ata 71 cfm56 3
DESCRIPTION
Boeing 737-3/-4/-500TRANSCRIPT
CFM56 CHARACTERISTICS
Series 1/200 3/4/500
Engine JT8-17A CFM56-3
Max time limit for take-off or go-around
thrust:
5 min 5 min *
Max N1 102.4% 106%
Max N2 100% 105%
Max EGT's:
Take-off (5 min limit) 650°C 930°C
Continuous 610°C 895°C
Start 575°C 725°C
Oil T's & P's
Max temperature 165°C 165°C
15 minute limit (45 minute limit on NG) 130-165°C 160-165°C
Max continuous 130°C 160°C
Min oil press 40psi 13psi (warning
light),26psi (gauge)
Min oil quantity (at dispatch) 2.25 USG 60% full (12 US Quarts) **
Starting pressures prior to starter
engagement
30psi -1/2psi per 1000' amsl
Starter duty cycle 1st attempt: 2min on, 20sec off
2nd & subsequent attempt: 2min on, 3min off
LIMITATIONS
ENGINE HAZARD AREAS - IDLE POWER
ENGINE HAZARD AREAS - TAKEOFF POWER
ENTRY/EXIT CORRIDOR (LOW IDLE)
HOW TO APPROACH DURING ENGINE MAINTENANCE RUN
POWERPLANT NOISE AREA
ENGINE DIMENSIONS
ENGINE GROUND CLEARANCE
ON CONDITION MAINTENANCE
POWERPLANT COWLING
INLET COWL
24 BOLTS AND 2 ALIGNMENT PINS AT 3
AND 9 O´CLOCK POSITIONS
INLET REMOVAL AND INSTALLATION
FAN COWL
FAN THRUST REVERSER COWL
THRUST REVERSER COWL OPENING
CAUTION: THE WING LEADING EDGE
FLAPS MUST BE RETRACTED PRIOR
TO OPENING THE THRUST REVERSER
COWL TO PREVENT DAMAGE
EQUIPMENT.
ACTUATOR LOCK ASSEMBLY
ENGINE MOUNTS
FWD ENGINE MOUNT & THRUST LINK
AFT ENGINE MOUNT
LOCATED AT THE
12 O´CLOCK
POWER PLANT DRAINS
FAN COMPARTMENT DRAINAGE
CORE COMPARTMENT DRAINAGE
