Copyright . The Boeing Company. See title page for details.
SP.9.2  June 4, 2004

Supplementary Procedures -Flight Controls 737 Operations Manual
FLIGHT DECK ACTION  GROUND RESPONSE 
Alternate flaps position switch – hold DOWN until flap position indicator indicates 1  “FLAPS MOVING DOWN” 
Flap position indicator – flaps 1 Verify aft overhead leading edge devices annunciator panel indicates all green (FULL EXTEND) with no amber lights illuminated. Verify LE FLAPS TRANSIT light remains illuminated  “ALL LEADING EDGE DEVICES FULLY EXTENDED” 
Alternate flaps master switch – OFF Verify Aft overhead leading edge devices annunciator panel indicates all leading edge flaps full extended and all leading edge slats in extend position Verify LE FLAPS EXT light illuminated  “LEADING EDGE FLAPS FULLY EXTENDED, ALL LEADING EDGE SLATS RETRACTED TO EXTEND POSITION” 
Speed brake lever – UP  “ALL SPOILERS UP” 
Speed brake lever – DOWN  “ALL SPOILERS DOWN” 
Stabilizer trim switches – NOSE DOWN  “STABILIZER LEADING EDGE MOVING UP” 
Stabilizer trim switches – NOSE UP  “STABILIZER LEADING EDGE MOVING DOWN” 
With stabilizer still moving: Stabilizer trim cutout switches – CUTOUT Verify trim motor stops 

Copyright . The Boeing Company. See title page for details.
December 6, 2002  SP.9.3
Supplementary Procedures -Flight Controls 737 Operations Manual

FLIGHT DECK ACTION  GROUND RESPONSE 
Stabilizer trim cutout switches – NORMAL Verify Trim motor resumes Control column – Forward Verify Trim motor stops Column actuated stab trim override – OVERRIDE Verify Trim motor resumes 
Stabilizer trim switches – Trim into green band 
Column actuated stab trim override – NORMAL Switch guard – Close 
Request clearance to flaps 30  “FLAPS CLEAR” 
Flap lever – Position 30  “FLAPS MOVING DOWN” 
Flap lever – UP  “FLAPS MOVING UP” 
Parking Brake – As desired Electrical power – As desired 

Copyright . The Boeing Company. See title page for details.
SP.9.4  December 6, 2002

Altimeter Difference
Note: If flight in RVSM airspace is planned, use the RVSM table in
the limitations section.

This procedure is accomplished when there is a noticeable difference between the altimeters. Accomplish this procedure in stabilized level flight or on the ground.
Altimeters ........................................................................................... Set The reference barometric setting for this check is field barometric pressure or standard barometric pressure (29.92 in Hg or 1013 mb) as appropriate. Perform the following for all altimeters:
.
 First rotate the Baro Set knob clockwise to a higher barometric setting than the reference.

.
 Then rotate the Baro Set knob counterclockwise back to the reference barometric setting.

Altimeters .............................................................................. Crosscheck Maximum differences between the altimeter readings:
ALTITUDE  ELEC/ELEC  ELEC/STBY 
Sea level  50 feet  50 feet 
5,000 feet  50 feet  80 feet 
10,000 feet  60 feet  120 feet 
15,000 feet  70 feet  see note 
20,000 feet  80 feet  see note 
25,000 feet  100 feet  see note 
30,000 feet  120 feet  see note 
35,000 feet  140 feet  see note 
40,000 feet  160 feet  see note 

Note: Above 10,000 feet and .4 Mach, position error causes the tolerance to diverge rapidly and direct crosscheck becomes inconclusive. Differences greater than 400 feet should be suspect and verified by ground maintenance checks.
If it is not possible to identify which altimeter is indicating the correct altitude:
Supplementary Procedures -Flight Instruments 737 Operations Manual

ATC ................................................................................................Notify

QFE Operation
This procedure is accomplished when ATC altitude assignments are referenced to QFE altimeter settings.
Note: Do not use LNAV or VNAV below transition altitude/level. Altitudes in the navigation database are not referenced to QFE. Use only raw data for navigation.
Altimeters ............................................................................................ Set Set altimeters to QFE when below transition altitude/level.
　
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