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.

SDR HEEA0016127Valve · failedREPAIR DUE TO OIL TEMPERATURE EXCEEDED 120 DEGREES. CAUSE FOR OIL TEMP - OIL TEMP THERMAL VALVE P/N 724155, S/N 6056.Oct 6, 1998 · N141MA · Bell 407SDR 99ZZZX508Vernatherm · failedNEW VERNATHERM INSTALLED IN PA32R300 LYC IO540K1A5. COULD NOT CONTROL OIL TEMPERATURE. REPLACED PART, CORRECTED CONDITION.Oct 1, 1998 · N626JD · Piper PA32R300SDR AU981164Valve · missing(AUS) ENGINE OIL COOLER THERMOSTATIC BYPASS VALVE NOT FITTED TO THE ENGINE WITH THE HOLE BLANKED OFF BY A PLUG. FOUND DURING INSPECTION IAW AD/LYC/78 AMDT 5.Sep 11, 1998 · Cessna 172MSDR CA980908015Actuator · cracked(CAN) CREW REPORTED THE LEFT ENGINE BYPASS DOOR WOULD NOT OPEN. INTAKE BYPASS DOOR ACTUATOR FOUND FAILED. SHAFT HAD SHEARED OFF. LOOKS LIKE FATIGUE CRACK COMING FROM INTERNAL THREADS OF SHAFT THAT HOLDS ROD.Aug 23, 1998 · Dhav DHC8301SDR AU981129Valve · missing(AUS) ENGINE OIL SYSTEM THERMAL BYPASS VALVE MISSING. VALVE BODY WAS FITTED TO THE OIL FILTER ADAPTER AS A PLUG. FOUND DURING INSPECTION IAW AD/LYC/78 AMDT 5.Aug 17, 1998 · Cessna 172MSDR AU981500Valve · faulty(AUS) RIGHT ENGINE OIL COOLER VALVE ASSEMBLY FAULTY.Aug 13, 1998 · Dhav DHC8102SDR HEEA0015033Regulator · faultyENGINE OIL TEMPERATURE EXCEEDED 120 DEGREES.Jun 26, 1998 · N141MA · Bell 407SDR AU980762Valve · worn(AUS) ENGINE OIL TEMPERATURE CONTROL VALVE FACE WORN EXCESSIVELY. FOUND DURING INSPECTION IAW AD/LYC/78. PART TOTAL CYCLES: 1,830.Jun 26, 1998 · Socata TB20TRINIDADSDR AU980815Valve · faulty(AUS) ENGINE OIL TEMPERATURE VALVE (VERNATHERM) FAULTY. PART TOTAL CYCLES: 334.Jun 24, 1998 · Piper PA31350SDR AU980742Valve · failed(AUS) RIGHT ENGINE OIL TEMPERATURE VALVE FAILED.Jun 18, 1998 · Cessna 404CESSNASDR AU980595Thermo Valve · nut loose(AUS) THERMOSTATIC OIL COOLER BYPASS VALVE (VERNATHERM) SHAFT NUT LOOSE. FOUND DURING INSPECTION IAW AD/LYC/78 AMDT5. PART TC: 770.May 25, 1998 · Maule MX7180SDR AU980472Nut · loose(AUS) ENGINE THERMOSTATIC OIL COOLER BYPASS VALVE (VERNATHERM) CRIMP NUT LOOSE. NOTE: VALVE P/N 53E22144 IS NOT MENTIONED IN SB 318A AS A PROBLEM.Apr 27, 1998 · Socata TB10TOBAGOSDR 98ZZZX710Valve Assy · failedA NEW OIL TEMP CONTROL VALVE WAS USED FOR ENGINE OVERHAUL PN 5E19600. ENGINE OIL TEMP FOR FIRST 100 HRS TIS WAS NORMAL. THE NEXT 31.2 HRS TIS, OIL TEMP INCREASED TO RED LINE. PN 5E19600 WAS TESTED AND FOUND DEFECTIVE.Jan 30, 1998 · N5078U · Beech 65SDR LR7A9801Thermostat · failedPRECAUTIONARY SHUTDOWN NR 3 ENGINE AT 0400Z DUE TO HIGH OIL TEMP. FERRIED AIRCRAFT TO ANC, REPLACED NR 3 ENGINE OIL COOLER THERMOSTAT PER LOCKHEED MM CHAPTER 79-20, PAGE 203. GROUND RUNS ACCOMPLISHED, SYSTEM OPERATIONALLY TESTS OK.Jan 7, 1998 · N401LC · Lkheed 382GSDR LR7A9734Thermostat · failedPRECAUTIONARY SHUTDOWN NR 3 ENGINE AT 0400Z DUE TO HIGH OIL TEMP. FERRIED AIRCRAFT TO ANC, REPLACED NR 3 ENGINE OIL COOLER THERMOSTAT PER LOCKHEED MM CHAPTER 79-20, PAGE 203. GROUND RUNS ACCOMPLISHED, SYSTEM OPERATIONALLY TESTS OK.Jan 7, 1998 · N401LC · Lkheed 382GSDR 98ZZZX194Valve · failedAIRCRAFT HAD HIGH OIL TEMPERATURE AND LOW OIL PRESSURE. REMOVED BYPASS VALVE ASSY AND TESTED. VALVE ONLY MOVED .025 INCH. REPLACED WITH NEW VALVE. OPS CHECKED GOOD.Dec 16, 1997 · N737 · Parten P68TCOBSSDR 98ZZZX37Valve · defectiveLYCOMING SB 518C APPLIES. FOUND NUT LOOSE. REPLACED VERNATHERM. SUSPECT CAUSE: AGE AND WEAR.Dec 12, 1997 · N8215N · Piper PA28140SDR HEEA0012287Thermovalve · contaminatedOIL TEMP REGULATOR METAL CONTAMINATION.Dec 8, 1997 · N230UN · Bell 230SDR 98ZZZX150Valve · failedRECEIVED PN 53E22144 AND INSTALLED, OIL TEMPERATURE PROBLEM. REMOVED AND HAD TRUED PER SB 1316. FURTHER INSPECTION SHOWED NUT IMPROPERLY CRIMPED ON NEW VALVE, SEAT COULD NOT SIT SQUARELY ON NUT, NO THREADS PROTRUDED OUT THE TOP OF THE CRIMPED NUT. REPLACED Dec 1, 1997 · Mooney M20ESDR AU971529Valve · faulty(AUS) ENGINE OIL COOLER BYPASS VALVE FAULTY.Nov 14, 1997 · Piper PA31SDR AU971538Valve · faulty(AUS) ENGINE OIL TEMPERATURE VALVE FAULTY.Nov 13, 1997 · Piper PA31SDR PCAA9700601Valve · failedRIGHT ENGINE OIL TEMP REACHED 113 DEGREES AND WAS SLOWLY CLIMBING. MADE PRECAUTIONARY DIVERSION INTO BGM. AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE TROUBLESHOT SYSTEM, FOUND THE NR 2 ENGINE OIL COOLER DIVERTER VALVE AT FAULT. VALVE WAS REPLACED, SYSTEMNov 6, 1997 · N809EX · Dhav DHC8102SDR PCAA9700594Valve · failedAFTER TAKEOFF FROM SYR, NR 1 ENGINE OIL TEMP WENT TO 120 DEGREES 10 MINUTES INTO FLIGHT AND REMAINED STEADY UNTIL ENGINE WAS BROUGHT BACK TO FLIGHT IDLE. A/C DIVERTED INTO BGM, AND LANDED WITHOUT INCIDENT. MX TROUBLESHOT AND FOUND THE NR 1 ENGINE OIL COOLER Oct 31, 1997 · N818EX · Dhav DHC8102SDR AU971441Valve · seized(AUS) RH ENGINE OIL COOLER THERMOSTATIC BYPASS VALVE STUCK.Oct 20, 1997SDR AU971391Valve · damaged(AUS) ENGINE OIL COOLER BYPASS VALVE (VERNATHERM) FACE BADLY SCORED FROM CONTACT WITH VALVE SEAT WHICH WAS ALSO DAMAGED. FOUND DURING INSPECTION IAW AD/LYC/78 AMDT5 WHICH WAS OVERDUE BY SEVERAL HUNDRED HOURS. PERSONNAL/MAINTENANCE ERROR.Oct 17, 1997 · Cessna 177RGSDR AU971648Valve · failed(AUS) ENGINE OIL SYSTEM THERMAL BYPASS VALVE (VERNATHERM) RETAINING CLIP FAILED PREVENTING THE VALVE FROM CORRECT OPERATION.Sep 25, 1997 · Piper PA31350SDR 97ZZZX5067Bypass Valve · failedBYPASS VALVE UNIT INOPERATIVE. OIL TEMPERATURE REDLINES ON GROUND. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Sep 22, 1997 · N454MA · Mtsbsi MU2B60SDR 97ZZZX3896Vernatherm · seat looseENGINE INDICATION OF HIGH OIL TEMPERATURE. SEAT IN ACCESSORY CASE FOR VERNATHERM CAME LOOSE PREVENTING POSITIVE FLOW OF OIL TO COOLER. WEAR PATTERN ON VERNATHERM AND SEAT INDICATE THE SEAT WAS INSTALLED COCKED AT AN ANGLE. RECORDS INDICATE ENGINE WAS OVERHAAug 1, 1997 · N3581X · Piper PA31350SDR 97ZZZX3104Valve · crimp nut looseDURING A00-HOUR INSPECTION OF OIL SCREEN, FOUND NUT ON END OF VERNATHERM THERMOSTATIC VALVE WAS LOOSE. ACCORDING TO LYCOMING SB 518C, THIS PART NUMBER AND SERIAL NUMBER ARE NOT REQUIRED TO HAVE THE INSPECTIONS LISTED TO DETERMINE IF THE NUT IS LOOSE. VALVE WJun 24, 1997 · N8497Y · Robsin R22ALPHASDR SABA9700019Valve · failedCLT - FLT 5121 - AFTER TAKEOFF LEFT ENGINE OIL TEMP WENT INTO THE RED ARC. AIRCRAFT RETURNED TO CLT FOR AN UNEVENTRUL LANDING. MAINTENANCE WAS THEN DISPATCHED TO THE AIRCRAFT. THE EFFECTED ENGINE WAS TROUBLE SHOT AND THE LEFT OIL COOLER THERMOSTATIC BYPASS Jun 23, 1997 · N159PC · Bag JETSTM3101SDR PCAA9700421Valve · failedUPON CLIMB-OUT FROM BWI, THE NR 1 ENGINE OIL TEMP WENT TO 120 DEGREES FOR APPROXIMATELY 10 MINUTES. A/C RETURNED TO FIELD, BWI, AND LANDED WITHOUT INCIDENT. MAINTENANCE TROUBLESHOT SYSTEM, REMOVED AND REPLACED NR 1 ENGINE OIL TEMP BULB, AND OIL COOLER DIVERTMay 26, 1997 · Dhav DHC8102SDR 97ZZZX2625Valve · loose crimp nutVERNATHERM VALVE INSPECTED PER LYCOMING SB 518C. NUT LOOSE. SUBMITTER STATED VALVES CONTINUE TO BE A PROBLEM. THIS BULLETIN SHOULD BE MADE INTO AN AIRWORTHINESS DIRECTIVE.May 16, 1997 · N8387D · Piper PA32R301TSDR 97ZZZX2626Valve · nut looseFOUND NUT LOOSE. LYC SB 518C DOES NOT APPLY. THIS VALVE ABOVE S/N LIST IN SB 518C. USE VALVE MADE BY SUPERIOR. IT HAS ROLL PIN TO HOLD NUT ON VALVE.Apr 28, 1997 · N89PA · Piper PA31350SDR ABXA9700933Regulator · defectiveDURING FLIGHT NR 3 ENGINE WAS INTENTIONALLY SHUTDOWN FOR HIGH OIL TEMP. REPLACED NR 3 ENGINE OIL COOLER REGULATOR.Apr 25, 1997 · N843AX · Doug DC861SDR 97ZZZX1708Valve · defectiveAT ENGINE OVERHAUL, THE THERMOSTATIC VALVE WAS REMOVED AND FOUND WITH AN EXTREMELY ROUGH SEAT. THE SPRING WAS ALSO FOUND COMING LOOSE. THE VALVE IS SUSPECT TO LYC SI 1423, BUT WAS NOT A FACTOR BECAUSE THE RETAINING NUT IS OK.Mar 24, 1997 · N4386B · Piper PA32R301TSDR CA970227001Retaining Plate · broken(CAN) OIL LEAK LED TO INFLIGHT SHUTDOWN. POST FLIGHT INSPECTION FOUND THERMOSTATIC OIL BYPASS VALVE RETAINING PLATE BROKEN. THIS ALLOWED OIL PRESSURE TO FORCE OUT THE PLUG WHICH LED TO AN OIL LEAK CAUSING THE INFLIGHT SHUTDOWN.Feb 16, 1997 · Beech 200BEECHSDR AU970112Nut · loose(AUS) THERMOSTATIC OIL COOLER BYPASS VALVE (VERNATHERM) NUT LOOSEJan 29, 1997 · Piper PA25235SDR RAIA970124Vernatherm · stuckSTL - FLT 7073 - LEFT ENGINE OIL TEMP INDICATED HIGH. MAINTENANCE REPLACED THE LEFT ENGINE VERNATHERM VALVE. (M)Jan 25, 1997 · N342TE · Bag JETSTM3201SDR CA970114008Thermostat Act · faulty(CAN) FIFTEEN MINUTES IN CLIMB THE #2 ENGINE BEGAN TO LOSE OIL PRESSURE. THE CREW ELECTED TO SHUT THE ENGINE DOWN. POST FLIGHT INSPECTION FOUND THE OIL COOLER VERNATHERM THERMOSTATIC ACTUATOR WAS LEAKING CAUSING A GRADUAL LOSS OF OIL PRESSURE. FURTHER INSPECTIDec 20, 1996 · Dhav DHC7103SDR 96ZZZX5647Vernatherm · cone wornDURING VALVE INSPECTION IAW LYCOMING SB 518C, EXCESSIVE WEAR ON THE CONE AREA WAS NOTED WHERE CONE CONTACTS SEAT. WEAR MEASURED FROM .06 INCH TO .1 INCH AROUND CIRCUMFERENCE OF THE CONE. THE SEAT AREA INSIDE THE ACCESSORY CASE ALSO SHOWED EXCESSIVE WEAR AND Oct 23, 1996 · N40ST · Piper PA31350SDR 96ZZZX5567Valve · failed20 MINUTES INTO A FLT, THE OIL TEMP WENT FULL HOT. A CROSS CHECK OF INSTRUMENTS REVEALED ALL CYL TEMPERATURES NORMAL. THERE WAS NO LOSS OF ENG POWER, HOWEVER, OIL PRESS WAS LOWER THAN NORMAL. THE ONLY WAY TO LOWER THE OIL TEMP WAS TO REDUCE POWER AND PUT THEOct 23, 1996 · N1148N · Mooney M20JSDR CA960826005Vernatherm Valve · failed(CAN) DURING CRUISE, THE CREW NOTICED HIGH OIL TEMP ON THE RIGHT ENGINE. INVESTIGATION REVEALED HIGH OIL TEMP IN THE TANK AND COLD OIL IN THE COOLER. THE VERNATHERM VALVE P/N 8A575-000 S/N 000123 WAS REPLACED WITH A SERVICEABLE ONE AND ENGINE GROUND RUN. THE OAug 8, 1996 · Swrngn SA226TCSDR CA960812006Valve · stuck(CAN) DURING CRUISE, THE CREW NOTICED HIGH OIL TEMP ON RT ENGINE AND DIVERTED FOR LANDING. MAINTENANCE FOUND HIGH OIL TEMP IN THE OIL TANK AND COOL OIL IN THE COOLER. THE VERNATHERM VALVE P/N 8A575-000 WAS REPLACED AND GROUND CHECKED SERVICEABLE.Aug 8, 1996 · Swrngn SA226TCSDR AU960941Valve · faulty(AUS) ENGINE OIL COOLER THERMOSTATIC BYPASS VALVE (VERNATHERM) RETENTION NUT SEPARATED FROM UNIT - THE NUT WAS LOCATED IN THE OIL SUPPLY LINE TO THE OIL COOLER - SUSPECT AD/LYC/78 HAD NOT BEEN COMPLIED WITHJul 5, 1996 · Piper PA31350SDR 96ZZZX3682Valve · crimp nut looseINSPECTION FOUND LOOSE CRIMP NUT ON THERMOSTATIC BYPASS VALVE (EVEN WITH NEW STYLE PART).Jul 2, 1996 · N60823 · Child S2BPITTSSDR 96ZZZX3677Valve · nut looseTHERMO BYPASS VALVE FAILED LYC SB 518C. LOCKNUT WAS SO LOOSE ITS REPAIR IAW SB 518C WAS NOT POSSIBLE. MOST OF THE VALVES SUBMITTER REPORTS (APPROXIMATELY 85 TO 90 PERCENT) ARE FAILING THE INSPECTION AND REPAIRED ONLY 3 DUE TO THE EXTREMELY LOOSE LOCKNUTS. SJun 21, 1996 · N35584 · Piper PA31350SDR 96ZZZX3093Valve · nut looseVERNATHERM VALVE SEAT RETAINING NUT LOOOSE AND WORKING ON RETAINING SHAFT THREADS.Jun 3, 1996 · N777KT · Piper PA31350SDR 96ZZZX3092Valve · nut strippedVERNATHERM VALVE SEAT RETAINING NUT STRIPPED AND SEPARATED FOR SHAFT OF VALVE. ALSO, RETAINING CLIP FOR VERNATHERM BODY BROKEN INTO 2 PARTS, AND BODY BROKEN AT CLIP ATTACH AREA.Jun 3, 1996 · N777KT · Piper PA31350SDR 96ZZZX3091Valve · nut looseTHE END RETAINING NUT ON THE VERNATHERM IS LOOSE. LYCOMING SB 518C DOES NOT APPLY TO THIS PART NUMBERED VERNATHERM.Jun 3, 1996 · N3582X · Piper PA31350SDR 96ZZZX3088Valve · wornINSPECTION FOUND THE CENTER SPRING ASSY RETAINING CLIP LOOSE ON THE VERNATHERM BODY.Jun 3, 1996 · N3582X · Piper PA31350
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