DOC AIRBUS | AMM A320FStart the Engine - (Cold Weather) [PW11]
TASK 71-00-00-860-826-A
Start the Engine - (Cold Weather)
Use this procedure to start the engine in cold weather warmer than -40 degrees F (-40 degrees C) and in very cold weather colder than -40 degrees F (-40 degrees C). It is usually not necessary to increase the temperature of an engine before you start it in cold weather.
For normal start procedures, refer to automatic start procedure (Ref. TASK 71-00-00-860-82300) or manual start procedure (Ref. TASK 71-00-00-860-82200).
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Referenced Information
3. Job Set-up
Subtask 71-00-00-941-140-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 02:31:29 UTC
Start the Engine - (Cold Weather)
WARNING:
BE CAREFUL WHEN YOU DO WORK ON THE ENGINE AFTER SHUTDOWN. THE ENGINE CAN STAY HOT FOR A LONG TIME. IF YOU DO NOT OBEY THIS INSTRUCTION, INJURY CAN OCCUR.
1. Reason for the JobUse this procedure to start the engine in cold weather warmer than -40 degrees F (-40 degrees C) and in very cold weather colder than -40 degrees F (-40 degrees C). It is usually not necessary to increase the temperature of an engine before you start it in cold weather.
For normal start procedures, refer to automatic start procedure (Ref. TASK 71-00-00-860-82300) or manual start procedure (Ref. TASK 71-00-00-860-82200).
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | CONTAINER 20L (5 USGAL) |
| No specific | 1 | HOT AIR SOURCE |
| No specific | 1 | WRENCH - SOCKET |
| 636-1100-4GSE | 1 | INLET COWL LIP COVER |
| 636-3000-11GSE | 1 | TR C DUCT COVER |
| 636-4000-23GSE | 1 | EXHAUST COVER |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 24-41-00-861-002-A | Energize the Aircraft Electrical Circuits from the External Power |
| TASK 24-41-00-861-002-A-01 | Energize the Aircraft Electrical Circuits from the APU |
| TASK 24-41-00-861-002-A-02 | Energize the Aircraft Electrical Circuits from Engine 1(2) |
| TASK 31-60-00-860-001-A | EIS Start Procedure |
| TASK 71-00-00-860-822-A | Start the Engine (Normal Manual Start) |
| TASK 71-00-00-860-823-A | Start the Engine (Normal Automatic Start) |
| TASK 71-00-00-860-833-A | Procedure to Prevent Engine Motoring |
| TASK 72-00-00-000-805-A | Removal of the High (N2) Rotor-Turning Equipment |
| TASK 72-00-00-400-805-A | Installation of the High (N2) Rotor Turning Equipment |
Subtask 71-00-00-941-140-A ** ON A/C NOT FOR ALL
A. Safety Precautions
(1) Do the procedure to prevent engine motoring
(Ref. AMM TASK 71-00-00-860-833)
4. Procedure(1) Do the procedure to prevent engine motoring
(Ref. AMM TASK 71-00-00-860-833)
CAUTION:
WIPE CLEAN ALL PARTS AND TOOLS AS NECESSARY TO REMOVE UNWANTED DEBRIS AND PREVENT DAMAGE TO THE ENGINE.
CAUTION:
REMOVE THE PROTECTION COVERS FROM THE OPENINGS AS NECESSARY TO PREVENT ENGINE DAMAGE.
Subtask 71-00-00-869-359-A ** ON A/C NOT FOR ALL A. For cold weather conditions with air temperatures warmer than -40 deg.F (-40.00 deg.C), do the steps that follow:
(1) Apply heat with the HOT AIR SOURCE to the engine before normal start for the conditions that follow:
(a) The rotors are locked with ice.
(b) There is ice and snow on the cowl, external surfaces and thrust reverser joints.
(c) There is ice and snow on the acoustic panels, inlet cowl and turbine exhaust ducts.
Subtask 71-00-00-210-105-A ** ON A/C NOT FOR ALL (1) Apply heat with the HOT AIR SOURCE to the engine before normal start for the conditions that follow:
(a) The rotors are locked with ice.
(b) There is ice and snow on the cowl, external surfaces and thrust reverser joints.
(c) There is ice and snow on the acoustic panels, inlet cowl and turbine exhaust ducts.
B. Check if the fan rotor, the Low Pressure Compressor (LPC) and the Low Pressure Turbine (LPT) are locked with ice as follows:
(2) Increase the temperature of the engine with the HOT AIR SOURCE if the fan rotor does not turn freely as follows:
(c) Apply heat to the engine gaspath until the fan rotor turns freely.
Subtask 71-00-00-210-106-A ** ON A/C NOT FOR ALL CAUTION:
DO NOT START THE ENGINE IF THERE IS ICE ON THE FAN BLADES. ICE ON THE FAN BLADES CAN CAUSE ROTOR IMBALANCE AND DAMAGE TO THE ENGINE.
(1) Turn the fan clockwise as seen from the rear (normal operation). If the fan is accidentally turned counterclockwise, there can be some resistance. This condition is permitted, but do not continue to turn the fan in the counterclockwise (incorrect) direction. (2) Increase the temperature of the engine with the HOT AIR SOURCE if the fan rotor does not turn freely as follows:
CAUTION:
DO NOT APPLY MORE THAN 179 DEGREES FAHRENHEIT (82 DEGREES CELSIUS) OF HEAT AT THE OIL TANK ACCESS DOOR AND ENGINE INLET. ADJUST THE HEATER OUTPUT FLOW AND USE A HAND-HELD THERMOCOUPLE TO MAKE SURE THAT THE MAXIMUM TEMPERATURE IS IN THE LIMITS. IF YOU DO NOT OBEY THESE INSTRUCTIONS, DAMAGE TO ENGINE PARTS CAN OCCUR.
(a) Install the 636-1100-4GSE INLET COWL LIP COVER, the 636-3000-11GSE TR C DUCT COVER and the 636-4000-23GSE EXHAUST COVER. NOTE: The core compartment vent must be left open to allow the air from the HOT AIR SOURCE to flow through gaspath, into the core compartment and out of the core vent.
(b) Attach the applicable hot-air duct from the HOT AIR SOURCE to the engine inlet cowl. (c) Apply heat to the engine gaspath until the fan rotor turns freely.
C. Check the fan cowl and thrust reverser doors as follows:
(1) Do a visual inspection of fan cowl and thrust reverser doors for ice and snow.
(2) Apply heat as necessary to melt the snow or ice.
(3) Remove all the melted snow and ice.
Subtask 71-00-00-220-052-A ** ON A/C NOT FOR ALL (1) Do a visual inspection of fan cowl and thrust reverser doors for ice and snow.
(2) Apply heat as necessary to melt the snow or ice.
(3) Remove all the melted snow and ice.
D. Check if the High Pressure Compressor (HPC) and the High Pressure Turbine (HPT) turn freely as follows:
(2) Turn the N2 rotor with the turning equipment or the WRENCH - SOCKET.
(a) The N2 rotor must turn freely for 360 degrees.
(b) If the N2 rotor does not turn freely, remove the N2 rotor turning equipment or the WRENCH - SOCKET and install the gearbox crank pad cover (Ref. AMM TASK 72-00-00-000-805).
(3) Apply heat to the engine gaspath until the N2 rotor turns freely.
(a) Install the 636-4000-23GSE EXHAUST COVER, as necessary.
(b) Attach the applicable hot-air duct from the HOT AIR SOURCE to the engine intake cowl, as necessary.
(c) Apply heat to the engine gaspath until the exhaust gas temperature reaches 82 deg.F (28 deg.C).
Subtask 71-00-00-880-052-A ** ON A/C NOT FOR ALL NOTE: If the engine is not run for eight hours, the main gearbox can have oil levels higher that the N2 crank pad cover. Use a CONTAINER 20L (5 USGAL) to collect the oil when you remove the N2 crank pad cover.
(1) Remove the gearbox crank pad cover and install the N2 turning equipment (Ref. AMM TASK 72-00-00-400-805) or the WRENCH - SOCKET 9/16 inch. (2) Turn the N2 rotor with the turning equipment or the WRENCH - SOCKET.
(a) The N2 rotor must turn freely for 360 degrees.
(b) If the N2 rotor does not turn freely, remove the N2 rotor turning equipment or the WRENCH - SOCKET and install the gearbox crank pad cover (Ref. AMM TASK 72-00-00-000-805).
(3) Apply heat to the engine gaspath until the N2 rotor turns freely.
(a) Install the 636-4000-23GSE EXHAUST COVER, as necessary.
(b) Attach the applicable hot-air duct from the HOT AIR SOURCE to the engine intake cowl, as necessary.
(c) Apply heat to the engine gaspath until the exhaust gas temperature reaches 82 deg.F (28 deg.C).
E. For very cold weather conditions with temperatures colder than -40 deg.F (-40.00 deg.C), do the steps that follow:
(1) Warm air must be blown inside the nacelle at two locations to increase the IDG and engine oil temperature to warmer than -38.2 deg.F (-39.00 deg.C). The fan compartment and core compartment must be warmed simultaneously to warm as much of the IDG and engine oil, as possible.
1 Make sure that these circuit breakers are closed.
a FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
a Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
b Do the EIS start procedure (upper ECAM DU and lower ECAM DU only)
(Ref. AMM TASK 31-60-00-860-001).
c On the ECAM control panel, push the ELEC key
d On the lower ECAM DU, the ELEC page comes into view
3 On overhead panel, on ELEC panel 35VU:
4 For ENG 1, push the GEN 1 pushbutton switch.
a The OFF legend of the GEN 1 pushbutton switch is off.
5 For ENG 2, push the GEN 2 pushbutton switch.
a The OFF legend of the GEN 2 pushbutton switch is off.
6 Read the IDG 1 and/or IDG 2 temperature at bottom of lower ECAM DU
(b) If the engine oil temperature as shown on ECAM is colder than -40 deg.F (-40.00 deg.C) do the steps that follow:
1 Increase the temperature of the engine oil in the core compartment as follows.
2 Install the 636-1100-4GSE INLET COWL LIP COVER the 636-3000-11GSE TR C DUCT COVER and the 636-4000-23GSE EXHAUST COVER.
4 Open the oil tank access door on the left side of the fan cowl.
5 Attach a duct from the HOT AIR SOURCE through the oil tank access door directed at the oil tank.
6 Apply heat to the oil tank and engine inlet until the IDG and engine oil is a minimum of -38.2 deg.F (-39.00 deg.C).
(c) Prepare the engine for normal operation as follows:
2 Close the oil tank access door on the fan cowl.
Subtask 71-00-00-210-107-A ** ON A/C NOT FOR ALL (1) Warm air must be blown inside the nacelle at two locations to increase the IDG and engine oil temperature to warmer than -38.2 deg.F (-39.00 deg.C). The fan compartment and core compartment must be warmed simultaneously to warm as much of the IDG and engine oil, as possible.
NOTE: To view engine oil temperature indication, with the engine shutdown, select the ENG FADEC GND PWR pushbutton. This will apply aircraft electrical DC power to the engine FADEC. Oil temperature can be read on the engine secondary ECAM page. If the actual engine oil temperature is less than -72.4 deg.F (-58.00 deg.C), the value will be displayed as X's. Therefore, the engine must be warmed to at least -72.4 deg.F (-58.00 deg.C), before an accurate value can be read on the secondary ECAM page.
(a) To view the IDG Oil temperature with the engine shutdown: 1 Make sure that these circuit breakers are closed.
a FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
- 2XU1
- 2XU2
a Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
b Do the EIS start procedure (upper ECAM DU and lower ECAM DU only)
(Ref. AMM TASK 31-60-00-860-001).
c On the ECAM control panel, push the ELEC key
d On the lower ECAM DU, the ELEC page comes into view
3 On overhead panel, on ELEC panel 35VU:
4 For ENG 1, push the GEN 1 pushbutton switch.
a The OFF legend of the GEN 1 pushbutton switch is off.
5 For ENG 2, push the GEN 2 pushbutton switch.
a The OFF legend of the GEN 2 pushbutton switch is off.
6 Read the IDG 1 and/or IDG 2 temperature at bottom of lower ECAM DU
(b) If the engine oil temperature as shown on ECAM is colder than -40 deg.F (-40.00 deg.C) do the steps that follow:
1 Increase the temperature of the engine oil in the core compartment as follows.
2 Install the 636-1100-4GSE INLET COWL LIP COVER the 636-3000-11GSE TR C DUCT COVER and the 636-4000-23GSE EXHAUST COVER.
NOTE: The core compartment vent must be left open to allow the air from the air heater to flow through gaspath, into the core compartment and out of the core vent.
3 Attach the correct hot air duct from the HOT AIR SOURCE to the engine inlet cowl cover. 4 Open the oil tank access door on the left side of the fan cowl.
5 Attach a duct from the HOT AIR SOURCE through the oil tank access door directed at the oil tank.
6 Apply heat to the oil tank and engine inlet until the IDG and engine oil is a minimum of -38.2 deg.F (-39.00 deg.C).
(c) Prepare the engine for normal operation as follows:
CAUTION:
DO NOT APPLY MORE THAN 179 DEGREES FAHRENHEIT (82 DEGREES CELSIUS) OF HEAT AT THE OIL TANK ACCESS DOOR AND ENGINE INLET. ADJUST THE HEATER OUTPUT FLOW AND USE A HAND-HELD THERMOCOUPLE TO MAKE SURE THAT THE MAXIMUM TEMPERATURE IS IN THE LIMITS. IF YOU DO NOT OBEY THESE INSTRUCTIONS, DAMAGE TO ENGINE PARTS CAN OCCUR.
1 Remove the hot air ducts from the engine inlet and oil tank access door. 2 Close the oil tank access door on the fan cowl.
NOTE: The need for the IDG and engine oil to be heated through the oil tank and engine inlet can be prevented with periodic engine runs. Before the oil temperature decreases to colder than -40 deg.F (-40 deg.C), the engine can be started and warmed up for idle.
This warm-up must be done again as necessary to keep the oil temperature at -40 deg.F (-40 deg.C) or warmer before start-up for dispatch.
This warm-up must be done again as necessary to keep the oil temperature at -40 deg.F (-40 deg.C) or warmer before start-up for dispatch.
F. Do a visual inspection of the intake cowl and the engine core exhaust nozzle for ice or snow
Subtask 71-00-00-860-229-A ** ON A/C NOT FOR ALL CAUTION:
REMOVE THE PROTECTION COVERS FROM THE OPENINGS AS NECESSARY TO PREVENT ENGINE DAMAGE.
CAUTION:
WIPE CLEAN ALL PARTS AND TOOLS AS NECESSARY TO REMOVE UNWANTED DEBRIS AND PREVENT DAMAGE TO THE ENGINE.
(1) Remove all ice and snow. NOTE: The engine warming procedure must be repeated after one hour has passed since the warm air was removed, or if the engine or IDG oil temperature goes below -40 deg.F (-40 deg.C).
(2) Examine the assembly for foreign objects, damage, and correct assembly.