737 Flight Crew Operations Manual
Performance Inflight
Advisory Information
737-800WSFP1/CFM56-7B26
FAA
Category C/N Brakes
Boeing Proprietary. Copyright © Boeing. May be subject to export restrictions under EAR. See title page for details.
PI.12.30 D6-27370-866-EGP
ADVISORY INFORMATION
Recommended Brake Cooling Schedule
Adjusted Brake Energy Per Brake (Millions of Foot Pounds)
No Reverse Thrust
Two Engine Detent Reverse Thrust
Cooling Time (Minutes) - Category C Steel Brakes
Cooling Time (Minutes) - Category N Carbon Brakes
Observe maximum quick turnaround limit.
Table shows energy per brake added by a single stop with all brakes operating. Energy is assumed to be
equally distributed among the operating brakes. Total energy is the sum of residual energy plus energy
added.
Add 1.0 million foot pounds per brake for each taxi mile.
When in caution zone, wheel fuse plugs may melt. Delay takeoff and inspect after one hour. If overheat occurs
after takeoff, extend gear soon for at least 7 minutes.
When in fuse plug melt zone, clear runway immediately. Unless required, do not set parking brake. Do not
approach gear or attempt to taxi for one hour. Tire, wheel and brake replacement may be required. If
overheat occurs after takeoff, extend gear soon for at least 12 minutes.
Brake temperature monitor system (BTMS) indication on CDS systems page may be used 10 to 15 minutes
after airplane has come to a complete stop or inflight with gear retracted to determine recommended cooling
schedule.
REFERENCE BRAKE ENERGY PER BRAKE (MILLIONS OF FOOT POUNDS)
EVENT 102030405060708090
RTO MAX MAN102030405060708090
LANDING
MAX MAN 7.8 16.3 25.3 34.7 44.7 55.0 65.7 76.6 87.9
MAX AUTO 7.5 15.4 23.6 32.4 41.8 51.8 62.5 74.1 86.5
AUTOBRAKE 3 7.3 14.7 22.3 30.2 38.6 47.6 57.4 68.1 80.0
AUTOBRAKE 2 7.0 13.8 20.5 27.4 34.8 42.7 51.5 61.3 72.4
AUTOBRAKE 1 6.7 13.1 19.2 25.3 31.8 38.8 46.6 55.4 65.5
REFERENCE BRAKE ENERGY PER BRAKE (MILLIONS OF FOOT POUNDS)
EVENT 102030405060708090
RTO MAX MAN102030405060708090
LANDING
MAX MAN 7.0 14.6 22.8 31.4 40.5 49.9 59.7 69.8 80.0
MAX AUTO 5.8 12.3 19.5 27.2 35.6 44.5 53.9 63.7 74.1
AUTOBRAKE 3 4.3 9.2 14.7 20.7 27.2 34.4 42.0 50.2 59.0
AUTOBRAKE 2 2.5 5.6 9.1 13.1 17.8 23.0 28.8 35.2 42.3
AUTOBRAKE 1 1.8 3.8 6.1 8.8 11.9 15.5 19.6 24.4 29.8
EVENT ADJUSTED BRAKE ENERGY (MILLIONS OF FOOT POUNDS)
16 & BELOW 17 20 23 25 28 32 33 TO 48 49 & ABOVE
BRAKE TEMPERATURE MONITOR SYSTEM INDICATION ON CDS
UP TO 2.4 2.6 3.1 3.5 3.9 4.4 4.9 5.0 TO 7.5 7.5 & ABOVE
INFLIGHT
GEAR DOWN
NO SPECIAL
PROCEDURE
REQUIRED
123456
CAUTION
FUSE PLUG
MELT ZONE
GROUND 10 20 30 40 50 60
EVENT ADJUSTED BRAKE ENERGY (MILLIONS OF FOOT POUNDS)
16 & BELOW 17 19 20.9 23.5 26.9 29.4 30 TO 41 41 & ABOVE
BRAKE TEMPERATURE MONITOR SYSTEM INDICATION ON CDS
UP TO 2.5 2.6 3 3.3 3.8 4.5 4.9 5.0 TO 7.1 7.1 & ABOVE
INFLIGHT
GEAR DOWN
NO SPECIAL
PROCEDURE
REQUIRED
145677.6
CAUTION
FUSE PLUG
MELT ZONE
GROUND 6.7 16.0 24.1 34.2 45.9 53.3
September 15, 2016
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