What was found
ALL NAV LIGHTS INOPERATIVE ON PREFLIGHT , TROUBLESHOOT SYS FOUND SWITCH CM3589-5 FAILED, THIS IS THE 5TH SWITCH OF THIS PN CHANGED ON THIS MODLE OF ACFT. HOURS VARY FROM 500 TO 3714.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ALL NAV LIGHTS INOPERATIVE ON PREFLIGHT , TROUBLESHOOT SYS FOUND SWITCH CM3589-5 FAILED, THIS IS THE 5TH SWITCH OF THIS PN CHANGED ON THIS MODLE OF ACFT. HOURS VARY FROM 500 TO 3714.