BAKER AVIATION LLC

ENROUTE FROM RDU TO EGE, DIVERTED TO DEN DUE TO FLAPS FAILURE ANNUNCIATION WHEN FLAPS SELECTED TO 5 '. SLATS EXTENDED, BUT FLAPS DID NOT FULLY EXTEND TO 5 '. RAN ABNORMAL CHECKLIST, FLAPS FAILED TO RESET. EMERGENCY WAS DECLARED IN ROUTE TO DEN AND AIRCRAFT LANDED SAFELY IN DEN. AIRCRAFT WAS AOG IN DENVER . FLAPS WERE INSPECTED AND OPERATIONAL CHECKS COMPLETED NUMEROUS TIMES IAW CESSNA MODEL 750 AMM 27-50-00. NO DEFECTS NOTED.

A RECENT SDR REPORT FOR A BROKEN BRACKET AND SUBSEQUENT LEAK IN A HYDRAULIC LINE ON AIRCRAFT N733FL (12508 HRS), S/N 750-0027 RESULTING IN AN EMERGENCY LANDING PROMPTED A BAKER AVIATION FLEET-WIDE INSPECTION OF THE BROKEN BRACKET. WHEN N750VP (8603 HRS) ARRIVED FOR INSPECTION, WE FOUND A STANDOFF BRACKET FOR A CLAMP IN THE LEFT-WING ROOT THAT HOLDS A CLUSTER OF HYD LINES FATIGUED AND BROKE. THIS WAS THE SAME BRACKET THAT FAILED ON N733FL CAUSING AN EMERGENCY LANDING DUE TO HYDRAULIC FLUID LOSS. THIS BROKEN BRACKET MADE IT POSSIBLE FOR THE PRESS A HYD LINES TO FLEX OVER AND RUB AGAINST A FLIGHT CONTROL CABLE AND CHAFFING COULD OCCUR IN THE PRESSURE LINE. THERE WAS NO DAMAGE TO ANY HYDRAULIC LINES OR THE FLIGHT CONTROL CABLE DURING THIS INSPECTION OF N750VP. A NEW BRACKET P/N 6727004-3 WAS INSTALLED DURING THIS MAINTENANCE VISIT. NOTE: THIS BRACKET HAS BEEN INSPECTED ON AIRCRAFT S/N'S 750-0091 (19117 HRS), 750-0140 (6029 HRS), 750-0266 (5667HRS) WITH NO DEFECTS FOUND.

N733FL INFLIGHT: PILOT MESSAGE: WE HAD AN AMBER CAS MESSAGE OF HYDRAULIC A LOW VOLUME. WE PULLED UP THE EICAS PAGE FOR HYDRAULICS AND CONFIRMED THE DROPPING QUANTITY OF A-SIDE FLUID AND RAN THE ASSOCIATED CHECKLIST, WHICH CALLED TO UNLOAD THE A SYSTEM PUMP AND PULLING THE HYDRAULIC PTU CB. BY THE TIME WE COMPLETED THAT CHECKLIST, WE NOTED THE REMAINING QUANTITY WAS AT 10%. WE DECLARED AN EMERGENCY AND NOTIFIED ATC OF THE REQUIRED DIVERSION TO RSW AND SET UP FOR THE APPROACH/LANDING. WE HAD NOTED THE A FLUID QUANTITY WAS REPORTING 25% WHILE UNLOADED. I DECIDED TO FIRST ATTEMPT A CONVENTIONAL LANDING GEAR EXTENSION WITH THE REMAINING HYDRAULIC FLUID BEFORE ATTEMPTING AN EMERGENCY GEAR EXTENSION USING THE NITROGEN BLOW DOWN BOTTLE. WE RELOADED THE A SYSTEM AND SUCCESSFULLY PERFORMED A CONVENTIONAL LANDING GEAR EXTENSION, UNLOADING THE A SYSTEM AGAIN AFTERWARD. WE MADE AN APPROACH AND SUCCESSFUL LANDING, USING THE EMERGENCY BRAKES TO FULLY STOP THE AIRCRAFT ON THE RUNWAY. MX FINDINGS: DURING TROUBLESHOOTING, MAINTENANCE FOUND A STANDOFF BRACKET FOR A CLAMP IN THE LEFT-WING ROOT THAT HOLDS A CLUSTER OF HYD LINES FATIGUED AND BROKE. THIS ALLOWED THE PRESS A HYD LINES TO FLEX OVER AND RUB AGAINST A FLIGHT CONTROL CABLE THAT CHAFFED A SMALL HOLE IN THE PRESSURE LINE. THERE WAS NO DAMAGE TO THE FLIGHT CONTROL CABLE. BAKER AVIAITON MX CREATED A QUALITY NOTIFICATION AND MX ACTION PLAN. THE PLAN INCLUDED A ONE PAGE NOTIFIACTION, MEETING WITH ALL TECHS, SHORT TERM AND LONG TERM ACTION PLAN. SHORT TERM ACTION: BAKER MX IS INSPECTING ALL CITATION X'S IN OUR FLEET TO ENSURE THIS ISSUE DOESN'T EXIST UNDETECTED ON ANY OTHER ACFT.

LEFT I/B MAIN FLAP O/B LEADING EDGE FAIRING DELAMINATED. HOT BOND REPAIRED PER SRM 57-53-01 REPAIR 1 AND SRM 51-70-10 FIG 5.