PIPER PA-24/30/39 ARAPAHO WING TIPS STC#SA1153SW

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PIPER PA-24/30/39 ARAPAHO WING TIPS STC#SA1153SW Knots 2U, Ltd. 709 Airport Road Burlington, WI 53105 262 763-5100 fax 262 763-5125 Arapaho Wing Tips APPLICABLE MODELS PIPER PA-24, PA-24-250, PA-24-260, PA-24-400 PA-30, PA-39 K N O T S 2 U , L T D . 709 AIRPORT ROAD BURLINGTON, WI 53105 262 763-5100 I S S U E D A T E 08/04/99 REV # DATE EFFECT PIPER PA-24/30/39 ARAPAHO WING TIPS STC#SA1153SW Knots 2U, Ltd. 709 Airport Road Burlington, WI 53105 262 763-5100 fax 262 763-5125 TABLE OF CONTENTS Section 1.0 Removal of old Wing Tips and lights. 1 1.1 Locating and drilling holes on left Wing Tip. 1 1.2 Mounting Navigation and/or Strobe lights. 1 1.3 Final installation of Wing Tip. 1 1.4 Right side installation. 1 1.5 Paperwork. 1 1.6 Parts List. 1 1.7 Detail # 1. 2 1.8 Maintenance Manual. 3 1.9 Supplemental Type Certificate. 4 & 5 PIPER PA-24/30/39 ARAPAHO WING TIPS STC#SA1153SW Knots 2U, Ltd. 709 Airport Road Burlington, WI 53105 262 763-5100 fax 262 763-5125 This manual describes the installation of the Knots 2U Arapaho Wing Tips for all Comanche Aircraft. If necessary, the appropriate Piper Service Manual should be used in conjunction with this manual. The best time to paint the Wing Tips is after the holes are drilled and before final installation. Fiberglass surfaces should be scuffed slightly with a Scotch-Brite or fine sand paper, cleaned thoroughly, and painted. Most approved nav or strobe light assemblies fit into the leading edge of the Wing Tip. Wing Tips allow room for up to two nav lights and a strobe light. Section 1.0 Removal of old Wing Tips and lights. Remove existing Wing Tips. Retain existing Tinnerman U-type nut plates for re-installation of new tips. Disconnect any wires leading to the existing nav/strobe lights. Save existing nav/strobe assemblies for installation in new Wing Tips if desired. Section 1.1 Locating and drilling holes on left Wing Tip. Using a straight edge, mark all hole locations from center of hole 2” inboard onto wing. Referencing Detail #1 place left Wing Tip P/N 2500-3 in its proper location. With Wing Tip held firmly in place, transfer marks back onto Wing Tip and mark hole locations. For optimum fit, a hole finder should not be used for this procedure. Drill holes in Wing Tip to a #40 hole size and confirm proper location of all holes. Enlarge holes to a #15 hole size and countersink to fit the countersunk washer P/N DW06SS. Section 1.2 Mounting Navigation and/or Strobe lights. Referencing Detail #1, locate and mount nav/strobe assemblies. Installation may consist of; a) Navigation Light, b) combination Navigation and Strobe light, or c) two Navigation lights and a Strobe light. Confirm at least 1/16” clearance between light(s) and lens. Make sure all wiring conforms to AC43.13-1A Chapter 11 and light manufacturers installation instructions. Re-attach wires and check light(s) for proper operation. Section 1.3 Final installation of Wing Tip. Install Wing Tip using existing U-type Tinnerman nut plates, (19) P/N DW06SS washers, and (19) 6R X ½ FAS screws. Check clearance from aileron travel and operation of light(s). Section 1.4 Right side installation. Repeat steps 1.0 thru 1.3 on right side of aircraft. Section 1.5 Paperwork. Perform paperwork (337 and logbook entry). Place KNOTS 2U Maintenance Manual and Supplemental Type Certificate with logbooks. Weight and Balance change = Negligible* *Weight and balance must be calculated if any changes are made to the lighting system. Section 1.6 Parts List. Part Number Qty. Description 2500-3 1 Left Wing Tip 2500-4 1 Right Wing Tip 2500-5 1 Left Wing Tip Lens 2500-6 1 Right Wing Tip Lens 6R X ½ FAS 38 #6 SS Sheet Metal Screw C/S 100 Degrees DWO6SS 46 #6 SS Tinnerman Washer C/S 100 Degrees MS24693-C28 8 #6 SS Machine Screw C/S 100 Degrees Page –1- PA-24/30/39 WINGTIP INSTALLATION ----r -----7- -END OF WING SKIN. TOP VIEW P /N 2500-3 LEFT WING TIP. RIGHT SIDE P /N 2500-4 OPPOSITE.. USE DW06SS WASHERS (19) REQ. MS24693-C28 SCREWS, (19 REQ) AND EXISTING ''U' I TYPE TINNERMAN NUTS TO ATTACH WINGTIPS DETAIL #1 EDGE SHOULD BE PARRALLEL TO EXISTING TIP RIB. FAA, APPROVEp· .---OPTIONAL STROBE LIGHT ASSY. S~:P. 7 1999 OR ADDITIONAL NAV LIGHT. 11 Q II SIDE VIEW LEFT WING NAV LIGHT, OR NAV /STROBE PIGGYBACK 0 TRIM EXISTING NA V LIGHT ASSY OR WING TIP TO FIT IF STROBE LIGHT OPTION IS CHOOSEN, INST ALL PER MFR. INSTRUCTIONS. DETAIL #1 PAGE 2 DATE REVISION '4z-4a -t'6 c CHI AGO AIRCRAFT ..~~11f"'cATION OFFICfl l~'-'IENt'RAL REGlOJj PIPER PA-24/30/39 ARAPAHO WING TIPS STC#SA1153SW Knots 2U, Ltd. 709 Airport Road Burlington, WI 53105 262 763-5100 fax 262 763-5125 Section 1.8 Maintenance Manual. KNOTS 2U, LTD. 703 Airport Road Burlington, WI 53105 414 763-5100 Piper PA-24 / 30 / 39 Arapaho Wing Tips. 1. Before each flight, inspect the Wing Tips for loose screws and proper fit. 2. Upon each annual or 100 hour inspection, inspect the Wing Tips for proper fit, loose screws, cracks, or separated plies of fiberglass. Check condition of lens for transparency. 3. If any of the above discrepancies are found; repair using proper techniques and procedures as outlined in AC 43.13-1A & 2. If lens is discolored or has lost its transparency it must be replaced. Lens may be cleaned with any cleaner approved for Acrylic. 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