Narrative:

Departing ZZZ; the r-hand gear unsafe light remained illuminated after gear retraction; accompanied by a loud rumbling noise. Leveling at our initial altitude of 8000 ft in the r-hand turn to heading 150 degrees; the aircraft began pitching and stall warnings activated. I intended to turn on nacelle and wing heat once airborne but was distraction by the gear and aircraft control problems. I was reminded to activate anti-ice system by the appearance of ice on the windshield about 2 mins into the flight. I increased power and requested higher altitude to get on top of the overcast. Subsequent maneuvering resulted in approachs to stalls. Approach; center; and ZZZ1 tower assisted us by providing vectors and altitudes to keep us clear of terrain; traffic; and further icing conditions. After experimenting with different airspds and flap settings we succeeded in getting the aircraft safely back on the ground at ZZZ1. A postflt inspection by the flight crew and a representative of ZZZ1 airport operations revealed a large amount of ice build-up on the r-hand gear door and tip-tank tips. Primary and secondary flight controls were ice free.

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Original NASA ASRS Text

Title: AN LJ35 ENCOUNTERED ICING CONDITIONS SHORTLY AFTER TKOF AT BJC; RESULTING IN CTL DIFFICULTIES. THEY DIVERTED TO COS AND LANDED SAFELY.

Narrative: DEPARTING ZZZ; THE R-HAND GEAR UNSAFE LIGHT REMAINED ILLUMINATED AFTER GEAR RETRACTION; ACCOMPANIED BY A LOUD RUMBLING NOISE. LEVELING AT OUR INITIAL ALT OF 8000 FT IN THE R-HAND TURN TO HDG 150 DEGS; THE ACFT BEGAN PITCHING AND STALL WARNINGS ACTIVATED. I INTENDED TO TURN ON NACELLE AND WING HEAT ONCE AIRBORNE BUT WAS DISTR BY THE GEAR AND ACFT CTL PROBS. I WAS REMINDED TO ACTIVATE ANTI-ICE SYS BY THE APPEARANCE OF ICE ON THE WINDSHIELD ABOUT 2 MINS INTO THE FLT. I INCREASED PWR AND REQUESTED HIGHER ALT TO GET ON TOP OF THE OVCST. SUBSEQUENT MANEUVERING RESULTED IN APCHS TO STALLS. APCH; CENTER; AND ZZZ1 TWR ASSISTED US BY PROVIDING VECTORS AND ALTS TO KEEP US CLR OF TERRAIN; TFC; AND FURTHER ICING CONDITIONS. AFTER EXPERIMENTING WITH DIFFERENT AIRSPDS AND FLAP SETTINGS WE SUCCEEDED IN GETTING THE ACFT SAFELY BACK ON THE GND AT ZZZ1. A POSTFLT INSPECTION BY THE FLT CREW AND A REPRESENTATIVE OF ZZZ1 ARPT OPS REVEALED A LARGE AMOUNT OF ICE BUILD-UP ON THE R-HAND GEAR DOOR AND TIP-TANK TIPS. PRIMARY AND SECONDARY FLT CTLS WERE ICE FREE.

Data retrieved from NASA's ASRS site as of January 2009 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.