TM 9--2350--292--20--10147 00--4EXCESSIVE INTERFERENCE, MAIN ENGINE AND APU NOT RUNNING,ACCESSORIES ON -- CONTINUED0147 00FIs interference heard?CONTINUED FROM STEP Enoyes1. Disconnect ground wire from left (right) airpurifier and mounting bracket.2. Clean mounting screws, ground wire, purifierand mounting base thoroughly and reinstall.3. Turn MASTER switch, left (right) air purifier andradio ON (TM 9--2350--292--10). Listen forinterference.4. Turn MASTER switch, left (right) air purifier andradio OFF (TM 9--2350--292--10).Fault corrected.GIs interference heard during heater starting cycle?noyes1. Turn MASTER switch, personnel heater andradio ON (TM 9--2350--292--10). Listen forinterference.2. Turn MASTER switch, personnel heater andradio OFF (TM 9--2350--292--10).Go to Step I.Replace left (right) airpurifier (WP 0706 00).Verify fault is corrected.CONTINUED FROM STEP ECONTINUED ON NEXT PAGE
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