Textron 525

Service difficulty reports · 260

Newest first. General aviation reporting is voluntary.

Query with SQL
duckdb -csv -c "SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy
  FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet'
  WHERE aircraft_model_key = '525'
  ORDER BY difficulty_date DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

SDR 2005FA0000187Squat Switch · defectiveSQUAT SWITCH FOUND WITH ROLLER MISSING. DURING TROUBLESHOOTING FOR THRUST REVERSER (T) DEPLOYMENT SHORTLY AFTER TAKEOFF. AIRCRAFT RETURNED TO FIELD AND MADE AN UNEVENTFUL LANDING. REPLACED SQUAT SWITCH WITH NEW OF SAME PN. NO OTHER DEFECTS NOTED ON SWITCH.Feb 15, 2005 · N901CJ · Cessna 525 · Landing Gear Position and WarningSDR DJFA2005061Light · inoperativeKMOB - KADS CREW REPORTED PRIOR TO LANDING WHEN GEAR SELECTED DOWN LT MAIN GEAR DOWN GREEN LIGHT FAILED TO ILLUMINATE. ANNUNCIATOR TEST HAD ALSO FAILED TO ILLUMINATE LIGHT. AN ATTEMPT WAS MADE TO SWAP INDICATOR BULBS, WHICH RESULTED IN NO GREEN GEAR DOWN LIGFeb 13, 2005 · N216CW · Cessna 525 · Landing Gear Position and WarningSDR DJFA2004043Carbon Seal · failedCREW REPORTED THAT 10 MINUTES AFTER TAKE OFF, DURING CLIMB TO ALTITUDE, THE RT ENGINE OIL PRESSURE LIGHT ILLUMINATED. THE OIL PRESSURE WAS READING APPROXIMATELY 50 PSI AND DECREASING. ENGINE WAS SHUT DOWN AND AIRCRAFT RETURNED TO KBGM. MAINTENANCE INSTALLEDDec 24, 2004 · N288CW · Cessna 525 · Turbine Engine Oil SystemSDR Z5F2004F00004Actuator · frozenWHILE IN CRUISE AT FL370, CREW DISCOVERED THAT THE ELEVATOR TRIM, BOTH ELECTRIC AND MANUAL WAS FROZEN. AUTOPILOT DISCONNECTED AND AVIONICS CAUTION ILLUMINATED. CREW DECLARED AN EMERGENCY AND WAS CLEARED TO DESCEND AND LAND. AC LANDING WAS UNEVENTFUL. MAINTSep 11, 2004 · N135CS · Cessna 525 · Elevator Tab Control SystemSDR CA040624009Coupling · failed(CAN)A/C HAD BEEN MODIFIED AT FACTORY TO REMOVE FLEX COUPLING AND TUBE ARRANGEMENT OF S/N 0001 THRU 0129 BLEED AIR SYSTEMS (REF. IPC36-10-00-01 SHEET 1 OF 4 DETAIL B) AND INSTALL FLEX COUPLING AND TUBE ARRANGEMENT OF S/N'S 0130 THRU 0184. THIS UPGRADED ARRANGMay 13, 2004 · Cessna 525 · Engine Bleed Air SystemSDR 2004FA0000421Precooler · splitPILOTS NOTICED SLIGHT TEMP RISE IN RT ENGINE, AND AN UNUSUAL VIBRATION ALL ENGINE INDICATIONS IN NORMAL RANGES POSTFLIGHT WALK AROUND NOTICED A SPLIT IN THE PRESSURIZATION (BLEED AIR) PRE-COOLER IN THE RT PYLON. PAINT DISCOLORATION WAS NOTED NO DAMAGE TO ADJAApr 21, 2004 · N195ME · Cessna 525 · Pneumatic Distribution SystemSDR 2003FA0001263Squat Switch · missingPILOT REPORTED THE SQUAT SWITCH WAS INOPERATIVE. AFTER INVESTIGATION MAINTENANCE FOUND THAT SCREW AND NUT THAT FASTEN THE ROLLER TO THE SWITCH PLUNGER HAD FALLEN OFF AND THE ROLLER DEPARTED THE AIRPLANE RENDERING THE SQUAT SWITCH INOPERATIVE. SUGGEST A MOREDec 9, 2003 · N431YD · Cessna 525 · Landing Gear Position and WarningSDR EWG2003F00001Wire · chafedPILOT REPORTS (SPEED BRAKE) CIRCUIT BREAKER POPS EVERY TIME SPEED BRAKES EXTEND MANUALLY OR IN AUTO MODE PROBLEM WAS ISOLATED TO A CHAFED WIRE BETWEEN PIN 5 AND PIN X AT CONNECTORS JR004 AND PS003. THE WIRE WAS ARCING AGAINST THE RT ENGINE MOTIVE FLOW LINE PNov 3, 2003 · N92ND · Cessna 525 · Flight Control System WiringSDR 2003F00515Tire · leakingSUSPECTED SUDDEN AIR LOSS BETWEEN PRE-FLIGHT INSPECTION AT HOME FBO AND LANDING AT VISITING FBO. APPROX. 1-25 HOURS.Aug 4, 2003 · N51GS · Cessna 525 · TireSDR UIE2003F00000Engine · flamed outDURING AN APPROACH TO LAND AT 5000 FT AGL, THE THROTTLES WERE RETARDED TO IDLE AND THE NR 2 ENGINE FLAMED OUT. A SINGLE ENGINE LANDING WAS PERFORMED WITHOUT INCIDENT. THE AIRCRAFT HAD RECENTLY BEEN THROUGH AN ENGINE CHANGE AFTER AN OVERHAUL. AFTER THE WORK Jul 14, 2003 · N1000E · Cessna 525 · Engine (Turbine/Turboprop)SDR WI52003F00000Diffuser · rupturedUPON ENGINE DISSASSEMBLY THE DIFFUSER WAS FOUND TO EXHIBIT A SEPARATION OF THE AXIAL WELD OF THE PRESSURE CASE. THE FAILURE WAS INITIATED AS A FATIGUE CRACK WHICH RUPTURED AFTER REACHING A 3.00 INCH CRITICAL LENGTH. CAUSE IS ATTRIBUTED TO LOCAL MATERIAL THINJun 27, 2003 · N111AM · Cessna 525 · Engine (Turbine/Turboprop)SDR CA030626004Starter Gen · failed(CAN) LT GENERATOR WENT OFF LINE IN FLIGHT. AFTER LANDING WE TRIED TO START THE LT ENGINE AND NO RESPONSE,THE LT STARTER GENERATOR WAS CHANGE WITH AN OVERHAUL UNIT. THE LT GENERATOR WAS DUE FOR OVERHAUL AT 2049 HOURS.Jun 19, 2003 · Cessna 525 · Starter-GeneratorSDR 2003FA0000466Blade · damagedON TAKEOFF, NOTICE SMALL BIRD PASS OVER NOSE AND LEFT WINDSHIELD, TAKEOFF WAS NORMAL. DURING CLIMBOUT, 14,500 FEET, STARTED TO HEAR A LOUD WHINE AND VIBRATION COMING FROM LEFT ENGINE. DIVERTED AND BROUGHT LEFT ENGINE TO FLIGHT IDLE. DESCENT AND LANDING WAS Apr 3, 2003 · N349SF · Cessna 525 · Turbine Engine Compressor SectionSDR 2003FA0000614Access Panel · leakingFUEL BAY ACCESS PANELS CAUSE A FUEL LEAK WHEN INSTALLED AS SPARES REPLACEMENT. AT ALL FASTENER HOLES ON EACH DOUBLER THERE IS PROTRUSION CAUSED BY THE OLD PANELS DESIGNED WITH A MILLED AREA ON BACK SIDE OF COUNTER SUNK FASTENER HOLES. WHEN ORIGINAL PANEL SCRMar 17, 2003 · N177RE · Cessna 525 · Wing, Plate/SkinSDR 2002FA0001380Battery · corrodedELT BATTERY, BATTERY CASE CORRODED AND CRACKED. ELECTROLYTE LEAK.Nov 25, 2002 · N523BT · Cessna 525 · Emergency Locator BeaconSDR 2002FA0001382Overheat Sensor · defectivePILOT REPORTED MAIN BATTERY OVER HEAT LIGHT CAME ON IN FLIGHT. BATTERY WAS CHECKED AFTER LANDING AND WAS NOT WARM. BATTERY CELLS CHECKED GOOD ND WERE ALL EVEN VOLTAGE. THE BATTERY OVERHEATED SENSOR WAS FOUND TO BE DEFECTIVE. PURCHASED NEW BATTERY AND SENSONov 21, 2002 · N525RA · Cessna 525 · Overheat DetectionSDR AUS20020500Valve · broken(AUS) LT ENGINE BLEED AIR SYSTEM CHECK VALVE BROKEN. INVESTIGATION FOUND CENTRE SUPPORT WELDS FAILED CAUSING AIRFLOW BLOCKAGE.May 24, 2002 · Cessna 525 · Engine Bleed Air SystemSDR JGV2001F00002Disk · brokenWHILE PERFORMING ROUTINE INSPECTION ON AIRCRAFT, IT WAS DISCOVERED THAT THE OUTBOARD ROTATING DISK ON THE LEFT BRAKE WAS BROKEN INTO THREE PIECES. THE PIECES FELL OUT OR THE BRAKE ASSEMBLY WHEN THE WHEEL WAS REMOVED FROM THE AIRCRAFT.Jun 15, 2001 · N810SS · Cessna 525 · Landing Gear Brake SystemSDR 20000720SH030Control Valve · defectiveORDERED AND RECEIVED NEW HYDRAULIC FLAP CONTROL VALVE. INSTALLED VALVE AND RAN AIRCRAFT. FOUND FLAPS WOULD ONLY OPERATE INTERMITTENTLY. CHECKED ALL ELECTRICAL CIRCUITS, ALL CHECKED GOOD. RE-INSTALLED OLD VALVE AND FLAPS OPERATED NORMALLY. RE-ORDERED A NEWJun 23, 2000 · N525KA · Cessna 525 · Trailing Edge Flap Control SystemSDR CA000330005Channel · cracked(CAN) DURING SCHEDULED MAINTENANCE, CRACKS WERE FOUND ON THE THRUST ATTENUATOR PIVOT SUPORT CHANNELS (UPPER AND LOWER, RIGHT SIDE). THESE CHANNELS HAD BEEN INSTALLED AS PART OF SERVICE BULLETIN 525-78-03.Mar 23, 2000 · Cessna 525 · Engine Thrust ReverserSDR CA000330004Skin · cracked(CAN) DURING SCHEDULED MAINTENANCE, A CRACK WAS FOUND ON THE LOWER PYLON SKIN. THE CRACKS WERE FOUND ON TWO RIVET ROWS PARALLEL TO THE C/L OF THE AIRCRAFT. THE CRACKS WERE APPROXIMATELY SIX INCHES LONG.Mar 23, 2000 · Cessna 525 · Nacelle/Pylon, Plate/SkinSDR 20000329SH047Tube · crackedAFTER LANDING GEAR RETRACTION, BOTH HYDRAULIC FLOW AND LOW PRESSURE ANNUNCIATOR LIGHTS ILLUMINATED. FLIGHT WAS ABORTED AND DIVERTED BACK TO PHF (ORIGINATING AIRPORT). LANDING GEAR WAS EXTENDED BY THE EMERGENCY EXTENSION SYSTEM WITH NO FURTHER ABNORMALTIES. Feb 24, 2000 · N49CJ · Cessna 525 · Hydraulic System, MainSDR 99ZZZX4673Tube · failedINVESTIGATED 'OCCURRENCE' AND RECEIVED REPORT FROM MAINTENANCE PERSONNEL THAT A MAIN SYSTEM HYDRAULIC FAILURE OCCURRED IN-FLIGHT. LANDING GEAR EXTENDED VIA EMERGENCY SYSTEM. AIRCRAFT LANDED WITHOUT INCIDENT WITH NO SPEED BRAKES, THRUST REVERSERS (ATTENTUATODec 8, 1999 · N49CJ · Cessna 525 · Hydraulic System, MainSDR 2000ZZZX636Tube · failedIN-FLIGHT, MAIN SYSTEM HYDRAULIC FAILURE. LOW FLOW CAUTION INDICATION BOTH ENGINES. MAIN LANDING GEAR DOWN AND LOCKED WITH EMERGENCY EXTENSION SYSTEM, ZERO DEGREES FLAP, NO SPEED BRAKES, AND THRUST ATTENUATORS LANDING WITH NO INCIDENT. MAIN HYDRAULIC PRESSUDec 8, 1999 · N49CJ · Cessna 525 · Hydraulic System, MainSDR 99ZZZX4109Pump · failedPUMP FAILED TO PRODUCE HYDRAULIC PRESSURE.Oct 5, 1999 · N888RA · Cessna 525 · Hydraulic Pump (Electric/Engine), MainSDR 99ZZZX2968Seal · failedAT FL 37, THE DOOR SEAL LIGHT CAME ON. PRESSURIZATION WAS MAINTAINED AND A NORMAL DESCENT TO 15,000 FEET WAS REQUESTED. AT 15,000 FEET, THE DOOR SEAL LIGHT EXTINGUISHED. FLIGHT WAS CONTINUED PER MEL AT OR BELOW 25,000 FEET. SECONDARY DOOR SEAL REPLACED AS May 17, 1999 · Cessna 525 · Passenger/Crew DoorsSDR XEFR855KBellcrank · crackedPILOT REPORTED LEFT HAND ATTENUATOR LIGHT STAYS ON WHEN DEPLOYED. FOUND LEFT HAND ATTENUATOR BELLCRANK CRACKED AT ACTUATOR END. REMOVED P/N 6354051-59 AND REPLACED WITH P/N 6354051-59. TIGHTENED HARDWARE IAW CHAPTER 20 OF CITATION MM. OPS CHECK GOOD. (X)Dec 2, 1998 · N41EB · Cessna 525 · Engine Thrust ReverserSDR 99ZZZX54Fcu · malfunctionedOPERATOR REPORTED DURING DESCENT FROM FL 410 WHEN POWER LEVERS WERE RETARDED, LEFT ENGINE ROLLED BACK AND FLAMED OUT. A SUBSEQUENT AIR-START WAS NOT ATTEMPTED. OPERATOR DESCENDED AND LANDED AT DESTINATION AIRPORT. TROUBLESHOOTING OF DISCREPANCY PER MM REVEAOct 8, 1998 · N525J · Cessna 525 · Fuel Control/Turbine EnginesSDR 98ZZZX1088Dampener · seizedOPERATOR REPORTED NOSE WHEEL STEERING PULLED TO THE LEFT WHEN INDICATING STRAIGHT (RUDDER PEDALS IN NEUTRAL). FOUND NOSE TIRE SEVERELY SCUFFED ON CENTERLINE OF TREAD. ATTEMPTS TO MANUALLY TURN NOSE WHEEL FOUND SHIMMY DAMPENER FROZEN IN PLACE. REPLACED NOSE Feb 21, 1998 · N741CC · Cessna 525 · Shimmy DamperSDR 98ZZZX866Regulator · burnedDURING RE-INSTALLATION OF OXYGEN BOTTLE AFTER HYDROSTATIC TEST, MECHANIC NOTED SOUND LIKE OXYGEN LEAK. DURING ATTEMPT TO TIGHTEN FITTING, NOTED GREEN GLOW AT REGULATOR, WITH SPARKS. MECHANIC CLEARED AREA AND 2 EXPLOSIONS NOTED. FIRE BURNED HOLES IN AIRCRAFTFeb 4, 1998 · N26CB · Cessna 525 · Oxygen SystemSDR 98ZZZX1037Adapter · wornDURING ROUTINE INSPECTION CHECK 2, START NOZZLE ADAPTER WAS INSPECTED PER WILLIAMS ROLLS ROYCE FJ44-1A MM FOR DEFECTS. FRETTING WEAR OF .025 INCH WAS NOTED IN ZONE B(TIP) OF START NOZZLE, .020 INCH IS MAX SERVICE LIMIT FOR WEAR IN THIS AREA. INITIAL DISCOVERYJan 21, 1998 · N195ME · Cessna 525 · Fuel Controlling SystemSDR 98ZZZX90Switch · failedAOA PROBE WOULD NOT HEAT. TRACED PROBLEM TO DEFECTIVE SWITCH.Nov 11, 1997 · N511AC · Cessna 525 · Stall Warning SystemSDR 97ZZZX4826Bearing · failedPILOT REPORTED RT GENERATOR FAILURE. UPON INITIAL INSPECTION, THE RT STARTER/GENERATOR HAD A STRONG BURNT SMELL. AFTER FURTHER INSPECTION, DISCOVERED THE ARMATURE SUPPORT BEARING HAD FAILED AND PIECES OF THE BEARING CAGE HAD SHORTED THE STARTER/GENERATOR COMOct 28, 1997 · N31SG · Cessna 525 · Starter-GeneratorSDR 97ZZZX4718Filter · faultyPILOT REPORTED A LEFT HYDRAULIC LOW FLOW LIGHT CAME ON INTERMITTENTLY IN-FLIGHT. INSPECTED AND FOUND HYDRAULIC FILTER WAS SLOW IN PASSING FLUID. INSTALLED NEW FILTER AND OPERATIONAL CHECKS WERE GOOD.Oct 27, 1997 · N525J · Cessna 525 · Hydraulic Filter, MainSDR CA970918009Skin · missing(CAN) PILOT REPORTED 3 INCH BY 4 INCH SEGMENT OF LOWER WING SKIN MISSING. REPLACED. AIRCRAFT TT: 794 HOURS.Sep 9, 1997 · Cessna 525 · Wing, Plate/SkinSDR 97ZZZX3925Controller · failedMOMENTARY SPIKE IN CABIN ALTITUDE AT 2,500 FPM CLIMB. AIRCRAFT BEGAN DUMPING PRESSURIZATION AT 2,200 AND FPM AT 7,000 FEET ALTITUDE. DURING CLIMB, PROBLEM OCCURRED WHEN SCHEDULING AND 600 FIELD ELEVATION. AT 17,000 FEET, AIRCRAFT BEGAN TO DEPRESSURIZE AT 2,Jun 23, 1997 · N472SW · Cessna 525 · Cabin Pressure ControllerSDR 97ZZZX30Valve · crackedAIRCRAFT HAD NO BLEED AIR TO RIGHT WING FOR ANTI-ICE PROTECTION. FOUND SEVERAL BROKEN WELDS AT GUSSETS HOLDING STATIONARY PART OF VALVE CAUSING VALVE TO MOVE, AND NOT ALLOWING THE CHECK PORTION OF VALVE TO OPEN ALLOWING BLEED AIR TO THE ANTI-ICE WING VALVE.Dec 13, 1996 · N229CJ · Cessna 525 · Pneumatic Distribution SystemSDR 97ZZZX490Diode · failedDIODE DRO26 FAILED TO A SHORT. WITH LANDING RECOGNITION LIGHT IN 'LANDING' POSITION, CURRENT (20 AMPS) PASSED THROUGH DIODE DRO28 SWITCH S1066, CONNECTOR JI015/PI015 TO GROUND AT PB015. DAMAGE FOUND ON ALL WIRING AND DRO28. REPLACED DAMAGED PARTS AND WIRINDec 1, 1996 · N472SW · Cessna 525 · Landing Gear Position and WarningSDR 97ZZZX6192Tube · brokenPILOT REPORTED RT ENG ITT PROBLEMS. INSP FOUND RT ENG OUTB BLEED AIR TUBE BROKEN IN FLEX TUBE AREA. REPLACED TUBE, OPS CHECK OK.Nov 27, 1996 · N229CJ · Cessna 525 · Engine Bleed Air SystemSDR 96ZZZX5962Pin · defectiveDURING COMPLETION OF CESSNA SB SB 525-32-08, THE REQUIRED KIT WAS ORDERED AND RECEIVED. UPON INSPECTION OF THE KIT PARTS, ALL FOUR MAIN LANDING GEAR PINS WERE FOUND UNSERVICEABLE. 3 PINS (PN 6341112-1) WERE FOUND WITH LABELING IDENTIFYING THEM AS BAD FROM STNov 5, 1996 · Cessna 525 · Main Landing Gear Attach SectionSDR 97ZZZX38Engine · failedDURING A ROUTINE FLIGHT ON SECOND LEG FROM PHU TO BRD ABOUT 3 HOURS INTO THE FLIGHT, THE CREW MEMBERS HEARD A POP FROM THE LEFT ENGINE. AT THE SAME TIME, THE OIL PRESSURE DECREASED TO 15 PSI IN THE LEFT ENGINE. THE PILOT SHUT DOWN ENGINE AND DIVERTED TO CLOSOct 15, 1996 · N525AL · Cessna 525 · Engine (Turbine/Turboprop)SDR 96ZZZX5965Valve · failedAIRCRAFT WAS HAVING A HEATING PROBLEM. (COULD NOT GET HEAT INTO CABIN) WHILE TROUBLESHOOTING. MAINTENANCE FOUND A CLAMP LAYING ON THE REAR COMPARTMENT FLOOR BROKEN. THE CLAMP CAME FROM THE FWD SIDE OF THE RAM-AIR PRECOOLER, HOWEVER, THE HEATING PROBLEM WAS Sep 27, 1996 · N195ME · Cessna 525 · Cabin Cooling SystemSDR 96ZZZX5964Clamp · brokenAIRCRAFT WAS HAVING A HEATING PROBLEM. (COULD NOT GET HEAT INTO CABIN) WHILE TROUBLESHOOTING. MAINTENANCE FOUND A CLAMP LAYING ON THE REAR COMPARTMENT FLOOR BROKEN. THE CLAMP CAME FROM THE FWD SIDE OF THE RAM-AIR PRECOOLER, HOWEVER, THE HEATING PROBLEM WAS Sep 27, 1996 · N195ME · Cessna 525 · Cabin Cooling SystemSDR 96ZZZX5828Engine · making metalROUTINE OIL ANALYSIS REVEALED SMALL SHINY PLATELETS OF M-50 BEARING MATERIAL. ENGINE MANUFACTURER ADVISES ENGINE IS TO BE REMOVED FOR TEAR DOWN EVALUATION.Sep 25, 1996 · N525FS · Cessna 525 · Engine (Turbine/Turboprop)SDR 96ZZZX5968Pin · rustedAFT PIN IN RT MAIN LANDING GEAR WAS RUSTED AND PITTED. THIS IS FROM A NEW WING ASSY WITH ZERO TIME SINCE NEW. SUBMITTER RECOMMENDS RUST INHIBITOR APPLICATION DURING ASSEMBLY.Sep 17, 1996 · N525KA · Cessna 525 · Main Landing Gear Attach SectionSDR 97ZZZX37Engine · failedAFTER SEVERAL ENGINE START ATTEMPTS, INSPECTION REVEALED THE ENGINE COWLING WAS BURNED AND THE TAILPIPE WAS DISTORTED DUE TO HEAT DAMAGE. THE RIGHT ENGINE WAS REPLACED.Aug 7, 1996 · N525AL · Cessna 525 · Engine (Turbine/Turboprop)SDR 96ZZZX4132Switch · crackedLOSS OF HYDRAULIC FLUID, LOW PRESSURE, AND LOW FLOW INDICATED. CAUSE OF FLUID LOSS FROM CRACKED HYDRAULIC LOW FLOW SWITCH. CAUSE OF CRACK UNKNOWN, NO MAINTENANCE PERFORMED IN THIS AREA. LOCATION OF SWITCH (COULD HAVE BEEN USED AS HAND HOLD ENTERING FAIL CONJul 19, 1996 · N195ME · Cessna 525 · Hydraulic Indicating SystemSDR 96ZZZX2224Actuator · fail testPRE-COOLER ACTUATORS FAILED FUNCTIONAL TEST FOLLOWING COMPLETION OF SB 525-36-02. FOUND P/N 6314305-34 FITTING ORIFICE PLUGGED WITH ADHESIVE MATERIAL. ADHESIVE PRESUMED TO HAVE BEEN BLOCKING FITTING ORIFICE SINCE ORIGINAL AIRCRAFT MANUFACTURE. SUBMITTER RECMar 19, 1996 · N216CJ · Cessna 525 · Cabin Cooling SystemSDR 96ZZZX1633Loading Valve · failedAFTER TAKEOFF, LANDING GEAR FAILED TO RETRACT. PRIOR TO TAKEOFF, PILOT REPORTED FLAPS SEEMED SLUGGISH. AFTER RECYCLING GEAR SEVERAL TIMES, SYSTEM APPEARED TO BE WORKING PROPERLY. AFTER NEXT TAKEOFF, GEAR RETRACTED NORMALLY, BUT WHEN GEAR WAS SELECTED DOWN, Mar 11, 1996 · N94MZ · Cessna 525 · Hydraulic System, MainSDR 96ZZZX965Uplock System · malfunctionedBOTH MAIN LANDING GEAR DROPPED FROM THE WHEELWELLS AT FL 350 WITH THE GEAR UNLOCK LIGHT AND HYDRAULIC PRESSURE ON LIGHT ILLUMINATED. CHECKED ALL LANDING GEAR WIRING AND SWITCHES. REPLACED THE LANDING GEAR CONTROL VALVE AND HYDRAULIC PRESSURE RELIEF VALVE. PFeb 20, 1996 · N70KW · Cessna 525 · Landing Gear Retraction/Extension System
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