As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
L DUCT PRESS DROPS TO 10 PSI WHEN L ENG ANT-ICE SELECTED.(<P>PERFORMED AIR SUPPLY BITE IAW 36-23-00, NO DEFECTS NOTED. PERFORMED VISUAL INSPECTION OF TAI AND ANTI-ICE DUCTING IAW 30-11-02, NO DEFECTS NOTED. PERFORMED ENGINE RUN & CYCLED ANTI-ICE SEVERAL TIMES, NO DEFECTS NOTED. OPERATIONAL CHECK GOOD.</P>)