STC SH288NE

99 Boylston Circle Shrewsbury, MA 01545

Part 27 of the Federal Aviation Regulations.

Original Product Type Certificate Number : H10WE Make : Robinson

Model : R22, R22 Alpha, R22 Beta, R22 Mariner

Installation of Model 2201 Bubble Doors in the following configurations:

1. In accordance with Fuller Aviation Corporation Drawing 83051, Revision D, dated December 12, 1985, and Installation Instructions for Fuller Aviation Corporation “Bubble Doors”, P/N 83051-1 and 83051-2, dated February 7, 1986. Weight and balance change for the installation is 9.0 pounds at a moment arm of 77.5 inches.

1. Howard J. Fuller, Jr. Rotorcraft Flight Manual Supplement No. 002, for Robinson R22, R22 Alpha, R22 Beta and R22 Mariner with Fuller Bubble Doors, dated July 2, 2004, or later FAA-approved revisions, is required and must be carried in the helicopter during all flights.

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

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 : May 19, 1982

Date of issuance : September 12, 1984 Date reissued : May 23, 1990, March 21, 1991, July 2, 2004

Date amended : February 24, 1986, April 3, 1986, March 21, 1991

( Signature) Robert G. Mann Manager Boston Aircraft Certification Office

(Title)

FAA Form 8110-2-1(10-69) Page 2 of 2

Number SH288NE

2. In accordance with Fuller Aviation Corporation Drawing 83051, Sheet 1, Revision E, dated December 9, 1987, and Sheet 2, Revision C, dated February 23, 1990, and Routine Installation Instructions for P/N 83051-21 and 83051-22 “Bubble Doors”, dated March 16, 1991. Weight and balance change for the installation is 8.0 pounds at a moment arm of 77.5 inches.