EXECUTIVE AIR CHARTER OF BOCA RATON

Operated by Executive Air Charter of Boca Raton (per NTSB report)

FINDING NOTED ON OTHER FLEET AIRCRAFT TRIGGERED SPECIAL EMPHASIS VISUAL INSPECTION. NOTED LONGITUDINAL CRACKS THROUGH RIVET POINT DUE TO EXPANSION FROM METAL CORROSION ON LEFT HAND AS WELL AS RIGHT HAND MAIN LANDING GEAR ROD ASSEMBLY, MAIN LANDING GEAR FAIRING. REMOVED THE AFFECTED PARTS AND REPLACED WITH NEW ASSEMBLY. ASSEMBLY SUB-COMPONENTS WERE NOTED DEFECTIVE FROM CORROSION RESULTING IN CRACKING OF ROD. THIS IS THE SECOND SUCH FINDING IN FLEET.

ROUTINE POST-FLIGHT VISUAL INSPECTION NOTED LONGITUDINAL CRACKS THROUGH RIVET POINT DUE TO EXPANSION FROM METAL CORROSION ON LEFT AND RIGHT MAIN LANDING GEAR ROD ASSEMBLES, MAIN LANDING GEAR FAIRING, REMOVED THE AFFECTED PARTS AND REPLACED WITH NEW.

CABIN PRESSURE FAULT, AUTO PRESSURE FAULT, CAS DURING FLIGHT. MAINTENENCE FOUND AUTOMATIC ACTUATOR MOTOR ON PRIMARY OUTFLOW VALVE INOPERATIVE. UNIT REMOVED, INSPECTED AND TESTED ON UNIT INSTALLED. CHECKED GOOD. ACFT RETURNED TO SERVICE.

ON FINAL APPROACH, DURING PART 91 FLIGHT FOR AC OWNER, CREW NOTED THA THE LT MLG WOULD NOT INDICATE REQUIRED "GREEN" DOWN-LOCK INDICATION. ALL OTHER GEAR INDICATED PROPERLY AFTER NORMAL EXTENSION. CREW PROCEEDED WITH EMERGENCY CHECKLIST ITEMS IAW MFG, INCLUDING EMERGENCY GEAR EXTENSION PROCEDURE, AND NO CHANGE IN SITUATION OCCURRED. LT MLG STILL DID NOT INDICATE DOWNLOCKED. CREW CONDUCTED SEVERAL FLY-BY MANEUVERS TO HAVE ATC CONTROL TOWER VERIFY GEAR POSITION. ATC REPORTED "GEAR APPEARS DOWN AND LOCKED". CREW COMPLETED ALL EMERGENCY CHECKLIST ITEMS AND BRIEFED OCCUPANTS ON UPCOMING "GEAR UNSAFE" LANDING. CREW DECLARED EMERGENCY AND PROCEEDED WITH APPROACH AND LANDING AT AIRPORT WITHOUT INCIDENT. GEAR HELD AND LANDING WAS UNEVENTFUL. THE FOLLOWING DAY (8/10/2008) CREW POWERED UP AC AND NOW DID NOTE PROPER GREEN DOWN LOCK INDICATION ON LT MAIN GEAR. FERRY PERMIT WAS OBTAINED AND AC WAS FERRIED. UPON INSPECTION AT MAINT FACILITY, REPORT NOTED THAT " DOWNLOCK INDICATOR SWITCH" LOCATED ON LT MAIN GEAR ACTUATOR WAS FAULTY. COMPONENT WAS REPLACED WITH NEW COMPONENT AND SYSTEM WAS SERVICED. AC WAS RETURNED TO SERVICE ON OR ABOUT 08/13/2008. ALL OPS CHECKS WERE NORMAL. PART IS ON CONDITION WITHOUT TBO/LIFE LIMIT REQUIREMENTS, ON CONDITION ONLY. NON SERIALIZED PART/COMPONENT. (K)