Textron Cessna 208B, Service Bulletin

Page 1: ... be accomplished within the next 100 hours of operation or 12 month annual type inspection whichever occurs first APPROVAL Cessna received FAA approval for the technical data in this publication that changes the airplane type design Cessna received EASA approval for the technical data in this publication that changes the airplane type design CAB 30 02 May 17 2013 Page 1 of 31 Cessna Aircraft Compa...

Page 2: ...To apply to access panels Sealant U470638 Cessna Aircraft Company Cessna Service Parts and Programs 5800 East Pawnee PO Box 1521 Wichita KS 67218 To fillet seal around the TKS panels Scotch Brite Pad Purchase locally To abrade the leading edges Denatured Alcohol Purchase locally To clean the leading edge Tape P840218 Cessna Aircraft Company Cessna Service Parts and Programs 5800 East Pawnee PO Box...

Page 3: ... Cessna Aircraft Company Cessna Service Parts and Programs 5800 East Pawnee PO Box 1521 Wichita KS 67218 To fabricate TKS tubing Clenching Tool 1 2 Inch T300 144 Cessna Aircraft Company Cessna Service Parts and Programs 5800 East Pawnee PO Box 1521 Wichita KS 67218 To fabricate TKS tubing Plastic Sheeting Commercially Available To catch anti ice fluid from the TKS panel purge procedure Aluminum Ta...

Page 4: ...ated or the panels have been moistened in the last 30 days the purge of the panels in Step 11 Step 11B thru Step 11B 132 is not required for 208B5004 208B5005 208B5008 208B5009 208B5011 208B5016 208B5017 and 208B5019 NOTE Upon delivery to the customer after the installation of this service bulletin the TKS system in the airplane should contain only new and not refiltered TKS fluid 1 Prepare the ai...

Page 5: ... walk Since there is leakage of fluid from the panels for a while after the system is no longer in operation make sure that you collect fluid that drips from the airplane or continue to remove fluid from the floor until there is no more leakage CAUTION Never use unapproved ice protection fluids in the ice protection system Never use a thickened anti ice fluid or one that is made for use on the run...

Page 6: ...eak install new seals as necessary CAUTION Clench the olive to the tubing without a sealing ring in position If you clench the olive with a sealing ring in position you will prevent a correct clench and the sealing ring will be unserviceable f Put the end of the nylon tubing into the correctly sized clenching tool as far as it will go g Make sure that the outer end of the olive is in the correct p...

Page 7: ...023 4 0454 Hose Assembly to the windshield spray bar assembly D With the two MS21919WCJ12 Clamps one MS9024 09 Clamp one AN3 3A Bolt and one MS21042 3 Nut attach the 624023 4 0454 Hose Assembly as shown E Remove the AN929 L4J Cap on the ZN6261 Fitting in the firewall at WL 80 77 and RBL 16 16 F Attach the end of the 624023 4 0454 Hose Assembly that is not connected to the windshield spray bar asse...

Page 8: ...n B Remove the 373BL Access Plate from the left horizontal stabilizer and the 374BR Access Plate from the right horizontal stabilizer Refer to the Model 208 Maintenance Manual Chapter 6 Access Plates and Panels Identification Description and Operation C Remove the 320A 341C and the 341B Access Plates and the 341A Access Plate if installed from the vertical stabilizer Refer to the Model 208 Mainten...

Page 9: ...Service at 316 517 5800 WARNING During this test the TKS system operation pressure will be as high as 75 psig 3 Attach the fluid collector system plastic guttering below the area of the panels 4 Fill the TKS system test cart reservoir with approximately 5 50 gallons 20 82 liters of TKS fluid and attach the cart to an air source Do not fill the reservoir until it is full NOTE You will fill the rese...

Page 10: ...e cart 4 Turn the water valve counterclockwise until the pressure gauge shows 50 psi 5 After water begins to flow from the panel let the water flow for 30 minutes 6 Turn the purge cart selector lever to AIR 7 Adjust the air pressure to 15 psi 8 Purge the entire system with the air for 10 to 15 minutes to dry out the panels Are there correct flow characteristics for the porous panel If still no Do ...

Page 11: ...to slowly start the fluid flow through the panel 31 Wait until the fluid starts to come out all the holes at the same rate along the full length of the panel and increase the pressure to 65 psi 32 Continue the fluid purge until the panel is correctly purged in accordance with Figure 3 and Table 2 NOTE To get an even flow over the panel it may be necessary to lightly run a dry cloth or paper towel ...

Page 12: ...il the fluid pressure is released 53 Disconnect the purge tank lines 54 Install new sealing rings one S2800 942 Sealing Ring at port 6 and one S2800 943 Sealing Ring at port 7 and connect the wing strut TKS supply lines to ports 6 and 7 on the wing proportioning unit 55 Disconnect the two right inboard wing porous panel supply lines from ports 1 and 5 of the wing proportioning unit NOTE The inboar...

Page 13: ...luid supply tube from the inboard panel 74 Install a new S2800 942 Sealing Ring and connect the center TKS inboard wing panel supply line to port 2 on the wing proportioning unit 75 Disconnect the right outboard wing TKS panel supply lines from ports 3 and 4 on the wing proportioning unit 76 Connect the purge tank line to the outboard TKS panel as near to the panel as you can 77 Apply pressure of ...

Page 14: ...e You can install a tee fitting and connect the test cart supply tube to each membrane 95 Apply pressure of 10 psi do a check for leaks in the line and repair all leaks 96 Apply pressure of 20 psi to slowly start the fluid flow through the panel 97 Wait until the fluid starts to come out all the holes at the same rate along the full length of the panel and increase the pressure to 75 psi 98 Contin...

Page 15: ...118 Continue the fluid purge until the panel is correctly purged in accordance with Figure 3 and Table 2 NOTE To get an even flow over the panel it may be necessary to lightly run a dry cloth or paper towel over the leading edge and or the dry spots of the panel during purging 119 Stop the fluid supply 120 Wait until the fluid pressure is released 121 Disconnect the purge tank lines 122 Install a ...

Page 16: ... the tank as necessary until the indicator in the sight glass is above the minimum departure mark 5 Put the EXTERNAL POWER switch to the BUS position 6 Put the FLUID CONTROL PRIMARY switch to the HIGH position 7 Wait until the fluid starts to come out all the holes along the full length of the panel 8 Make sure that the fluid comes out of all of the panels and the propeller slinger NOTE Actual flu...

Page 17: ... fluid and remove collection equipment from the airplane as necessary 26 Remove the fluid collector system plastic guttering below the panels D Do a test of the windshield ice detect light wing inspection lights and nav lights as follows 1 Make sure that the WING ICE DET LIGHT and the NAV LIGHT circuit breakers are engaged 2 Connect external power and put the EXTERNAL POWER switch in the BUS posit...

Page 18: ...hat there is a fluid flow to each porous panel that goes the full length of the panel NOTE At fluid temperatures that are above 59 F 15 C fluid viscosity is such that the operating pressure may not cancel the low pressure WARN annunciator At these fluid temperatures you must make sure visually of the full length fluid flow to each porous panel to make sure of correct operation of the system After ...

Page 19: ...Caravan SERVICE BULLETIN CAB 30 02 Figure 1 Forward of Fuselage Installation Sheet 1 CAB 30 02 May 17 2013 Page 19 ...

Page 20: ...CAB 30 02 Page 20 May 17 2013 Caravan SERVICE BULLETIN CAB 30 02 Figure 1 Forward of Fuselage Installation Sheet 2 ...

Page 21: ...Caravan SERVICE BULLETIN CAB 30 02 Figure 1 Forward of Fuselage Installation Sheet 3 CAB 30 02 May 17 2013 Page 21 ...

Page 22: ...CAB 30 02 Page 22 May 17 2013 Caravan SERVICE BULLETIN CAB 30 02 Figure 2 Correct Tubing Coupling Procedures Sheet 1 ...

Page 23: ...Caravan SERVICE BULLETIN CAB 30 02 Figure 2 Correct Tubing Coupling Procedures Sheet 2 CAB 30 02 May 17 2013 Page 23 ...

Page 24: ...CAB 30 02 Page 24 May 17 2013 Caravan SERVICE BULLETIN CAB 30 02 Figure 2 Correct Tubing Coupling Procedures Sheet 3 ...

Page 25: ...Caravan SERVICE BULLETIN CAB 30 02 Figure 3 Fluid Flow During Panel Purge Sheet 1 CAB 30 02 May 17 2013 Page 25 ...

Page 26: ...CAB 30 02 Page 26 May 17 2013 Caravan SERVICE BULLETIN CAB 30 02 Figure 3 Fluid Flow During Panel Purge Sheet 2 ...

Page 27: ...Caravan SERVICE BULLETIN CAB 30 02 Figure 3 Fluid Flow During Panel Purge Sheet 3 CAB 30 02 May 17 2013 Page 27 ...

Page 28: ...CAB 30 02 Page 28 May 17 2013 Caravan SERVICE BULLETIN CAB 30 02 Figure 4 Circuit Breakers Sheet 1 ...

Page 29: ...Caravan SERVICE BULLETIN CAB 30 02 Figure 5 Protective Tape Application Sheet 1 CAB 30 02 May 17 2013 Page 29 ...

Page 30: ...ctor None None P075 1 Blank Olive None None S2800 942 14 Sealing Ring None None S2800 943 2 Sealing Ring None None ZN101 12 4 Olive None None ZN101 20 4 Sleeve None None ZN4855 4 Nut None None ZN4856 4 Nut None None 03 151 10 1 Cap None None 03 151 7 1 Nylon Cap None None 100 013 8810 3 Seal None None CAB 30 02 1 Instructions In addition to the CAB 30 02 1 Kit Airplane Serials 208B5000 208B5002 th...

Page 31: ...ssembly None None 624023 4 0792 1 Hose Assembly None None Airplane Serials 208B5000 and 208B5003 must also order the assembly below to install this modification NEW P N QUAN TITY KEY WORD OLD P N INSTRUCTIONS DISPOSITION B3N21100S 1 Prop and Spinner Assembly B3N21050S Return to Cessna For all airplanes the handbook below will also be necessary NEW P N QUANTITY DESCRIPTION OLD P N DISPOSITION 208BP...

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Page 33: ...08B5005 and 208B5008 Applicable parts credit and a labor allowance credit of 28 0 man hours per airplane will be provided to accomplish this service bulletin Airplane Serials 208B5009 208B5011 208B5016 208B5017 and 208B5019 Applicable parts credit and a labor allowance credit of 25 0 man hours per airplane will be provided to accomplish this service bulletin Freight will be credited at the most ec...

Page 34: ... to Authorized Service Facilities NOTE As a convenience service documents are now available online to all our customers through a simple free of charge registration process If you would like to sign up please visit the Customer Support Login link at www Cessna com to register ...