©2020 Avco Corporation. This is a very nasty service bulletin that will affect thousands of Lycoming engines of all models. This bulletin applies only to MFB HA-6™ carburetors, it does NOT apply to die-cast HA-6™ carburetors. ALCON, See the attached Lycoming Service Bulletin No. Inspection of Rocker Arm, Part Number LW-15014. 632B, dated 4 August 2017, and All Lycoming engines that were overhauled or repaired using any replacement part listed in Table 2 of Lycoming Engines MSB No. about Supplement No. Lycoming's Mandatory Service Bulletin 632 If your engine was overhauled by Penn Yan Aero prior to November 2015, then Lycoming's Mandatory Service Bulletin 632 does not apply. Also, listen to today’s episode, to get some good information about the new Service Bulletin on Lycoming connecting rod bushings – MSB 632B. 8 posts • Page 1 of 1. Reprint of Slick/Champion Aerospace Service Bulletin SB1-19. Cessna has identified 12 newer CAP aircraft that are affected by this Service Bulletin: N395CV. 632B, dated 4 August 2017, and. 632B, dated August 4, 2017. Lycoming's Mandatory Service Bulletin 632 If your engine was overhauled by Penn Yan Aero prior to November 2015, then Lycoming's Mandatory Service Bulletin 632 does not apply. Any DA40 related topics. Service Instructions describe modification, processes and other information pertinent to maintenance repair and overhaul of Textron Lycoming engines. N406CV. civil air patrol national headquarters. All Lycoming engines listed in Table 1 of Lycoming Engines Mandatory Service Bulletin (MSB) No. Need to know the best way to do something? Defective bushings in group one engines have been linked to ‘events’ involving O-360, O-540 or IO-540 series engines installed in Robinson R22 and R44 helicopters, and GippsAero GA8 aircraft. SB632 covers all models of Lycoming engines. This Service Bulletin is notification of required action for mandatory compliance with Hartzell Engine Technologies Service Bulletin SB-065 dated August 31, 2015, regarding Lycoming engine models (Table 1) with fuel pump part number 62D26030, 62D26032, 62D26034, 62D26035, 62D26036, or 62D26037 approved for use on Lycoming engines. Lycoming Service Bulletin No. 632B, dated August 4, 2017, and (2) all Lycoming Engines reciprocating engines that were overhauled or repaired using any replacement part listed in Table 2 of Lycoming Engines MSB No. The bushings were manufactured between November 2015 to February 2017. 50lA) Engineering Aspects are FAA Approved Recall of Piston Pi Part No. Don’t take your Lycoming engine apart just yet if you don’t have to. Service Bulletin No. The manufacturer, Lycoming, has issued Mandatory Service Bulletin 632B to identify and remove from service certain connecting rods with non-conforming small end bushings. 543A provides an alternate means of compliance with Service Bulletin No. 632A) Engineering Aspects are FAA Approved SUBJECT: Identification of Connecting Rods with Non-Conforming Small End Bushings MODELS AFFECTED: The Service Bulletin is available on the Lycoming website at www.lycoming.com. Lycoming Engines Mandatory Service Bulletin (MSB) No. Service Bulletins (published since April 1960) describe mandatory procedures that must be observed for safety reasons, and readily identified by the mandatory heading printed 632B, dated 4 August, 2017, which Regs or maintenance? 632B published by Lycoming on August 4. Lycoming quickly published two revisions (632A and 632B) in rapid succession. Wed Aug 23, 2017 8:29 pm. Lycoming Engines is an Operating Division of Avco Corporation. Added new engine model IO-390-D to Table 1. Since we issued AD 2006-20-09, Lycoming Engines discovered that the March 1, 1997 start date of affected engine models in Mandatory Service Bulletin (MSB) No. Textron Lycoming engines. The FAA has issued Emergency AD 2017-16-11, affecting certain specific Lycoming engines including five that may be installed on Beech Travel Air 95s or B95s. Engines affected by this AD are listed in Mandatory Service Bulletin No. 632A) Engineering Aspects are FAA Approved SUBJECT: Identification of Connecting Rods with Non-Conforming Small End Bushings MODELS AFFECTED: TIME OF COMPLIANCE: Within the next 10 hours of engine operation. 632B. All Lycoming engines listed in Table 1 of Lycoming Engines Mandatory Service Bulletin (MSB) No. 1 to Service Bulletin No. January 17, 2020. 105 S. Hansell Street Maxwell AFB, AL 36112. This photo from Lycoming Mandatory Service Bulletin 632B issued Aug. 4, 2017, illustrates one of the steps in the required inspection of the connecting rod assembly for affected engines. On July 23, as many thousands of GA aircraft owners were converging on Oshkosh for AirVenture 2017, Lycoming published Mandatory Service Bulletin 632A Textron Lycoming engines. Clarified MODELS AFFECTED; added NOTICE on page 1; clarified Steps 1.B and 4.B in “Required Action”; under the “Connecting Rod Bushing Press-Out Verification Procedure” - deleted Step 1 (reference to SB-630), added new Steps 7, 9, and 10 and new Figure 9 for better measuring procedure for indication of bushing movement, clarified the NOTICE after Step 11.A. MODELS AFFECTED. The MSB specifies that engines must receive a connecting rod inspection and replacement of affected connecting rod small end bushings within the next 10 hours of engine operation. 632B, dated August 4, 2017, which was shipped from Lycoming Engines during the dates listed in Table 2 of Lycoming Engines MSB No. The Service Bulletin opens with a warning to owners: “You must complete the… 632 . All 4 and 6-cylinder Lycoming engines equipped with Slick 4300 or 6300 Series Impulse Coupled Magnetos. Customers who purchased Lycoming LW-13923 Connecting Rod Bushings not installed in a Connecting Rod from Aircraft Specialties Services, Inc. after November 18, 2015 the Mandatory Service Bulletin 632B may apply based on the limited information provided by Lycoming. (See link at bottom of this post.) of Lycoming engines. Wherever you are in the world, you have access to exceptional expertise and knowledge about Lycoming engines. Service Bulletin No. The MSB describes procedures for inspecting connecting rods and replacing connecting rod small end bushings. 639 SB 632A addresses a problem with small-end connecting rod bushings (part number LW-13923) that were used shipped by Lycoming to overhaul shops and mechanics … Models and serial numbers of all engines affected and shipped from Textron Lycoming are listed following the text of this bulletin. Added new steps in Table 4 to include EIS Overspeed. Have problems with your aircraft? Lycoming Service Bulletin No. This Service Bulletin is notification of a requirement to replace specific diaphragm-type fuel pumps identified herein as a corrective action in response to a confirmed non-conforming fuel pump in the field. Next maintenance event, or 400 hours total time in service of the magneto (whichever occurs first), then every 500 hours after the initial inspection. www.lycoming.com. This SB requires an internal inspection within 10 flight hours of its date of issuance (July 17, 2017). The Federal Aviation Administration (FAA) has issued Airworthiness Directive 2017-16-11 to mandate the inspections and actions listed in the Lycoming Service Bulletin. At next scheduled oil change, then every 50 hours until 500 hours of engine operation. 632B, dated August 4, 2017, except for the instruction to complete the online survey as specified in the MSB. 637 Reprint of Slick/Champion Aerospace Service Bulletin SB1-19 March 14, 2019 MODELS AFFECTED All 4 and 6-cylinder Lycoming engines equipped with Slick 4300 or 6300 Series Impulse Coupled Magnetos. service on the carburetor(s) in the past. All Lycoming engines that were overhauled or repaired using any replacement part listed in Table 2 of Lycoming Engines MSB No. Cylinder and Head Assembly Serviceable Life, All Lycoming Engines with Parallel Valve Cylinder and Head Assemblies (Table 1) shipped from Lycoming Engines between 1-SEP-2013 and 30-APR-2015 (excludes O-235 series), During Cylinder and Head Assembly removal for condition or overhaul, If the Exhaust System is not replaced per this revision, after the initial Exhaust System Inspection, continue with subsequent repetitive Exhaust System Inspections per Table 2 in this Service Bulletin, Lycoming Engines TIO-540-AH1A installed in Gripps Aero/Mahindra Turbocharged GA8 Airvans, At owner's discretion, during next scheduled maintenance event, 10 hours of engine operation or sooner if experiencing reduced fuel flow, Next maintenance event not to exceed 25 hours or before further flight if fuel leak found during preflight inspection. O-320-H2AD, O, LO, TO, LTO-360-E1A6D new, rebuilt, or overhauled engines shipped from Lycoming since June 2017 with less than 500 hours of operation or engines with less than 500 hours of operation since rocker arm replacement. DATE: August 4, 2017 Service Bulletin No. LW-14077 MODELS AFFECTED. Lycoming has issued Mandatory Service Bulletin 632 that requires owners to check their engines for connecting rods that contain bushings that do not meet Lycoming Engine’s specifications within the next 10 hours of operation. 2. MFB HA-6™ carburetors are found on various Lycoming engine models, possibly on engines made by other manufacturers, and on certificated and non-certificated aircraft of various types. (4) and 11.B. Maybe just questions about how best to tune or adjust something? 632B, dated August 4, 2017. 632B (Supersedes Service Bulletin No. ©2020 Avco Corporation. Lycoming Engines Mandatory Service Bulletin (MSB) No. 877.227.9142 877.227.9142. info@gocivilairpatrol.com. Let the dust settle on this service bulletin, and then make a decision. Sandy 4 Diamonds Member FIRST NAME: Sanford Aircraft: DA40 Registration: N159PS Airport: KPDK Posts: 243 Joined: Mon Apr … Civil Air Patrol is a registered 501(C)(3) mlns:og="http://opengraphprotocol.org/schema/">. This photo from Lycoming Mandatory Service Bulletin 632B issued Aug. 4, 2017, illustrates one of the steps in the required inspection of the connecting rod assembly for affected engines. TIME OF COMPLIANCE Next maintenance event, or 400 hours total time in service of the magneto (whichever occurs first), then every 500 hours after the initial Service Bulletins, Letters and Instructions are available to all from authorized Lycoming … Service Bulletin No. Lycoming AD & MSB No. Service Bulletin No. 543A. SERVICE BULLETIN NO. mlns:og="http://opengraphprotocol.org/schema/">, (1) Engines with a serial number listed in Table 1 of this Service Bulletin , which mandates compliance with Lycoming Mandatory SB 632B, effective 15 Aug 2017. This inspection requires the removal of all engine cylinders. Lycoming Part Number: SSP-112-7 Lycoming Mandatory Service Bulletin. DA: 80 PA: 96 MOZ Rank: 100. Lycoming reciprocating aircraft engines repaired or overhauled using connecting rod assemblies or connecting rod bushing identified in Table 2 of Lycoming SB No. (2) Engines that have been overhauled or repaired that could contain connecting rod assemblies or connecting rod bushings shipped from Lycoming during dates identified in Table 2 of this Service Bulletin, Within the next 10 hours of engine operation. 637 569A, dated April 11, 2006. Service Bulletin No. Service Bulletins (published since April 1960) describe mandatory procedures that must be observed for safety reasons, and readily identified by the mandatory heading printed in red. If your engine was overhauled by Penn Yan Aero after November 2015, please review the parts list supplied with your engine overhaul and determine if SL-13923A bushings were used. Use our Engine Exchange Program to order a new, rebuilt, or overhauled engine to experience more airtime and less downtime. Lycoming Engines is an Operating Division of Avco Corporation. (2) on page 5; added text to “use new seals and gaskets” in Steps 11.A. Continued operation of a non-conforming fuel pump can cause fuel leakage out of the airframer’s vent line or into the engine crankcase. If the bushing moves during this press-out test, then the connecting rod assembly must be removed from … Lycoming photo. Service Bulletin No. 501B (Supersedes Service Bulletin No. Added a new NOTICE before the Magneto Overspeed Inspection section. SB 632B requires that all engines that might possibly contain these non-conforming bushings have all their cylinders removed within the next 10 hours. Group two – Lycoming reciprocating aircraft engines with a serial number listed in Table 1 of Lycoming Service Bulletin (SB) No. (c) Applicability This AD applies to: (1) All Lycoming Engines reciprocating engines listed in Table 1 of Lycoming Engines Mandatory Service Bulletin (MSB) No. This AD requires accomplishing the instructions in Lycoming Engines MSB No. 632. Let the dust settle on this service bulletin, and then make a decision. Don’t take your Lycoming engine apart just yet if you don’t have to. 632. With the cylinders removed, the securing of all small-end connecting rod bushings then must be tested using a special tool (“ST-531 Connecting Rod Bushing Press-Out Verification Tool”) to apply a calibrated force to each bushing to see if it can be displaced. All Lycoming engines in Table 1 equipped with Slick 4200, 4300, or 4700 Series (LASAR) magnetos. Engines Mandatory Service Bulletin (MSB) No. 632B, dated August 4, 2017, that were overhauled or repaired using any replacement part listed in Table 2 of Lycoming Engines MSB No. 543A This Supplement No. O-320-H2AD, O, LO, TO, LTO-360-E1A6D new, rebuilt, or overhauled engines shipped from Lycoming since June 2017 with less than 500 hours of operation or engines with less than 500 hours of operation since rocker arm replacement. 632B (Supersedes Service Bulletin No. THEY WERE SHIPPED FROM THE FACTORY BETWEEN APRIL 1, 1999, AND OCTOBER 4, 2000. Service Bulletins (published since April 1960) describe mandatory procedures that must be observed for safety reasons, and readily identified by the mandatory heading printed 639 Inspection of Rocker Arm, Part Number LW-15014. This was a very nasty service bulletin affecting Lycoming engines of all models that were built, rebuilt, overhauled or repaired during the past two years. DATE: August 4, 2017 MODELS AFFECTED: (1) Engines with a serial number listed in Table 1 of this Service Bulletin (2) Engines that have been overhauled or repaired that could contain connecting rod assemblies or connecting rod bushings shipped from Lycoming during dates identified in Table 2 of this Service Bulletin TIME OF COMPLIANCE: Within the next 10 hours of engine Next maintenance event, not to exceed 50 hours. 342 G. This instructional video walks through the Press-Out Verification Process outlined in Service Bulletin No. 632B, dated 4 August, 2017, which 1 post • Page 1 of 1. Although the FAA has issued this AD as a final rule you may leave a comment at the link above. The MSB describes procedures for inspecting connecting rods and replacing connecting rod small end bushings. You may have heard by now that this past Monday, Lycoming issued Service Bulletin 632. Get the most comprehensive customer service and support in the general aviation industry. 632B, dated August 4, 2017. 632B . 632B. 632. We reviewed Lycoming Engines MSB No. Relevant Service Information. 7 to Service Bulletin No. Added a new section for EIS Overspeed Inspection. Lycoming Service Bulletins, Letters, and Instructions Index - Free download as PDF File (.pdf), Text File (.txt) or read online for free. (2) on pages 5 to 6; added IO-580 and AEIO-580 engine models to row for LW-12034 in the Top Overhaul Gasket Kit table on page 9. All Lycoming engines listed in Table 1 of Lycoming Engines Mandatory Service Bulletin (MSB) No. 569A, is incorrect. Also, listen to today’s episode, to get some good information about the new Service Bulletin on Lycoming connecting rod bushings – MSB 632B. Moderators: Rick, Lance Murray. Service Instructions describe modification, processes and other information pertinent to maintenance repair and overhaul of Textron Lycoming engines. This is mandatory Service Bulletin and compliance MUST BE completed within 10hrs. July 18, 2017. 529 A June 10, 2002 MODELS AFFECTED All Lycoming aircraft engines employing new or overhauled “AN” rotary fuel pump model series RG9080, RG9570 and RG17980, 543A AFFECTS THE TEXTRON LYCOMING ENGINES LISTED UNDER MODELS AFFECTED ONLY IF: 1. Supersedes Service Bulletin No. 632B, dated 4 August 2017, and All Lycoming engines that were overhauled or repaired using any replacement part listed in Table 2 of Lycoming Engines MSB No. All Lycoming reciprocating aircraft engines which were new, factory rebuilt or factory overhauled during the 2011 calendar year. 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