Document ID: chunk:federal_register_of_legislation:F2005L02370:body:0:p1
Version: federal_register_of_legislation:F2005L02370
Segment Type: other
Provision Reference: 
Character Range: 0–3141

AIRWORTHINESS DIRECTIVE
For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.001(1) of CASR 1998.  The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.

Robinson R22 Series Helicopters
AD/R22/52  Door and Window Assembly  11/2005 DM

Applicability:  Model R22 series helicopters, modified with a door assembly manufactured by Tech-Tool Plastics, Inc., in accordance with STC No. SR09189RC.
Requirement:       1. Inspect the left-hand and right-hand door assemblies as follows:

                   Visually inspect each pilot and co-pilot door assembly integral frame for a crack in the locations depicted in Figure 1 of this Directive.  If a crack is found, before further flight, replace the cracked door assembly, part number (P/N) R-22-101-51 or P/N R-22-101-53 (left-hand door assembly), or P/N R-22-101-52 or P/N
                   R-22-101-54 (right-hand door assembly), with a serviceable door assembly.  If the above part number door assemblies are used as the replacement, then accomplish the replacement in accordance with Tech-Tool Plastics, Inc., Installation Instructions TTP-1R, Revision A, dated 21 November 1997, and with the sections titled "Door Weather Seal Installation" and "Cotter Pin Installation" in Tech-Tool Plastics, Inc., Service Bulletin (SB) No. TTP2005-01 Revision A, dated 1 February 2005.

                   2. If no crack is found in any door assembly integral frame, accomplish the following:

                     a. Visually inspect the weather seal set in each door assembly to determine if it is serviceable and correctly installed.  If the seal is unserviceable, before further flight, replace it with either the weather seal set, P/N 74418X14L and P/N 74814X12BL, supplied by Tech-Tool Plastics, Inc., in accordance with, the "Door Weather Seal Installation" section of SB No. TTP2005-01 Revision A, or replace it with any other serviceable door weather seal set in accordance with the applicable FAA-approved installation instructions.  If a serviceable weather seal set, P/N 74418X14L and P/N 74814X12BL, is not installed correctly, before further flight, re-install it in accordance with SB No. TTP2005-01 Revision A.  If the incorrectly installed weather seal set is not the weather seal set supplied by Tech-Tool Plastics Inc., before further flight, re-install it in accordance with the applicable FAA-approved installation instructions.

                     b. Visually inspect each door hinge on each door assembly to determine if the cotter pins, P/N MS24665-136, are installed in accordance with the "Cotter Pin Installation" section of SB No. TTP2005-01 Revision