What was found
LEFT BLEED AIR LEAK DETECT ANNUNICATOR CAME ON, RESET VALVES PER QRH, NO CHANGE. AIRCRAFT RETURNED TO DTW. MAINTENANCE REPLACED CRACKED BLEED PIPE AT POSITION 18 ON LEFT SIDE. ALL CHECKS GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
LEFT BLEED AIR LEAK DETECT ANNUNICATOR CAME ON, RESET VALVES PER QRH, NO CHANGE. AIRCRAFT RETURNED TO DTW. MAINTENANCE REPLACED CRACKED BLEED PIPE AT POSITION 18 ON LEFT SIDE. ALL CHECKS GOOD.