ENRTE WX ICING. PLT ENCOUNTERS ICING AND DEVIATES FROM HIS RTE WHILE ATTEMPTING TO AVOID MORE ICING. HE FINALLY; WITH CTR'S ASSISTANCE; DIVERTS AND LANDS.

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DURING AN INST FLT ON APR/MON/95 FROM COLUMBIA; SC; WITH A DEST OF NIAGARA FALLS; IN A SINGLE ENG C-182; WHILE FLYING AT 9000 FT ON V35 APCHING IHD VOR; WE ENTERED AN OVCST; WE ENCOUNTERED SEVERE AND RAPID BUILDUP OF RIME ICE. WE NOTIFIED ZOB AND WERE CLRED TO 11000 FT. AT THAT ALT; WE CONTINUED IN THE OVCST AND CONTINUED TO BUILD RIME ICE. WE WERE IN AND OUT OF THE OVCST AND WE DEVIATED FROM OUR HDG TO AVOID ICE AND MORE BUILDUP. ATC QUESTIONED OUR HDG CHANGE. ZOB INFORMED US THAT AN ARPT; LBE; WAS JUST AHEAD AT THE LOWER ALT OF 6000 FT. WE ENCOUNTERED NO MORE ICING AND LANDED WITH NO PROBS AT XA23Z AT LBE. IF A PROB LIKE THIS SHOULD OCCUR; A REQUEST WOULD BE MADE TO CHANGE OUR RTE 180 DEGS TO RETURN TO VFR CONDITIONS; WHICH WE LEFT AT MGM MORGANTOWN VOR. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THIS PLT WAS ATTEMPTING TO BE EXTRA SAFE BY TAKING A FRIEND; WHO WAS A MORE EXPERIENCED INST INSTRUCTOR; ALONG WITH HIM ON THE FLT FROM FLORIDA. HOWEVER; THE FRIEND FILED THE FLT PLAN FROM CAE THROUGH SOME WX THAT DID NOT LOOK GOOD TO THE RPTR. THE FRIEND SAID THAT THEY SHOULD FLY TO THE WX AREA AND TAKE A LOOK AT IT. WHEN THE ACFT ICED UP; THE FRIEND JOINED THE PLT IN HIS CONCERN. ZOB CTLRS SAVED THE DAY FOR THESE PLTS. THEY RPTED THE WX AT LBE AND VECTORED THEM TO THE ARPT AND AFTER LNDG THEY CALLED AND INQUIRED AS TO THEIR SAFETY. THE RPTR HAD NOTHING BUT KIND REGARD FOR THOSE CTLRS. AS FOR HIS COMPANION; HE WILL NOT FLY WITH HIM AGAIN. THE ACFT; A CESSNA 182; WAS PICKED UP A MONTH LATER IN GOOD WX AND HE FLEW IT HOME SAFELY.