JASC 3710
Service difficulty reports · 292
Reports filed under 3710 · Vacuum Distribution System, newest first.
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 jasc_code = '3710' 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.
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 jasc_code = '3710' ORDER BY difficulty_date DESC
Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
SDR 96ZZZX6091Pump · seizedLEFT ENGINE PNEUMATIC PUMP SEIZED AND FAILED DURING PNEUMATIC DE-ICE OPERATION DURING IFR/ICING CONDITIONS.SDR 96ZZZX6090Regulator · leakingPNEUMATIC REGULATOR LEAKS BADLY AT LOW PRESSURE SIDE. KEEPS PNEUMATIC SYSTEM FROM DEVELOPING PRESSURE.SDR 96ZZZX6087Pump · seizedPUMP SEIZED AND DRIVE SHAFT BROKEN.SDR 97ZZZX776Valve · malfunctionPRECISE FLIGHT STANDBY VACUUM SYSTEM FAILED TO OPERATE WHEN SELECTED. SUBSEQUENT INSPECTION REVEALED ACTUATION CONTROL CABLE TO BE LIMITED IN TRAVEL DUE TO INTERFERENCE WITH CONTROL VALVE LEVER. PREVIOUS EXPERIENCES WITH INSTALLING THIS SYSTEM HAVE FOUND THISDR 97ZZZX535Pump · failedPNEUMATIC PUMP INSTALLED ON AIRCRAFT 8-5-96 ALONG WITH NEW VACUUM FILTERS. ON 11-15-96 AT 128.4 HOURS PUMP FAILED BY SEIZING AND SHEERING DRIVE SHAFT. PUMP WAS REPLACED WITH ANOTHER NEW UNIT WITH NO SYSTEM DEFECTS NOTED. (NOTE ORIGINAL PUMP REPLACED AT 1002SDR 96ZZZX5837Pump · shaft shearedPUMP WAS INSTALLED ON FRESH O/H ENG 9-15-95, PUMP NEW FROM AIRBORNE, FAILED AT 369.6 HRS 10-30-96. SEIZED AND SHEARED SHAFT. FAILURE RATE ON THESE PUMPS FROM SUBMITTERS EXPERIENCE IS QUITE HIGH. ABOUT 50 PERCENT FAIL JUST PAST THIS WARRANTY TIME OF 1 YR OR SDR 96ZZZX5343Filter · blocked yokeFILTER PREVENTED YOKE FROM FORWARD MOVEMENT. WHEN FILTER WAS INSTALLED IT WAS NOT HARD MOUNTED. HOSES WERE HOLDING FILTER. HOSE CLAMP LOOSENED ALLOWING FILTER TO MOVE. HARD MOUNTED FILTER TO AIRCRAFT FRAME USING LOCKNUT AND ADEL CLAMP. REPLACED HOSES. SUSDR 96ZZZX5442Pump · failedVACUUM SYSTEM FAILED PER PILOT REPORT. GAINED ACCESS TO VACUUM PUMPS, FOUND DRIVE SHAFTS SHEARED. REPLACED BOTH PUMPS, FILTERS, AND EVACUATED LINES AS REQUIRED. (NOTE: IT WOULD BE POSSIBLE THAT ONE PUMP HAD BEEN INOPERABLE FOR SOME TIME.)SDR 96ZZZX5441Pump · failedVACUUM SYSTEM FAILED PER PILOT REPORT. GAINED ACCESS TO VACUUM PUMPS, FOUND DRIVE SHAFTS SHEARED. REPLACED BOTH PUMPS, FILTERS, AND EVACUATED LINES AS REQUIRED. (NOTE: IT WOULD BE POSSIBLE THAT ONE PUMP HAD BEEN INOPERABLE FOR SOME TIME.)SDR 97ZZZX682Pump · shaft wornVAC PUMP ARMATURE SHAFT WORN. PUMP MAY HAVE BEEN RUN DRY.SDR 96ZZZX5083Hose · defectivePURSUANT TO BEECHCRAFT SAFETY COMMUNIQUE DATED 8, 1996,AIRCRAFT AND PARTS INVENTORY ARE BEING INSPECTED FOR BAD HOSE STOCK WITH DATE CODE AS LISTED IN COMMUNIQUE. TEN FEET OF THIS HOSE FOUND IN STOCK INVENTORY. SUGGEST AD NOTE ON HOSE. AS MANY AIRCRAFT OTHESDR 96ZZZX4944Hose · deterioratedVACUUM HOSES NEEDED TO BE REMOVED FROM THE AIRCRAFT INSTRUMENT GYROS FOR INSTRUMENT REPLACEMENT. UPON REMOVAL, THE HOSE INNER AND OUTER CASINGS CRUMBLED. SUGGEST REPLACEMENT OF IMPERIAL EASTMAN HOSE WITH AEROQUIP '306' LOW PRESSURE HOSE. CONDITION IS NOT RESDR 96ZZZX4720Pump · shaft seizedDRIVE SHAFT IS SEIZED SOLID. UNDERSTAND THIS MAY OR MAY NOT BE NORMAL. SOME AIRBORNE REPS SAY IT IS OK. HOWEVER, MOST NEW PUMPS TURN FREELY. TECHNICIANS HAVE NO WAY TO IDENTIFY A GOOD/BAD NEW PUMP UNLESS TORQUE CRITERIA SUPPLIED. ALL APPEARANCES INDICATE SDR 96ZZZX4374Pump · drive shearedVACUUM PUMP DRIVESHAFT SHEARED AND SPLINES EXTREMELY WORN. IT STILL MADE VACUUM PRESSURE. SUBMITTER RECOMMENDS MORE FREQUENT INSPECTIONS OF DRIVE SPLINE ASSY (NOTE: WET DRIVE VACUUM PUMP).SDR 96ZZZX4719Filter · deterioratedVACUUM SYSTEM FILTER UPPER BLACK RUBBER CAP WILL CRUMBLE IN YOUR FINGERS. NOT CURED. BOTTOM APPEARS OK. SUBMITTER STATED VERY DANGEROUS, WILL BLOCK DOWN STREAM INSTRUMENTS. LABEL ON BOX HAD DATE 8/94 ON IT.SDR CA960826018Hose Fitting · cracked(CAN) DURING INSPECTION OF THE VACUUM HOSE FITTING. THE "B" NUT WAS FOUND CRACKED. SUBMITTER SUSPECTS THAT AN OVERTORQUING OF THE NUT TOOK PLACE.SDR 96ZZZX5252Pump · shaft shearedFOLLOWING PUMP REMOVAL FOR FAILURE, FOUND DRIVE SHAFT SHEARED. THIS IS A VACUUM TYPE SYSTEM.SDR 96ZZZX4818Hose · deterioratedVACUUM HOSE FROM CENTER VACUUM FILTER TO ATTITUDE INDICATOR HAS CRUMBLED, FALLING APART. NAME ON WHAT IS LEFT OF HOSES IS REDI-SEAL OR IMPERIAL EAST MAT.SDR 96ZZZX4094Hose · deterioratedTWO EACH CESSNA 152 FLIGHT SCHOOL AIRCRAFT REPORTED VACUUM INSTRUMENT PROBLEMS. FOUND VACUUM SYSTEM HOSES WERE CRUMBLING AND IN VERY POOR CONDITION, ALSO, ONE VACUUM PUMP FAILURE DUE TO INJESTION OF RED INNER SLEEVE PARTICLES FROM HOSES. CESSNA SEB 96-10 COVESDR 96ZZZX5251Pump · shaft shearedFOLLOWING PUMP REMOVAL FOR FAILURE, FOUND DRIVE SHAFT SHEARED. THIS IS A VACUUM TYPE SYSTEM.SDR 96ZZZX5250Pump · shaft shearedFOLLOWING PUMP REMOVAL FOR FAILURE, FOUND DRIVE SHAFT SHEARED. THIS IS A VACUUM TYPE SYSTEM.SDR AU960926Pump · incorrect fit(AUS) LH ENGINE VACUUM PUMP INCORRECTLY SEATED ON ACCESSORY PLATE - THEPUMP WAS RESTING ON AN ACCESSORY CASE OIL HOSE 45 DEGREE FITTING - THE VACUUM PUMP HAD BEEN FITTED JUST PRIOR TO FLIGHT - ENGINE OIL LEAKING - PERSONNEL/MAINTENANCE ERRORSDR CA960610014Pump Spline · sheared(CAN) PILOT REPORTED LOST INDICATION OF VACUUM AND LOST VACUUM ACTIVATION FLIGHT INSTRUMENTS. MAINTENANCE FOUND PROBLEM TO BE THE SHEARED SHAFT OF THE VACUUM PUMP. SUBMITTER STATES THAT THE PUMP SHOWED SIGNS OF OVERHEATING.SDR 96ZZZX3374Pump · drive shearedPILOT REPORTED LEFT GYRO PRESSURE INOPERATIVE. INSPECTED AND FOUND SHEARED LEFT PUMP. WHILE REPLACING SYSTEM FILTERS, FOUND IN-LINE FILTER INSTALLED BACKWARDS. THIS IS BELIEVED TO HAVE CAUSED FAILURE.SDR 96ZZZX2880Pump · failedFIRST PUMP REPLACED APPEARED TO HAVE OVER 800 HRS IN SERVICE. REPLACED WITH NEW AIRBORNE PUMP 10/95. IT LASTED 35.9 HRS. REPLACED AGAIN 12/95 LASTED 31.9 HRS. SYSTEM CHECKED WITH AIRBORNE 343 TEST KIT. PUMP LASTED 16.0 HRS. REPLACED AND SYSTEM CHECKED, LASDR 96ZZZX3076Air Pump · failedPUMP INSTALLED AND TESTED. APPROXIMATELY 15 MINUTES INTO FLIGHT, PUMP SHAFT SHEARED AFTER SPLITTING PUMP BODY RESULTING IN COMPLETE OIL LOSS IN ENGINE. SUBMITTER UNABLE TO DETERMINE EXACT CAUSE OF FAILURE.SDR 96ZZZX1513Pump · shaft failedDRIVE COUPLING SHEARED FOLLOWING PUMP FAILURE. PUMPS SEEM TO ONLY RUN ABOUT 400 HOURS PRIOR TO FAILURE. SUBMITTER HAS 5 AIRCRAFT RUNNING 2 EACH PER AIRCRAFT.SDR 96ZZZX2046Indicator · defectiveDURING ANNUAL INSPECTION, INSTRUMENT AIR PRESSURE GAUGE READ NORMAL WHEN EITHER ENGINE WAS RUN INDIVIDUALLY, BUT INDICATED HIGH WHEN BOTH ENGINES OPERATING. ALSO, NOTICED ACTIVATION OF DEICE SYS CAUSED INSTRUMENT TO 'PEG' FOR DURATION OF CYCLE. T/S SYS DISCLSDR 96ZZZX5247Pump · shaft shearedFOLLOWING PUMP REMOVAL FOR FAILURE, FOUND DRIVE SHAFT SHEARED. THIS IS A VACUUM TYPE SYSTEM.SDR 96ZZZX5246Pump · shaft shearedFOLLOWING PUMP REMOVAL FOR FAILURE, FOUND DRIVE SHAFT SHEARED. THIS IS A VACUUM TYPE SYSTEM.SDR 96ZZZX1514Filter · defectiveDURING ANNUAL INSPECTION FOUND THAT VACUUM SYSTEM REGULATOR FILLER WAS BLACK IN COLOR. DURING REMOVAL, FILTER DISINTEGRATED. THERE WAS NO LOG ENTRY TO INDICATE THIS FILTER WAS EVER CHANGED. IT IS IN A DIFFICULT AREA TO ACCESS AND WAS PROBABLY THE REASON ITSDR 96ZZZX680Pump · separatedVACUUM PUMP WAS REPORTED INOP. UNCOWLED ENGINE. FOUND PUMP LAYING IN ENGINE COMPARTMENT SEPARATED IN 2 PIECES. CASTING FAILURE.SDR 96ZZZX35Hose · failedAFTER PERFORMING AN ANNUAL INSPECTION WHICH INCLUDED CHANGING THE VACUUM SYSTEM CENTRAL AIR FILTER, THE ACFT DIVERTED FROM ITS FLIGHT PLAN TO MAKE A PRECAUTIONARY LANDING DUE TO A HORIZON GYRO FAILURE. FOUND ONE OF THE LATEX TUBES USED AS A VACUUM LINE IN THESDR 95ZZZX6572Pump · shaft shearedINSTALLED A RAPCO RE-BUILT VACUUM PUMP. CLEANED ALL LINES AND CHANGED BOTH FILTERS. PUMP FAILED AFTER 18 HOURS TIME IN SERVICE. FAILURE WAS DUE TO DRIVESHAFT SHEARING.SDR CA951114013Vacuum Pump · blockage(CAN)BEFORE TAKEOFF, DURING GROUND RUNS THE TWO WARNING LIGHTS "VACUUM PUMP INOP." LIGHT UP TOGETHER. INSPECTION FOUND THE RIGHT HAND PUMP SEIZED AND THE ONEWAY VALVE HALF BLOCKED BY A PIECE OF RUBBER. SOU RCE OF THE RUBBER IS UNKNOWN. FILTERS CHECKED AND CHANSDR 95ZZZX6401Pump · failedTHE VACUUM PUMP WAS OVERHAULED BY REPAIR STA NR 766-44. THE TIME SINCE OVERHAUL WAS 813 HOURS. SUBMITTER STATES THIS IS ABOUT NORMAL SERVICE LIFE FOR THIS TYPE OF PUMP, AND IS EVEN BETTER FOR AN OVERHAULED UNIT.SDR 95ZZZX6403Pump · shaft shearedPRESSURE PUMP SHEARED DRIVE SHAFT. UNIT SEIZED.SDR 96ZZZX5249Pump · shaft shearedFOLLOWING PUMP REMOVAL FOR FAILURE, FOUND DRIVE SHAFT SHEARED. THIS IS A VACUUM TYPE SYSTEM.SDR 95ZZZX4449Pump · making metalSPLINE GEAR ON ENGINE MOUNTED STANDBY VACUUM PUMP MAKING METAL. SEVERE WEAR PUSHING METAL OFF EDGE OF SPLINE TEETH. NO LUBRICATION. FREE TO FALL INTO SUMP. LUBED WITH MOLY B. 290 HRS TT. MOONEY SM DOES NOT CALL FOR LUBRICATION.SDR 95ZZZX2045Hose · failedINSP FOUND VACUUM SYSTEM HOSE DETERIORATION AND FAILURE.SDR 95ZZZX2044Hose · failedINSP FOUND VACUUM SYSTEM HOSE DETERIORATION AND FAILURE.SDR 95ZZZX1786Pump · failedPUMP FAILED AFTER OVERHAUL. FAILED LESS THAN 2 HOURS AFTER INSTALLATION.
Back to JASC 3710