JASC 7720

Service difficulty reports · 696

Reports filed under 7720 · Engine Temperature Indicating 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 = '7720'
  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 ASAA2018012623324Fault Message · activatedFOUND THE NR 1 ENGINE ECONOMIC FAULT CODE 73-31371, UPPER EGT SECTORS READING HIGH. ACFT GROUNDED.Jan 26, 2018 · N597AS · Boeing 737890SDR ASAA2018010623105Fault Code · activatedNR 2 ENGINE MAINTENANCE MESSAGE 77-10842, THE TOP RIGHT EGT SIGNAL T49551 IS OUT OF RANGE. ACFT GROUNDED. ACCOMPLISHED FIM 77-21 TASK 801 AND FOUND THE NR 2 ENGINE MESSAGE 77-10842 ON RECENT HISTORY LEGS 0-3. INSPECTED T49.5 PROBE AND EGT SYSTEM IAW AMM 77Jan 6, 2018 · N469AS · Boeing 737990ERSDR ASAA2017122523026Warning Message · false activationNR 1 ENGINE ECONOMIC FAULT 73-11371, UPPER EGT SECTORS READING HIGH. ACFT GROUNDED. PERFORMED EEC BITE IAW FIM 73-00, TASK 801. FAULT 73-11371 IS NOT ACTIVE IN RECENT FAULTS. PERFORMED FIM 73-11, TASK 801 WITH ENGINE RUNNING, T49.5 PARAMETERS ARE S1 413,Dec 25, 2017 · N558AS · Boeing 737890SDR ASAA2017121522937Probe · failedWHILE PERFORMING T/C 78273000 FOUND F/C 73-31372 NR 2 ENGINE. ACFT GROUNDED. PERFORMED FIM 77-21 TASK 801. COMPLETED EGT INDICATION SYSTEM TROUBLESHOOTING AND CONNECTOR CLEANING IAW AMM 77-21-00-140-801. PERFORMED T49.5 AND EGT SYSTEM INSPECTION IAW AMM 77Dec 15, 2017 · N590AS · Boeing 737890SDR ASAA2017120522842Probe · failedECONOMIC FAULT WHILE PERFORMING TASK CARD 78273000 #2 ENGINE S/N 869-209 FAULT # MS 73-313272 UPPER EGT SECTORS READING HIGH FAULT LEG #4. GROUNDED - YES. PERFORMED B737-800 FIM 77-21 TASK 801. COMPLETED EGT INDICATION SYSTEM TROUBLESHOOTING AND CONNECTOR CLEDec 5, 2017 · N590AS · Boeing 737890SDR ASAA2017112522714Fault Message · illuminatedWHILE ACCOMPLISHING TC 78273000, FOUND ECCONOMIC FAULT ON THE NR 1 ENGINE. MESSAGE 73-31372, FOR UPPER EGT SECTORS READING HIGH. ACFT GROUNDED. NO RECENT FAULTS NOTED IAW T/C 78273000.Nov 25, 2017 · N584AS · Boeing 737890SDR ASAA2017112422706Fault Code · illuminatedWHILE PERFORMING T/C 78273000, FOUND THE NR 2 ENGINE RECENT ECONOMIC FAULT, CODE 77-10842, THE TOP RIGHT EGT SIGNAL T495S1 IS OUT OF RANGE. ACFT GROUNDED. ACCOMPLISHED EEC BITE TEST, FAULT HISTORY IAW AMM 73-21-00-740-801-F00, STEP (D). NO FAULT HISTORY.Nov 24, 2017 · N469AS · Boeing 737990ERSDR ASAA2017112322688Warning Message · false activationFMC CDU NR 1 ENGINE FAULT 73-21371 FOR UPPER EGT SECTORS READING HIGH, ECONOMIC FAULT, ACFT GROUNDED. ACCOMPLISHED INITIAL EVALUATION OF FIM 73-11, 801. SECTORS 1 & 4 PARAMETERS WITHIN 100 DEGREES OF SECTORS 2 & 3. EEC TEST PASSED WITH NO FAULTS. NO MX MENov 23, 2017 · N597AS · Boeing 737890SDR ASAA2017110522483Probe · dirtyWHILE ACCOMPLISHING T/C 78273000, FOUND FAULT MESSAGE IN HISTORY FOR NR 1 ENGINE, MESSAGE 77-10851. THE BOTTOM RIGHT EGT SIGNAL T49552 IS OUT OF RANGE. ACFT GROUNDED. TROUBLESHOT, REPAIRED AND TESTED. TESTED FIM 77-21, 802. CLEANED THE S2 PROBE IAW AMNov 5, 2017 · N428AS · Boeing 737990ERSDR ASAA2017103122439Fault Message · illuminatedWHILE PERFORMING T/C 78273000, FOUND A FAULT MESSAGE 77-20872 FOR THE NR 2 ENGINE. THE TOP LEFT EGT SIGNAL IS OUT OF RANGE. ECONOMIC FAULT. ACFT GROUNDED. ACCOMPLISHED TROUBLESHOOTING FOR THE NR 2 ENGINE FAULT 77-20872 IAW FIM 77-21, TASK 804, EEC BITE SOct 31, 2017 · N584AS · Boeing 737890SDR HNAA2017103000361Indicator · malfunctionedON TAKEOFF, NR 2 ITT INDICATOR STUCK AT 1050. ALL OTHER ENGINE PARAMETERS AND INDICATIONS WERE NORMAL. POWERED AIRCRAFT DOWN AND REAPPLIED POWER. TESTED NR 2 ITT INDICATOR. OPERATED NORMAL. GROUND RAN THE AIRCRAFT. ALL INDICATIONS OPERATE NORMAL AT THIS TIOct 29, 2017 · N806EX · Dhav DHC8102SDR ASAA2017102122309Warning Message · false activationFOUND MAINTENANCE MESSAGE FOR THE NR 2 ENGINE. THE BOTTOM RIGHT EGT SIGNAL IS OUT OF RANGE . ECONOMIC FAULT. ACFT GROUNDED. PERFORMED ENG 2 EEC TEST IAW AMM 73-21-00-700-804-F00. TEST PASSED WITH NO FAULTS.Oct 21, 2017 · N585AS · Boeing 737890SDR ASAA2017101922279Fault Message · false indicationWHILE PERFORMING TC 78273000, FOUND FAULT CODE 73-31371 ON THE NR 1 ENGINE, UPPER EGT SECTORS READING HIGH. ECONOMIC FAULT. ACFT GROUNDED. PERFORMED TASK CARD 78273000. NO FAULTS INDICATED.Oct 19, 2017 · N519AS · Boeing 737890SDR ASAA2017101822258Fault Message · false activationWHILE ACCOMPLISHING T/C 78273000, FOUND THE NR 2 ENGINE FAULT 73-21372. FAULT MESSAGE UPPER EGT SECTORS READING HIGH. ECONOMIC FAULT. ACFT GROUNDED. PERFORMED BITE ON THE NR 2 ENGINE. NO FAULTS UNDER RECENT OR FAULT HISTORY.Oct 18, 2017 · N570AS · Boeing 737890SDR ASAA2017101522204Probe · dirtyWHILE ACCOMPLISHING TASK 78273000, FOUND A MESSAGE FOUR THE NR 1 ENGINE, 73-31371, UPPER EGT SECTORS READING HIGH. ACFT GROUNDED. TROUBLESHOOT IAW FIM 73-11, TASK 801. ACCOMPLISHED EGT CLEANING IAW AMM 77-21-00-140-801.Oct 15, 2017 · N519AS · Boeing 737890SDR ASAA2017100722159Sensor · dirtyGE DIAGNOSTICS REPORTED THE NR 2 ENGINE TREND DATA SHOWS A SUDDEN DELTA EGT INCREASE AND EGT HDM DECREASE. EGT INDICATION ERRORS ARE SUSPECT. ACFT GROUNDED. ACCOMPLISHED EGT CLEANING IAW AMM 77-21-00-140-801. BEFORE TEMPS: S1/44.39, S2/19.19, S3/18.56, S4/43Oct 7, 2017 · N530AS · Boeing 737890SDR ANCF2017102500001Electrical Box · failedDURING CLIMB, THE NR 1 ENGINE EGT INDICATION DISPLAYED, AMBER CROSSES WITH NO ECAM ALERT TRIGGERED. IAW TSM 77-20-00-810-826-A FOUND RESISTANCE VALUES OUT LIMITS IN THE MAIN JUCTION BOX IAW AMM 77-21-10-000/400-025-A. THE MAIN JUCTION BOX WAS REPLACED.Sep 30, 2017 · N821AV · Airbus A320214SDR ASAA2017092512022Fault Code · false activationWHILE PERFORMING TASK CARD 78273000, FOUND ECONOMIC FAULT 77-20861 (THE BOTTOM LEFT EGT SIGNAL (T495S3) IS OUT OF RANGE) ON #1 ENGINE. DEFERRED PER T/C 78273000. GROUNDED - YES. ACCOMPLISHED ENG 1 EEC BITE TEST, NO FAULTS LOGGED. ACCOMPLISHED ENG 1 T495 TEMPERSep 21, 2017 · N570AS · Boeing 737890SDR ASAA2017090721891Probe · faultedFOUND MESSAGE 77-20862 FOR THE NR 2 ENGINE BOTTOM LEFT EGT SIGNAL T495S3 IS OUT OF RANGE, ECONOMIC FAULT. ACFT GROUNDED. ACCOMPLISHED FIM 77-21, TASK 803. PERFORMED INPUT MONITORING OF THE T49.5 SYSTEM OF THE NR 2 ENGINE. FOUND FAULT CODE 77-20862 ON EVERYSep 7, 2017 · N557AS · Boeing 737890SDR ASAA2017090121806Probe · faultedDUE TO GE DIAGNOSTICS REPORTS #2 ENGINE TREND DATA SHOWS A SHIFT IN DELTA CRUISE AND TAKE-OFF MARGIN INDICATIVE OF EGT INDICATION ERRORS AND RO6 REPORT FOR EGT EXCEEDANCE. GROUNDED - YES. ENGINEERING REQUEST - ACCOMPLISHED CDU INTERROGATION FOUND #2 ENGINE FAUSep 1, 2017 · N592AS · Boeing 737890SDR ASAA2017083121772Fault Message · illuminatedWHILE ACCOMPLISHING TASK CARD 78273000, FOUND MAINTENANCE MESSAGE 73-31372 FOR UPPER EGT SECTORS READING HIGH, ECONOMIC FAULT NR 2 ENGINE. ACFT GROUNDED.Aug 31, 2017 · N585AS · Boeing 737890SDR ASAA2017082117678Warning Message · false activationPERFORMING T/C 78273000 FOUND #2 ENGINE MX MESSAGE 77-20872 TOP LEFT EGT SIGNAL OUT OF RANGE ECONOMIC FAULT. GROUNDED - YES. TROUBLESHOT PER B737-800 FIM 77-21. FOUND MESSAGE HAS BEEN CLEARED AT THIS TIME. NOT PRESENT IN CURRENT OR HISTORY. EEC TEST GOOD. AIRCAug 17, 2017 · N506AS · Boeing 737890SDR ASAA2017080521545Probe · no testNR 2 ENGINE MAX POWER ASSURANCE EGT INDICATION IS HIGH AT 65% N1. INDICATION ERROR IS SUSPECTED: S1 = 535, S2 = 558, S3 = 697, S4 = 545. ACFT GROUNDED. INITIAL EVAL UPON RETURN TO HANGAR: T495 = 126.91, S1-113.05, S2-88.53, S3-195.05, S4-109.14. ACCOMPLISHEAug 5, 2017 · N530AS · Boeing 737890SDR ASAA2017080121514Fault Code · false activationFOUND FAULT 73-31372 FOR UPPER EGT SECTORS READING TOO HIGH ON THE NR 2 ENGINE DURING ACCOMPLISHMENT OF T/C 78273000. ACFT GROUNDED. PERFORMED TASK CARD 7827300, NO EGT FAULTS NOTED. PERFORMED FIM 73-11, TASK 801. CLEANED EGT CONNECTORS IAW AMM 77-21-00. Aug 1, 2017 · N569AS · Boeing 737890SDR ASAA2017073021521Egt Indication · reads highAFTER TAKEOFF, AT 800 FT THE NR 2 ENGINE EGT REACHED 960 DEGREES FOR LESS THAN 5 SECONDS. ACFT GROUNDED.Jul 30, 2017 · N558AS · Boeing 737890SDR ASAA2017072221444Fault Code · activatedDURING INSPECTION, FOUND THE NR 2 ENGINE BOTTOM LEFT EGT SIGNAL (T495S3) IS OUT OF RANGE, ECONOMIC FAULT. ACFT GROUNDED. ACCOMPLISHED T/C 78273000. NO CURRENT FAULTS OR FAULTS IN HISTORY. T49.5 TEMPS ALL WITHIN LIMITS. ON GVI OF ENGINE CONNECTORS, FOUND J9 Jul 22, 2017 · N557AS · Boeing 737890SDR ASAA2017071021334Engine · fault messagePERFORMED TASK CARD 78273000 AND FOUND FAULT CODE 77-20861 ON NR 1 ENGINE. AIRCRAFT GROUNDED. CONFIRMED FAULT, NR 1 ENGINE EEC BITE TEST PER T/C 78273000 SHOWS LAST 11 FLIGHT FAULTS MESSAGE 77-20861. ACCOMPLISHED FIM 77-21 TASK 803. INPUT MONITORING PAGE SHOWJul 10, 2017 · N581AS · Boeing 737890SDR FDEA201707061870Warning Message · false activationLEFT ENGINE, HIGH EGT AND FUEL FLOW AT 10,000 FT WHEN CHANGING POWER FROM CLIMB 2 TO NORMAL CLIMB. RAN THE QRH, CONTINUED TO OPERATE ENGINE (LEFT) AT LOWER POWER AND RETURNED TO AIRPORT. INSPECTED NR 1 ENGINE INLET AND EXHAUST WITH NO DEFECTS NOTED IAW MMJul 6, 2017 · N979FD · Boeing 757236SDR ASAA2017070321267Probe · out of toleranceAFTER TAKEOFF, HAD AN EGT OVERTEMP ON THE NR 1 ENGINE. 954 DEGREES FOR LESS THAN 5 SECONDS. 27K BUMP POWER. DIAGNOSTICS REPORTED THE NR 1 ENGINE EXPERIENCED AN EGT EXCEEDANCE DURING TAKEOFF THAT MAY HAVE EXCEEDED THE TRANSIENT AREA LIMITS. PEAK EGT RECORDED Jul 3, 2017 · N468AS · Boeing 737990ERSDR ASAA2017062821224Warning Message · illuminatedFOUND NR 2 ENGINE ECONOMIC FAULT MESSAGE 73-31372. UPPER EGT SECTORS READING HIGH. ACFT GROUNDED.Jun 28, 2017 · N585AS · Boeing 737890SDR ASAA2017062021141Fault Light · illuminatedWHILE PERFORMING TASK CARD 78273000, NR 2 ENGINE BITE SHOWS FAULT 77-10852, ECONOMIC FAULT, BOTTOM RIGHT EGT SIGNAL T495S2 IS OUT OF RANGE. ACFT GROUNDED. PERFORMED INITIAL EVALUATION IAW FIM 77-21, TASK 802. NO ACTIVE FAULTS NOTED.Jun 20, 2017 · N506AS · Boeing 737890SDR ASAA2017062021140Probe · out of toleranceACCOMPLISHED T/C 78273000, FOUND ECONOMIC FAULT CODE 77-20871 THE TOP LEFT EGT OUT OF RANGE NR 1 ENGINE. ACFT GROUNDED. FOUND T49.5 S4 PROBE RESISTANCE VALUE OUT OF RANGE. REMOVED & REPLACED T49.5 S4 PROBE. OPS CHECK GOOD, REF B737-800 FIM 77-21 TASK 804, AMMJun 20, 2017 · N579AS · Boeing 737890SDR ASAA2017061621118Warning Light · false activationWHILE PERFORMING T/C 7827300, FOUND FAULT 77-108582, THE BOTTOM RIGHT EGT SIGNAL IS OUT OF RANGE. ECONOMIC FAULT. ACFT GROUNDED. NR 2 ENGINE BITE SHOWS NO CURRENT FAULTS, NO FAULTS IN HISTORY. TEMPS OUT OF RANGE. WIRING HARNESS RESISTANCE WITHIN LIMITS. CJun 16, 2017 · N596AS · Boeing 737890SDR CALA2017061601827Thermocouple · faultyNR 2 ENGINE OVER REDLINE, 5 SEC, JUST AFTER LIFTOFF. REDUCED THROTTLE AND TEMP CAME BACK TO NORMAL. EMERGENCY DECLARED. REPLACED THE T495S4 THERMOCOUPLE PROBE IAW AMM 77-21-01Jun 16, 2017 · N33262 · Boeing 737824SDR ASAA2017061121030Probe · out of limitsWHILE PERFORMING T/C 78273000 ON THE NR 2 ENGINE, FOUND ECONOMIC FAULT BOTTOM LEFT EGT SIGNAL (T495S3) IS OUT OF RANGE. MESSAGE 77-20862. ACFT GROUNDED. REMOVED AND REPLACED THE NR 2 ENGINE BOTTOM RIGHT T49.5 PROBE. PERFORMED T49.5 PROBE INSTALLATION TEST. TEJun 11, 2017 · N529AS · Boeing 737890SDR ASAA2017060921026Warning Message · false activationDURING ACCOMPLISHMENT OF T/C 78273000, NR 2 ENGINE PRODUCED FAULT MESSAGE 73-11372 FOR UPPER EGT SECTORS READING HIGH. ACFT GROUNDED. ACCOMPLISHED EEC BITE PROCEDURE IAW FIM 73-00, TASK 801. NO FAULTS LOGGED IN RECENT FAULTS. ACCOMPLISHED EEC TEST, TEST PAJun 9, 2017 · N570AS · Boeing 737890SDR ASAA2017060921025Warning Message · false activationNR 2 EEC LOGGED 73-21372, UPPER EGT SECTORS READING HIGH. ECONOMIC FAULT. ACFT GROUNDED. ACCOMPLISHED EEC BITE PROCEDURE, IAW FIM 73-00, TASK 801. NO FAULTS LOGGED IN RECENT FAULTS. ACCOMPLISHED EEC TEST, TEST PASSES WITH NO FAULTS, IAW AMM 73-21-00-700-80Jun 9, 2017 · N570AS · Boeing 737890SDR AALA20170531015Ecu · faultedDIVERTED TO A NR 2 ENGINE EGT OVERTEMP (EXCEEDANCE INDICATION). ENGINE WAS SHUT DOWN. EMERGENCY DECLARED, LANDED UNEVENTFULLY. MAINTENANCE ACCOMPLISHED FLIGHT RECORDER DATA RETRIEVAL AND PROCEDURE IAW WORK CARD 31-92-11. REPLACED ECU IAW MCM CARD 73-94-01. May 31, 2017 · N5007E · Airbus A319115SDR ASAA2017052320873Probe · out of limitsGE DIAGNOSTICS REPORTS NR 2 ENGINE TREND DATA SHOWS A SHIFT IN EGT HOT DAY MARGIN ALL OTHER PARAMETERS NORMAL. EGT INDICATION ERRORS ARE SUSPECT. ACFT GROUNDED. PERFORMED T/C 7873000 AND FOUND FAULT CODE 77-20862 IN THE FAULT HISTORY OF THE NR 2 ENGINE. ACCMay 23, 2017 · N529AS · Boeing 737890SDR ASAA2017052020907Connector · dirtyFOUND ECONOMIC RECENT FAULT 77-20862 ON THE NR 2 ENGINE, THE BOTTOM LEFT EGT SIGNAL (T495S3) IS OUT OF RANGE DURING EEC BITE TEST. ACFT GROUNDED. PERFORMED A NR 2 ENGINE EGT CONNECTOR CLEANING IAW AMM 77-21-00-140-801 AND CHECKED PIN AND SOCKET GRIP FOR NR 2 May 20, 2017 · N533AS · Boeing 737890SDR ASAA2017050720669Probe · failedDURING TC 78273000, FOUND NR 2 ENGINE FAULT CODE 77-1842. T495 S1 SHOWING BLANK. GROUNDED - YES. REMOVED AND REPLACED T49.5 PROBE S1, REF AMM 77-21-01. OPS NORMAL. READING SHOWING NORMAL.May 7, 2017 · N469AS · Boeing 737990ERSDR ASAA2017042521028Probe · faultedNR 2 ENGINE BITE SHOWS FAULT 77-10852 BOTTOM RIGHT EGT. ECONOMIC FAULT. ACFT GROUNDED, OUT OF RANGE IAW FIM 77-21 TASK 802, FAULT 77-10852 SHOWS ACTIVE. REMOVED AND INSTALLED A NEW S2 EGT PROBE IAW AMM 77-21-01. PERFORMED NR 2 ENGINE EEC TEST SYS CHECKED NORApr 25, 2017 · N506AS · Boeing 737890SDR AALA201704129012Probe · malfunctionedREJECTED TAKEOFF AT 60 KTS AT 164.2 K DUE TO ECAM. NR 2 ENGINE SENSOR FAULT, NR 2 ENGINE EGT SHOWED AMBER MESSAGE. MAINTENANCE INSPECTED ENGINE IAW AMM 05-51-16. REPLACED TWO PROBES IAW E58 9180563. ACCOMPLISHED SATISFACTORY OPERATIONAL CHECK IAW TSM 77-20-Apr 11, 2017 · N146AA · Airbus A321231SDR YENA201703110184Thermocouple · failedDURING LANDING, ECAM NR 2 ENG SENSOR FAULT. REMOVED AND REPLACED NR 2 ENG UPPER LEFT AND UPPER RIGHT EGT PROBES IAW AMM 77-21-15.Mar 11, 2017 · N646JB · Airbus A320232SDR YENA201703110183Probe · failedDURING LANDING, ECAM FOR NR 2 ENGINE SENSOR FAULT. REMOVED AND REPLACED THE NR 2 ENGINE EGT PROBES IAW AMM 77-21-15.Mar 11, 2017 · N646JB · Airbus A320232SDR HALA2017021300038Thermocouple · failedNR 1 ENGINE IS EXHIBITING A CRUISE TGT DECREASE IAW TSM 77-21-00-810-869-A. ACCOMPLISHED TROUBLESHOOTING IAW TSM 77-21-00-810-869-A. REMOVED AND REPLACED EGT THERMOCOUPLES IAW AMM 7-21-11. OPS CHECKED OK. OK FOR SERVICE.Feb 13, 2017 · N388HA · Airbus A330243SDR ASAA2017021219790Probe · failedNR 1 ENGINE EXCEEDING EGT LIMITS DURING TAKEOFF. ACARS DATA SHOWS PEAK EGT VALUE AT 953 DEGREES ACFT GROUNDED. PERFORMED NR 1 ENG EXCEEDANCE CHECK IAW AMM TASK 71-00-00-740-801-F00. NO EXCEEDANCE FAULTS LOGGED ON CURRENT NOR FLT HISTORY. PERFORMED STEP 2. FFeb 12, 2017 · N597AS · Boeing 737890SDR 9JLA2017030611001Indicator · failedTHE RIGHT ITT GAUGE WAS REPLACED WITH AN OVERHAULED UNIT. THIS INDICATOR FAILED 11 HRS AFTER INSTALLATION.Jan 23, 2017 · N345HC · Beech 400ASDR ASAA2017012219973Probe · out of limitsWHILE ACCOMPLISHING T/C 78273000 A FAULT CODE APPEARED ON THE NR 1 ENGINE 73-31371 UPPER EGT SECTORS READING HIGH, ECONOMIC FAULT. ACFT GROUNDED. PERFORMED FIM 73-11 TASK 801. PERFORMED AMM 77-21-01. INSPECTED AND FOUND S3 AND S4 EGT PROBES OUT OF LIMITS. REMJan 22, 2017 · N593AS · Boeing 737890SDR ASAA2016112019303Probe · failedWHILE ACCOMPLISHING TASK CARD 78273000 FOUND ECONOMIC FAULT 73-31371, UPPER EGT SECTORS READING HIGH ON NR 1 ENGINE. ACFT GROUNDED. REMOVED AND REPLACED T49.5 PROBE S1 IAW AMM 77-21-01-000-801 F00 AND 77-21-01-400-801-F00. ACCOMPLISHED EEC TEST IAW AMM 73-21-Nov 20, 2016 · N593AS · Boeing 737890
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