B-13 Page 2 of 2
MN-FLT-OH-201
Flight Crew Operations Manual Bulletin No. GOT-13 , Dated November 6, 2018 (continued)
Additionally, pilots are reminded that an erroneous AOA can cause some or all of
the following indications and effects:
• Continuous or intermittent stick shaker on the affected side only.
• Minimum speed bar (red and black) on the affected side only.
• Increasing nose down control forces.
• Inability to engage autopilot.
• Automatic disengagement of autopilot.
• IAS DISAGREE alert.
• ALT DISAGREE alert.
• AOA DISAGREE alert (if the AOA indicator option is installed)
• FEEL DIFF PRESS light.
Operating Instructions
In the event an uncommanded nose down stabilizer trim is experienced on the
737-8 /-9, in conjunction with one or more of the above indications or effects, do
the Runaway Stabilizer NNC ensuring that the STAB TRIM CUTOUT switches
are set to CUTOUT and stay in the CUTOUT position for the remainder of the
flight.
Note:
Initially, higher control forces may be needed to overcome any
stabilizer nose down trim already applied. Electric stabilizer trim can
be used to neutralize control column pitch forces before moving the
STAB TRIM CUTOUT switches to CUTOUT. Manual stabilizer trim
can be used after the STAB TRIM CUTOUT switches are moved to
CUTOUT.
March 1, 2021
