What was found
FLT 172 - BDL-PHL - AFTER T/O AND FLAP RETRACTION, NR 2 SLAT INDICATED INTRANSIT. FLAPS RETURNED TO 2 DEGREES, NO GREEN SAFE LIGHT. FLAPS RETURNED TO UP POSITION, NR 2 SLAT INDICATED INTRANSIT AND NR 6 INDICATED DOWN. FLAPS RETURNED TO UP WITH SAME SLATS INDICATED. OPERATED FLAPS UP AND DOWN SEVERAL TIMES. CHECKS SATISFACTORILY. SUSPECT WEATHER CONDITION, FREEZING RAIN. A/C OK FOR SERVICE. NO FURTHER SUBSEQUENT INDICATIONS.