What was found
INFLIGHT ONE CYCLE WAS PUSHED TIMER LIGHT ILLUMINATED. RAN QRH PUSH STR MANUAL BUTTON AND THE GREEN LIGHT DID NOT ILLUMINATE, TIMER LIGHT CAME ON. AIR TURNBACK TO DTW. REMOVED AND REPLACED LEADING EDGE BOOT ASSY. ALL CHECKS GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
INFLIGHT ONE CYCLE WAS PUSHED TIMER LIGHT ILLUMINATED. RAN QRH PUSH STR MANUAL BUTTON AND THE GREEN LIGHT DID NOT ILLUMINATE, TIMER LIGHT CAME ON. AIR TURNBACK TO DTW. REMOVED AND REPLACED LEADING EDGE BOOT ASSY. ALL CHECKS GOOD.