Aquila ATO1, Руководство по обслуживанию

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MAINTENANCE MANUAL
AQUILA AT01
Aviation by Excellence AG
34-10-00
Page 202
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(1) Gain access to the back of instrument and disconnect static or/and Pitot tube from
instrument.
(2) Remove screws securing instrument to instrument panel.
(3) Remove instrument.
B. Installation of an instrument
(1) Place instrument onto the instrument panel and secure with screws.
(2) Reconnect static or/and Pitot tube to instrument.
5.
A. After any component replacement or repair, the system should be checked for proper function and
a leakage test should be performed.
B. Pitot System Leak Test
(1) Fasten surgical hose and sphygmomanometer bulb over Pitot head.
(2) Pump bulb until airspeed indicator registers 150 KIAS.
(3) Close check valve.
(4) Wait 15 seconds for airspeed indicator to stabilize.
(5) Observe airspeed indicator for one minute.
(6) The airspeed drop should no more than 10 KIAS.
(7) Slowly release check valve so pressure is reduced gradually to prevent instrument damage.
(8) If test reveals a leak in system, check all connections for tightness and repair faulty
components.
C. Static System Leak Test
(1) At pitot-static tube tape over static ports..
(2) Insert a “T” in a static pressure line.
(3) Squeeze sphygmomanometer bulb and close check valve to establish a vacuum inside bulb.
(4) Connect sphygmomanometer to the static pressure line.
(5) Slowly open air bulb check valve until altimeter indicates a-1000-foot increase in altitude then
close check valve to trap suction in system.
(6) While increasing suction and altimeter indicating 1000 feet, ensure that the airspeed indicator
shows an increase and the vertical speed indicator shows a climb indication.
(7) Leakage shall not exceed 100 feet of altitude loss as indicated on the altimeter.
(8) If leakage rate exceeds the maximum allowable, check all fittings and hoses for condition and
tightness and repeat leak test.
(9) If leakage rate still exceeds the maximum allowable, perform the following procedure:
(10) Disconnect static pressure lines from airspeed indicator, vertical speed indicator and altitude
encoder.
(11) Connect lines together using suitable fittings so altimeter is the only instrument still
connected into static pressure system.
(12) Repeat leak test to ascertain whether the static pressure system or the bypassed instruments
are causing the leakage. If instruments are fault, they must be repaired by an approved
repair station or replaced. If static pressure system is faulty, proceed as follows:
Inspection/Check
30.04.08