Service Letters

Kitfox Aircraft LLC

"The Sky is not the Limit... It's a Playground!"

A Service Bulletin is the equivalent of an AD on a Certified Aircraft. In the Experimental Regulations, no channel exists for AD's, as such we call them Service Bulletins. A Service Letter is either a suggested change, or designed as an assistance to the owner for an area where multiple difficulties arise.

M1=Model 1 S5=Series 5 All

M2=Model 2 S5=Series 5 Safari/Outback

M3=Model 3 S5=Series 5 Voyager/Vixen

M4=Model 4-1050 S6=Series 6

M4/C4=Model 4-1200 L=Lite

M4=Model 4 Speedster L2=Lite²

S7=Series 7

SERVICE ALERT #2001-01: WARP DRIVE PROPELLERS

SERVICE LETTERS (Click Each Title For Link)	DATE	MODEL
#1-Finger Strainers		Early M1 (Prior to Letter)
#2-Fuel Tank Installation		Early M1 (Prior to Letter)
#3-Spark Plugs and Shields		Early M1 (Prior to Letter)
#4-Spinner		Early M1 (Prior to Letter)
#5-FAB-11 & FAB-13 Bushings, Elevator Control Tube		M1 SN: 56-112
#6-Rotax 532LC Rubber Intake Flanges	11/7/1986	Specific SN Rotax Engines
#7-Wing Tank Fuel Caps	5/6/1987	M1 (Prior to Letter)
#8-Lift Strut Modification	5/6/1987	M1 SN: 2-116
#9-Plastic Spinners	6/9/1987	M1 with 3 Blade Prop and Plastic Spinner
#10-Wing Tank "T" Fittings	8/14/1987	M1 (Prior to Letter)
#11-Wing Tank Recall	8/20/1987	M1 (Prior to March 23, 1987)
#12-1/4" Propeller Bolts	6/30/1988	M1, M2 (Prior to Letter)
#13-Not Used	NA	NA
#14-E-33 Aluminum Rear Spinner Bulkheads	12/27/1988	M1, M2 SN: 2-263, 278-281
#15-Wing Tanks, WT-1R and WT-1L and Header	3/27/1989	M1, M2 SN: 2-270
#16-Eletric Starter	6/7/1990	Specific Rotax 503, 532 & 582 Engines (Prior to Letter)
#17-Not Used	NA	NA
#18-Preflight Inspection of Rudder Cables	7/22/1991	M1, M2, M3
#19-Oil Injection System	9/3/1991	All Models with Rotax 582 Engines (Prior to letter)
#19A-Oil Injection Systems (Revised)	5/9/1994	All Rotax 2-Stroke Engines
#20-Shock Cords	9/19/1991	M3, M4 (Prior to Letter)
#21-Cotton Pox Micro-Balloons	10/16/1991	M3, M4 SN: 1143-1420
#22-Header Tank and Fuel Line Routing	10/22/1992	All Models using a Header Tank
#23-Dual Brake Braking Problems	12/7/1992	All Models Equipped with Dual Brake Option
#24-Propellar Installation, Torquing Procedures and Maintenance	12/14/1992	All Models
#25-Lift Strut Attachment	3/12/1993	All Models
#25A-Lift Strut Attachment (REVISED) Wing Dihedral Lift Strut Adjustment	9/12/1994	All non S5 Kitfox's All Models
#25B-Lift Strut Attachment (REVISED) Wing Dihedral Lift Strut Adjustment	9/12/1994	All non S5 Kitfox's All Models
#26-Nose Gear Piston	2/10/1994	S5 Vixen SN: ECV001-LCV023
#27-Airspeed Indicators and Pitot Static System	5/1/1994	All Kitfox™ Owners
#27A-Airspeed Indicators and Pitot Static System (REVISED)	9/7/1994	All Kitfox™ Owners
#28-Sound Absorbing Kit	5/1/1994	All Kitfox's using Rotax 912 with optional pre-sewn sound insulation material installed on the firewall
#29-Vixen Documentation and Upgrade	4/6/1994	All S5 Vixen Owners
#30-Aft CG Limit	5/1/1994	All M4-1200 Models
#30A-Aft CG Limit (REVISED)	9/7/1994	M1, M2, M3, M4, C4
#31-Tail Skid Bushing	8/15/1994	All S5 Vixen 1200# Models
#32-Elevator Push-Pull Tubes	6/23/1994	All S5 Models
#33-Fuel Valve Mounting Bushing	6/24/1994	All S5 Vixen 1200# Models
#34-Series 5 Horizontal Bushing	8/19/1994	All S5 Models
#35-Rotax 582 Choke Control	8/19/1994	M1, M2, M3, M4, C4
#36-Cable Guides	8/22/1994	All S5 Models
#37-Series 5 Wing Folding	8/22/1994	All S5 Models
#38-Elevator Control Stop Bushing	9/12/1994	All S5 Models
#39-Belly Stringer Forward Attach Angle	9/14/1994	All S5 Models
#40-Bridge Rectifier	11/19/1994	All Models
#41-Charging System	10/19/1994	All Models
#42-Center Firewall Section	11/9/1994	All S5 Engine Kits prior to 11/31/94
#43-Series 5 Speedster Rudder	11/28/1994	All S5 Speedsters
#44-Series 5 Connect Tube Threads	11/29/1994	All S5 Fuselage Kits prior to 11/31/94
#45-Ensuring Proper Fuel System Performance	9/21/1995	All Models with Wing Tanks
#46-Possible Fatigue of Vixen Nose Gear Fork	9/1/1995	All S5 Vixens
#47-Rudder Pedal Torgue Tube Cracking	8/22/1995	M1, M2, M3, M4, C4
#48-Welded Landing Gear	8/22/1995	All Taildraggers Aircraft with Welded Landing Gear
#49-Rotax Service Bulletins	8/25/1995	All Models Powered by Rotax Engines
#50-Matco M62 Wheel Installation	8/28/1995	Models with Matco W62 Wheels
#51-Series 5 Round Cowl, Rotax 912 Exhaust System	9/11/1995	S5 Models using Round Cowls and Rotax 912 Engines
#52-Pulsar II and III Aircraft	11/23/1998	Pulsar II & III Models
#53-Rotax 912 and 912S Engine Installations (Pulsar)	4/22/1998	Pulsar II & III Models
#54-Field Service Report Request	6/6/1999	S5 Models
#55-Weight and Balance	8/6/1999	S5 Vixen & Voyager

Hit Counter

SERVICE LETTERS (Click Each Title For Link)