FLIGHT OPERATIONS SAFETY BULLETIN

EMB 145 PITCH TRIM OPERATION

A recent failure of the primary pitch trim on one of our EMB145 on departure is still under investigation. The following is an excerpt from the EMB145 Manufacturers Airplane Operations Manual:


AFTER TAKEOFF
" NOTE: Keep the airplane trimmed to avoid excessive loads on the Horizontal Stabilizer Actuator (HAS). The airplane should be trimmed before 160 KIAS. Failure to accomplish the above procedure may lead to an inoperative trim condition not associated with any EICAS message."


The 160 knot restriction is an Approved Flight Manual limitation. It can also be found in SOP Operations Bulletin 6A. Remember, no matter what else is happening in the cockpit after takeoff, you must retrim the airplane prior to 160 Knots.