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2 Increase pressure up to 70 psi.
(i) Re-evaluate panel performance for elevator tip.
(j) If elevator tip porous panel performance is still inadequate, replace panel and send
removed panel to Cirrus Design for inspection. (Refer to AMM 30-10)
(k) If elevator tip porous panel performance is acceptable:
1 Close shut-off valve at in-line pressure gauge corresponding to panel being purged.
2 Disconnect in-line pressure gauges from coupler assemblies.
3 Bleed air by energizing system on aircraft and run in "high" mode until full flow into
collection containers without air bubbles is achieved.
Note: Make connections quickly to minimize introducing air into system
lines.
4 Remove short length of tubing from 3/16-inch supply line.
5 Reconnect coupler assembly to 3/16-inch supply line. Torque nuts to 28 in-lb (3.1
Nm) and apply torque seal.
6 Remove 3/16-inch to 5/16-inch reducer from each of the TKS cart lines.
C I R R U S S E R V I C E B U L L E T I N MOD E L S R 2 2
SB 2X-30-03 R1
Cirrus Design SR22 Serials 3003, 3310, 3326, 3403 Page 14
thru 3424, 3463, and 3499 w/ FIKI ice protection system.
EFFECTIVITY:
November 23, 2009
I. Procedure - Ground Flow Test #1
CAUTION: Ensure that both aircraft and anti-ice fluid being used for ground flow test are stabilized
at a temperature between -30°C and 0°C. This may require cold-soaking both for several
hours to achieve representative temperatures. A complete ground flow test may require
up to 8 gallons (two full tanks) of anti-ice fluid to complete.
(1) Test panel flow rates while operating Pump#1 and Pump#2.
(a) Record Aircraft Serial Number (ASN) and date of Ground Flow Test.
(b) Measure and record ambient temperature of area where Pump#1 flow test is being performed.
CAUTION: Avoid subjecting aircraft to localized areas of elevated temperatures (high
intensity lights, area heaters, etc.) as temperature gradient will cause inaccuracy
in measurements.
(c) Set System Mode switch to HIGH, and activate Pump#1 by setting System Switch to ON.
(See Figure 3)
(d) Observe voltage of Pump#1 and adjust its operating voltage to 27.85 VDC nominal via
ground power supply.
(e) Record operating voltage of Pump#1.
CAUTION: Ensure supplied voltage of ground power supply does not drift in excess of
±0.02 VDC during test.
(f) Perform Ground Flow Test:
1 Allow system to operate until flow rate from each collection location has stabilized.
(See Figure 3)
Note: Stabilization is generally characterized by observing a steady stream
of fluid at the collection points of horizontal panels. This is necessary
because there is a slight lag time as system builds pressure, forcing
panels to expel fluid, which is then directed to collection points.
To reduce time required for an observable flow rate at the horizontal
panels, slowly add anti-ice fluid to horizontal drain troughs once horizontal
porous panels begin “weeping”. Continue adding anti-ice fluid
until stream develops at trough outlet on LH and RH horizontal. This
will reduce the volume of fluid that would otherwise have to be displaced
from the trough before flow rate could be measured.
Once flow rates at each collection point have stabilized, equilibrium
will be reached that causes each drop of fluid leaving the panel to displace
another into leaving the drain trough at that collection point.
Do not add any fluid to troughs once equilibrium is obtained. To do so
will inflate flow rate measurements.
2 To measure flow rate of propeller and each wing, horizontal, and vertical panel, use
stopwatch and graduated cylinder (1.0mL divisions maximum) to take a volume
measurement at each collection point for precisely 1 minute.
Note: Measured volume will be "Observed" flow rate of that particular panel.
C I R R U S S E R V I C E B U L L E T I N MOD E L S R 2 2
SB 2X-30-03 R1
Cirrus Design SR22 Serials 3003, 3310, 3326, 3403 Page 15
thru 3424, 3463, and 3499 w/ FIKI ice protection system.
EFFECTIVITY:
November 23, 2009
Avoid making contact with drain trough as it may disrupt equilibrium of
anti-ice fluid flow at that collection point.
Ensure all anti-ice fluid has been removed from graduated cylinder
prior to testing the next collection point.
3 To measure flow rate of elevator tips, use stopwatch and graduated cylinder (0.1mL
divisions maximum) to take a volume measurement at each collection point for precisely
3 minutes.
Note: Measured volume divided by 3 will be "Observed" flow rate of that
particular panel.
Avoid making contact with drain trough as it may disrupt equilibrium of
anti-ice fluid flow at that collection point.
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30-00 ICE AND RAIN PROTECTION - Alteration of TKS Anti-Ice S(8)
