What was found
INLET BARRIER FILTER LIGHT ILLUMINATED IN FLIGHT BY PILOT 18926. PROBLEM DETERMINED TO BE DUE TO A PARTIALLY CLOGGED FILTER. PILOT RETURNED TO BASE AFTER SEEING THE AFS FILTER LIGHT DURING HIGH POWER SETTINGS. LIGHT EXTINGUISHED AFTER POWER WAS REDUCED. INSPECTED FILTER, COMPRESSOR INLET, FILTER MAINTENANCE AID, AND DELTA P SWITCH IAW AFS STC SR9368RC. FUNCTION CHECKED OK AFTER SERVICEABLE AFS INLET BARRIER FILTER WAS INSTALLED. UNABLE TO FILL IN SECTIONS 5 AND 6 WITHOUT GETTING ERRORS. SECTION 5 (A) AFS INLET BARRIER FILTER, (B) AEROSPACE FILTRATION SYSTEMS (AFS), (C) 106201-103, (D) 2562, (E) SERVICEABLE, (F) FILTER DIRTY, (G) 278, (H) 702, (I) 278, REPAIR SECTION 6 (A) ENGINE INLET COWLING, (B) BELL, (C) 206-064-819-161, (D) 53483, (E) 407, (F) ARM 142.27, (G) 10277, (H) 26174, (I) 10277