Document ID: chunk:federal_register_of_legislation:F2005L02381:body:0:p2
Version: federal_register_of_legislation:F2005L02381
Segment Type: other
Provision Reference: 
Character Range: 2801–6054

the carburettor in accordance with paragraphs 3B-(a), 3B-(b), or 3B-(c) of this Directive, as applicable:

                     (a) For PAC Model MA-3SPA series carburettors with part numbers (P/N) 10-4894 or 10-4115-1, installed on TCM Model O-200A series engines modified by installing a one-piece venturi, install a new fuel nozzle in accordance with PAC SB MSA-7, dated 30 September 1994.

                     (b) For PAC Model MA-3SPA series carburettors with P/Ns 10-4895, 10-4439, or 10-3237, installed on TCM Model O-300 or C-145 series engines modified by installing a one-piece venturi, install a new fuel nozzle in accordance with PAC SB No. MSA-8, dated 10 July 1995.

                     (c) For PAC Model MA-3SPA series carburettors with P/Ns 10-4240, 10-4252, 10-4252-1, or 10-4457, installed on TCM Model C-75, C-85, or C-90 series engines modified by installing a one-piece venturi, install a new fuel nozzle in accordance with PAC SB No. MSA-9, dated 10 October 1995.

             Note 2:  Model MA-3A, MA-3PA, and MA4-SPA carburettors already utilize the type of nozzles referred to, in the modification requirement 3B hence no further mandatory modifications are available at present.

             Note 3:  Installing a one-piece venturi constitutes terminating action for the repetitive inspection as per requirement 1 of this AD.

             Model MA-3 series carburettors:

                4. Inspect the carburettor to determine if the primary venturi is loose or missing.

                5. If the primary venturi is found loose or missing, repair the carburettor by installing a serviceable two-piece venturi, or replace the entire carburettor with a serviceable carburettor.

             Note 4:  FAA AD 98-01-06 Amendment 39-10270 refers.
Compliance:     1. Unless accomplished earlier, within 50 flight hours or 30 days from the effective date of this Directive, whichever comes first and repetitively thereafter, at each annual or 100-hourly inspection, whichever comes first.

                2. Before further flight, following inspection per requirement 1 of this Directive.

                3. Before further flight.

             Note 5:  If necessary, an entry into the Maintenance Release may be made to facilitate compliance to the Requirement 3.

                4. Unless accomplished earlier, within 50 flight hours or 30 days from the effective date of this Directive, whichever comes first and repetitively thereafter, at each annual or 100-hourly inspection, whichever comes first.

                5. Before further flight, following inspection per requirement 4 of this Directive.
             This Amendment becomes effective on 29 September 2005.
Background:  Disruption of fuel flow to the engine may result in the failure to attain rated power, power loss in flight, and forced landings. This AD addresses the identified unsafe condition associated with the power loss in flight.

             The current Amendment provides further explanation on the AD Requirements.

             Amendment 3 of this Directive clarified the issue of fuel nozzle modifications for the Model MA-3A, MA-3PA, and MA4-SPA carburettors and became effective on 14 April 2005.

             Amendment