As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT 16000 MSL RECEIVED LT BLEED DUCT WARNING, COMPLIED WITH QRH AIR RETURNED LANDED OVER WEIGHT 2000 LBS. (ACFT RETURNED TO PIT AFTER T/O -- EMERGENCY DECLARED AS A PRECAUTION) R & R BOTH MT137 AND MT138 BLEED LOOPS ON THE HP GROUND DUCT, OPS CHECK GOOD IAW AMM 36-21-01, ACFT OK FOR SERVICE.