CAB-30-02
Page 8 May 17, 2013
Caravan SERVICE BULLETIN
CAB-30-02
O. Attach the 624023-4-0792 Hose Assembl y (the end that is not connected to the 131 25-04 Propeller
Nozzle) t o the ZN6829 Fitting i n the firewall at WL 80.77 adjacent to t he fitting where y ou attache d
the 624023-4-0454 Hose Assem bly.
P. Install the lowe r le ft cowl ing pane l, righ t upper engine cowling, and righ t nos e cap. (Refer to the 208
Maintenance Manual, Ch apte r 71, Engine Cowlin g and Nose Cap - Ma intenanc e Prac tices.)
4. Do an ins pec tion to mak e sure that the wi nds hiel d spray bar has not been painted over.
5. Fillet seal the edges of the porous panel s as follows :
A. (Refer to Figure 5.) Appl y P840 218 Tape to the leading edges of t he panels that you w ill seal.
B. Fillet s eal around the edges of the p orous panels with U470638 Sealant . Apply U470638 Sealant
as a fill et s eal in the 0.12-inc h space between the masking tape and the porous panel. Make sure
that the U470638 S ealant touches t he edge of t he poro us panel at all positions. (Refer t o the 208
Maintenance Manual, C hapt er 20, Fuel, Weather, and High-Temperature Sealing - M aintenanc e
Practices and Chapter 30, TKS Anti-Ice Leading Edge Porous Panel - Maintenan ce P r ac t ices .)
6. Get access for the return to service checks as follows:
A. Remove the 503HB , 503DB, 503BB, 50 3A B, 501 EB, and 501B B A ccess Plates from the left wing
and remove the 603HB, 603 DB, 603B B, 603AB, 601EB, and 601BB Access P lates from the
right wing. (Refer to the Model 208 Maintenan ce Manual, Chapter 6, Acc es s P lates and Pan els
Identifica tion - Desc r iption and Operation.)
B. Remove the 373BL Ac c es s P late from t he left horizontal stabiliz er and t he 374BR Acces s P late
from th e right horizo ntal stabilizer. (Refer to t he Model 208 Maintena nc e M anual, Chapter 6, Ac c ess
Plates and P anels Identific at ion - Desc r iption and Operat ion. )
C. Remove the 320A, 341C, and the 341B Access Plates and the 341A Access Plate (if installed) from
the vertical stabi lizer. (Refe r t o the Model 208 Maint enanc e Manual, Chapter 6, Ac c es s Plates and
Panels Identification - Description and O peration.)
7. Remove an d discard the 6590335-2 PLACARD - INOP that is insta lled under the TKS s witc hes on the
pilot's side ant i-ice instrument pa nel.
8. Remove the 2 605071-1 FIKI Prohibited placard that is installed ove r the PFD.
9. Review a nd incorporate t he 208BP HCUS -S 1-00 TKS Ice Protection System Pilot's Operating Handbook
Supplement and make sure that the 208BPHCUS-00 Pilot's Operating Handbook an d FAA App r oved
Airplane Flight M anual i s updated to 208B P HCUS -01 (or latest revision).
10. (Refer to Figure 4.) Un co llar and engage t he Pri Ant i-Ice, B ac k up Anti-Ice, and W/S Anti-Ice circuit
breakers.
CAUTION: Before you begin the panel purge, you must make sure that the fillet seal is no
longer tacky.
NOTE: You can mak e test lines of TKS tubing . Shutoff valves or nylon balls and nuts as recorded in the
Tooling and the Mat erial Information S ec tions of this s ervice bulletin can be used to m odulate flow
through the t es t lin es . It is nec essary to install a 0-200 ps i fluid gaug e in the empennage t es t
line only.
11. Do the panel p urge and co mplete system functional test as follows:
A. Put a label on each wing tube assembly to make sure that you att ac h it to the correct related
proportioning tube port after you complete the funct ional test. Refer to Table 1.
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