737 Operations Manual
Checklist Introduction -
Non-Normal Checklists
Copyright © The Boeing Company. See title page for details.
D6-27370-400E-TBCE CI.2.3
• Flight crew reset of tripped fuel pump and fuel pump control circuit
breakers in flight is prohibited. Reset of any other tripped circuit breaker
is not recommended, unless in the judgement of the captain, the situation
resulting from the circuit breaker trip has a significant adverse effect on
safety. These other tripped circuit breakers may be reset once, after a short
cooling period (approximately 2 minutes.) A ground reset of a tripped
circuit breaker by the flight crew should only be accomplished after
maintenance has determined that it is safe to reset the circuit breaker.
• Flight crew cycling (pulling and resetting) of circuit breakers to clear
non-normal conditions is not recommended.
Non-Normal Checklist Use
Non-normal checklist use commences when the airplane flight path and
configuration are properly established. Only a few situations require an immediate
response (such as stall warning, ground proximity PULL UP and WINDSHEAR
warnings, and rejected takeoff.) Usually, time is available to assess the situation
before corrective action is initiated. All actions should then be coordinated under
the captain's supervision and performed in a deliberate, systematic manner. Flight
path control should never be compromised.
When a non-normal situation is evident, at the direction of the pilot flying, both
crewmembers systematically and without delay accomplish all recall items in
their areas of responsibility.
The pilot flying calls for the checklist when:
• the flight path is under control
• the airplane is not in a critical stage of flight (such as takeoff or landing)
• all recall items are complete.
For those checklists containing only recall items or a combination of recall and
reference items, the pilot not flying first verifies that each recall item has been
accomplished. The checklist is normally read aloud during such verification, but
the pilot flying is not required to respond except for items that are not in agreement
with the checklist
Checklist reference items, including the response or action, are read aloud by the
pilot not flying with appropriate action being taken by the crewmember in whose
area of responsibility each control is located. After positioning the control, the
crewmember taking the action also states the checklist response. In the
non-normal landing checklist, the pilot flying also verifies and responds to
checklist items.
The pilot flying may also direct reference procedures to be accomplished by recall
if no hazard is created by such action, or if the situation does not permit reference
to a checklist.
June 07, 2002
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