Document ID: chunk:federal_register_of_legislation:F2005L00193:body:0:p1
Version: federal_register_of_legislation:F2005L00193
Segment Type: other
Provision Reference: 
Character Range: 0–3662

AIRWORTHINESS DIRECTIVE
On the effective date specified below, and for the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/LYC/110 and issues the following 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.

Lycoming Piston Engines
AD/LYC/110 Amdt 1  Crane / Lear Romec Rotary Fuel Pump Relief Valve Attachment Screws  3/2005

Applicability:  Textron Lycoming IO-320, LIO-320, IO-360, HIO-360, TIO-360, LTIO- 360, GO-435, GO-480, IGO-480-A1B6, IO-540, IGO-540, AEIO-540, HIO- 540, TIO-540, LTIO-540, TIGO-541, IO-720, and TIO-720 reciprocating engines, with Crane/Lear Romec RG9080, RG9570, and RG17980 series "AN" rotary fuel pumps listed in the following Table:

                Table: Applicable Pump Cross Reference List:
                Lear/Romec Series  Textron Lycoming Part Number (P/N)

                RG9080F2           68262, 68262-85

                RG9080J4A          LW-13909, LW-13909-85

                RG9080J6A          LW-14444, LW-14444-85

                RG9080J7A          LW-13920, LW-13920-85

                RG9080J8A          LW-15740, LW-15740-85

                RG9570K1           62E22288

                RG9570P/P1         LW-19012

                RG17980            74547, 74547-85

                RG17980A           76188, 76188-85

                RG17980D           76486, 76486-85

                RG17980E           77443, 77443-85

                RG17980J           78993, 78993-85

                RG17980K           LW-11166, LW-11166-85

                RG17980P           LW-12534, LW-12534-85

                RG17980U           62D21153, 62D21

                Note 1:  This Airworthiness Directive (AD) is not applicable to modified pumps, series RG 9080, RG 9570 or RG17980 with the "/M" after the part number (P/N). The installation of modified pump constitutes terminating action for the inspection requirements of this AD.
Requirement:       1. Perform initial torque check inspection of pump relief valve attaching screws as per provisions of Lycoming SB 529B. If the torque does not meet the SB specifications, tighten screws to the required torque in accordance with that SB.

                   2. Perform follow-up torque check inspection of pump relief valve attaching screws as per provisions of Lycoming SB 529B. If the torque does not meet the SB specifications, tighten screws to the required torque in accordance with that SB.

                   3. Visually inspect the pump for leakage of fuel in the area of relief valve for the evidence of fuel leakage and loose or missing attachment screws.

                Note 2:  FAA Airworthiness Directive 2003-14-03 refers.
Compliance:        1. Unless accomplished earlier, within 10 hours time-in-service (TIS), or 30 days from the effective date of this AD, whichever occurs first.

                   2. Repetitively, at 55-hour intervals TIS, or 6 months since the previous torque check inspection, whichever occurs first, until the accumulation of 110 hours TIS since the inspection with the torque remaining within the SB specifications.

                   3. Repetitively, at 55 hours intervals