Airplane Maintenance Manual
Bristell
B23
Chapter 34
Chapter 34 Page 4
Issue: 30-Sep-2020
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Create an under pressure by sucking on the tube/hose
corresponding to altitude of 1000 ft
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Seal the tube/hose
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Drop in the indicated altitude per one minute must not
exceed 100 ft.
Pitot system
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Put a hose on the pitot tube and seal airtight
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Put pressure on the system corresponding to a speed of
100 knots
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Seal the hose
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Drop in speed for 1 minute must not exceed 5knots
34-10-11 Pitot Tube
Removal
Tools needed:
Electric drill
drill bit diam. 1/8 in
pliers, cutting pliers
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Drill out rivets attaching the bracket with the Pitot tube
to the wing and pull out a bit the Pitot tube with hose
from hole in wing.
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Remove the tightening strip from hose.
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Disconnect the red hose for total pressure from the Pitot
tube.
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Disconnect the green hose for AOA sensor from the Pitot
tube.
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Disconnect wires for Pitot tube heating.
Installation
Tools needed:
Hand riveter
pliers, cutting pliers
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Connect wires for Pitot tube heating.
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Connect the hoses to the outlet of the Pitot tube and
secure it with tightening strips.
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Insert the Pitot tube in the bracket.