Airworthiness Directive Schedule Aeroplanes Cessna 170 Series

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Issued 30 June 2011 Page 1 of 5 CAA of NZ Airworthiness Directive Schedule Aeroplanes Cessna 170 Series 30 June 2011 Notes 1. This AD schedule is applicable to Cessna 170A and 170B series aircraft manufactured under FAA Type Certificate No. A-799. 2. The Federal Aviation Administration (FAA) is the National Airworthiness Authority (NAA) responsible for the issue of State of Design Airworthiness Directives (ADs) for these aircraft. State of Design ADs can be obtained directly from the FAA website at: Dynamic Regulatory System (faa.gov) 3. The date above indicates the amendment date of this schedule. 4. New or amended ADs are shown with an asterisk * Contents DCA/CESS170/101 Narco Model 300 Position Light Flasher - Modification ..................................................... 2 DCA/CESS170/102 Cancelled .......................................................................................................................... 2 DCA/CESS170/103 Cancelled .......................................................................................................................... 2 DCA/CESS170/104 Windshield Cracking - Inspection ...................................................................................... 2 DCA/CESS170/105 Mainplane Rear Spar - Inspection ..................................................................................... 2 DCA/CESS170/106 Javelin Auxiliary Fuel System - Modification ..................................................................... 3 DCA/CESS170/107 Fuel Cap - Modification ..................................................................................................... 3 DCA/CESS170/108 Electrical System - Modification ........................................................................................ 3 * DCA/CESS170/109 Cancelled – DCA/CESS170/112 refers ............................................................................. 3 DCA/CESS170/110 Fuel Selector Valve Cam - Replacement .......................................................................... 4 DCA/CESS170/111 Shoulder Harness – Inspection & Modification.................................................................. 4 * DCA/CESS170/112 Seat Adjustment Mechanism – Inspection and Replacement ........................................... 5 Aeroplanes Cessna 170 Series Issued 30 June 2011 Page 2 of 5 CAA of NZ DCA/CESS170/101 Narco Model 300 Position Light Flasher - Modification Applicability: Model 170 Series S/N 25373 through 27169 that incorporate a Narco flasher model 300 in the lighting system Requirement: Comply with Cessna SL 180/182-41-1 (FAA AD 59-10-03 refers) Compliance: By 1 September 1959 DCA/CESS170/102 Cancelled DCA/CESS170/103 Cancelled DCA/CESS170/104 Windshield Cracking - Inspection Applicability: All model 170 Series not fitted with Rural Aviation mod. RA 63 or approved equivalent Requirement: To minimise the possibility of windshield failure the following inspections are required: 1. Examine the rivets attaching the ends of the windshield outer centre strip to the fuselage and cabin top. Ensure there is adequate landing between the rivet holes and the edge of the strip. Defective rivets must be replaced and strips with inadequate landing or cracks must be repaired or replaced. 2. Examine the edges of the windshield for cracks and signs of chafing. Ensure that all felt rubbing strips are fitted correctly and have not deteriorated, particularly where the windshield is in contact with the wing root fairings. 3. The windshield is designed with floating edge supports. Inspect these supports for the presence of sealing compounds or deteriorated or badly fitted rubbing strips which may prevent free floating of the windshield. Any such defect must be rectified. Compliance: Every 100 hours TIS Effective Date: 31 August 1958 DCA/CESS170/105 Mainplane Rear Spar - Inspection Applicability: All model 170 Series Requirement: 1. Examine each mainplane rear spar for cracks in the area of the root attachment fitting. Cracking originates around the spar web radius below the root end fitting, and may extend to the spar upper flange at the outboard end of the root fitting where the reinforcing angle is joggled. 2. The rear spar web may be examined after the wing root lower fairings are removed. If a crack is present it may be obscured by the root ribs and the spar root end fittings. Careful inspection should be made of the inboard edge and radius of the spar web visible below the root fittings and inboard of the root ribs. The edge of the rear spar upper flange should be inspected through the inboard inspection hole behind the rear spar. Where doubt exists, the trailing edge root end rib shall be removed to permit a more detailed inspection. Compliance: Every 100 hours TIS and immediately following any case of mainplane damage or groundlooping Effective Date: 31 May 1960 Aeroplanes Cessna 170 Series Issued 30 June 2011 Page 3 of 5 CAA of NZ DCA/CESS170/106 Javelin Auxiliary Fuel System - Modification Applicability: All model 170 Series equipped with Javelin auxiliary fuel system Requirement: Comply with Cessna SESL SE 69-24 (FAA AD 73-17-01 refers) Compliance: Within the next 100 hours TIS Effective Date: 30 September 1973 DCA/CESS170/107 Fuel Cap - Modification Applicability: Model 170 Series S/N 18729 through 27169 Requirement: Fit vented fuel cap per Cessna SEB 92-27 (FAA AD 79-10-14R1 refers) Compliance: Within next 100 hours TIS unless already accomplished Effective Date: 20 April 1979 DCA/CESS170/108 Electrical System - Modification Applicability: Model 170 Series S/N 18000 through 20099 and 25000 through 27169 Requirement: To prevent inflight electrical system failure, smoke in cockpit and/or fire in wire bundle behind instrument panel, accomplish the following: Disconnect at ammeter or electrical system bus, as applicable, wire which connects bus to cigar lighter receptacle (wire is connected to either the bus side, or equipment