SERVICE BULLETIN M20-324
Mooney M20R Ovation · Service Bulletins
Overview
This Service Bulletin M20-324, dated May 26, 2017, addresses the inspection of the lower spar cap doubler rivets for specific Mooney aircraft models, including the M20R Ovation. The bulletin outlines a one-time inspection that must be completed within the next 200 flight hours to ensure the integrity of the rivets, which may have been improperly installed during assembly. The document provides detailed instructions for preparing the aircraft for inspection, the inspection process itself, and the necessary repairs if any issues are found. It is crucial for owners and maintenance personnel to follow the outlined procedures to maintain safety and compliance with FAA regulations.
- One-time inspection required within 200 flight hours.
- Affected models include M20M, M20R, and M20TN.
- Inspect lower spar cap doubler rivets for proper installation.
- Use specified rivet sizes: #4 MS20426AD4 and #5 MS20426AD5.
- Contact Mooney Customer Support for assistance with oversized rivets.
Document
Source
Originally published by mooney.com. Sprinkle hosts a reference copy with an added summary, specifications and searchable full text.
Document details
- Type
- Service Bulletins
- Year
- 2017
- Pages
- 9
- File size
- 609 KB
- Publisher
- mooney.com
Common. Rarer than 17% of the aircraft models we track.
Most owners only have the POH. Here's the essential set for the Mooney M20R Ovation.
- Pilot's Operating Handbook / AFM
- Checklist
- Maintenance Manual
- Parts Catalog (IPC)
- Systems & Wiring
- Service Bulletins
- Type Certificate (TCDS)
Free — save the MOONEY M20R Ovation to your watchlist and track it in one place.
More Mooney M20R Ovationmanuals & documents
See all 24 →- SERVICE BULLETIN M20-344AEmergency Procedures
- Airworthiness Directive Schedule Aeroplanes Mooney M20 SeriesService Bulletins
- SERVICE BULLETIN M20-341AService Bulletins
- SERVICE INSTRUCTION SIM20-133Weight And Balance
- Comment-Response Document 2015-08Airworthiness Directives
- 2015 Mooney M20R Ovation 3Systems Description
- Garmin G1000 Pilot’s Guide for the Mooney M20M/M20R/M20TNChecklist
- SERVICE BULLETIN M20-318Service Bulletins
- Silent KillerAirworthiness Directives
- Silent KillerAirworthiness Directives
- Type Acceptance Report TAR 96/04 – Mooney M20 SeriesOther Documents
- SERVICE BULLETIN M20-307BChecklist
If you fly the Mooney M20R Ovation, you may also be researching these.
In this document
Introduction
Mooney International Corporation has identified a potential issue with the installation of lower doubler rivets in the M20R Ovation and other models. This bulletin mandates a one-time inspection to verify proper installation and provides guidance for any necessary repairs.
Inspection Compliance
The inspection must be completed within the next 200 flight hours. Aircraft owners are encouraged to schedule inspections at the Mooney Factory Service Center or with a certified Mooney field service team.
Preparation for Inspection
Before starting the inspection, the aircraft must be prepared by installing wing jacks, draining fuel, and removing necessary interior components to access the lower spar cap doubler.
Inspection Steps
The inspection involves removing rivets, checking for damage around rivet holes, and verifying rivet sizes. If any damage is found, appropriate repairs must be made using specified rivet sizes.
Warranty and Contact Information
Mooney International Corporation will perform inspections and repairs at their service center. For any questions or to schedule an inspection, contact Mooney's Factory Support.
Safety notes
- Ensure all foreign object debris (FOD) is removed from the fuel tank area during inspection.
- Follow FAA AC43.13-2B guidelines for all riveting procedures.
Full document text
SERVICE BULLETIN SERVICE BULLETIN M20-324 Revision “A” Date: May 26, 2017 THIS BULLETIN IS FAA APPROVED FOR ENGINEERING DESIGN MOONEY INTERNATIONAL 165 Al Mooney Road North Kerrville, Texas 78028 CORPORATION MOONEY INTERNATIONAL CORPORATION 165 Al Mooney Road North, Kerrville, Texas 78028 tel: 830-896-6000 www.mooney.com Page 1 of 9 SUBJECT: M20M, M20R and M20TN Lower Spar Cap Doubler Inspection MODELS/ SN Mooney Aircraft M20M Bravo Serial Number 27-0222 AFFECTED: Mooney Aircraft M20R Ovation Serial Numbers 29-0523 thru 29-0525 Mooney Aircraft M20TN Acclaim Serial Numbers 31-0140 and 31-0141 TIME OF ONE-TIME INSPECTION WITHIN NEXT 200 FLIGHT HOURS COMPLIANCE: INTRODUCTION: Mooney International Corporation has determined the possibility of improper installation of the lower doubler (spar cap) rivets during assembly. This will require a 1- Time inspection and repair (if found incorrect) for the affected aircraft. The inspection is to determine if improper riveting/technique may have been used during the manufacture of these components. To facilitate aircraft inspection and possible repair in accordance with Mooney International Corporation SB M20-324, aircraft will be scheduled into the Mooney Factory Service Center over the next few weeks. Inspection in accordance with this Service Bulletin shall be per- formed at the Mooney Factory Service Center or by a Mooney special field service team. This Service Bulletin is to provide instructions for inspecting the specific areas where this may be present to determine whether the correct procedure was used and to provide instructions on replacing the rivets and/or doubler if it is found to be incorrect. The attached compliance card needs to be filled out and returned to Mooney International Corporation upon completion of this Service Bulletin M20-324. INSTRUCTIONS: Read entire procedures before beginning work. STEP1 - PREPARING AIRCRAFT FOR INSPECTION: NOTE: All work to be done in accordance with FAA AC43.13- 2B. 1.1. Install wing jack points in tie down mounting holes outboard of each main landing gear. Install Nose Landing Gear jack point into receptacle (located under the cowling (at Fuselage Station -5.51) - Refer to applicable Service and Maintenance Manual. 1.2. Place jacks under LH/RH wing (1 on each side at hoist point) and lift airplane off ground. 1.3. Completely drain all fuel from tanks (See Section 28 of the applicable Service and Mainte- nance Manual). Fuel drains are installed at aft, inboard corners of each wing tank and on gascolator, the lowest point in the fuel system. Tank drains are recessed and spring loaded closed. Check the tank drain valves after each use to verify the O-ring is properly sealed when the spring loaded valve is closed. 1.4. If Aircraft does not have TKS - Go to Step 2-1 1.5. If Aircraft has TKS - Remove Interior - Refer to the applicable Service and Maintenance Man- ual for more detailed information removing seats, and Optional airbag restraints. 1.6. The pilot and co-pilot seats are removed by removing MS27039-0818 Screws, MS21042-8 Nuts and 140188-001 Bushings and 140339-001 Stops (bag and identify bushings for re- assembly) forward and aft; push seat forward to lift up front of seat structure, then aft to lift up rear rollers of seat structure. 1.7. Loosen pilot side upper interior panel and retaining screws, to allow lower panel removal. 1.8. Remove front and rear seats. Remove the two inspection plates under rear seat area. SERVICE BULLETIN SERVICE BULLETIN M20-324 Revision “A” Date: May 26, 2017 THIS BULLETIN IS FAA APPROVED FOR ENGINEERING DESIGN MOONEY INTERNATIONAL 165 Al Mooney Road North Kerrville, Texas 78028 CORPORATION MOONEY INTERNATIONAL CORPORATION 165 Al Mooney Road North, Kerrville, Texas 78028 tel: 830-896-6000 www.mooney.com Page 2 of 9 1.9. Loosen co-pilot side upper interior panel retaining screws, to allow lower panel removal. 1.10. Remove co-pilot side lower interior panel and mounting screws, and lift up and out. 1.11. Remove rear seat to gain access to the rear seat pan (two inspection plates), drill out rivets and remove pan as required as shown in Figures SB M20-324-1. 1.12. Remove clevis pin on seat adjustment and remove the rear seat adjustment rods. 1.13. Drain TKS tanks from underneath aircraft, and disconnect line(s) as required, to remove LH tank, upper rubber gasket and bottom foam pad, refer to the AS&T TKS Installation guide. 1.14. Now you should have access to lower spar cap doubler hardware - Proceed to Step 2 STEP 2 - INSPECTING THE EXISTING SPAR CAP DOUBLER RIVET HOLES: CAUTION: CARE WHEN REMOVING RIVETS FROM AIRCRAFT NOT TO ALLOW ANY FOREIGN OBJECT DEBRIS (FOD) TO ENTER FUEL TANK AREA. REMOVE ANY SHAVINGS OR DEBRIS FROM FUEL TANK AREA WITH A SUITABLE AIR VACUUM AND ACETONE WIPE SOLVENT. 2.1. Remove upper and lower wing access panels as shown in Figures SB M20-324-2 and M20-324-3. 2.2. With the aircraft on jacks, the landing gear can now be raised slightly to remove inner gear door assembly. 2.3. Drill rivets to remove inner main landing gear door(s) and stiffener assembly, keep safe for reassembly. 2.4. Remove lower wing root fairings by drilling rivets out and any remove any aluminum tape as shown in Figures SB M20-324-2 and M20-324-3. 2.5. The next steps will be completed in 2 sequence steps, to keep components stationary and prevent misalignment of the assembled parts. 2.6. Sequence #1 - mark every other rivet with a visible marker. Remove rivets, and any tank seal- er from around and undercut rivet heads by drilling. Use a drill of the same size as the diameter of the rivet. Drilling must be exactly centered and to the base of the head only. After drilling, break off the head with a beveled pin punch and carefully drive out the shank, to Wing Station 59.25 (both sides), as shown in Figures SB M20-324-3, SB M20-324-4 and M20-324-5. 2.7. Inspect for any chipping or damage around hole(s) as shown in Figure SB M20-324-7.
Show full textShow less
2.8. After 1st sequence Inspection of holes (Wing area) is completed, verify fit of larger rivets are a #5 MS20426AD5 and the smaller rivet is a #4 MS20426AD4 as shown on Mooney Drawing 220000 and in Figure SB M20-324-5. If rivet size is larger than specified - Please contact Mooney Customer Support at support@mooney.com for further action. 2.9. After 1st sequence Inspection of holes is completed (in seat pan area), verify fit of rivets are #5 MS20470AD5 as shown on Mooney Drawing 210000 and in Figure SB M20-324-5. If rivet size is larger than specified - Please contact Mooney Customer Support for further action. 2.10. If damage is found around the hole, it is acceptable to use 1 size up alternate rivet and appro- priate drill bit and/or countersink bit to clean-up hole as shown in Figure SB M20-324-5 and M20-324-7. If 1 size larger hole or countersink will not clean-up damaged area, Please con- tact Mooney Customer Support at support@mooney.com for further action. SERVICE BULLETIN SERVICE BULLETIN M20-324 Revision “A” Date: May 26, 2017 THIS BULLETIN IS FAA APPROVED FOR ENGINEERING DESIGN MOONEY INTERNATIONAL 165 Al Mooney Road North Kerrville, Texas 78028 CORPORATION MOONEY INTERNATIONAL CORPORATION 165 Al Mooney Road North, Kerrville, Texas 78028 tel: 830-896-6000 www.mooney.com Page 3 of 9 NOTE: Countersink depth and diameter no greater than standard limit for MS20426 100 degree manufactured head refer to Figure SB M20-324-7. 2.11. Install new rivets in the 1st sequence of inspected holes, by applying CS3204 B2 around shank, carefully install, allowing sealant to exude under head of rivets as shown in Figure SB M20-324-8. All riveting to be done in accordance with FAA AC43.13- 2B or later approved revision. Make sure all FOD is removed from repaired area. 2.12. Install new rivets in the 1st sequence of (Seat Pan area) in the inspected holes as required. 2.13. 1st sequence should now be completed - move on to 2nd sequence. 2.14. Sequence #2 - mark every other rivet with a visible marker. Remove rivets, undercut rivet heads by drilling. Use a drill of the same size as the diameter of the rivet. Drilling must be exactly centered and to the base of the head only. After drilling, break off the head with a beveled pin punch and carefully drive out the shank, as in 1st sequence out to Wing Station 59.25 (both sides), as shown in Figures SB M20-324-3, SB M20-324-4 and M20-324-5. 2.15. Inspect for any chipping or damage around hole as shown in Figure SB M20-324-4. 2.16. After 2nd sequence Inspection of holes is completed (in wing area), verify fit of larger rivets are a #5 MS20426AD5 and the smaller rivet is a #4 MS20426AD4 as shown on Mooney Draw- ing #220000 and in Figure SB M20-324-5. If rivet size is larger than specified - Please contact Mooney Customer Support at support@mooney.com for further action. 2.17. After 2nd sequence Inspection of holes (Seat Pan area) is completed, verify fit of rivets are #5 MS20470AD5 as shown on Mooney Drawing 210000 and in Figure SB M20-324-5. If rivet size is larger than specified - Please contact Mooney Customer Support at sup- port@mooney.com for further action. 2.18. If damage is found around the hole, it is acceptable to use 1 size up alternate rivet and appro- priate drill bit and/or countersink bit to clean-up hole as shown in Figure SB M20-324-5 and M20-324-7. If 1 size larger hole or countersink will not clean-up damaged area, Please con- tact Mooney Customer Support for further action. NOTE: Countersink depth and diameter no greater than standard limit for MS20426 100 degree manufactured head refer to Figure SB M20-324-7. 2.19. Install new rivets in the 2nd sequence of inspected holes, by applying CS3204 B2 around shank, carefully install allowing sealant to exude under head of rivets as shown in Figure SB M20-324-8. All riveting to be done in accordance with FAA AC43.13- 2B or later approved revision. Make sure all FOD is removed from repaired area. 2.20. Install new rivets in the 2nd sequence of (Seat Pan area) inspected holes as required. CAUTION: CLEAN ANY FOD - REMOVE ANY SHAVINGS OR DEBRIS FROM FUEL TANK AREA WITH A SUITABLE AIR VACUUM AND ACETONE WIPE SOLVENT. 2.21. After both sequence inspection and installation of rivets are completed, reseal any damaged sealant (corners) with new CS3204 B ½ R (rapid) and all rivets with CS3204 A2 sealant. Top coat entire bay with CS3300 red coat as specified in Mooney Spec 20 “Section 12 - Sealing of Integral Fuel Tanks” and per Section 28 of the applicable Service and Maintenance manual. 2.22. After wing tank are is sealed, check for FOD again. Install wing access panels, by applying a new application of CS3330 B2 sealant, and wing walk area with CS3204 B2 (all panels will require removal of old tank sealant and application of new tank sealant when installing) as specified in Mooney Spec 20 “Section 12 - Sealing of Integral Fuel Tanks” and per Section 28 of the applicable Service and Maintenance manual. 2.23. Re-install inner main gear door(s) and stiffener assembly refer to applicable Service and Maintenance manual. SERVICE BULLETIN SERVICE BULLETIN M20-324 Revision “A” Date: May 26, 2017 THIS BULLETIN IS FAA APPROVED FOR ENGINEERING DESIGN MOONEY INTERNATIONAL 165 Al Mooney Road North Kerrville, Texas 78028 CORPORATION MOONEY INTERNATIONAL CORPORATION 165 Al Mooney Road North, Kerrville, Texas 78028 tel: 830-896-6000 www.mooney.com Page 4 of 9 2.24. Install wing root fairings and aluminum tape as required refer to applicable Service and Main- tenance manual. 2.25. Fill fuel tanks to check for fuel leaks per Section 28 of the applicable Service and Maintenance manual. 2.26. If Aircraft does not have TKS - Go to Step 2-31 2.27. If TKS Aircraft - Re-Install TKS tank, bottom foam pad, upper rubber gasket, and re-connect any lines that were disconnected, refer to Section 30 of the applicable Service and Mainte- nance manual and AS&T TKS Installation guide. 2.28. Fill both TKS tanks and check for leaks at tank and all connections, refer to Section 30 of the applicable Service and Maintenance manual and AS&T Installation Guide. 2.29. Re-Install seat pan, refer to Section 30 of the applicable Service and Maintenance manual. 2.30. Re-Install rear and front seats as required, refer to Section 25 of the applicable Service and Maintenance manual. 2.31. When all operations are found to be satisfactory according to applicable M20 Mooney Service and Maintenance Manual, enter compliance note into the log book and return aircraft to ser- vice. NOTE: Fill out compliance card and send by MAIL, FAX or EMAIL to Mooney International Corporation as indicated on the attached Compliance Card (see to Figure M20-324-9). 2.32. Procedure complete. WARRANTY: APPROXIMATELY 48 LABOR HOURS Mooney International Corporation will perform the necessary inspection and any required component repair at the Mooney Factory Service Center when schedules are established between aircraft owners and Mooney International Corporation. For a Mooney special field inspection, contact Mooney's Factory Support at support@mooney.com REFERENCE 1. Applicable Mooney Service and Maintenance Manual DATA: 2. Contact: support@mooney.com for further action. 3. AS&T TKS Installation guide PARTS LIST: Refer to Mooney Service Parts Department for part procurement. Parts Kit P/N: Service Bulletin Kit M20-324-001 - Doubler Rivet Replacement - CALL for Oversize Rivets Item P/N Description Qty 1. MS20426AD4 RIVET (WING AREA) 40 1A. NAS1097AD5 RIVET (WING AREA) (if oversize is required) 10 2. MS20426AD5 RIVET (WING AREA) 40 2A. NAS1097AD6 RIVET (WING AREA) (if oversize is required) 10 3. MS20470AD5 RIVET (WING AREA) 25 3A. MS20470AD6 RIVET (WING AREA) (if oversize is required) 10 4. CS3204 B1/2R SEALER, FUEL TANK AR 5. CS3204 B2 SEALER, FUEL TANK AR 6. CS3204 A2 SEALER, FUEL TANK AR 7. CS3600 TOPCOAT, FUEL TANK AR 8. CS3330 B2 SEALER, FUEL TANK AR 9. 1691- 0410 RIVET, AVEX (SEAT PAN) 50 10. 210000 MOONEY ENGINEERING DRAWING (Ref Copy) 1 11. 220000 MOONEY ENGINEERING DRAWING (Ref Copy) 1 12. Mooney Spec 20 Mooney Spec 20 (Section 12) (Ref Copy) 1 SERVICE BULLETIN SERVICE BULLETIN M20-324 Revision “A” Date: May 26, 2017 THIS BULLETIN IS FAA APPROVED FOR ENGINEERING DESIGN MOONEY INTERNATIONAL 165 Al Mooney Road North Kerrville, Texas 78028 CORPORATION MOONEY INTERNATIONAL CORPORATION 165 Al Mooney Road North, Kerrville, Texas 78028 tel: 830-896-6000 www.mooney.com Page 5 of 9 REMOVE RIVETS ATTACHING REAR SEAT PAN ACCESS TO TKS FLUID TANKS - REMOVE LH SIDE REMOVE 2 HUCKBOLTS TO ACCESS RIVET Figure SB M20-324-1 - REAR SEAT PAN - TKS INSTALLED AIRCRAFT LOWER SPAR CAP DOUBLER RIVET LINE LOWER WING ACCESS PANEL INBOARD MAIN LANDING GEAR DOOR Figure SB M20-324-2 - LOWER SPAR CAP RIVET LINE - BOTTOM OF WING SERVICE BULLETIN SERVICE BULLETIN M20-324 Revision “A” Date: May 26, 2017 THIS BULLETIN IS FAA APPROVED FOR ENGINEERING DESIGN MOONEY INTERNATIONAL 165 Al Mooney Road North Kerrville, Texas 78028 CORPORATION MOONEY INTERNATIONAL CORPORATION 165 Al Mooney Road North, Kerrville, Texas 78028 tel: 830-896-6000 www.mooney.com Page 6 of 9 LOWER SPAR CAP DOUBLER RIVET LINE LOWER WING ACCESS PANEL REMOVED REMOVE 2 HUCKBOLTS REMOVE WING ROOT FAIRING RIVETS AND TRANSFER PLATE Figure SB M20-324-3 - LOWER SPAR CAP RIVET LINE - BOTTOM OF WING ONLY REMOVE ENOUGH SEALANT TO REMOVE AND INSTALL RIVET LOWER WING ACCESS PANEL REMOVED REMOVE ANY DEBRIS CAREFULLY PUSH DRILLED RIVETS WITH BEVELED PUNCH - TANK SEALANT MAY NEED TO REMOVED ALLOWING RIVET TO EXTRACT Figure SB M20-324-4 - LOWER SPAR CAP RIVET LINE - INSIDE WING TANK AREA SERVICE BULLETIN SERVICE BULLETIN M20-324 Revision “A” Date: May 26, 2017 THIS BULLETIN IS FAA APPROVED FOR ENGINEERING DESIGN MOONEY INTERNATIONAL 165 Al Mooney Road North Kerrville, Texas 78028 CORPORATION MOONEY INTERNATIONAL CORPORATION 165 Al Mooney Road North, Kerrville, Texas 78028 tel: 830-896-6000 www.mooney.com Page 7 of 9 WS 24.5 WS 74.0 WS 88.75 WS 59.25 WS 43.5 WS 118.25 WS 103.5 WS 21.125 WS 0.0 MS20426AD5 MS20470AD5 MS20426AD4 1/8” = .125” 5/32” = .156” DIAMETER SHANK DIAMETER SHANK RIVETS - STANDARD SIZE NOTE: IF OVERSIZE IS REQUIRED: NOTE: IF OVERSIZE IS REQUIRED: MS20426AD5 USE NAS1097AD6 RIVET MS20426AD4 USE NAS1097AD5 RIVET REFERENCE MOONEY DRAWINGS: SEAT PAN RIVET LOCATION - DWG #210000 WING AREA RIVET LOCATIONS - DWG #220000 MS20470AD5 USE MS20470AD6 RIVET Figure SB M20-324-5 - LOWER SPAR CAP RIVET LINE AND RIVET IDENTIFICATION LOWER SPAR CAP DOUBLER RIVET LINE Figure SB M20-324-6 - LOWER SPAR CAP RIVET LINE - LOWER SEAT PAN SERVICE BULLETIN SERVICE BULLETIN M20-324 Revision “A” Date: May 26, 2017 THIS BULLETIN IS FAA APPROVED FOR ENGINEERING DESIGN MOONEY INTERNATIONAL 165 Al Mooney Road North Kerrville, Texas 78028 CORPORATION MOONEY INTERNATIONAL CORPORATION 165 Al Mooney Road North, Kerrville, Texas 78028 tel: 830-896-6000 www.mooney.com Page 8 of 9 NOTE: Countersink depth and diameter no greater than standard limit for MS20426 100 degree manufactured head. INSPECT FOR CHIPPING OR DEFORMATION SIDE VIEW - DRILL 1-SIZE UP TOP VIEW SPAR CAP DRILL OUT 1- SIZE UP AND/OR COUNTERSINK TO CLEAN- UP CHIPPING ORIGINAL HOLE SIDE VIEW - COUNTERSINK or CHIPPED AREA IF OVERSIZE IS REQUIRED USE ALTERNATE RIVET MS20426AD4 USE NAS1097AD5 RIVET MS20426AD5 USE NAS1097AD6 RIVET WING SKIN REF: WING SPAR CAP REF: DOUBLER WING SPAR REF: DOUBLER Figure SB M20-324-7 - RIVET HOLE INSPECTION APPLY SEALANT TO RIVET WHEN INSTALLING GREY SEALANT IS CS3204 SERIES RED SEALANT IS CS3600 TOP COAT REFER TO MOONEY SPEC 20 SECTION 12 AND SECTION 28 OF THE MOONEY SERVICE MANUAL FOR APPLICATION OF WING TANK SEALANT Figure SB M20-324-8 - RIVET AND PANEL SEALANT SERVICE BULLETIN SERVICE BULLETIN M20-324 Revision “A” Date: May 26, 2017 THIS BULLETIN IS FAA APPROVED FOR ENGINEERING DESIGN MOONEY INTERNATIONAL 165 Al Mooney Road North Kerrville, Texas 78028 CORPORATION MOONEY INTERNATIONAL CORPORATION 165 Al Mooney Road North, Kerrville, Texas 78028 tel: 830-896-6000 www.mooney.com Page 9 of 9 MOONEY INTERNATIONAL CORPORATION KERRVILLE, TEXAS 78028 - FAX 830- 257- 4635 SERVICE (BULLETIN) (INSTRUCTION) NO.________________HAS BEEN COMPLIED WITH ON AIRCRAFT MODEL _______________ SERIAL NUMBER ________________ Tach. Time: Owner: N-Number (Reg. No.) Date of Compliance: Complied By: Form 07-0001 Inspection Report: MOONEY INTERNATIONAL CORPORATION ATT’N: TECHNICAL SUPPORT 165 Al Mooney Road, North Kerrville, Texas 78028 PLACE STAMP HERE SEND TO: Mooney International Corporation 165 Al Mooney Road North Kerrville, TX 78028 FAX: (830) 257-4635 or EMAIL support@mooney.com Figure SB M20-324-9 - Compliance Card