STC SR00086BO

Number SR00086BO

FAA Form 8110-2 (03/21) SUPERSEDES PREVIOUS EDITION Page 1 of 3 This certificate issued to:

Petersen Aviation, Inc.

984 K Road Minden, NE 68959 Part 27 of the Federal Aviation Regulations.

Original Product - Type Certificate Number: H11NM Make: Robinson Model: R44

Operation of rotorcraft on unleaded and leaded automotive gasoline, 91 minimum antiknock index (RON + MON)/2 per ATSM Specification D-439 or D-4814 in accordance with H.J. Fuller Installation instruction no. HJF97044, dated November 1, 1997 or later FAA-approved revisions.

Operation of rotorcraft on UL91 (minimum) grade aviation fuel per ATSM D7547.

Intermixing the above listed fuels with 100LL is approved.

(continued on Page 3 of 3)

Date of Application: November 9, 1997 Date reissued: April 12, 2023

Date of Issuance: June 5, 1998 Date amended: January 29, 2016

Signature Christina M. Underwood Manager, East Certification Branch Title

Number SR00086BO

FAA Form 8110-2 (03/21) SUPERSEDES PREVIOUS EDITION Page 2 of 3

To (Name and address of transferee) Name:

Address (Number and Street, City, State, and ZIP Code):

From (Name and address of grantor) Name:

Address (Number and Street, City, State, and ZIP Code):

(Continuation Sheet) Number SR00086BO

FAA Form 8110-2 (03/21) SUPERSEDES PREVIOUS EDITION Page 3 of 3 January 29, 2016

Limitations and Conditions: (continued from Page 1 of 3)

1. This approval is limited to those model helicopters equipped with Lycoming O-540-F1B5 engines modified IAW STC SE00663WI. This approval is only applicable with the following engine power ratings:

Maximum Continuous Power 205 HP (24.7 in Hg) @ 2718 RPM Takeoff 225 HP (26.3 in Hg) @ 2718 RPM

2. Howard J. Fuller, Jr., Rotorcraft Flight Manual Supplement No. 44-1, Rev 3, dated January 29, 2016, or later FAA approved revisions is required and must be carried in the helicopter during all flights.

3. This supplemental type certificate is for the Robinson R-44 helicopter only, and is not applicable to the R-44 II helicopter.

4. Fuel containing alcohol is not approved except isopropyl alcohol as an icing inhibitor IAW the Rotorcraft Flight Manual Supplement.

5. Compatibility of this design change with previously approved modifications must be determined by the installer.

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