JASC 7922
Service difficulty reports · 268
Reports filed under 7922 · Engine Oil Temperature Regulator, 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 = '7922' 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 = '7922' 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 96ZZZX2185Valve · crimp nut looseLYCOMING SB 518C APPLIES, NUT LOOSE ON END OF VERNATHERM, PROBABLY DUE TO VIBRATION. REPLACED DEFECTIVE PART WITH A NEW PART NOT CALLED OUT IN THE SERVICE BULLETIN.SDR 96ZZZX2184Valve · crimp nut looseLYCOMING SB 518C APPLIES, NUT LOOSE ON END OF VERNATHERM. PROBABLY DUE TO VIBRATION. REPLACED DEFECTIVE PART WITH A NEW PART NOT CALLED OUT IN THE SERVICE BULLETIN.SDR 96ZZZX2183Valve · crimp nut looseLYCOMING SB 518C APPLIES, NUT LOOSE ON END OF VERNATHERM. PROBABLY DUE TO VIBRATION. REPLACED DEFECTIVE PART WITH A NEW PART NOT CALLED OUT IN THE SERVICE BULLETIN.SDR 96ZZZX2182Valve · crimp nut looseLYCOMING SB 518C APPLIES. NUT LOOSE ON END OF VERNATHERM, PROBABLY DUE TO VIBRATION. REPLACED DEFECTIVE PART WITH A NEW PART NOT CALLED OUT IN THE SERVICE BULLETIN.SDR 96ZZZX2181Valve · crimp nut looseLYCOMING SB 518C APPLIES. NUT LOOSE ON END OF VERNATHERM, PROBABLY DUE TO VIBRATION. REPLACED DEFECTIVE PART WITH A NEW PART NOT CALLED OUT IN THE SERVICE BULLETIN.SDR 96ZZZX2085Valve · nut missingLOCKNUT ON VALVE CAME LOOSE. UPON INSPECTION, NUT WAS MISSING. C/W SB 518C. SUBMITTER SUGGESTS BETTER QUALITY CONTROL AT MFG.SDR CA960404004Thermo Valve · loose nut(CAN)INSPECTION AS PER LYCOMING SB 518A FOUND NUT CRIMPED ONLY ON ONE SIDE AND EXTREMELY LOOSE.SDR 96ZZZX2556Valve · crimp nut goneON REMOVAL TO C/W SB 518C, FOUND NUT HAD FALLEN OFF OF VALVE, SPRING AND SEAT WERE SEPARATED FROM VALVE WITH NUT LODGED IN OIL PASSAGE FROM VALVE. THE ONLY CONTAMINANTS IN OIL FILTER WAS SOME BRASS FROM THE SEAT WORKING AGAINST NUT.SDR AU960423Circlip · failed(AUS) LH ENGINE OIL COOLER BYPASS VALVE (VERNATHERM) BODY CIRCLIP BROKEN - ONE PIECE OF BROKEN CIRCLIP LODGED IN OIL PRESSURE RELIEF VALVE - SUSPECT CIRCLIP INCORRECTLY HEAT TREATED - RH ENGINE VERNATHERM SIMILARLY AFFECTEDSDR 96ZZZX1622Valve · spring wornTHE OIL FILTER BYPASS VALVE SPRING WAS FOUND WORN IN-HALF. THE BYPASS VALVE WAS OPEN ALLOWING OIL TO BYPASS THE FILTER.SDR 96ZZZX1104Vernatherm · failedVERNATHERM BROKE AT ROLL PIN HOLE. ALL PARTS RECOVERED. TOTAL TIME ON VERNATHERM 693.7 HOURS SINCE NEW.SDR AU960117Nut · loose(AUS) ENGINE THERMOSTATIC OIL COOLER BYPASS VALVE (VERNATHERM) NUT LOOSE - FOUND DURING INSPECTION IAW AD/LYC/78SDR AU960174Nut · loose(AUS) ENGINE THERMOSTATIC OIL COOLER BYPASS VALVE (VERNATHERM) NUT LOOSE - FOUND DURING INSPECTION IAW AD/LYC/78SDR 96ZZZX670Valve · crimp nut detachPILOT REPORTS TO MAINTENANCE THE RT ENGINE WAS VERY SLOW TO WARM UP TO NORMAL OIL TEMP RANGE, AND OIL PRESSURE STAYED IN HIGH RANGE. ALSO WHILE IN A DESCENT, THE OIL TEMP WOULD INDICATE BELOW OPERATING TEMP. REMOVED THERMOSTATIC BYPASS VALVE FOR INSPECTION. SDR 96ZZZX72Valve · defectiveRED TAG IAW SB 518C ABOUT 85 PERCENT OF THESE VALVES INSPECTED HAVE FAILED IAW SB 518C. SUBMITTER RECOMMENDS SB BE MADE AN AD.SDR CA951212008Valve · loose nut(CAN)DURING COMPLIANCE WITH LYCOMING SERVICE BULLETIN 518C (INSPECTION OF THERMOSTATIC BYPASS VALVE) THE VERNATHERM CRIMP NUT WAS FOUND LOOSE. VERNATHERM VALVE REPLACED.SDR 96ZZZX479Valve · loose crimp nutINSPECTION OF OIL TEMPERATURE BYPASS VALVE REVEALED LOOSE NUT. REF: LYC SB 518C, 5-2-95. THIS SB LISTS P/N 53E19980, S/N 159, AND HIGHER AS N/A. SUBMITTER SUGGESTS SB BE REVISED TO INCLUDE ALL PART NUMBERED AND SERIAL NUMBERED VALVES UNTIL LATEST STYLE PARSDR 95ZZZX7031Valve · loose crimp nutDURING INSPECTION PER LYCOMING SB 518C, A NUT WAS FOUND LOOSE ON SHAFT. NOTE THAT SERIAL NUMBER OF THIS UNIT IS BEYOND RANGE OF SERVICE BULLETIN AND, THEORETICALLY, HAS BEEN REDESIGNED TO ELIMINATE THIS PROBLEM. (FIFTH VERNATHERM WITH PROBLEM FOUND IN LAST TSDR 95ZZZX6765Valve · defectiveINSPECTION PER SB, VERNATHERM VALVE FAILED INSPECTION. SUBMITTER STATED 80 PERCENT OF THESE VALVES INSPECTED HAVE FAILED SB 518B. SUBMITTER RECOMMENDS TO HAVE AN AD ADDRESS THIS.SDR 95ZZZX6740Valve · defectiveINSPECTION OF VERNATHERM VALVE PER SB FOUND VALVE UNSERVICEABLE. SUBMITTER STATED 80 PERCENT OF THESE VALVES INSPECTED HAVE FAILED SB S18B. SUBMITTER RECOMMENDS TO HAVE AN AD ADDRESS THIS.SDR CA951204002Thermostat · failed(CAN)THERMOSTAT FAILED TO OPEN WHICH DID NOT ALLOW OIL TO PASS THROUGH COOLER. OIL TEMPERATURE EXCEEDED LIMITS AND ENGINE WAS SHUT DOWN.SDR 96ZZZX4388Valve · crimp nut looseDURING INSPECTION PER LYCOMING SB 518C, NUT FOUND LOOSE ON SHAFT. NOTE THAT SERIAL NUMBER OF THIS UNIT IS BEYOND RANGE OF SERVICE BULLETIN AND THEORETICALLY HAS BEEN REDESIGNED TO ELIMINATE THIS PROBLEM.SDR 96ZZZX4347Valve · crimp nut looseDURING INSPECTION PER LYCOMING SB 518C, NUT FOUND LOOSE ON SHAFT. NOTE THAT SERIAL NUMBER OF THIS UNIT IS BEYOND RANGE OF SB AND, THEORETICALLY, HAS BEEN REDESIGNED TO ELIMINATE THIS PROBLEM.SDR 96ZZZX4346Valve · crimp nut looseDURING INSPECTION PER LYCOMING SB 518C, NUT FOUND LOOSE ON SHAFT. NOTE THAT SERIAL NUMBER OF THIS UNIT IS BEYOND RANGE OF SB AND, THEORETICALLY, HAS BEEN REDESIGNED TO ELIMINATE THIS PROBLEM.SDR 96ZZZX4238Valve · crimp nut looseDURIGN INSPECTION PER LYCOMING SB 518C, CRIMP NUT FOUND LOOSE ON SHAFT. NOTE THAT SERIAL NUMBER OF THIS UNIT IS BEYOND RANGE OF SERVICE BULLETIN AND THEORETICALLY, HAS BEEN REDESIGNED TO ELIMINATE THIS PROBLEM.SDR 95ZZZX6614Valve · defectiveDURING OVERHAUL, THERMOSTATIC BYPASS WAS INSPECTED. IN ADDITION TO CRIMP NUT BEING LOOSE, SNAP RING THAT HOLDS BODY OFF VALVE WAS FOUND TO HAVE EXCESSIVE PLAY. DISSASSEMBLY SHOWED SNAP RING WORN APPROXIMATELY 50 PERCENT AND BRASS PORTION OF PLUNGER THAT IT SSDR 95ZZZX6011Valve · defectiveTHIS VALVE HAS VERY LITTLE TIME ON IT. SUBMITTER STATED 80 PERCENT OF ALL VALVES INSPECTED WITH THIS PIN HAVE FAILED INSPECTION IAW SB S18B. RECOMMEND SB BE MADE INTO AN AD.SDR 95ZZZX6052Valve · loose crimp nutDURING INSPECTION OF THERMOSTATIC BYPASS VALVE PER LYC SB518C, THE RETAINING NUT WAS FOUND LOOSE AND THE SPRING PRESSURE WAS NOTICEABLY LESS THAN OTHER VALVES PREVIOUSLY INSPECTED. ENGINE TSMOH, 320.0 HOURS.SDR 95ZZZX6055Valve · loose crimp nutVERNATHERM VALVE WAS REMOVED FROM ENGINE, RETAINING NUT WAS FOUND LOOSE. THIS VERNATHERM DID NOT APPLY TO SB 518C BY SERIAL NUMBER. IT WAS INSPECTED DUE TO PREVIOUS REPORTS OF VERNATHERM FAILURES WHICH MET SB 518C CRITERIA. SUBMITTER STATED POOR DESIGN, RE-SDR 95ZZZX4557Valve · loose nutAIRCRAFT DEVELOPED HIGH OIL TEMPERATURE (120 DEGREES CELSIUS) AND LOW OIL PRESSURE (60 PSI) DURING ROUTINE TRAINING MISSION. SEVERAL AIRCRAFT IN THE FLEET HAD SIMILAR PROBLEMS WHICH WERE RESOLVED BY CHANGING DEFECTIVE THERMOSTATIC BYPASS VALVES. WHEN THIS VASDR 95ZZZX4583Valve · crimp nut looseWHILE COMPLYING WITH LYCOMING SB NR 518C DURING 100-HOUR INSPECTION, FOUND THERMOSTATIC OIL BYPASS VALVE HAD LOOSE CRIMP NUT, ACCOMPLISHED REPAIR IAW LYCOMING SERVICE INSTRUCTION NR 1423 AND REINSTALLED.SDR 95ZZZX4558Valve · malfunctioningAIRCRAFT DEVELOPED HIGH OIL TEMPERATURE (120 DEGREES CELSIUS) AND LOW OIL PRESSURE (60 PSI) DURING A ROUTINE TRAINING MISSION. OUTSIDE AIR TEMPERATURE WAS ABOVE 80 DEGREES FAHRENHEIT. AIRCRAFT PILOT MADE ATTEMPT TO COOL ENGINE DURING RETURN FLIGHT TO THE AIRSDR 95ZZZX5106Valve · defectiveTO COMPLY WITH SB 518C. A NEW THERMOSTATIC BYPASS VALVE WAS INSTALLED. DURING RUN-UP TEST, THE NEW VALVE FAILED TO CONTROL OIL TEMPERATURE. THE VALVE WAS RETURNED TO VENDOR AND ANOTHER NEW ONE WAS INSTALLED AND FUNCTIONED SATISFACTORY.SDR 95ZZZX4556Valve · malfunctioningAIRCRAFT DEVELOPED HIGH OIL TEMPERATURE (120 DEGREES CELSIUS) AND LOW OIL PRESSURE (60 PSI) DURING A ROUTINE TRAINING MISSION. OUTSIDE AIR TEMPERATURE WAS ABOVE 80 DEGREES FAHRENHEIT. AIRCRAFT PILOT MADE ATTEMPT TO COOL ENGINE DURING THE RETURN FLIGHT TO AIRSDR 95ZZZX4555Valve · malfunctioningAIRCRAFT DEVELOPED HIGH OIL TEMPERATURE (120 DEGREES CELSIUS) AND LOW OIL PRESSURE (60 PSI) DURING A ROUTINE TRAINING MISSION. OUTSIDE AIR TEMPERATURE WAS ABOVE 80 DEGREES FAHRENHEIT. AIRCRAFT PILOT MADE AN ATTEMPT TO COOL ENGINE DURING RETURN FLIGHT TO AIRFSDR 95ZZZX4200Valve · defectiveINSPECTION OF THERMOSTATIC VALVE ON 5 ENGINES FOUND 3 NOT SERVICEABLE.SDR 96ZZZX712Valve · crimp nut looseWHEN COMPLYNG WITH TEXTRON/LYCOMING SB 518A, NUT ON TOP OF VALVE LOOSE. HAVE PERFORMED THIS SB FOUR MORE TIMES, ALL VALVE NUTS WERE LOOSE, VARIOUS TIMES ON PARTS. RECOMMEND ALL VALVES BE REPLACED WITH NEW NUMBER PER SB518A.SDR 95ZZZX4517Valve · spring brokenWHILE COMPLYING WITH TEXTRON LYCOMING SB 518A, REMOVED THE BYPASS VALVE AND FOUND THE SPRING WHICH MAINTAINS PRESSURE ON THE SEAT BROKEN. PART OF THE SPRING HAD ROTATED AND WAS EXTENDING BEYOND THE VALVE SEAT. FATIGUE SUSPECTED AS CAUSE. RECOMMEND INSPECTINSDR 96ZZZX171Valve · crimp nut looseDURING OIL CHANGE AND C/W TEXTRON LYCOMING MANDATORY SB 518C, FOUND THE VERNATHERM CRIMP NUT WAS EXTREMELY LOOSE. THE ENGINE WAS OVERHAULED AT 1,642 HOURS AND THIS VALVE WAS NOT REPLACED AS RECOMMENDED BY THE MANUFACTURER. SUBMITTER SUGGESTS SB 518C BE ACCOMSDR 95ZZZX3619Valve · crimp nut looseVALVE WAS REMOVED BECAUSE UNABLE TO READ S/N WHILE INSTALLED ON ENGINE. ONCE VALVE REMOVED, NUT WAS CHECKED FOR LOOSENESS AND FOUND VERY LOOSE. THIS VALVE, ACCORDING TO LYCOMING SB 518C, IS NOT EVER SUPPOSED TO BE APPLICABLE. LYCOMING WAS NOTIFIED OF THIS FSDR 95ZZZX3668Valve · crimp nut looseINSPECTION OF BYPASS VALVE IAW SB 518C REVEALED THE CRIMP NUT WAS LOOSE. VALVE WAS REPLACED. RECOMMEND MANDATORY REPLACEMENT OF DEFECTIVE VALVES.SDR 95ZZZX3669Valve · crimp nut looseINSPECTION OF BYPASS VALVE IAW SB 518C REVEALED THE CRIMP NUT WAS LOOSE. VALVE REPLACED. RECOMMEND MANDATORY REPLACEMENT OF DEFECTIVE VALVES.SDR 95ZZZX3324Valve · crimp nut looseWHILE COMPLYING WITH LYCOMING SB NR 518C, FOUND VALVE RETAINING NUT LOOSE (BOTH ENGINES). RECOMMEND NUT BE WELDED AT FACTORY. NO ATTEMPTS SHOULD BE MADE TO RE-CRIMP NUTS AS THEY WILL FRACTURE AND FRACTURE MAY GO UNNOTICED. SUBMITTER SUGGESTS AD NOTE BE ISSUSDR 95ZZZX3323Valve · crimp nut looseWHILE COMPLYING WITH LYCOMING SB NR 518C, FOUND VALVE RETAINING NUT LOOSE (BOTH ENGINES). RECOMMEND NUT BE WELDED AT FACTORY. NO ATTEMPTS SHOULD BE MADE TO RE-CRIMP NUTS AS THEY WILL FRACTURE AND FRACTURE MAY GO UNNOTICED. SUBMITTER SUGGESTS AD NOTE BE ISSUSDR 95ZZZX3469Valve · loose crimp nutFOUND BAD THERMOSTAT VALVE DURING ANNUAL INSPECTION IN COMPLIANCE WITH SB 518C. NUT ON END OF VALVE WAS NOT CRIMPED CORRECTLY AND THE THREADS WERE WORN FROM THE NUT MOVING. IT WAS READY TO COME APART.SDR 95ZZZX3666Valve · nut missingDURING ANNUAL INSPECTION, LYCOMING SB 518C WAS C/W. UPON REMOVAL OF THERMOSTATIC BYPASS VALVE ON THE RIGHT ENGINE, THE CRIMP NUT HAD SEPARATED FROM THE VALVE ASSEMBLY. A SEARCH WAS CONDUCTED AND THE CRIMP NUT WAS LOCATED IN THE INLET SIDE OF THE OIL COOLER. SDR 95ZZZX3079Valve · crimp nut looseINSPECTED PART PER LYC SB 518C. FOUND LOOSE CRIMP NUT. REPLACED WITH NEW PART.SDR 95ZZZX3083Valve · crimp nut looseC/W SB 518C (LYC) CHECKED VERNATHERM NUT, FOUND LOOSE, NOT CRIMPED CORRECTLY. NEW PART ON ORDER. PREVIOUSLY FOUND 3 OTHER AIRCRAFT OUT OF 5 AIRCRAFT CHECKED WITH VERNATHERM NUTS LOOSE, AND THEY WERE REPLACED WITH NEW VERNATHERM VALVES AFTER INSPECTION TO C/WSDR 95ZZZX3082Valve · crimp nut looseC/W SB 518C (LYC) CHECKED VERNATHERM NUT, FOUND LOOSE, NOT CRIMPED CORRECTLY. NEW PART ON ORDER. PREVIOUSLY FOUND 3 OTHER AIRCRAFT OUT OF 5 AIRCRAFT CHECKED WITH VERNATHERM NUTS LOOSE, AND THEY WERE REPLACED WITH NEW VERNATHERM VALVES AFTER INSPECTION TO C/WSDR 95ZZZX3081Valve · crimp nut looseC/W SB 518C (LYC) CHECKED VERNATHERM NUT, FOUND LOOSE, NOT CRIMPED CORRECTLY. NEW PART ON ORDER. PREVIOUSLY FOUND 3 OTHER AIRCRAFT OUT OF 5 AIRCRAFT CHECKED WITH VERNATHERM NUTS LOOSE, AND THEY WERE REPLACED WITH NEW VERNATHERM VALVES AFTER INSPECTION TO C/W
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