Learjet 35A

Service difficulty reports · 726

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 = '35A'
  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 JZBR11598Servo · shaft shearedUPON LANDING, PILOT COMPLAINED OF NOSE WHEEL SHIMMY AND LOSS OF NOSE WHEEL STEERING. AIRCRAFT HAD TO BE TOWED. TROUBLESHOOTING SHOWED THE SERVO RUNNING WITHOUT ACTUATION OF STEERING, THE AIRCRAFT WAS JACKED AND THE SERVO REMOVED. FURTHER INVESTIGATING SHOWEDec 9, 1995 · N8LA · Lear 35A · Landing Gear Steering SystemSDR 96ZZZX141Capacitor · misinstalledIN REFERENCE TO J.E.T. NOSE STEERING COMPUTERS CA-400A, FOUND ELECTROLYTIC CAPACITORS INSTALLED BACKWARDS. RECURRING PROBLEM WITH CAPACITORS C13, C18, C22 BEING INSTALLED REVERSE POLARITY. COMMON SQUAWKS ARE INTERMITTENT OPERATION, UNABLE TO GET FULL NOSE STNov 6, 1995 · N32HM · Lear 35A · Landing Gear Steering SystemSDR 95ZZZX6361Seal/Ring · leakingABQ - AIRCRAFT EXPERIENCED SMOKE IN CABIN IMMEDIATELY AFTER TAKEOFF. FLIGHT CREW FOLLOWED EMERGENCY PROCEDURES AND LANDED WITHOUT INCIDENT. BORESCOPE INSPECTION OF RIGHT ENGINE REVEALED 4/5 BEARING SEALS LEAKING OIL INTO COMPRESSOR SECTION. RIGHT ENGINE WASOct 23, 1995 · N135DE · Lear 35A · Turbine Engine Compressor SectionSDR 96ZZZX664Strut · required serviceAIRCRAFT RETURNED TO BASE AFTER GEAR INDICATED UNSAFE FOLLOWING RETRACTION. SAFE INDICATION ACHIEVED UPON GEAR EXTENSION. NOSE STRUT PRESSURE WAS LOW, SO STRUT DID NOT FULLY EXTEND AFTER ROTATION, THUS, WOULD NOT PROPERLY ACTIVATE UP-LIMIT SWITCH. SERVICED Sep 12, 1995 · N128CA · Lear 35A · Nose/Tail Landing Gear Strut/AxleSDR 95ZZZX4471O-Ring · cutDCA - EN ROUTE FROM DCA TO 029, FLIGHT CREW TURNED TEMP CONTROLLER TO WARM. LIGHT SMOKE THEN ENTERED CABIN. FLIGHT CREW THEN TURNED TEMP CONTROLLER TO FULL COLD, INCREASED CABIN ALTITUDE AND TURNED OFF LT BLEED AIR. SMOKE CLEARED AND OPERATIONS WERE CONTINUAug 19, 1995 · N8LA · Lear 35A · Turbine Engine Compressor SectionSDR 95ZZZX5881Generator · stator failedRT ENGINE STARTED A SEVERE VIBRATION AND DC GENERATOR FAIL LIGHT CAME ON. TEMP RISING (OIL). SHUT DOWN ENGINE. TEAR DOWN REPORT FOUND EXPLODED STATOR WINDING. SWELLING OF THE WINDING MADE THE ROTOR BIND AND RUB AND CAUSED THE HOUSING TO BREAK. BOTH BEARINJul 27, 1995 · N86BE · Lear 35A · DC Generator-AlternatorSDR 95ZZZX5853Lamp · inopNOSE GEAR AND LEFT MAIN GEAR DOWN AND LOCK BULBS INOP. REMOVED AND REPLACED BOTH BULBS. OPS CHECKED GOOD.Jul 27, 1995 · N700SJ · Lear 35A · Landing Gear Position and WarningSDR 95ZZZX4440Switch · faultyINTERMITTENTLY, THE PILOTS 4-WAY TRIM SWITCH WOULD FAIL WITH AUTOPILOT ENGAGED AND WOULD CAUSE TRIM FOR AUTOPILOT TO TRIM PITCH UP, DISCONNECTING ANY OTHER PITCH MODES AND TRIM FULL NOSE UP ATTITUDE IF AUTOPILOT WAS NOT DISCONNECTED. THE CAUSE IS APPARENTLY TJul 16, 1995 · N240B · Lear 35A · Autopilot SystemSDR 95ZZZX4293Bearing · failedDURING ROUTINE 150-HOUR ENGINE INSPECTION, FOUND CHIP DETECTOR COVERED WITH FINE SLIVERS OF METAL. INSPECTION OF OIL FILTER REVEALED 4 TO 20 MG OF CARBON STEEL AND COPPER. THIS COMBINATION OF METALS IS THE MAKE-UP OF A 'LOW' QUALITY ENGINE BEARING. ACCESSORJul 12, 1995 · N600AW · Lear 35A · Turbine Engine Accessory DriveSDR 95ZZZX3571Stop Screw · backed outNO BRAKE PRESSURE ON PILOT'S PEDALS. TROUBLESHOT TO A LOOSE STOP SCREW ON RIGHT POWER BRAKE VALVE. THE SCREW HAD BACKED OUT ONE AND ONE-HALF TURNS WHICH CAUSED BRAKE PRESSURE FLUID BYPASS. ADJUSTED STOP SCREW AND RETORQUED NUT. SUBMITTER RECOMMENDS A MEANSJul 6, 1995 · N94GP · Lear 35A · Landing Gear Brake SystemSDR 95ZZZX4285Fairing · screws detachedDURING PRE-FLIGHT INSPECTION, THE PILOT DISCOVERED EXTENSIVE F.O.D. TO THE RIGHT ENGINE FAN AND NOISE SUPPRESSION BAND. INVESTIGATION REVEALED 2 SCREWS ON THE WING LEADING EDGE FAIRING HAD BACKED OUT. THE PREVIOUS CREW DID NOT REPORT ANY SHIFT IN ENGINE PARAJul 1, 1995 · N210WL · Lear 35A · Aerodynamic FairingsSDR 95ZZZX3391Butt-Splice · burnedLEAR JET WIRING MANUAL 21-42-00, PAGE 7, AUXILIARY CABIN HEAT SYSTEM. WIRE NR HC47A10T, A 10-GAUGE WIRE, IS BUTT-SPLICED TO A 16-GAUGE WIRE AT THE AUXILIARY HEAT RELAY PANEL. THE BUTT-SPLICE AND THE 16-GAUGE WIRE OVERHEATED CAUSING THE PLASTIC TO MELT ON THEJun 26, 1995 · N135DE · Lear 35A · Heating SystemSDR 95ZZZX5313Seal · failedISP - AFTER TAKEOFF, CABIN AND COCKPIT FILLED WITH SMOKE (ENGINE OIL FUMES). EMERGENCY ACTIONS WERE TAKEN AND AIRCRAFT RETURNED TO ISP WITHOUT INCIDENT. BORESCOPE INSPECTION OF ENGINE COMPRESSOR SECTION REVEALED OIL PRESENT IN THE NR 4 AND NR 5 BEARING CARBOJun 7, 1995 · N53GH · Lear 35A · Turbine SectionSDR 95ZZZX3963Engine · malfunctionedISP - AFTER TAKEOFF, CABIN AND COCKPIT FILLED WITH SMOKE (ENGINE OIL FUMES). EMERGENCY ACTIONS WERE TAKEN AND AIRCRAFT RETURNED TO ISP WITHOUT INCIDENT. BORESCOPE INSPECTION OF ENGINE COMPRESSOR SECTION REVEALED OIL PRESENT IN THE NR 4 AND NR 5 BEARING CARBOJun 7, 1995 · N53GH · Lear 35A · Engine (Turbine/Turboprop)SDR 95ZZZX3165Rib Fairing · crackedON STABILIZER ACTUATOR REMOVAL FOR 600-HOUR INSPECTION, FORWARD RIB FAIRING FOUND CRACKED IN SEVERAL PLACES AND MISSING NUTPLATES. SUGGEST USING MORE CARE IN REMOVAL OF ACTUATOR TO AVOID DAMAGING RIB.Jun 7, 1995 · N240JS · Lear 35A · Horizontal Stabilizer, Spar/RibSDR 95ZZZX3433Tire · failedTIRE SEPARATED ON ROTATION AND INGESTED TO NR 1 ENGINE, FODDING ENGINE.Jun 1, 1995 · N317TT · Lear 35A · TireSDR 95ZZZX3158Tire · blownON TAKEOFF ROLL AT 10-15 KNOTS BELOW V 1 (136 KNOTS), THE RIGHT MAIN LANDING GEAR TIRE BLEW OUT. FULL BRAKING AND THRUST REVERSER DEPLOYMENT COULD NOT PREVENT THE AIRCRAFT FROM OVERUNNING THE DEPARTURE END OF THE RUNWAY AND A DRAINAGE DITCH. CAUSE OF TIRE FAMay 23, 1995 · N450MC · Lear 35A · TireSDR 95ZZZX2105Relay · malfunctionLEFT ENGINE START RELAY GENERAL CONTROL PANEL FAILED TO THE ENGAGE POSITION IN-FLIGHT CAUSING LEFT ENGINE STARTER TO ENGAGE. INVESTIGATION REVEALED K-9 RELAY CONTACTS WELDED TOGETHER AND THE K-7 RELAY TO HAVE HIGHLY PITTED CONTACTS. BOTH THE K-7 AND K-9 RELAApr 14, 1995 · N72DA · Lear 35A · Engine CrankingSDR 95ZZZX2253Isolator · tornISOLATOR MOUNT RUBBER IS TORN/CUT. THIS CONDITION OCCURS ONLY ON LEARS WITH THE DEE HOWARD TR 4000 SERIES THRUST REVERSERS. THE NORMAL TIME CHANGE INTERVAL IS 8400 HOURS. DEE HOWARD CO. HAS ISSUED SERVICE BULLETINS TO CORRECT THIS PROBLEM THINKING IT IS HEAApr 10, 1995 · N7XJ · Lear 35A · Engine Mount SectionSDR 95ZZZX1988Gasket · leakingPILOT HAD LOW OIL PRESSURE IN-FLIGHT ON NR 2 ENGINE, SO SHUT ENGINE DOWN. ENGINE HAD 1 QUART OF OIL LEFT IN TANK. FOUND GASKET LEAKING AT OIL PRESSURE LINE TO REAR BEARING. INSTALLED NEW GASKET, PN 3071419-1, ADDED 4 QUARTS OIL TO ENGINE. RUN-UP AND LEAK CApr 7, 1995 · N66LJ · Lear 35A · Turbine Engine Oil SystemSDR 95ZZZX1261Actuator · defectivePILOT REPORTED RIGHT LANDING GEAR DID NOT INDICATE DOWN AND LOCKED. ON THE THIRD ATTEMPT, WHILE THE AIRCRAFT WAS IN A LEFT BANK, THE LANDING GEAR SHOWED ALL THREE DOWN AND LOCKED. THE CREW EXECUTED A NORMAL LANDING. THE AIRCRAFT WAS PLACED ON JACKS AND THE Mar 9, 1995 · N1110S · Lear 35A · Landing Gear ActuatorSDR 95ZZZX2032Bracket · crackedFOUND CRACK DURING THE 300-HOUR INSPECTION ON AIRCRAFT. REPAIRED CRACK AREA. SUBMITTER RECOMMENDS TO DUPLICATE SUPPORT CABLE. ADD TO FORWARD SIDE OF LOWER DOOR HALF. ACTT 5057.4. LANDINGS, 3824.Feb 27, 1995 · N35AW · Lear 35A · Passenger/Crew DoorsSDR 96ZZZX4712Windshield · crackedWINDSHIELD CRACKED THROUGH OUTER PLY JUST ABOVE DEFOG NOZZLE OUTLET. DISCREPANCY NOTED ON POST-FLIGHT INSPECTION. BOTH WINDSHIELDS ON THIS AIRCRAFT HAVE BEEN REWORKED I N THIS AREA TO REMOVE CRAZING CAUSED BY WINDSHIELD HEAT. WINDSHIELD MET MINIMUM THICKNESFeb 24, 1995 · N44AB · Lear 35A · Flight Compartment WindowsSDR 95ZZZX793Engine · lost oil pressENGINE LOST OIL PRESSURE, SECURED ENGINE AND RETURNED TO BUR. MAINTENANCE FOUND OIL FILTER BYPASS BUTTON DEPLOYED. APPROXIMATELY 1 PINT OF OIL AND METAL DRAINED FROM RESERVOIR, UNDER INVESTIGATION.Feb 9, 1995 · N886CS · Lear 35A · Turbine Engine Oil SystemSDR 95ZZZX1588Line · chafedLINES WERE CHAFING ON CLAMP ATTACHED TO GEAR DOOR ACTUATOR. LINE NEEDS SMALL BEND AT THIS AREA FOR PROPER CLEARANCE. (LINES WERE .50 INCH TO .75 INCH CHAFED THROUGH WALL THICKNESS.) LINES LOCATED IN AT WHEELWELL.Feb 7, 1995 · N81MR · Lear 35A · Landing Gear Brake SystemSDR 95ZZZX1587Line · chafedLINES WERE CHAFING ON CLAMP ATTACHED TO GEAR DOOR ACTUATOR. LINE NEEDS SMALL BEND AT THIS AREA FOR PROPER CLEARANCE. (LINES WERE .50 INCH TO .75 INCH CHAFED THROUGH WALL THICKNESS). LINES LOCATED IN AT WHEELWELL.Feb 7, 1995 · N969MC · Lear 35A · Landing Gear Brake System
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