, and ZIP code) from (Name of grantor)(Print or type) (Address of grantor) (Number & street) (City, State, and ZIP code) Signature of grantor ( In ink): United States Of America Department of Transportation - Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number SR00311BO May 18, 2011 FAA Form 8110-2-1(10-69) Page 3 of 3 Certification Basis: Based on 14 CFR §§ 21.115 and 21.101, and the FAA policy for significant changes in FAA Order 8110.48, the certification basis for the Robinson R44 and R44II aircraft are as follows: a. The type certification basis for Robinson R44 and R44II is shown on TCDS H11NM for parts not changed or not affected by the change. b. The certification for parts changed or affected by the change since the reference date of application, September 29, 2010, is based upon part 27 as amended by Amendment 27-45. Based on 14 CFR §§ 21.115 and 21.101, and the FAA policy for significant changes in FAA Order 8110.48, the certification basis for this modification was determined to be: Regulations at the amendment level in TCDS H11NM 27.73, 27.143, 27.251, 27.301(a), 27.303, 27.305(a), 27.307(a), 27.309(a), 27.561(a) and (d), 27.605, 27.609(b)(1), 27.610, 27.901(b), 27.1045(b), 27.1163(a), 27.1183(a), 27.1301, 27.1309, 27.1435 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. ----------------------------------------------END-------------------------------------------------- ## Every issue (1) - May 18, 2011: Issued, Current. [certificate](https://openairdocs.org/files/sha256/2a/08/2a0874b10e8d28599b289d1347f69cbd0a904eb368576311e62d1133226eee01) --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.