As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ORD - FLT 4424 - RIGHT PACK STARTED CYCLING ON AND OFF AFTER TAKEOFF REGARDLESS OF POWER SETTING, RETURNED TO FIELD AND CONDITION CONTINUED WITH APU AIR SUPPLY ON THE WAY BACK TO GATE. COMPLIED WITH AIR CONDITION SYSTEM DISTRIBUTION CHECK, IAW CRJ700 AMM 21-50-00-5, OPS CHECK GOOD. RETURNED AIRCRAFT TO SERVICE. (M)