THE L DOWN AILERON CABLE BROKE ON AN ACR MLG CAUSING CTL PROBS.

Narrative

AFTER TAKING OFF FROM EWR ARPT; I FOUND THE ACFT HARD TO CTL. FOUND THE L AILERON LOCKED IN THE UP POS. ACFT BECAME MORE DIFFICULT TO CTL THE SLOWER WE GOT. BY THE TIME WE GOT ON SHORT FINAL; I HAD FULL R AILERON WITH L RUDDER AND EXCESS PWR TO KEEP ON A STRAIGHT COURSE. AFTER LNDG; WE FOUND THE AILERON CABLE BROKEN. AT THIS TIME THE NTSB IS CHKING ON THIS PROB. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE FIRST THING THAT THE NTSB INVESTIGATOR; AND THIS ANALYST; ASKED THE RPTR WAS 'DID THE CTLS CHK OUT ON PREFLT?' YES; THEY DID. THE REASON THAT THE RPTR SENT IN HIS RPT TO ASRS IS THAT HE THOUGHT THAT HE HAD FAILED TO SIGN THE LOGBOOK AFTER THE INCIDENT AND HE WANTED TO COVER HIS ANATOMY (HE DID SIGN THE LOGBOOK). THE L DOWN AILERON CABLE BROKE IN THE WHEEL WELL (THE OTHER ONE WAS ABOUT TO BREAK) CAUSING THE L AILERON TO GO FULL UP. THE CTL WAS EASIER AT HIGHER SPD THAN AT LNDG PATTERN SPDS. THERE WAS NO APPARENT BLOW- DOWN WITH INCREASING SPD. THE CABLE DID NOT BREAK AT THE END WHERE THERE MIGHT HAVE BEEN A MANUFACTURING DEFECT; BUT 'IN THE MIDDLE' BEHIND A PULLEY IN THE WHEEL WELL. THIS INCIDENT HAPPENED AFTER A VERY BIG STORM AT EWR AND THE NTSB FOUND ICE IN THE WHEEL WELL. THE RPTR STATES THAT HE HAD TO USE FULL R AILERON AND DIFFERENTIAL PWR TO KEEP THE WINGS LEVEL AT LNDG SPDS. THE RPTR IS SURPRISED THAT THE FAA HAS HAD NO CONTACT WITH HIM (IT HAS BEEN A MONTH); AND THAT NO EMER AIRWORTHINESS DIRECTIVE HAS BEEN ISSUED TO CHK OTHER MLG'S IN SVC.