PIPER AIRCRAFT CORPORATION
SECTION 9
PA-28-236, DAKOTA
SUPPLEMENT 9
ISSUED: JULY 23, 1982
REPORT: VB-910
9-51
(b) In case of Electric Trim Malfunction (either manual electric or
autotrim):
(1) AP DISC/TRIM INTER Switch - PRESS and HOLD throughout
recovery.
(2) PITCH TRIM Circuit Breaker - PULL.
(3) Aircraft - RETRIM manually.
CAUTION
When disconnecting the autopilot after a trim
malfunction, hold the control wheel firmly; up to
45 pounds of force on the control wheel may be
necessary to hold the aircraft level.
Maximum Altitude losses due to autopilot malfunction:
Configuration
Alt. Loss
Cruise, Climb, Descent
200’
Maneuvering 100’
APPR 60’
SECTION 4 - NORMAL PROCEDURES
(a) PREFLIGHT (PERFORM PRIOR TO EACH FLIGHT)
(1) GYROS - Allow 3-4 minutes for gyros to come up to speed.
(2) RADIO POWER Switch - ON.
(3) PREFLIGHT TEST BUTTON - PRESS momentarily and NOTE:
a. All annunciator lights on (TRIM annunciator flashing).
b. After approximately 5 seconds, all annunciator lights off
except AP which will flash approximately 12 times and then
remain off.
NOTE
If trim warning light stays on then the auto trim
did not pass preflight test. The autopilot circuit
breakers should be pulled. Manual electric trim
cannot be used.
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