Extra EA 500 - Electric Trim Check; Section 4 - Normal Operating Procedures

Section 906 Pilot’s Operating Handbook
S-TEC System 55X Autopilot EXTRA 500
b The following altitude losses and bank angles were recorded
after a malfunction with a 1 second recovery delay:
Configuration Bank Angle/Altitude Loss
Maneuvering 10°/-40'
Approach
(Coupled or Uncoupled)
15°/-60'
The above values are the worst case for the EXTRA 500.
906.4 Section 4 - Normal Operating Procedures
For detailed pre-flight and inflight procedures refer to S-TEC
System 55X Pilot’s Operating Handbook (see above).
Important When S-TEC Flight Director is operating, the Flight
Director Autopilot should be disconnected using the control
wheel disconnect switch only. Any other means of
disconnect (breaker, ON-OFF switch, etc.) may leave
steering bars in view, but inoperable.
906.4.a Electric Trim Check
The S-TEC Electric Trim System is designed to accept any
single failure, either mechanical or electrical, without
uncontrolled operation resulting during operations in the
Manual Electric Trim Mode. During autotrim mode the system
is designed to limit the effect of any failure causing trim
operation. In order to assure proper operation of these
safeguards, it is necessary to conduct a simple pre-flight test of
the system prior to each flight.
Following is the trim pre-flight test procedure:
1 Manual Electric Elevator Trim
a
AUTOPILOT PITCH TRIM and MASTER switch - ON
b Operate
TRIM switch (both knob sections) - Nose DN - Check
trim moves nose down and trim in motion indicator TRIM in
A/P Programmer flashes. Operate
TRIM switch - Nose UP -
Check trim moves nose up and for in motion indicator TRIM.
906-6 26. January 2011