WARNING:KEEP ALL PERSONS OUT OF THE DANGEROUS AREA
ENTRY DURING ENGINE OPERATION. IF THE SURFACE
5 FEET CORRIDOR WIND IS MORE THAN 25 KNOTS, INCREASE THE
DANGEROUS AREA AT THE ENGINE INLET BY 20
PERCENT.
INLET
HAZARD CLEAN THE RAMP IF THERE IS SNOW, ICE, WATER,
AREA OIL OR OTHER CONTAMINATION, OR MOVE THE
AIRPLANE TO A LOCATION THAT IS CLEAN.
MAKE SURE THAT ALL PERSONS ARE SAFE BEFORE
YOU START THE ENGINE.
MAKE SURE THE PERSONS IN THE FLIGHT COMPART-
MENT CAN SPEAK TO ALL PERSONS NEAR THE
DANGEROUS AREA DURING ENGINE OPERATION.
OBEY ALL OF THE GROUND SAFETY PRECAUTIONS
FOR THE ENGINES.
THE ENGINES CAN PULL PERSONS OR UNWANTED
MATERIALS INTO THEM AND CAUSE INJURIES TO
PERSONS OR DAMAGE TO EQUIPMENT.
(2.1 METERS) 7 FEET CORRIDOR ENTRY _____NOTE: ENGINE ONLY. THE DANGEROUS AREA AROUND THE THE DANGEROUS AREA IS SHOWN FOR THE RIGHT
LEFT ENGINE HAS THE SAME DIMENSIONS. WHEN
YOU OPERATE TWO ENGINES, THE DANGEROUS AREA
IS THE SUM OF THE LEFT AND RIGHT DANGEROUS
ENTRY CORRIDOR AREAS.
A EXHAUST HAZARD
AREA
FORWARD THRUST AT MINIMUM IDLE POWER - COWLING CLOSED
Engine Inlet and Exhaust Hazard Areas
Figure 201 (Sheet 1)
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
160 FEET (49 METERS)
SEEA
5 FEET
(1.5 METERS)
7-FOOT RADIUS
(2.1 METERS)
HAZARD AREA
JET WAKE VELOCITY IS MORE
THAN 35 MPH (56 KPH)
(30 KNOTS) (50 FT/SEC)
_______WARNING: KEEP ALL PERSONS OUT OF THE DANGEROUS AREA
DURING ENGINE OPERATION. IF THE SURFACE
WIND IS MORE THAN 25 KNOTS, INCREASE THE
DANGEROUS AREA AT THE ENGINE INLET BY 20
PERCENT.
CLEAN THE RAMP IF THERE IS SNOW, ICE, WATER,
OIL OR OTHER CONTAMINATION, OR MOVE THE
AIRPLANE TO A LOCATION THAT IS CLEAN.
MAKE SURE THAT ALL PERSONS ARE SAFE BEFORE
YOU START THE ENGINE.
MAKE SURE THE PERSONS IN THE FLIGHT COMPART-
MENT CAN SPEAK TO ALL PERSONS NEAR THE
DANGEROUS AREA DURING ENGINE OPERATION.
OBEY ALL OF THE GROUND SAFETY PRECAUTIONS
FOR THE ENGINES.
THE ENGINES CAN PULL PERSONS OR UNWANTED
MATERIALS INTO THEM AND CAUSE INJURIES TO
PERSONS OR DAMAGE TO EQUIPMENT.
NOTE:_____ THE DANGEROUS AREA IS SHOWN FOR THE RIGHT
ENGINE ONLY. THE DANGEROUS AREA AROUND THE
LEFT ENGINE HAS THE SAME DIMENSIONS. WHEN
YOU OPERATE TWO ENGINES, THE DANGEROUS AREA
IS THE SUM OF THE LEFT AND RIGHT DANGEROUS
AREAS.
45`
B FORWARD THRUST AT MINIMUM IDLE POWER - COWLING OPEN Engine Inlet and Exhaust Hazard Areas Figure 201 (Sheet 2)
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71-00-00
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
590 FEET (180 METERS)
SEE C
HAZARD AREA
JET WAKE VELOCITY IS MORE
THAN 35 MPH (56 KPH)
(30 KNOTS) (50 FT/SEC)
9 FEET _______KEEP ALL PERSONS OUT OF THE DANGEROUSWARNING:(2.7 METERS)
AREA DURING ENGINE OPERATION. IF THE SURFACE WIND IS MORE THAN 25 KNOTS, INCREASE THE DANGEROUS AREA AT THE ENGINE INLET BY 20 PERCENT.
CLEAN THE RAMP IF THERE IS SNOW, ICE, WATER, OIL OR OTHER CONTAMINATION, OR MOVE THE AIRPLANE TO A LOCATION THAT IS CLEAN.
MAKE SURE THAT ALL PERSONS ARE SAFE BEFORE YOU START THE ENGINE.
MAKE SURE THE PERSONS IN THE FLIGHT COMPARTMENT CAN SPEAK TO ALL PERSONS NEAR THE DANGEROUS AREA DURING ENGINE OPERATION.
OBEY ALL OF THE GROUND SAFETY PRE-CAUTIONS FOR THE ENGINES.
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