Service Bulletins
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FUEL & FILTRATION

Service Letter #037
Date: August 25, 2009
Subject: This service letter is intended to support use of the spring loaded Pump Discharge Valve assembly in all MA-4-5, MA-5, or MA-6 carburetors. This improved design should be used at the next overhaul of original, overhauled, or repaired carburetors regardless of the party which previously performed work. View Bulletin

Service Letter #036
Date: September 1, 2009
Subject: This service letter is intended to reduce confusion for customers utilizing KAPS overhauled HA-6 carburetors. If you have an HA-6 type carburetor with a clear history of overhaul/repair by Kelly Aerospace Power Systems and wear at the mixture control stop is acceptable, no action need be taken regarding Volare's Service Bulletin SB-6. (Acceptable stop wear is defined in Volare' SB-6.) View Bulletin

Service Letter #035
Date: August 25, 2009
Subject: This service letter is intended to clarify the confusion created by Precision MSA-13 and Volare' SB-2, SB-3, and now SB-5 all pertaining to the use of FAA/PMA approved KAPS metal floats in Precision Airmotive/ Facet/ Marvel Schebler/ Borg Warner float style carburetors. View Bulletin

Service Letter #034
Date: August 25, 2009
Subject: This service letter is intended to reduce confusion for customers utilizing KAPS overhauled HA-6 carburetors and the inspection of pump plunger retaining clips. If you have a HA-6 carburetor with a history of overhaul/repair by Kelly Aerospace Power Systems, please read and understand this service letter and Volare's Service Bulletin SB-3. View Bulletin

Service Letter #033
Date: July 15, 2009
Subject: Service Letter SL 033 covers Volare' SB-11 regarding peening repairs. This service letter is intended to reduce confusion for customers utilizing KAPS overhauled/repaired float style carburetors and compliance with Volare' SB-11 which covers peening repairs around the mixture bearing bore. View Bulletin

Service Letter #032
Date: July 15, 2009
Subject: KAPS Service Letter SL 032 covers Volare' SB-10 regarding the use of thread sealant in carburetors. This service letter is intended to notify KAPS customers that, as a running change, we no longer use a thread sealant in our overhaul or repair process. View Bulletin

Service Letter #031
Date: July 15, 2009
Subject: Service Letter SL 031 covers Volare' SB-9 regarding accelerator pump levers. This service letter is intended to reduce confusion for customers utilizing KAPS overhauled or repaired MA-4-5, MA-5 and MA-6 carburetors and the requirements contained in Volare' SB-9. View Bulletin

Service Letter #030
Date: April 7, 2009
Subject: Inspection for Clearance of float to bowl when using Kelly Aerospace Power Systems brass floats. View Bulletin

Service Letter #029
Date: April 7, 2009
Subject: Use of Kelly Aerospace Power Systems Brass Floats in float style carburetors. View Bulletin

Service Letter #028
Date: April 7, 2009
Subject: Use of Kelly Aerospace Power Systems PMA'd parts in Carburetors and other fuel system components. View Bulletin

Service Letter #027 Rev. A
Date: August 19, 2008
Subject: This service letter is intended to clarify the confusion pertaining to the use of FAA/PMA approved KAPS metal floats in Precision Airmotive/Facet/Marvel Schebler float style carburetors. View Bulletin

Service Bulletin #032
Date: March 13, 2008
Subject: It has come to the attention of Kelly Aerospace Power Systems that the two screws that secure the throttle valve plate to the throttle valve shaft may not be of proper length (short). The subject screw KAPS part number CF15-A23, has been sold as individual parts, in KAPS Carburetor Quick Kits, in KAPS Throttle Shaft Kits, and may have been installed in certain carburetors overhauled by Kelly Aerospace Power Systems. This Service Bulletin is being issued to mandate the inspection for, and replacement of, short throttle valve plate attachment screws KAPS P/N CF15-A23. View Bulletin

Service Letter #026 Rev. A
Date: June 22, 2010
Subject: This service letter is intended to alert Kelly Aerospace customers to Precision's Mandatory Service Bulletin and to advise that KAPS parts (including the subject gasket) that may have been used in the the above servos, are not affected in any way.
Rev A updates FAA AD to the most current number. View Bulletin

Service Bulletin #028 Rev. A
Date: Aug 28, 2007
Subject: This Service Bulletin is being issued to mandate the replacement of affected fuel pump diaphragm and plunger assemblies part number CFRB15985 manufactured and sold between September of 2005 to July 25, 2007. View Bulletin

Service Informational Letter #CF-98001
Date: September 15, 1998
Subject: Faulty RSA-10 Fuel Diaphram Assemblies (P/N: 2541803)
Recall of Precision Airmotive fuel diaphram assemblies manufactured from 9-30-97 through 5-12-98. View Bulletin

Sales Bulletin #MB-2022
Date: May 2, 2000
Subject: Consolidated Fuel Systems, Inc. Overhauled Romes / Crane Fuel Pump Product
Lycoming has issued a Mandatory Service Bulletin which requires valve housing replacement. View Bulletin

Service Bulletin #MB-2026
Date: March 1, 2002
Subject: Carburetor "Quick Kits"
Carburetor "Quick Kit" Price Reduction View Bulletin