INSTALL MOONEY 201 (M20J) SPINNERS ON EARLIER MODEL MOONEYS

instructions in Supplement Number 2 or Supplement Number 3 of this Drawing List Report (DLR 1005) for Hartzell and McCauley spinners. The rear bulkhead of the Hartzell A-2295 2- Blade and 3-Blade spinners is attached to the rear of the propeller hub instead of the starter ring gear. A kit which includes new longer bolts, washers, and spacers is provided with each new Hartzell A-2295 spinner to accomplish this task. WEIGHT AND BALANCE The change to weight and balance is 2.0 pounds at -32 inches moment arm which equals -64 inch- pounds total moment. For M20F and M20G long-body models, add -5 inches to the moment arm for a total of -37 inches moment arm and -74 inch-pounds of total moment. APPROVAL DATA Make a log book entry and fill out Form 337 and return the aircraft to service. 3 Description of work: (Back of 337) Installed the Mooney 201 (M20J) spinner assembly in accordance with the appropriate Mooney Service Manual, spinner manufacturer's instructions, and instructions provided in ARI Drawing List Report Number 1005, Revision 2, dated July 9, 2001, and the accompanying STC Number SA8659SW dated July 19, 1993, and last amended on February 12,2002. 4 AERO RESOURCES, INCORPORATED DRAWING LIST REPORT NUMBER 1005 INSTALL MOONEY 201 (M20J) SPINNERS ON EARLIER MODEL MOONEYS PARTS LIST PART NUMBER DESCRIPTION NO. REQUIRED STANDARD MOONEY 201 (M20J) SPINNER PARTS - HARTZELL PROPELLERS 940087-501 (MOONEY) or 680031-517 (MOONEY) 680031-027 (MOONEY) 680031-019 (MOONEY) 680031-029 (MOONEY) 680031-037 (MOONEY) 680031-023 (MOONEY) AN4-IIA (MOONEY) AN960-416 (MOONEY) AN363-428 (MOONEY) MS51958-62 (MOONEY) 6515 (MOONEY) MS51958-62 (MOONEY) 6515 (MOONEY) 611005 (ARl) M20-219 (ARI) 601005 (ARl) Hartzell Q- Tip Spinner Assembly Rear Bulkhead Assembly Spinner Dome Spinner Doubler Assembly Forward Bulkhead Assembly Stiffener (S.B. M20-219) Bolts for Rear Bulkhead Washers for Rear Bulkhead Nuts for Rear Bulkhead Screws for Forward Bulkhead Fiber Washers for Forward Bulkhead Screws to Install Spinner Fiber Washers to Install Spinner 6.5 MIL x 0.5 Inch Teflon Tape Mooney Service Bulletin Spinner Shim (As Required) 1 1 2 1 6 12 12 12 6 6 16 16 1 I AR Note 1: (MOONEY) = Mooney Factory Supplied Part (ARI) = Aero Resources, Inc. Supplied Part Note 2: See Supplement #1 (If Applicable) for Installation of Spinner Shims Note 3: See Supplement #2 (If Applicable) for: Mooney 201 (M20J) McCauley D-6504 3-Blade Spinner Installation Note 4: See Supplement #3 (If Applicable) for: Mooney 201 (M20J) Hartzell A-2295-4 3-Blade Spinner Installation Mooney 201 (M20J) Hartzell A-2295-5 2-Blade Spinner Installation 5 AERO RESOURCES, INCORPORATED DRAWING LIST REPORT NUMBER 1005 INSTALL MOONEY 201 (M20J) SPINNERS ON EARLIER MODEL MOONEYS PARTS LIST PART NUMBER DESCRIPTION NO. REQUIRED STANDARD MOONEY 201 (M20J) SPINNER PARTS - MCCAULEY PROPELLERS 680031-501 (MOONEY) or 680031-503 (MOONEY) or 680031-505 (MOONEY) or 680031-515 (MOONEY) or 680031-519 (MOONEY) 680031-017 (MOONEY) 680031-019 (MOONEY) 940003-501 (MOONEY) 680031-011 (MOONEY) 680031-023 (MOONEY) AN4-11 A (MOONEY) AN960-416 (MOONEY) AN363-428 (MOONEY) MS51958-62 (MOONEY) 6515 (MOONEY) MS51958-62 (MOONEY) 6515 (MOONEY) 611005 (ARl) M20-219 (ARI) 601005 (ARI) 621005 (ARI) McCauley Spinner Assembly Rear Bulkhead Assembly Spinner Dome Spinner Doubler Assembly Forward Bulkhead Assembly Stiffener (S.B. M20-219) Bolts for Rear Bulkhead Washers for Rear Bulkhead Nuts for Rear Bulkhead Screws for Forward Bulkhead Fiber Washers for Forward Bulkhead Screws to Install Spinner Fiber Washers to Install Spinner 6.5 MIL x 0.5 Inch Teflon Tape Mooney Service Bulletin Spinner Shim (As Required) 8 MIL x 1 Inch Aluminum Tape 1 1 2 1 6 12 12 12 6 6 16 16 I 1 AR AR Note 1: (MOONEY) = Mooney Factory Supplied Part (ARI) = Aero Resources, Inc. Supplied Part Note 2: See Supplement #1 (If Applicable) for Installation of Spinner Shims Note 3: See Supplement #2 (If Applicable) for: Mooney 201 (M20J) McCauley 0-6504 3-Blade Spinner Installation Note 4: See Supplement #3 (If Applicable) for: Mooney 201 (M20J) Hartzell A-2295-4 3-Blade Spinner Installation Mooney 201 (M20J) Hartzell A-2295-5 2-Blade Spinner Installation 6 AERO RESOURCES, INCORPORATED DRA WING LIST REPORT NUMBER 1005 (SUPPLEMENT #3) INSTALL MOONEY 201 (M20J) 3-BLADE SPINNERS ON EARLIER MOONEYS (HARTZELL A-2295-4 3-BLADE AND A-2295-5 2-BLADE SPINNERS) Eligible on the following Mooney airplane models: All Mooney 201 (M20J) models and Pre-201 models (M20A thru M20G) supported by Hartzell's 3-blade STC SW4529NM and all of the above models that have Hartzell propellers with the HC- C2YK or HC-C2YR hub installed. July 9, 2001. INTRODUCTION The purpose ofthis supplement is to add two new Hartzell spinners, Part Number A-2295-4 and Part Number A-2295-5, to ARI STC Number SA8659SW. Part Number A-2295-4 is a 3-blade spinner supported by Hartzell STC Number SA4529NM and will be used instead of Hartzell Part Number A-2295-1, which is described above in Supplement #2. Hartzell also developed a 2-blade version of this same spinner which is identical in size and has Part Number A-2295-5. The 2-blade version of the spinner fits the Mooney 201 (M20J) and the Pre-20l model Mooneys (M20A thru M20G) which have the 2-blade Hartzell propeller installed. HARTZELL A-2295-4 3-BLADE SPINNER CONVERSION Hartzell designed the A-2295-4 spinner to be almost identical in size to the standard Mooney 201 (M20J) spinner. This new 3-blade spinner is installed in the same manner as the A-2295-1 spinner. This spinner is 14.5 inches in diameter by 19.0 inches long. It comes with a rear bulkhead that attaches to the back of the Hartzell 3-blade propeller hub. The Hartzell 3-blade propeller and spinner STC SA4529NM is eligible on M20C, 0, E, F, G, and J Models. HARTZELL A-2295-5 2-BLADE SPINNER CONVERSION The Hartzell A-2295-5 2-blade spinner is designed to fit the Mooney 201 (M20J) and Pre-20l Mooneys (M20A thru M20G) which are equipped with Hartzell 2-blade propellers that have the HC-C2YK or HC-C2YR hub. The standard Mooney 201 spinner has a rear spinner bulkhead which attaches to the engine starter ring gear. The A-2295-5 spinner comes with a rear bulkhead and installation kit which allows it to be attached to the back of the propeller hub. Consequently, Service Bulletin M20-219 does not apply to this installation. This spinner is the same size as the 3-blade A-2295-4 spinner, 14.5 inches in diameter by 19.0 inches long. COOLING TEST COMPARISON - M20J SPINNER VERSUS HARTZELL SPINNERS In order to certify the Mooney 201 (M20J) 2-blade spinner for use on Pre-20l Mooneys, Aero Resources, Inc. and the FAA conducted cooling tests on Pre-20 1 aircraft with the larger M20J spinner (14.5 inches in diameter by 20.0 inches long) installed. The purpose of the tests was to assure that the larger M20J spinner did not adversely affect engine cooling. The cooling tests were successful in documenting that engine cooling remained within acceptable limits with the larger M20J spinner installed on Pre-20 1 Mooneys. 12 AERO RESOURCES, INCORPORATED DRAWING LIST REPORT NUMBER 1005 (SUPPLEMENT #3) INSTALL MOONEY 201 (M20J) 3-BLADE SPINNERS ON EARLIER MOONEYS (HARTZELL A-2295-4 3-BLADE AND A-2295-5 2-BLADE SPINNERS) COOLING TEST COMPARISON (CONTINUED) The two Hartzell propellers described above (A-2295-4 and A-2295-5) both have the same diameter as the standard M20J 2-blade spinner and are 1.0 inches shorter in length. Consequently, both spinners will present the same obstruction to the flow of ram cooling air entering the engine compartment as the standard M20J spinner. Therefore, the cooling tests already performed with the standard Mooney 201 (M20J) 2-blade spinner should not be significantly altered by the substitution of the A-2295-4 or A-2295-5 spinners manufactured by Hartzell. Conformity inspections were conducted on June 28, 2001, to assure that the A-2295-4 3-blade spinner and the A-2295-5 2-blade spinner are both compatible with the ARI nose cowl modifications on Pre-20 1 Mooneys. INSTALLATION INSTRUCTIONS FOR HARTZELL 2- AND 3-BLADE SPINNERS 1. Remove the existing propeller spinner assembly and rear bulkhead assembly. 2. Install the Mooney 201 (M20J) 3-blade spinner assembly in accordance with the manufacturer's instructions, your Mooney Service Manual, and the applicable instructions on Pages 2 and 3 of this Drawing List Report. Note 1: Steps 1 and 2 require the complete removal and reinstallation of the aircraft propeller. Be sure to follow the manufacturer's instructions and the instructions in your Mooney Service Manual for removal and installation of the propeller. Note 2: The installer must determine from the manufacturer or ARI whether Mooney Service Bulletin M20-219 applies to the installation. WEIGHT AND BALANCE The change to weight and balance is 2.0 pounds at -32 inches moment arm which equals -64 inch- pounds total moment. For M20F and M20G long-body models, add -5 inches to the moment arm for a total of -37 inches moment arm and -74 inch-pounds of total moment. APPROV AL DATA Make a log book entry and fill out Form 337 and return the aircraft to service. Description of work: (Back of 337) Installed Hartzell A-2295-4 (or A-2295-5) spinner assembly in accordance with Hartzell installation instructions and instructions provided in ARI Drawing List Report Number 1005, Revision 2, dated July 9, 2001, and STC Number SA8659SW. 13 SUBJECT: MODELS AFFECTED: COMPLIANCE: INTRODUCTION: PROPELLER SPINNER BULKHEAD INSPECTION AND MODIFICATION M20J SIN's 24-0001 thru 24-0786 As soon as practical within the next 25 hours of operation. In order to prevent the possibility of cracking of the 680031-3 or -17 spinner aft bulkhead assembly around the attachment bolts, the following inspection and modification should be implemented. NOTE: S.B. No. 201, Propeller Spinner Inspection and Modification, should be accomplished in conjunction with this Service Bulletin if not already complied with. : 1. Remove the 680031-7 or -19 propeller spinner. 2. Remove the propeller assembly. 3. Remove (12) AN4-10A bolts attaching 680031-3 or 680031-17 bulkhead assy to the engine ring gear. 4. Inspect 680031-3 or 680031-17 bulkhead assy for cracks; if cracked, replace bulkhead. If no cracks are found, proceed with instal- lation of Service Bulletin stiffeners 680031-23 (6 each as shown in Figure 1). 5. Reinstall propeller and spinner removed per Steps 1 and 2 with existing hardware. (Torque all bolts to specified torque. AN4~11A 50 to 70 in-lbs., prop attach bolts 55 to 65 ft-lbs., and kpinner screws 30 in-lbs. ±5 in-lbs.t~ CAUTION: The forward spinner bulkhead should have a snug fit on the propeller dome. Install 6.5 HIL x .50 wide "Scotch Brand" No. 549 pressure sensitive tape, mfg. by 3M Co., St. Paul, Minnesota, on propeller dome as required to provide a snug hand press fit. 6. Make appropriate log book entry and fill out and return compliance card. SERVICE BULLETIN KIT NO. M20-219-1 680031-23 Stiffeners- . AN4-11A Bolt •......• . 6 ea. . 12 ea. mN .-. N\j.4 I 0oNN A Q) • t7I o to Zt:l; .I:Q .en 680031-23 Stiffener (TYP 6 PLCS) 680031-3 or 680031-11 Spinner Bulkhead Assy Section A-A AN4-11A Bolt AN960-416 Washer AN363-428 Nut (TYP 12 PLCS) ." Figure 1 Bulkh~d Assy AERO RESOURCES, INCORPORATED DRAWING LIST REPORT NUMBER 1005 (SUPPLEMENT #1) SPINNER SHIM FOR ARI NOSE COWL (1958-1978 M20A, B, C, D, E, F, & G) Eligible on the following Mooney Airplane Models: M20A, M20B, M20C, M20D, M20E, M20F, and M20G through 1978. Revised May 20, 1997. INTRODUCTION Due to the variation in propeller installations on the above aircraft, it is sometimes necessary to provide additional clearance between the propeller, the M20J spinner assembly and the Aero Resources, Inc. (ARI) nose cowl installation. This is particularly true of Mooneys equipped with earlier model McCauley propellers. The lI8-inch thick ARI spinner shim described below is designed to fit between the rear spinner bulkhead and the engine starter ring gear. The number of shims that can be used is limited by the contact area between the front spinner bulkhead and the propeller dome. The spinner must be thoroughly supported by the front spinner bulkhead and propeller dome to prevent cracking of the rear bulkhead assembly. These spinner shims also make it possible to install the Mooney 201 (M20J) Hartzell spinner assembly (PIN 940087-501), on earlier model Mooneys with McCauley propellers. Hartzell propeller installations thus far have not required any shims for the spinner and propeller to fit properly with the nose cowl. Therefore, shims will not initially be shipped to owners of Hartzell equipped Mooneys unless requested. INSTALLATION INSTRUCTIONS 1. Remove the existing spinner dome from the aircraft and set it aside. 2. Remove the Mooney 201 (M20J) Hartzell or McCauley spinner assembly from the shipping carton. Detach the M20J spinner from the rear bulkhead and slide the spinner over the aircraft propeller until the front edge of the propeller cut-outs on the spinner dome come to within ~ - inch of the propeller blades. The propeller dome should extend all the way through the front spinner bulkhead. If the propeller dome does not extend through the front spinner bulkhead, then the propeller will not properly support the spinner, and ARI should be contacted for an alternate spinner or to arrange for the return of the kit for a refund. Note 1: In order to assure a snug fit between the front spinner bulkhead and the propeller dome on Mooney 201 (M20J) spinner installations, Mooney Service Bulletin M20-219 specifies the use of 6.5 MIL x .50 inch wide "Scotch Brand" No. 549 pressure sensitive Teflon tape around the propeller dome. ARI supplies this tape as part of the installation kit (PIN 611005). 7 AERO RESOURCES, INCORPORATED DRAWING LIST REPORT NUMBER 1005 (SUPPLEMENT #1) SPINNER SHIM FOR ARI NOSE COWL (1958-1978 M20A, B, C, D, E, F, & G) INSTALLATION INSTRUCTIONS (CONTINUED) Note 2: In some earlier model propeller installations, the gap between the Mooney 201 (M20J) front spinner bulkhead and the propeller dome may be as large as 0.25 inch, and the use of the Teflon tape alone is not practical. To close this larger gap, ARI supplies 8 MIL x 1 inch aluminum adhesive tape (PIN 621005). The aluminum tape should be wrapped around the propeller dome until the gap is filled to within a few thousandths of a snug fit. Then the Teflon tape should be wrapped on top of the aluminum tape to accomplish a snug fit. The Teflon tape is used to fill the gap in order to avoid metal to metal friction between the propeller dome and the front spinner bulkhead. The addition of this aluminum tape may be necessary for some earlier model McCauley installations. 3. Our initial experience indicates that about four (4) shims will be required to install the M20J spinner on earlier model McCauley equipped Mooneys. The following measurements will determine the exact number of shims required: a) With the existing spinner dome removed and before removing the propeller to install the new spinner assembly, measure and record the distances from the starter ring gear to the front edge of each propeller blade where it extends through the spinner. b) Take the M20J spinner with the rear bulkhead attached and before it is installed, and place it on a flat surface with the spinner pointing upward. Measure and record the distances from the flat surface to the front edge of each spinner cut-out where the propeller blade extends through the spinner. c) Subtract the average of the distances measured in Step 3a from the average of the distances measured in Step 3b. The difference between these measurements should be NO LESS THAN +0.155 inch, plus or minus 0.03 inch, in order to provide proper clearance for the propeller blades. 4. If the difference measured in Step 3c is LESS than +0.155 inch, plus or minus 0.03 inch, then 1/8 -inch shims should be added until the difference measured in step 3c is at least +0.155 inch, plus or minus 0.03 inch. 5. The twelve (12) AN4-11A, 1 and lI8-inch bolts supplied with Service Bulletin M20-219 will have to be changed to accommodate the shims that may be added as follows: 8 AERO RESOURCES, INCORPORATED DRAWING LIST REPORT NUMBER 1005 (SUPPLEMENT #1) SPINNER SHIM FOR ARI NOSE COWL (1958-1978 M20A, B, C, D, E, F, & G) INSTALLATION INSTRUCTIONS (CONTINUED) NO. SHIMS 1 2 3 4 5 6 HOLT PIN AN4-12A AN4-13A AN4-14A AN4-15A AN4-16A AN4-17A HOL T LENGTH 1 AND 1/4 INCH 1 AND 3/8 INCH 1 AND 1/2 INCH 1 AND 5/8 INCH 1 AND 3/4 INCH 1 AND 7/8 INCH 6. Install the rear bulkhead and spinner assemblies in accordance with the instructions on Pages 1 and 2 of this report (D LR # 1005), except insert the required number of shims between the starter ring gear and the rear spinner bulkhead assembly. Add 0.525 pounds for each shim, which includes the additional weight of the longer bolts. The installer must replace the standard AN4- 11A bolts with the proper bolts for the number of shims used. WEIGHT AND BALANCE This change in weight and balance assumes four (4) shims with AN4-15A bolts for a total weight increase of2.1 pounds at -18 moment arm which equals -38 inch-pounds total moment. For M20F and M20G long-body models, add -5 inches to the moment arm for a total of -23 moment arm and a total of -48 inch-pounds moment. This will make the net additional weight of the M20J spinner modification including shims 4.1 pounds at -24.9 inches moment arm which equals -102 inch- pounds total moment. For M20F and M20G long-body models, add -5 inches to the moment arm for a total of -29.9 inches moment arm and -123 inch-pounds total moment. 9 FRONT VIEW SIDE VIEW o o IVOr6.1: '1'IMS S',J/IJ6L ~,1I111. IS OR'<;AE'D "f!) ,.'T 6er",,~ T1f6 M?-O;rU;,.,. ","",ee.. &ulJCtn-O AtIDT~ c""N~ ST/I",TfJI. ~''''4 ,,~~ TO AD1VST -rH6 C.&.e1IM••••GIr ~~ 1ft' S".fI~ "ND'1'1/6 ,,,..,~ AND AC.' "',," CoO"," 11100. "OT~:1: T'l1C' NV"'fleA. Of" 'H,,'" ~fiGltllj(R IS ~1,/VC1)"Y TlfS (.L£itC.""'" ~1'Qe1) ""0 " L.Il1trn !>V 1'~ c.D1JT1t<-TH-Cff W~ T,r ~N'" s"NNe1C. Mt..K./lQfO otNP m.- re,oft!1.<,.G!t. ~O"'e": S~e' fJ/.AWINt;LI,r ftl.fOlf.7' NO. IQOS". "'ore,: '1'1/;-"T'Wb"-V. (".., """*-"~,'"'-II/C.H SOL.n sv,""'.JI!O m/l rH6' sau,c.1I' ,1fU,.TlAI M~-;L/' 1<17 1II1C.1..UV~ TO.6 CA,"'l,fiD TO ACCO""'''II''re- -rNg sJlI/lfS .,.,,,-r UV 6c ADOED. SErK p,",a 5' C': D~I/VGo L,s,. It~, NO. /OO$" Po"- ~ SCJH:p{J/...G" CP 6()('T ",e~. NtJ"nr .,.: ~ft(# -Sill"', ,tt.~IIIc, Wl1'll 7'~ A'oIlI'T>ONAC.. L.~T?I- ~ Cot.TS "'~fI/~6T), 1II11.e.. Wf;/fitl ~fPU'l.IMItT'f1I-Y 0.5' "n. I•••• P-"..eG.L.eL"Jt:CJ~ ••• C - ~~ , pA •..,. ,., ""."6 o")r:' v.•• "~IJ or ICI< 1100 ~ ALvlf4I1/ClI'II '''u>'f. •...,. "11 1:: , 'H O,DIO 'C:ON~rR/CIT N ,"FTP";( I:' I/'Ii "',T _ .CIO tAN N "'/01'1' r.. NFTS 0 •• IIF Hr I "I.,NC>( "'1i0 Till!: "/..IIr'NG~ SJ!'~~~/N"I( Iff!' rlll6"LVIO (/>.) I - ~T A /0 ~/_-'N'GII t!O"T G",r;::g: .. ,,«' UJ"'."o-U 01' c..oN c...c,....b ~y VSIA/t; TffE f'It-:J-DT 5PIIM.lnf... .1i1t1C..'"'''I..!C.Un.n i1" P.oTT .• UOL., iJ'JC-Mr,oI4lS •• .cc.. ~ o.C>lO 'Nt:-~. .. AERO RESO~E;$, It,JC. w~p --"SPINNER Shllt.I FRONT AND S/DE VIEWS 1"'i'Oo!> AERO RESOURCES, INCORPORATED DRAWING LIST REPORT NUMBER 1005 (SUPPLEMENT #2) INSTALL MOONEY 201 (M20J) 3-BLADE SPINNERS ON EARLIER MOONEYS (HARTZELL A-2295-1 AND MCCAULEY D-6504 SPINNERS) Eligible on the following Mooney Airplane Models: All Pre-201 (M20J) Models supported by M20J 3-blade propeller STC's. May 20, 1997. INTRODUCTION The manufacturers of Hartzell and McCauley Propeller have obtained STC's to install a 3-blade propeller on Mooney 201 (M20J) and earlier model Mooneys instead of the standard 2-blade propeller. The purpose of this supplement is to allow the Mooney 201 (M20J) 3-blade spinner to be installed on those Pre-201 Mooneys which have received STC's for the Hartzell and McCauley 3- blade propellers. HARTZELL A-2295-1 3-BLADE PROPELLER CONVERSION Hartzell STC Number SA4529NM provides for the installation of Hartzell 3-blade propeller Part Number HC-C3YR-IRF/F7282 on M20C, D, E, F, G and J Models of Mooney aircraft. The spinner that Hartzell initially used with the M20J 3-blade conversion was Part Number A-2295-1. The diameter of the A-2295-1 spinner is 13.75 inches by approximately 17.0 inches long. The standard 2-blade spinners used on Pre-201 Mooneys are 12.75 inches in diameter by approximately 13.25 to 15.0 inches long. The standard Mooney 201 (M20J) 2-blade spinner is 14.5 inches in diameter by 20.0 inches long. Service Bulletin M20-219 does not apply to the Hartzell installation. MCCAULEY D-6504 3-BLADE PROPELLER CONVERSION McCauley STC Number SA315CH provides for the installation of a McCauley 3-blade propeller on M20A, B, C, D, E, F, G and J aircraft. McCauley uses 3-blade propeller Part Number P4247151-02 on the M20A, B, C, D, and G aircraft and 3-blade propeller Part Number P4247151-01 on the Mooney M20E, F, and J aircraft. McCauley 3-blade spinner Part Number D-6504 is used on the Mooney 201 (M20J) 3-blade propeller conversion. The diameter of the McCauley D-6504 3-blade spinner is 14.44 inches by 19.19 inches long. Service Bulletin M20-219 applies to the McCauley installation. COOLING TEST COMPARISON BETWEEN 2-BLADE AND 3-BLADE SPINNERS In order to certify the Mooney 201 (M20J) 2-blade spinner for use on Pre-201 Mooneys, Aero Resources, Inc. and the FAA conducted cooling tests on Pre-201 aircraft with the larger M20J spinner (14.5 inches in diameter by 20.0 inches long) installed. The purpose of the tests was to assure that the larger M20J spinner did not adversely affect engine cooling. The cooling tests were successful in documenting that engine cooling remained within acceptable limits with the larger M20J spinner installed on Pre-20 1 Mooneys. 10 AERO RESOURCES, INCORPORATED DRAWING LIST REPORT NUMBER 1005 (Supplement #2) INSTALL MOONEY 201 (M20J) 3-BLADE SPINNERS ON EARLIER MOONEYS (HARTZELL A-2295-1 AND MCCAULEY D-6504 SPINNERS) COOLING TEST COMPARISON (CONTINUED) The M20J 3-blade spinners supplied by the above manufacturers both have slightly smaller diameters than the standard M20J 2-blade spinner and are 1.0 to 3.0 inches shorter in length. Consequently, both spinners will present less obstruction to the flow of ram cooling air entering the engine compartment than the standard 2-blade M20J spinner. Therefore, the cooling tests already performed with the larger M20J 2-blade spinner should not be significantly altered by the substitution of the M20J 3-blade spinners supplied by the above manufacturers. INSTALLATION INSTRUCTIONS 1. Remove the existing propeller spinner assembly and rear bulkhead assembly. 2. Install the Mooney 201 (M20J) 3-blade spinner assembly in accordance with the manufacturer's instructions, your Mooney Service Manual, and the applicable instructions on Pages 2 and 3 of this Drawing List Report. Note 1: Steps 1 and 2 require the complete removal and reinstallation of the aircraft propeller. Be sure to follow the manufacturer's instructions and the instructions in your Mooney Service Manual for removal and installation of the propeller. Note 2: The installer must determine from the manufacturer or ARI whether Mooney Service Bulletin M20-219 applies to the installation. WEIGHT AND BALANCE Follow the weight and balance instructions on Page 3 of this report and the instructions supplied by the propeller manufacturer. The change in weight between the 2-blade spinner and 3-blade spinner will be negligible. APPROVAL DATA Follow the approval data instructions on Page 3 of this report and the instructions supplied by the propeller manufacturer, except substitute the appropriate spinner designation and manufacturer's instructions. 11