JASC 7520
Service difficulty reports · 328
Reports filed under 7520 · Engine Cooling 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 = '7520' 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 = '7520' 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 ASAA2023030442827Valve · out of range75-10591 FAULT CODE FOUND UPON TASK CARD 78273000, TBV POSITION SIGNAL IS OUT OF RANGE, LONG TIME FAULT, ENGINE #1. GROUNDED - YES. REMOVED & INSTALLED LPTACC VALVE #1 ENGINE PER AMM 75-22-04-400-802-F00SDR ASAA2023022142028Gasket · dislodgedWHILE CHANGING THE #1 ENG 3 O'CLOCK STRUT WIRING HARNESS REF TSR713877 FOUND LPT DUCT GASKET DISLODGED FROM LPT MANIFOLD DOWNSTREAM OF LPTACC VALVE. GROUNDED - YES. REPLACED LPT DUCT GASKET PER B737-900 AMM SUBTASK 75-22-04-420-009-F00. LEAK CHECKED OKAY.SDR ASAA2023021642145Valve · faultyCFM REPORTS #2 ENGINE GRADUAL INCREASE IN DELTA EGT AND DELTA FUEL FLOW AND DECREASE IN DELTA CORE SPEED. GROUNDED - YES. REMOVED AND REPLACED HPTACC ACTUATOR ASSY PER B737-800 AMM 756-25-05.SDR SWAA2023021302189Valve · leakingFUEL LEAK #1 ENG<[01] ACCOMPLISHED TEST 12 ACTUATORS TEST PER M/M 71-00-00. NO LEAKS NOTED. ACCOMPLISHED TEST 3A IDLE POWER LEAK CHECK PER M/M 71-00-00. NO LEAKS NOTED. BAGGED ALL #1 ENGINE FUEL DRAIN TUBES AND ACCOMPLISHED TEST 3B PART POWER LEAK CHECK PER M/SDR ASAA2023020841913Valve · leakingDURING SHUTDOWN ON THE #1 ENGINE, FOUND FUEL LEAK UNDERNEATH FAN COWLING. GROUNDED - YES. PERFORMED ENGINE VENTS AND DRAINS INSPECTION PER B737-900 AMM TASK 71-71-00-200-801-F00 FOUND FUEL LEAKING FROM THE HPTACC VALVE DRAIN AT A RATE OF 40 DPM. FUEL STOPS DRISDR ASAA2023012341723Valve · leaking#2 ENG, FUEL DRIPPING FROM BOTTOM OF COWL. GROUNDED - YES. REMOVED AND REPLACED #2 ENGINE HPTACC VALVE. B737-900 AMM REF 75-21-01-400-801-F00.SDR ASAA2023011442088Valve · out of rangeENG 1 FAULT MSG 75-10591 FOUND. THE TBV POSITION SIGNAL IS OUT OF RANGE. LONG TIME FAULT. GROUNDED - YES. DEFERRED ON PLT FOR 450 FLT HRS PER T/C 78273000. REMOVED AND REPLACED #1 ENGINE TRANSIENT BLEED VALVE REF B737-800 AMM 75-23-01.SDR ASAA2022122841364Valve · faultedREF ASA TASK CARD 78273000 FOUND ENGINE #2 FAULT MESSAGE. ENGINE 2 SHORT TIME FAULT. FAULT CODE 75-30602. THE TBV POSITION SIGNALS DISAGREE. GROUNDED - YES. REMOVED & REPLACED #2 ENG TBV PER B737-900 AMM 75-23-01.SDR YV3R2023031400550Panel · crackedCUSTOMER REPORTED PANEL ASSEMBLIES P/N: A305-17 / A305-18 CRACKED.SDR ASAA2022120541062Valve · leakingDRIPS/LEAK NOTICED UNDER #2 ENGINE NACELLE. GROUNDED - YES. FOUND #2 HPTACC VALVE DRAIN LEAKING AT 10 DPM. REMOVED AND REPLACED HPTACC VALVE REF B737-900 AMM 75-21-01/401. LEAK AND OPS TEST GOOD. ORIG SUB DATE: 12/9/2022SDR ASAA2022111640945Valve · faultedREF T/C 05-020-01 FOUND SMT ENG 1 EEC C1 FAULT LOGGED. CORRELATED MSG CODE 73-42771 & 73-42772. GROUNDED - YES. REMOVED AND REPLACED MODULATED TURBINE COOLING VALVE PER B737-9 AMM 75-23-02. OPS CHECK GOOD. ALL FAULT MESSAGES CLEARED NO CURRENT ACTIVE FAULTS.SDR ASAA2022111140761Valve · leakingFOUND FUEL LEAK #1 ENG AFTER SHUTDOWN FROM HTPACC DRAIN MAST. GROUNDED - YES. REMOVED AND REPLACED #1 ENG HPTACC VALVE REF B737-900 AMM 75-21-01. OPS/LEAK CK GOOD.SDR ASAA2022110440670Valve · leakingSTATIC FUEL LEAK FROM #2 ENG HPTCCV DRAIN LINE, APPROX 10 DROPS PER MIN. GROUNDED - YES. PERFORMED IDLE ENG RUN. NO LEAK FOUND FROM HPTCCV DRAIN. OK FOR SERVICE. IAW AMM 71-71-00-200-801-F00, STEP 2.A(2). REMOVED AND REPLACED #2 ENG HPTACC VALVE REF AMM 75-21SDR ASAA2022102440492Valve · leaking#1 ENG HPTACC VALVE FOUND TO HAVE FUEL LEAK AFTER SHUT DOWN OF APPROX. 7 DPM. GROUNDED - YES. REMOVED AND REPLACED #1 ENGINE HPTACC VALVE REF B737-800 AMM 75-21-01. OPS CHECK GOOD AT THIS TIME WITH NO LEAKS DETECTED.SDR ASAA2022100740215Engine · leaking# 2 ENGINE DRIPPING FUEL. GROUNDED - YES. ON DEFERRAL.SDR AALA202209272510Duct · rupturedAIRCRAFT WAS GROUNDED: ON ETOPS WALKAROUND MAINTENANCE FOUND LOOSE PIECES OF HEAT PROOFING STICKING OUT OF THE #1 ENGINE THRUST REVERSER COWLING. UPON FURTHER INSPECTION FOUND THAT THE PNEUMATIC Y DUCT GOING TO THE HIGH PRESSURE TURBINE ACTIVE CLEARANCE CONTROSDR R61A2022100600619Pressure Valve · leakingSMOKE/FUMES IN CABIN. DECLARED EMERGENCY, LANDED WITHOUT INCIDENT. R&R PRV.SDR ASAA2022082039576Valve · leakingSTEADY STREAM OF FUEL COMING FROM DRAIN LINE FOR HPTACC VALVE ON #1 ENGINE. GROUNDED - YES. REMOVED AND REPLACED THE #1 HPTACC VALVE PER B737-900 AMM 75-21-01-000-801-F00 / 75-21-01-400-801-F00.SDR ASAA2022081639544Eec · faulted#1 ENGINE CONTROL LIGHT ILLUMINATED PRIOR TO TAKEOFF. GROUNDED - YES. PERFORMED EEC BITE TEST ON #1 ENGINE. FOUND FAULT 75-20581. ACCOMPLISHED B737-800 FIM TASK 75-23 TASK 801, AND GROUND RAN ENGINE. EEC CONTROL LIGHT REMAINED EXTINGUISHED. FAULT DID NOT RETURSDR I5PA2022080588801Eec · unserviceableLCC/EEC EPCS MSG. R/R L ENG LCC IAW AMM 75-24-01.SDR ASAA2022070438934Valve · faultyGE DIAGNOSTICS REPORTS #1 ENGINE (ESN 658291), TREND DATA SHOWS A GRADUAL INCREASE IN DELTA EGT, DELTA FUEL FLOW AND A DECREASE IN DELTA CORE SPEED. CNR 20220614003 ISSUED. GROUNDED - YES. REMOVED AND REPLACED #1 ENG HPTACC VALVE IAW B737-900 AMM 75-21-01. LEASDR ASAA2022061238624Valve · leakingDURING #2 ENG IDLE LEAK CHECK, HPTACC DRAIN LEAKING FUEL, APPROX 6 DROPS PER MIN. GROUNDED - YES. (RESOLVED ON W/O: 1912933 TASKCARD: N/R-00003 ) REMOVED AND REPLACED #2 ENG HPTACC VALVE IAW AMM 75-21-01. HPTACC VALVE INSTALLATION TEST PASSED. THIS CLEARS PLT SDR I5PA2022060692204Cooling Turbine · faultyR ENG HCC/EEC AND 351-26 MSG ON EPCS PAGE. R/R R ENG HIGH PRESSURE TURBINE COOLING VALVE PER AMM 75-24-03.SDR ASAA2022060238545Valve · leakingWHILE ACCOMPLISHING ASA T/C 3291186-6PNC #2 ENG HPTACC S/N GRTV4478 LEAKING. GROUNDED - YES. REMOVED & REPLACED #2 ENG HPTACC VALVE REF B737-900 AMM 75-21-01. LEAK & OPS CHECKED GOOD.SDR ASAA2022052438503Bleed Valve · failedWHILE PERFORMING ASA TC 78273000 FOUND FC 75-30602 THE TBV POSITION SIGNALS DISAGREE. ON LEGS 1 AND 5. ON #2 ENGINE. GROUNDED - YES. ACCOMPLISHED B737-800 FIM 25-23 802 & 803. FOUND TBV RESISTANCE BAD, PINS 2-3 87.1 OHMS PINS 4-5 31.4 OHMS PINS 5-6 31.3 OHMS OSDR ASAA2022051938440Valve · leakingA/C RESTRICTED FROM ETOPS SERVICE DUE TO #2 ENGINE HPTACC DRAIN LEAKAGE. GROUNDED - YES. TOP DEFERRAL CLEARED. HPTACC REPLACED PER B737-900 AMM 75-21-01 (ASA L/P 60492581). ETOPS SERVICE RESTORED.SDR ASAA2022051438326Bleed Valve · faulty#2 ENG SHORT TIME(MSG NBR: 75-30602)THE TBV POSITION SIGNALS DISAGREE. DEFERRED PER T/C 78273000. GROUNDED - YES. REMOVED AND REPLACED TRANSIENT BLEED VALVE PER B737-800 AMM TASK 75-23-01,LEAK CHK GOOD, OPS CHK GOOD.SDR ASAA2022051138330Valve · leakingFUEL DRIPPING FROM THE #2 ENGINE. GROUNDED - YES. REF B737-800 AMM 71-71-00-200-801-F00 PERORMED ENG VENT DRAINM INSP FOR #2 ENG. IDENTIFIED A FUEL LEAK FROM HPTACC AT 3 DROPS PER MINUTE. REMOVED AND REPLACED HPTACC VALVE ON #2 ENG IAW AMM 75-21-01. LEAK CHECKSDR ASAA2022042938183Unknown · faultySHORT TIME FAULT ENGINE NO. 2 75-10602, CHANNEL "A", "THE TBV POSITION SIGNALS DISAGREE." DEFERRED PER ASA TC 78273000. GROUNDED - YES. ACCOMP EEC BITE CHK ON #2 ENG FOUND FAULT 75-10602 ACTIVE ONLY ON LEG #4. FOUND FAULT 75-20602 ACTIVE ONLY ON LEG #10. REF OSDR ASAA2022040237880None · leakingLEAK DURING ENGINE START ON #1 ENGINE OF THE PILOT VERIFIED LEAK COMING FROM #1 ENGINE HPTACC VALVE DRAIN AFTER MAINTENANCE IDLE POWER LEAK REF B737-900 AMM 71-00-00-700-801-100. GROUNDED - YES. REMOVED AND REPLACED #1 ENG HPTACC REF B737-900 AMM 75-21-01OPS ASDR ASAA2022031237693None · faultyWHILE ACCOMPLISHING TEST 32 - ENGINE IDLE TEST, MM 71-00-00-700-808-G00, TEST FAILED. MAINTENANCE MESSAGES 73-42783 AND 73-42784, MODULATED TURBINE COOLING (MTC) VALVE 2 IS FAILED OPEN, CHANNEL A AND B. SMT MESSAGE ENG 2 EEC C2 ALSO APPEARED. TEST 32 ACCOMPLISSDR DALA2022031601727None · noneSHIP 6819 AWR: AD, A.A: LOOSE FASTENERS NBR:11,12,13,15,16,17 AND 18 OF RH DRAG FITTING. CORRECTIVE ACTION: SUMMARY OF NRC 00206:HOLES WERE REPAIRED PER ER/A 592314-14AD REV. A. SECTION V: PERMANENT REPAIR, PRI 592314-14 REV. 1 AND ETI-57-22-017 REV 1.AND NRC SDR AALA202203119991Control Valve · faultedAIRCRAFT WAS NOT GROUNDED: ENGINE 2 CONTROL VALVE FAULT INDICATED ON ECAM DURING TAKE-OFF ROLL AT APPROX. 78 KNOTS. INITIATED ABORTED TAKE OFF AT APPROX. 82 KNOTS. PER FAILURE MESSAGES PH09# 75-23-10 TBV VLV, HMU ENG2B SOURCE EIU2, FADEC 2B. PER TSM 75-26-00-8SDR YV3R2022030400521None · noneCUSTOMER REPORTED COVER ASSEMBLY (COOLING PANEL) P/N: D382-4 WAS CRACKED.SDR ASAA2022012737304Bleed Valve · faultyWHILE ACCOMPLISHING TASK CARD #78273000, #1 ENG HAS SHORT TIME FAULT 75-30601, TBV POSITION SIGNAL DISAGREE. GROUNDED - YES. REMOVED AND REPLACED #1 ENGINE TRANSIENT BLEED VALVE IAW B737-900 AMM 75-23-01-000-801-F00/400-801-F00. ACTUATORS TEST GOOD & IDLE POWESDR YV3R2022012100512None · noneCUSTOMER REPORTED PANEL ASSEMBLY P/N: A305-5 WAS CRACKED.SDR YV3R2022012100511None · noneCUSTOMER REPORTED PANEL ASSEMBLY P/N: A305-5 WAS CRACKED.SDR YV3R2022012100510None · noneCUSTOMER REPORTED PANEL ASSEMBLY P/N: A305-6 WAS CRACKED.SDR YV3R2022012100509None · noneCUSTOMER REPORTED PANEL ASSEMBLY P/N: A305-6 WAS CRACKED.SDR YV3R2022012100508None · noneCUSTOMER REPORTED COVER ASSEMBLY P/N: A312-6 WAS CRACKED.SDR ASAA2022011437174Valve · leakingUPON LL2 WALK AROUND FOUND FUEL PUDDLE ON #2 ENGINE AND ITS COMING FROM HPTCC DRAIN VALVE AND DRIPPING 16 DROPS PER MIN. GROUNDED - YES. RAN ENGINE #2 @ IDLE. LEAK @ 2 DROPS PER MIN. LEAK WITHIN LIMITS REF B737-900 AMM 71-71-00. MUST BE REPAIRED WITHIN 25 FC, SDR ASAA2021122036989Unknown · leaking#2 ENGINE SHORT TIME FAULT MESSAGE 75-20402 THE VSV POSITION SIGNALS DISAGREE. DEFERRED PER T/C 78273000SEA ONLY. GROUNDED - YES. PERFORMED B737-800 FIM 75-31 TASK 804 FOR BOTH A & B CHANNEL VSV POSITION SIGNALS DISAGREE. B CHANNEL ACTUATOR RESISTANCE VALUES ASDR ASAA2021122036988Unknown · worn#2 ENGINE SHORT TIME FAULT MESSAGE, 75-10402 THE VSV POSITION SIGNALS DISAGREE. DEFERRED PER T/C 78273000SEA ONLY. GROUNDED - YES. PERFORMED B737-800 FIM 75-31 TASK 804 FOR BOTH A & B CHANNEL VSV POSITION SIGNALS DISAGREE. A CHANNEL ACTUATOR RESISTANCE VALUES SDR I5PA2021091072202Engine · overtempLEFT ENGINE EGT RISING AFTER START AND IMPENDING OVERTEMP DURING TAKE OFF ROLL. LCC WAS REPLACED WITH NO FURTHER ISSUES.SDR I5PA2021081792201Computer · faultedLEFT ENGINE EGT RISING AFTER START AND IMPENDING OVERTEMP DURING TAKE OFF ROLL. HCC WAS REPLACED WITH NO FURTHER ISSUES.SDR HALA2021081000099Warning Message · false activationETOPS - ENG 1 TURB COOL FAULT // PER AIRBUS RECOMENDATION - ACCOMPLISH TSM 75-24-00-810-803-A, 7907. ACCOMPLISHED TSM 75-24-00-810-803 UP TO AND INCLUDING STEPS 4A(4). PERFORMED TSM 75-24-00-810-803-A STEPS 4A(6) THRU 4A(8)(B)3. NO DEFECTS NOTED, ALL WIRES RESDR ASAA2021080935766Valve · inoperativeGE DIAGNOSTICS REPORTS THE #2 ENGINE TREND DATA SHOWS A SUDDEN SHIFT IN DEGT, D CORE AND DFFHPTACCV IS MOST LIKELY CAUSE OF SHIFT. NO EXTENSION ALLOWED(#PRI: 2)ETOPS SIGNIFICANT SYSTEM. GROUNDED - YES. (RESOLVED ON W/O: 1882672 TASKCARD: N/R-00001 ) REMOVED ANSDR P5CA2021080900301Duct · brokenBROKEN - DUCT #2 ENG LPT COOLING MANIFOLD AT 7 O' CLOCK POSITION(<P>IAW AMM 75-24-03-004-050-H00 REV 132 AND AMM 75-24-03-404-037-H00 REV 132 REMOVED AND REPLACED LPT COOLING MANIFOLD AT #2 ENG WITH NEW PARTS. CONDITION CHECK SATISFACTORY</P>)SDR ASAA2021071135383Sensor · faultedFOUND ENG#2 SHORT TIME FAULT. MSG# 75-20802. "T25 SIGNALS DISAGREE" DEFER PER T/C 78273000. GROUNDED - YES. REMOVED AND REPLACED #2 ENG T25 SENSOR REF B737-900 AMM 73-21-02 OP CK GOOD FAULT NO LONGER PRESENT.SDR ASAA2021071135382Sensor · faultedFOUND ENG#2 SHORT TIME FAULT. MSG# 75-10802. "T25 SIGNALS DISAGREE" DEFER PER T/C 78273000. GROUNDED - YES. REMOVED AND REPLACED #2 ENG T25 SENSOR REF B737-900 AMM 73-21-02 OP CK GOOD FAULT NO LONGER PRESENT.
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