AN SMA ENCOUNTERED SOME RIME AIRFRAME ICING ON A TRAINING FLT. THE ICE WAS RPTED BY PIREP.

Narrative

WX WAS 1400 FT OVCST WITH BETTER THAN 10 MI VISIBILITY. AS IS USUALLY THE CASE IN COLORADO; ICE WAS FORECAST WITH CLOUDS AND PRECIPITATION. A CALL TO THE TWR SUGGESTED NO ICE RPTED BY PIREPS IN VICINITY. A CLRNC WAS OBTAINED FOR LCL ILS APCHS AND THE FLT COMMENCED. THE FIRST APCH WAS UNEVENTFUL AND CONFIRMED BASES AT ABOUT 1400 FT AGL; TOPS IN EXCESS OF 9000 FT MSL. ON THE SECOND APCH; AFTER ENTERING IMC; WE WERE ADVISED THAT AN MLT RPTED LIGHT RIME AT 9000 FT MSL N OF THE ARPT. THE ILS GS INTERCEPT ALT FOR OUR APCH (RWY 17R) IS 9000 FT MSL AND WE WERE CLRED TO 9000 FT MSL. SINCE WE HAD; WITHOUT EVENT; JUST COMPLETED ALL ILS TO RWY 17R AND THE MSA FOR OUR LOCATION IS 9000 FT; WE COMPLETED THE APCH. UPON LNDG; WE HAD ACCUMULATED PLUS OR MINUS 1/4 INCH RIME ON THE LEADING EDGES OF THE WINGS; HORIZ STABILIZER AND VERT FIN. THE WINDSHIELD REMAINED CLR; WITH FULL DEFROST; AND THE ACFT FLEW NORMALLY USING NORMAL PWR SETTINGS AND AIRSPDS. IN RETROSPECT; WITH A 1400 FT CEILING; IT MAY HAVE BEEN PRUDENT TO REQUEST A 180 DEG TURN AND DSCNT TO VFR IMMEDIATELY AFTER RECEIVING THE PIREP FROM THE SMA. THIS WOULD HAVE TAKEN US ABOUT 1400 FT BELOW THE MSA; BUT I AM CONFIDENT IT COULD HAVE BEEN DONE SAFELY WITH THE HELP OF ATC. WE WOULD HAVE BROKEN OUT AT ABOUT 7572 FT MSL AND THE ARPT ELEVATION IS 6172 FT. ONE PROB CAUSE IS RAPIDLY CHANGING CONDITIONS. THE ENTIRE FLT; INCLUDING TAXI TIME; TOOK 0.8 HRS; AND THE FIRST APCH WAS NORMAL. AFTER THE FLT; I DID SEE ANOTHER SMA MAKE THE APCH. IT IS POSSIBLE THAT PLTS ARE AFRAID TO SUBMIT RPTS ON ICE FOR FEAR OF CERTIFICATE ACTION WHEN NOT IN PROPERLY EQUIPPED ACFT. I RPTED MY ENCOUNTER TO GND AFTER LNDG. RPTING ICE WITHOUT FEAR OF CERTIFICATE ACTION WOULD BE A STEP IN THE RIGHT DIRECTION (OF COURSE; NOT IN CASES OF TOTAL NEGLIGENCE).