ALL 32.1 Page 506 Oct 25/9834-11-00
1) Connect test equipment as described in paragraph (2)(a), to upper right pitot-static probe.
CAUTION: ENSURE THAT PROBE ADAPTER IS FLUSHED WITH WATER
_______ BEFORE ATTACHING ADAPTER TO PROBE, OR PROBE AND/OR ADAPTER MAY BE DAMAGED. A SOLUTION CONSISTING OF HALF PURE ETHYLENE GLYCOL AND HALF WATER SHOULD BE USED IN FREEZING TEMPERATURES DOWN TO -40.F. TO PREVENT PROBE MISALIGNMENT, TEST HOSES AND ADAPTERS MUST BE SUPPORTED IN SUCH A WAY AS TO ADD NO EXTRA WEIGHT ON PROBES.
2) Repeat steps 2.D.(2)(b)2) thru 5).
3) Remove adapter and vinyl adhesive tape from upper right pitot-static probe.
CAUTION: TO PREVENT PITOT-STATIC PROBE DAMAGE, VISUALLY
_______
CHECK EACH PROBE AND VERIFY NO PIECES OF COLORED
TAPE REMAIN ON PROBE.
(e) Test auxiliary pitot system No. 2 for leakage.
CAUTION: TO PREVENT INSTRUMENT/EQUIPMENT DAMAGE, KEEP RATE
_______ OF PITOT PRESSURE CHANGE BELOW 300 KNOTS PER MINUTE AND DIFFERENTIAL PRESSURE BETWEEN 0 AND 10 INCHES OF MERCURY.
1) Connect test equipment as described in paragraph (2)(a), to lower right pitot-static probe.
CAUTION: ENSURE THAT PROBE ADAPTER IS FLUSHED WITH WATER
_______ BEFORE ATTACHING ADAPTER TO PROBE, OR PROBE AND/OR ADAPTER MAY BE DAMAGED. A SOLUTION CONSISTING OF HALF PURE ETHYLENE GLYCOL AND HALF WATER SHOULD BE USED IN FREEZING TEMPERATURES DOWN TO -40.F. TO PREVENT PROBE MISALIGNMENT, TEST HOSES AND ADAPTERS MUST BE SUPPORTED IN SUCH A WAY AS TO ADD NO EXTRA WEIGHT ON PROBES.
2) On LH 001-070; AF 101-150, 157, 161, 183, 184; AZ 231 WITHOUT SB 27-2343, AND AZ 201-230, 232-280; SN 301-350; IB ALL; less airplanes incorp SB 27-2297,
open TE FLAP LOAD RELIEF circuit breaker on P12 panel.
WARNING: FAILURE TO OPEN TE FLAP LOAD RELIEF CIRCUIT
_______ BREAKER MAY RESULT IN INJURY TO PERSONNEL.
3) Repeat steps 2.D.(2)(b)2) thru 5).
EFFECTIVITY
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4) Remove adapter and vinyl adhesive tape from lower right pitot- static probe.
CAUTION: TO PREVENT PITOT-STATIC PROBE DAMAGE, VISUALLY
_______
CHECK EACH PROBE AND VERIFY NO PIECES OF COLORED
TAPE REMAIN ON PROBE.
(3) Test Static Systems
(a) Test captain's static system for leakage. 1) Connect static (vacuum) source in pneumatic test unit through static control valve to static cutoff valve.
2) Using pitot-static probe adapter, connect forward set of static ports (S1) on upper left probe to static cutoff valve through static system test gages and flow restrictors.
CAUTION: ENSURE THAT PROBE ADAPTER IS FLUSHED WITH WATER
_______ BEFORE ATTACHING ADAPTER TO PROBE, OR PROBE AND/OR ADAPTER MAY BE DAMAGED. A SOLUTION CONSISTING OF HALF PURE ETHYLENE GLYCOL AND HALF WATER SHOULD BE USED IN FREEZING TEMPERATURES DOWN TO -40.F. TO PREVENT PROBE MISALIGNMENT, TEST HOSES AND ADAPTERS MUST BE SUPPORTED IN SUCH A WAY AS TO ADD NO EXTRA WEIGHT ON PROBES.
NOTE: Vacuum may be applied to a static system through
____ either drain fittings (using suitable adapters) or pitot-static probe for that particular system. This procedure is written for preferred connections and no further mention will be made of these options.
EFFECTIVITY
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3) Seal the aft static ports (S2) on lower right pitot-static
probe with vinyl adhesive tape.
WARNING: WHEN THE STATIC PORTS ARE COVERED, MAKE SURE THAT_______
CONDITION IS VISIBLE FROM THE GROUND. FAILURE TO
OBSERVE AND REMOVE COVERINGS OVER STATIC PORTS
BEFORE FLIGHT MAY CAUSE LARGE ERRORS IN
AIRSPEED-SENSING AND ALTITUDE-SENSING SIGNALS,
WHICH MAY LEAD TO LOSS OF SAFE FLIGHT.
WARNING: WHEN THE PITOT PROBES/STATIC PORTS ARE COVERED,_______
ENSURE THAT THIS CONDITION IS VISIBLE FROM THE
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