What was found
ELEVATOR SPLIT CAUTION MESSAGE AND CAS MISCOMP STATUS MESSAGE ILLUMINATED DURING CLIMB OUT AT ABOUT 4000 FT. (FLIGHT 4290 - FILED CLOSED)TROUBLESHOT ELEVATOR SPLIT CAUTION AND CAS MISCOMP STATUS IN REFERENCE TO FIM 27-31-00 AND 31-41-00. NO VISIBLE ELEVATOR SPLIT OBSERVED. FOUND DIFFERENCE FOR ELEVATOR POSITION BETWEEN DCU 1 AND DCU 2. SWAPPED DCU 1 AND DCU 2 IN REFERENCE TO AMM 31-41-04, FAULT DID NOT FOLLOW. REINSTALLED DCU'S INTO THEIR ORIGINAL POSITIONS. REMOVED AND REPLACED RH ELEVATOR POSITION TRANSMITTER IN REFERENCE TO AMM 27-34-10, OPS CHECK GOOD AND FAULT CLEARED. PLEASE REFERENCE AML 1645474 PLEASE REFERENCE AML 1645475