R **ON A/C 106-149, 201-299, 301-399, 401-499,
Subtask 34-10-00-170-050-A
A. Flushing of the Total Pressure Line
(1) Blow the gas into the hose at a pressure of 2 bars (29 psi) for approximately 3 minutes.
(2) Clean draining hole of the pitot probe 1(2) with CLEANER - PITOT PROBE
(3) Make sure that there is no contamination in the pressurized gas at the outlet of the pitot probe 1(2).
(4) Stop the flow of gas.
(5) Disconnect the dry nitrogen source.
(6) Remove the 3-pin adapter .
(7) Release the hose.
(8) Connect the quick-disconnect coupling to the ADM 19FP1 (19FP2).
NOTE : After the connection:____ - make sure that a colored ring is shown on the quick-disconnect coupling - pull the connectors to be sure that they are correctly attached.
R R R R (9) Do a visual inspection only, of the quick disconnect fitting connection, by a second qualified mechanic, with a sign off by both mechanics.
NOTE : During heavy visits (C-check or higher) the Leak Test must be____ performed on every pitot and static system disturbed.
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5. Close-up
________ Subtask 34-10-00-410-059
A. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Close the access door 812 (822).
(3)
Remove the access platform(s).
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TASK 34-10-00-170-002
Flushing of the Principal Static Pressure Lines
1.
Reason for the Job
__________________
Self Explanatory
2.
Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific dry nitrogen source - 2 bars (29 psi)
No specific access platform 1.6 m (5 ft. 3 in.)
98D34103002000 1 ADAPTERS - AIR DATA SYSTEM FLUSHING
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
R 52-41-00-410-002 Close the Avionics Compartment Doors after Access 34-10-00-991-001 Fig. 301
3. Job Set-up
__________
(Ref. Fig. 301/TASK 34-10-00-991-001)
NOTE : The hose couplings are self-sealing.
____
Subtask 34-10-00-010-060
A. Get access to the Avionics Compartment
(1)
Put the access platform in position in the zone 128 at the access door 824.
(2)
Open the access door 824.
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Subtask 34-10-00-860-052
B. Connect the Dry Nitrogen Source
(1) Disconnect the quick-disconnect coupling from the ADM 19FP4 or 19FP5 (19FP6 or 19FP7).
(2) Connect a ADAPTERS - AIR DATA SYSTEM FLUSHING (98D34103002000) 3-pin adapter (98D34103002100) to the static pressure hose. Then connect it to the dry nitrogen source - 2 bars (29 psi).
(3) Attach the hose to prevent movement.
4. Procedure_________
Subtask 34-10-00-170-051
A. Flushing of the Static Pressure Line
(1) Blow the gas into the hose at a pressure of 2 bars (29 psi) for approximately 1 minute.
(2) Make sure that there is no contamination in the pressurized gas at the outlet of the L or R static probe 1 (L or R static probe 2).
(3) Stop the flow of gas.
(4) Disconnect the dry nitrogen source.
(5) Remove the 3-pin adapter .
(6) Release the hose.
(7) Connect the quick-disconnect coupling to the ADM 19FP4 or 19FP5 (19FP6 or 19FP7).
NOTE : After the connection:____ - make sure that a colored ring is shown on the quick-disconnect coupling - pull the connectors to be sure that they are correctly attached.
R R R R (8) Do a visual inspection only, of the quick disconnect fitting connection, by a second qualified mechanic, with a sign off by both mechanics.
____ performed on every pitot and static system disturbed.
5. Close-up
________ Subtask 34-10-00-410-060
A. Close Access
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