What was found
LEADING EDGE MIDDLE LEFT WING DEICE BOOT FAILS BOTH TIMERS. RETURNED TO SFO. SWAPPED LEFT AND RIGHT MIDDLE DEICE BOOT PRESSURE SWITCHES FOR TROUBLESHOOTING. COULD NOT DUPLICATE PROBLEM. LEADING EDGE DEICE SYSTEM, CHECKS GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
LEADING EDGE MIDDLE LEFT WING DEICE BOOT FAILS BOTH TIMERS. RETURNED TO SFO. SWAPPED LEFT AND RIGHT MIDDLE DEICE BOOT PRESSURE SWITCHES FOR TROUBLESHOOTING. COULD NOT DUPLICATE PROBLEM. LEADING EDGE DEICE SYSTEM, CHECKS GOOD.