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Normal Procedures -
Amplified Procedures
Boeing 737 Operations Manual
Fire extinguisher - Check and stow
Verify safetied.
Circuit breakers (P-6)
Check
Verify circuit breakers are in or collared in compliance with dispatch
requirements.
[Option]
VOICE RECORDER switch
As required
Flight recorder
Test
FLIGHT RECORDER OFF light - Illuminated
FLIGHT RECORDER test switch - TEST
FLIGHT RECORDER OFF light - Extinguished
FLIGHT RECORDER test switch - NORMAL
MACH AIRSPEED WARNING TEST switches
Push
Verify clacker sounds.
STALL WARNING TEST switches
Push
Verify control column vibration when each switch is pushed.
Note: The stall warning test requires that AC transfer busses are
powered for up to 4 minutes.
Note: With hydraulic power off, the leading edge flaps may droop
enough to cause an asymmetry signal, resulting in a failure
of the stall warning system test. Should this occur, place the
“B” system electric pump ON and retract the flaps. When
flaps are retracted repeat the test.
[Option]
EVACUATION activation switch
OFF
Guard - Down
EVACUATION light - Extinguished
REVERSER lights
Extinguished
EEC switches
ON
NP.20.4
Normal Procedures -
Amplified Procedures
Boeing 737 Operations Manual
ALTERNATE lights - Extinguished
PASSENGER OXYGEN switch
NORMAL
Guard - Down
PASS OXY ON light - Extinguished
CAUTION: Switch activation will cause deployment of
passenger oxygen masks.
CREW OXYGEN pressure indicator
Check
Verify pressure meets dispatch requirements.
SERVICE INTERPHONE switch
As required
GPS light
Extinguished
IRS mode selectors
NAV
Note: Prior to commencing the alignment procedure the airplane must
be parked and not moved until alignment is complete and the
ALIGN lights extinguish.
Verify both ON DC lights illuminate momentarily followed by steady
illumination of the ALIGN lights. The ALIGN lights will remain
illuminated until the IRS enters the NAV mode.
[Option]
Emergency locator transmitter switch
ARM
PSEU light
Extinguished
Circuit breakers (P-18)
Check
Verify circuit breakers are in or collared in compliance with dispatch
requirements.
Crash axe
Stowed
Exterior Inspection
Prior to each flight, the flight crew must accomplish or verify that the maintenance
crew has accomplished the following checks.
Note: Alert ground personnel before pressurizing hydraulic system.
ELECTRIC HYDRAULIC PUMP switches
ON
NP.20.5
Normal Procedures -
Amplified Procedures
Boeing 737 Operations Manual
System A and B pressure - 2800 PSI minimum
Parking brake
Set
Parking brake warning light - Illuminated
Exterior lights
Check
General airplane condition
Check
Check airplane free of damage and fluid leakage.
Probes, sensors, ports, vents and drains
Unobstructed
Doors, latches and access panels (not in use)
Properly secured
Tires, brakes and wheels
Check
If brake wear indicator pins are even with brake housing, check with
maintenance.
Gear struts and doors
Check
Verify door seals secure, impact fittings intact, and struts not fully
compressed.
Ground locking pins
Removed
Nose gear steering lockout pin
Check
Installed if pushback or tow out will be accomplished, otherwise
removed.
Nose wheel snubbers
In place
Wheel well light switches
NORMAL
Oxygen pressure relief green disc
In place
Cargo compartments
Check
Check condition of compartments, tie-downs and lights.
Ram air deflector door
Extended
Flight control surfaces
Unobstructed
Check all surfaces clear of ice, snow, or frost.
Fuel measuring sticks
Check
NP.20.6
Normal Procedures -
Amplified Procedures
Boeing 737 Operations Manual
Verify measuring sticks agree with alignment marks.
Wing Surfaces
Check
Visually inspect the lower wing surface. If there is frost or ice on the
lower surface outboard of measuring stick 4, there may also be frost
or ice on the upper surface. The distance that frost extends outboard
of measuring stick 4 can be used as an indication of the extent of frost
on the upper surface.
Note: Takeoff with light coatings of frost, up to 1/8 inch (3mm) in
thickness on lower wing surfaces due to cold fuel, is
permissible; however, all leading edge devices, all control
surfaces, tab surfaces, upper wing surfaces and balance
panel cavities must be free of snow or ice.
Note: Takeoff with light coatings of frost, up to 1/8 inch (3mm) in
thickness on lower wing surfaces due to cold fuel, is
permissible; however, all leading edge devices, all control
surfaces, tab surfaces, upper wing surfaces, winglet
surfaces and balance panel cavities must be free of snow or
ice.
A & B hydraulic reservoir quantity indicators
RF or above
Brake accumulator indicator
2800 psi minimum
APU fire control handle
UP
Outflow valve
Full open
[737-800]
Tail skid
Check
Replace shoe if worn to wear dimple.
Replace cartridge assembly if warning decal is red.
Engine fire extinguishers
Check
Verify pressure adequate per bottle data plate.
ELECTRIC HYDRAULIC PUMP switches
OFF
Exterior lights
As required
NP.20.7
Normal Procedures -
Amplified Procedures
Boeing 737 Operations Manual
Flight Deck Preparation - Captain or First Officer
Light test
Test
Master LIGHTS test and dim switch - TEST
Use scan flow to check all lights flashing or illuminated. Use
individual test switches or push to test feature to check appropriate
lights which do not illuminate during the light test. The fire
warning lights are not checked during this test.
Master LIGHTS test and dim switch - As desired
FMC/CDU
Set present position
POS INIT page - Select
Using the most accurate information available, enter present
position on the SET IRS POS line. Confirm that the box prompts
are replaced by the entered present position.
NP.20.8
Normal Procedures -
Amplified Procedures
Boeing 737 Operations Manual
Flight Deck Preparation - Captain
Escape strap
Check
Ensure strap is connected to structure.
Sun visors and smoke goggles
Stowed
Oxygen and interphone
Check
Audio control panel - Set
[Option - Microphone selector]
Push FLIGHT INTERPHONE transmitter selector and receiver
switches. Adjust volume on FLIGHT INTERPHONE receiver
and SPEAKER switches. Position microphone selector to MASK.
Oxygen panel - Set
Check mask is properly stowed and NORMAL/100% switch is at
100%.
RESET/TEST button - Push down and hold
Observe momentary yellow cross in oxygen flow indicator.
EMERGENCY/TEST selector - Push and hold
While holding RESET/TEST button down, push the
EMERGENCY/TEST selector and observe constant yellow cross
in oxygen flow indicator.
Push-To-Talk switch - I/C
While holding RESET/TEST button down and pushing the
EMERGENCY/TEST selector, simultaneously key microphone
and listen for oxygen flow sound through the overhead speaker.
Release/reset all switches.
Oxygen pressure - Check
Verify pressure meets dispatch requirements.
Flight control panel
Check
All 5 switch guards - Down
ALTERNATE FLAPS position switch - OFF
NP.20.9
Normal Procedures -
Amplified Procedures
Boeing 737 Operations Manual
YAW DAMPER switch
ON
YAW DAMPER light - Extinguished
NAVIGATION transfer and
DISPLAYS switches
AUTO & NORMAL
Fuel system
_____KGS/LBS & pumps ON
ENGINE VALVE CLOSED lights - Illuminated dim
SPAR VALVE CLOSED lights - Illuminated dim
FILTER BYPASS lights - Extinguished
CROSSFEED selector - Closed
VALVE OPEN light - Extinguished
Fuel quantity - Check
Verify total fuel quantity meets dispatch requirements.
FUEL PUMPS switches (for tanks containing fuel) - ON
Center tank fuel pump switches should be positioned ON only if
the fuel quantity in the center tank exceeds 453 kgs/1000 lbs.
LOW PRESSURE lights - Extinguished
CAUTION: If a LOW PRESSURE light does not extinguish
when the switch is positioned ON, position the
switch OFF.
CAB/UTIL power switch
ON
IFE/PASS seat power switch
ON
Electrical system
Set
STANDBY POWER switch - AUTO (guard down)
Generator drive DISCONNECT switches - Guards down
BUS TRANSFER switch - AUTO (guard down)
CIRCUIT BREAKER and PANEL light controls
As desired
EQUIPMENT COOLING switches
NORMAL
OFF lights - Extinguished
NP.20.10
Normal Procedures -
Amplified Procedures
Boeing 737 Operations Manual
EMERGENCY EXIT lights switch
ARMED
Guard - Down
NOT ARMED light - Extinguished
Passenger signs
Set
NO SMOKING switch - AUTO or ON
FASTEN BELTS switch - AUTO or ON
Windshield WIPER selectors
PARK
WINDOW HEAT switches
ON
Position switches ON at least 10 minutes before takeoff.
OVERHEAT lights - Extinguished
[Option]
ON lights - Illuminated (except at high ambient temperatures)
[Option]
OFF lights - Extinguished (except at high ambient temperatures)
PROBE HEAT switches
OFF
WING and ENGINE ANTI - ICE switches
OFF
VALVE OPEN lights - Extinguished
Hydraulics
Normal
Note: Alert ground personnel before pressurizing hydraulic
system.
System A HYDRAULIC PUMPS switches - ON
System B HYDRAULIC PUMPS switches - ON
Electric pump LOW PRESSURE lights - Extinguished
Brake pressure - 2800 PSI minimum
[Option]
MFD SYSTEM switch - Push
System A and B pressure - 2800 PSI minimum
Quantity indicators - No RF indication displayed
NP.20.11
Normal Procedures -
Amplified Procedures
Boeing 737 Operations Manual
Pressurization indicators
Check
Cabin differential pressure - Zero
Cabin altitude - Field elevation
Cabin rate of climb - Zero
[Option]
High altitude landing switch - ON light extinguished
Exterior light switches
As desired
Ignition select switch
IGN L or R
Alternate ignition select switch on subsequent starts.
[Without automatic ignition]
ENGINE START switches
OFF
[Automatic ignition]
ENGINE START switches
AUTO
EFIS control panel
Set
MINIMUMS reference selector - As desired
Select RADIO or BAROMETRIC. Adjust decision height or
altitude reference, as appropriate.
[Option]
FLIGHT PATH VECTOR switch - As desired
METERS switch - As desired
BAROMETRIC reference selector - Set
Select barometric altitude reference. Set local altimeter setting.
VOR/ADF switches - As desired
Mode selector - MAP
CENTER switch - As desired
Range selector - As desired
TRAFFIC switch - As desired
MAP switches - As desired
NP.20.12
Normal Procedures -
Amplified Procedures
Boeing 737 Operations Manual
Mode control panel
Set
When selecting a value on the MCP, ensure the corresponding display on
the instrument panel changes, if applicable.
COURSE(S) - Set and crosscheck
FLIGHT DIRECTOR switches - ON
Position the switch for the pilot flying to ON first.
AUTOTHROTTLE switch - OFF
Heading - Runway heading
Bank angle limit - As desired
Altitude - As desired
Autopilots - Disengaged
Clock
Set
TIME/DATE pushbutton - UTC time
NOSE WHEEL STEERING switch
NORM
Display select panel
Set
MAIN PANEL DISPLAY UNITS selector - NORM
LOWER DISPLAY UNIT selector - NORM
[Option - EFIS/MAP]
Left flight instruments
Set
Note: IRS alignment must be complete.
EFIS - Correct
A/T, pitch, and roll FMA’s - Blank
A/P status FMA - FD
Flight instrument indications are correct.
The NO V SPD flag is displayed until V-speeds are selected.
Verify no other flags displayed.
Altimeter - Set
MAP - Correct
Verify no flags displayed
Route - Displayed, correct
NP.20.13
Normal Procedures -
Amplified Procedures
Boeing 737 Operations Manual
[Option - PFD/ND]
Left flight instruments
Set
Note: IRS alignment must be complete.
PFD - Correct
Flight mode annunciators - Blank
AFDS status is FLT DIR
Flight instrument indications are correct.
The NO V SPD flag is displayed until V-speeds are selected.
Verify no other flags displayed.
Altimeter - Set
ND - correct
Verify no flags displayed
Route - Displayed, correct
[Option]
Integrated standby flight display
Check
Approach mode display - Blank
Set local altimeter setting
Verify flight instrument indications are correct
Verify no flags or messages are displayed.
Light controls
As desired
Engine display control panel
Set
N1 SET selector - AUTO
Permits FMC control of N1 bugs.
FUEL FLOW switch - RATE
Move switch to RESET, then RATE.
SPEED REFERENCE selector - AUTO
Permits FMC control of reference speed bugs.
AUTO BRAKE select switch
RTO
AUTO BRAKE DISARM light - Extinguished
ANTISKID INOP light
Extinguished
NP.20.14
Normal Procedures -
Amplified Procedures
Boeing 737 Operations Manual
Engine instruments
Check
[Option]
MFD ENGINE switch - Push
Note: EGT, F/F, oil pressure and oil temperature pointers and
digital readouts are not displayed until the start switch is
moved to GRD.
Primary and secondary engine indications - Normal
• engine indications display existing conditions
• no exceedance values are displayed
• engine oil quantity meets dispatch requirements
SPEED BRAKE lever
DOWN detent
Reverse thrust levers
Down
Forward thrust levers
Closed
Start levers
CUTOFF
Parking brake
Set
Parking brake warning light - Illuminated
STABILIZER TRIM cutout switches
NORMAL
Wheel well fire warning system
Test
Note: Delete this test if AC busses were powered during the fire
warning check. Alert ground personnel before this test is
accomplished with the APU operating. The fire warning light
flashes and the horn sounds on the APU ground control panel.
Test switch - Hold to OVERHEAT/FIRE
Verify fire warning bell sounds, master FIRE WARNING lights,
MASTER CAUTION lights and OVERHEAT/DET annunciator
illuminate.
Fire warning BELL CUTOUT switch - Push
Verify WARN lights and fire warning bell cancel.
WHEEL WELL fire warning light - Illuminated
[Option]
HUD system
As required
NP.20.15
Normal Procedures -
Amplified Procedures
Boeing 737 Operations Manual
[Option]
Radio tuning panel
Set
PANEL OFF light - Extinguished
Set panel - As desired
WARNING: Do not key HF radio while airplane is being fueled.
Injury to personnel or fire may result.
[Option]
VHF comm radios
Set
VHF NAVIGATION radios
Set for departure
Audio control panel
Set
ADF radios
Set
FLOOD and PANEL light controls
As desired
Weather radar
Set
Transponder
Set
RUDDER and AILERON trim
Free & zero
Check trim for freedom of movement, set trim at zero units.
STABILIZER TRIM override switch
NORMAL
Seat
Adjust
Verify positive horizontal (fore and aft) seat lock.
Rudder pedals
Adjust
Adjust rudder pedals to permit full rudder deflection and brake
application. Hold nose wheel steering wheel while moving rudder
pedals.
Papers
Aboard
FMC/CDU
Set
IDENT page - Check
Verify airplane and engine MODEL and NAV DATA ACTIVE
dates are correctly displayed.
NP.20.16
Normal Procedures -
Amplified Procedures
Boeing 737 Operations Manual
POS INIT page - Set
Verify GMT is correct. Enter local time if desired.
RTE page - Select
Enter route by company route identifier or origin and destination
airports, then waypoints and/or airways.
DEPARTURES page - Select
Select the active runway and departure/transition procedures if
known.
RTE page - Select
Verify selected departure and route. Correct route discontinuities,
ACTIVATE and EXEC.
PERF INIT page - Select
Verify total fuel quantity is displayed on the CDU and that the fuel
quantity indicators agree, and are adequate for the planned flight.
Enter gross weight or zero fuel weight, fuel reserve and cost index.
Enter cruise altitude and verify transition altitude. If desired, enter
cruise wind and ISA deviation or top-of-climb temperature.
EXEC.
DEPARTURES page - Select (if not previously entered)
Select appropriate runway and departure/transition procedures.
Select the RTE page. Verify selected departure. Correct any route
discontinuities and EXEC.
Thrust mode display - Check
[Option - Non-aspirated TAT]
Verify dashes are displayed.
[Option - Aspirated TAT]
Verify TO is displayed.
NP.20.17
Normal Procedures -
Amplified Procedures
Boeing 737 Operations Manual
[Option - FMC U 10.1 and later]
N1 LIMIT page - Select
[Option - Non-aspirated TAT]
Enter OAT
[Option - Aspirated TAT]
Check displayed OAT against reported value. Enter correct value
if necessary.
If reduced thrust takeoff is planned, enter assumed (SEL)
temperature.
If reduced thrust climb is planned, select desired mode.
[Option - FMC U 10.1 and later]
TAKEOFF REF page - Select
Verify preflight complete.
Enter takeoff flaps and V speeds.
Note: Verify N1 reference bugs reflect the full rated N1 value or
the derated N1 value if a TAKEOFF DERATE is selected.
[Option - FMC U 10.1 and later with automatic T/O thrust reduction]
TAKEOFF REF page 2/2 - Select
Enter thrust reduction altitude if different from displayed value.
Takeoff data
Review
Review takeoff data to include N1, V1, VR, V2, flap setting, zero fuel
weight, temperature, altimeter setting, gross weight, and stabilizer
trim setting.
NP.20.18
Normal Procedures -
Amplified Procedures
Boeing 737 Operations Manual
Flight Deck Preparation - First Officer
Escape strap
Check
Ensure strap is connected to structure.
Sun visors and smoke goggles
Stowed
Oxygen and interphone
Check
Audio control panel - Set
[Option - Microphone selector]
Push FLIGHT INTERPHONE transmitter selector and receiver
switches. Adjust volume on FLIGHT INTERPHONE receiver
and SPEAKER switches. Position microphone selector to MASK.
Oxygen panel - Set
Check mask is properly stowed and NORMAL/100% switch is at
100%.
RESET/TEST button - Push down and hold
Observe momentary yellow cross in oxygen flow indicator.
EMERGENCY/TEST selector - Push and hold
While holding RESET/TEST button down, push the
EMERGENCY/TEST selector and observe constant yellow cross
in oxygen flow indicator.
Push-To-Talk switch - I/C
While holding RESET/TEST button down and pushing the
EMERGENCY/TEST selector, simultaneously key microphone
and listen for oxygen flow sound through the overhead speaker.
Release/reset all switches.
Oxygen pressure - Check
Verify pressure meets dispatch requirements.
Air conditioning system
____ pack(s), bleeds ON
AIR TEMPERATURE source selector - As desired
[737-800/900]
TRIM AIR switch - ON
NP.20.19
Normal Procedures -
Amplified Procedures
Boeing 737 Operations Manual
Temperature selectors - As desired
RAM DOOR FULL OPEN lights - Illuminated
[737-600/700]
RECIRCULATION FAN switch - AUTO
[737-800/900]
RECIRCULATION FAN switches - AUTO
Air conditioning PACK switches - AUTO or HIGH
ISOLATION VALVE switch - OPEN
Engine BLEED air switches - ON
APU BLEED air switch - As required
ON unless external air is used for start.
Pressurization system
Set
FLIGHT ALTITUDE indicator - Cruise altitude
LANDING ALTITUDE indicator - Destination field elevation
Pressurization mode selector - AUTO
AUTOMATIC FAIL light - Extinguished
EFIS control panel
Set
MINIMUMS reference selector - As desired
Select RADIO or BAROMETRIC. Adjust decision height or
altitude reference, as appropriate.
[Option]
FLIGHT PATH VECTOR switch - As desired
METERS switch - As desired
BAROMETRIC reference selector - Set
Select barometric altitude reference. Set local altimeter setting.
VOR/ADF switches - As desired
Mode selector - MAP
CENTER switch - As desired
NP.20.20
Normal Procedures -
Amplified Procedures
Boeing 737 Operations Manual
Range selector - As desired
TRAFFIC switch - As desired
MAP switches - As desired
Mode control panel
Set
When selecting a value on the MCP, ensure the corresponding display on
the instrument panel changes, if applicable.
COURSE(S) - Set and crosscheck
FLIGHT DIRECTOR switches - ON
Position the switch for the pilot flying to ON first.
Clock
Set
TIME/DATE pushbutton - UTC time
Display select panel
Set
MAIN PANEL DISPLAY UNITS selector - NORM
LOWER DISPLAY UNIT selector - NORM
[Option - EFIS/MAP]
Right flight instruments
Set
Note: IRS alignment must be complete.
EFIS - Correct
A/T, pitch, and roll FMA’s - Blank
A/P status FMA - FD
Flight instrument indications are correct.
The NO V SPD flag is displayed until V-speeds are selected.
Verify no other flags displayed.
Altimeter - Set
MAP - correct
Verify no flags displayed
Route - Displayed, correct
[Option - PFD/ND]
Right flight instruments
Set
Note: IRS alignment must be complete.
NP.20.21
Normal Procedures -
Amplified Procedures
Boeing 737 Operations Manual
PFD - Correct
Flight mode annunciators - Blank
AFDS status is FLT DIR
Flight instrument indications are correct.
The NO V SPD flag is displayed until V-speeds are selected.
Verify no other flags displayed.
Altimeter - Set
ND - Correct
Verify no flags displayed
Route - Displayed, correct
GROUND PROXIMITY warning SYSTEM
TEST switch
Push momentarily
Verify switch guards down.
Verify proper operation of the following:
• BELOW G/S and GPWS INOP lights illuminate
• PULL UP and WINDSHEAR alerts illuminate
• “GLIDE SLOPE”, “PULL UP”, and “WINDSHEAR” aurals sound
• TERR FAIL and TERR TEST show on navigation displays
• terrain display test pattern shows on navigation displays
• terrain caution aurals sound and TERRAIN caution message shows
on navigation displays.
Note: If the test switch is held until aurals begin, the above
indications and additional GPWS aural warnings are tested.
Light controls
As desired
VHF NAVIGATION radios
Set for departure
Audio control panel
Set
Seat
Adjust
Verify positive horizontal (fore and aft) seat lock.
Rudder pedals
Adjust
Adjust rudder pedals to permit full rudder deflection and brake
application. Ensure the captain holds the nose wheel steering wheel
while moving rudder pedals.
Takeoff data
Review
NP.20.22
Normal Procedures -
Amplified Procedures
Boeing 737 Operations Manual
Review takeoff data to include N1, V1, VR, V2, flap setting, zero fuel
weight, temperature, altimeter setting, gross weight, and stabilizer
trim setting.
NP.20.23
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