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3. Altitude............................................................................ MAINTAIN
41,000 FT OR BELOW FOR REMAINDER OF FLIGHT
4. Flight Into Known Icing Conditions ....................................... AVOID
For Right Bleed Air System:
1. Right Bleed Air Switch.............................................................. OFF
2. Isolation Valve ....................................................................... OPEN
3. Altitude............................................................................ MAINTAIN
41,000 FT OR BELOW FOR REMAINDER OF FLIGHT
4. Flight Into Known Icing Conditions ....................................... AVOID
END
Air Conditioning System Shut Down Or Inoperative
AFM 3-01-10
At altitudes above 41,000 feet with either air conditioning system selected to
OFF or inoperative, the respective engine COWL ANTI ICE must be selected
ON and the BLEED AIR ISOLATION valve selected to CLOSED.
From GIV AFM, Bleed Air System Limitations: Do not operate above
41,000 feet without both engine bleeds ON and each engine being bled by
either the air conditioning system or engine COWL ANTI ICE.
END
Quick Reference Handbook
ABNORMAL / EMERGENCY PROCEDURES REVISION 7
Page EH - 8 May 30/02
Air Conditioning System Airflow Hot Or Uncontrollable
AFM 3-01-20
If cool air is not produced in either AUTO, MANUAL OR OFF mode:
1. Affected Air Conditioning PACK Switch ....................................OFF
If cool air is not produced in either AUTO, MANUAL or OFF
mode, the water separator may be frozen, preventing cool air
from flowing through it. To determine whether the water separator
is frozen or the Air Cycle Machine (ACM) is developing a problem,
select the affected Air Conditioning PACK switch to OFF.
Allow ten (10) minute time period to elapse, then:
2. Affected Air Conditioning PACK Switch ........... RESELECT TO ON
If cool airflow is present, the water separator is most likely the
problem.
If cool airflow is present:
3. Temperature Setting ......................SELECT SLIGHTLY WARMER
Select a slightly warmer temperature to preclude water separator
from re-freezing.
If warm or hot airflow returns:
4. Malfunctioning Pack ................................................AS REQUIRED
BY FLIGHT CONDITIONS / MISSION REQUIREMENTS
If warm or hot airflow returns, the ACM is developing a problem.
Depending on flight conditions or mission requirements, the
malfunctioning air conditioning pack should be managed as
required. See Air Conditioning System Shut Down Or
Inoperative, page EH-7, for bleed air requirements with the air
conditioning packs shut off.
END
Left or Right Cooling Turbine Hot AFM 3-01-30
On ground only:
1. Air conditioning flow control and shutoff valve will automatically
close.
2. Associated Air Conditioning Pack Switch..................................OFF
Continued on next page →
Quick Reference Handbook
REVISION 7 ABNORMAL / EMERGENCY PROCEDURES
May 30/02 Page EH - 9
Left or Right Cooling Turbine Hot, ctd… AFM 3-01-30
In flight:
1. Current Bleed Air Configuration......................................... ASSESS
If COWL and/or WING ANTI ICE is selected ON, see
Temperature Range for Cowl Anti-Icing chart, page EH-10, to
determine whether the use of anti-ice is required.
If COWL and/or WING ANTI-ICE is required, consider departing
icing conditions before proceeding to Step 2 OR if COWL and / or
WING ANTI-ICE is ON but is not required:
2. Appropriate COWL / WING ANTI-ICE ..................................... OFF
3. Temperature Control Selector Switch (Affected Pack) ....................
..............................................................SELECT WARMER TEMP
4. One (1) Minute ...............................................ALLOW TO ELAPSE
If COOL TURB HOT message remains displayed:
5. Affected Pack Switch......................................... OFF (ONE ONLY)
CAUTION: DO NOT TURN OFF BOTH PACK SWITCHES AT HIGH
ALTITUDE.
If both air conditioning packs are affected, select only one pack
switch OFF.
If COWL ANTI-ICE is required or if airplane altitude is above 41,000
feet:
6. COWL ANTI-ICE........................................................................ON
Same bleed air system with pack shut down.
If COOL TURB HOT message persists for second pack:
7. Descent To Lower Altitude .........................................COMMENCE
8. Crew Oxygen Masks / Regulators....................................ON/100%
9. Passenger Oxygen Masks ...............................................................
...........................................MANUALLY DEPLOY (IF REQUIRED)
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