JASC 7520
Service difficulty reports · 329
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 ASAA2019033128838Valve · out of tolerance#2 ENGINE SHOWS FAULT CODE 75-10592- TBV POSITION SIGNAL IS OUT OF RANGE. LONG TIME FAULT REF T/C 78273000. GROUNDED - YES. REF B737-800 FIM 75-23 TASK 802. F/C 75-10592 ACTIVE. TBV DATA SHOWS DEMAND AT 100%. POSITION AT 6%. FADEC 3 S/W. PERFORMED GVI OF J9/J1SDR ASAA2019032928837Warning Light · false activationUPON LANDING ROLLOUT, THE RIGHT ENGINE CONTROL CAUTION LIGHT ILLUMINATED. GROUNDED - YES. ACCOMPLISHED EEC BITE #2 ENGINE LEG 1 FAULT 75-10582, REF B737-800 FIM 73-00 TASK 801, ACCOMPLISHED ACTUATORS TEST #2 ENGINE REF B737-800 AMM 71-00-00 ALL TESTS PASS, ACCSDR UIEA2019032203643Tube · chafedNR 1 ENG BLEED AIT TUBE LT SIDE 7 O'CLOCK POS CHAFED FROM CORE COWL (<P>REMOVED AND REPLACED NR 1 ENG BLEED AIR TUBE LT SIDE 7 O'CLOCK POSITION IAW AMM 72-24-03</P>)SDR UIEA2019032203620Tube · chafedNR 1 ENG BLEED AIR TUBE LH SIDE 7 O'CLOCK POS CHAFFED FORM CORE COWL.(<P>R/R NR 1 ENG BLEED AIR TUBE LT SIDE 7 O'CLOCK POSITION IAW AMM 75-24-03.</P>)SDR FDEA201903200694Elbow · damagedAT CRUISE 20 MIN INTO THE FLIGHT HYD 2 LEFT AND RIGHT PUMPS FAULTED WITH AN AMBER T ABOVE THEM. HYD 2 QTY WAS 7.7 BUT THE TEMP OF THE HYD FLUID STARTED CLIMBING AND WAS BOXED AMBER. MAX TEMP WAS 120C. WHEN CONFIGURING FOR LANDING HYD 2 SYS. SLOWY CAME BACK TO SDR P5CA2019030800036Uniball · looseFOUND NR 2 ENGINE LT LPT COOLING AIR DUCT SUPPORT LINK LOOSING 1 EACH AT 8 O'CLOCK (POS: A).(<P>REMOVED AND REPLACED SUPPORT LINK ROD END UNIBALL IAW AMM 70-50-00-912-001-H00 REV. 126. OPS CHECK GOOD. </P>)SDR E07A201912020007Precooler · crackedCRACKED LH PRECOOLER INLET DIVERTER WELDS FOUND DURING INSPECTION IAW SERVICE LETTER 505-36-0003. REPLACED WITH OVERHAULED UNIT.SDR ASAA2019021928235Manifold · damagedFOUND CHAFE DAMAGE ON OTBD DUCT MANIFOLD - AIR (P/N 340-027-603-0) AND CLAMP, HINGED (P/N 649-411-726-0) OF #2 ENGINE (T/R). GROUNDED - YES. ACCOMPLISHED ALTERNATE DEACTIVATION REF ALASKA CHPT. 5 MANUAL SECTION 5-07-01 TABLE 3 ITEMS 4,8,9 & 10. OPENED #2 ENGINSDR YV3R2019021100014Panel · crackedCUSTOMER REPORTED PANEL ASSEMBLY WAS CRACKED.SDR YV3R2019021100013Panel · crackedCUSTOMER REPORTED PANEL WAS CRACKED.SDR YV3R2019021100012Panel · crackedCUSTOMER REPORTED PANEL WAS CRACKED.SDR SWAA2019012128676Control Valve · leakingINFLIGHT SHUTDOWN/DECLARED EMERGENCY, FUEL LEAK NR 1 ENGINE VERIFIED BY QRH PROCEDURE 500LB IMBALANCE IN 24 MINUTES. PERFORMED NR 1 ENGINE SHUTDOWN. DECLARED EMERGENCY LANDING NORMAL. R&R E1 HIGH TURBINE PRESSURE ACTIVE CLEARANCE CONTROL PER AMM.SDR UIEA2018121102819Control Valve · faultyDURING DESCENT WITH ENGINE AT IDLE, ENGINE NR 1 N1 VERRIED BETWEEN 38 AND 48% WITH ASSOCIATED RISES IN N2 AND FUEL FLOW AND ENGINE 2 NORMAL. AUTO THROTTLES STAYED AT IDLE DURING THESE EPISODES, EVENT RECORDER PUSHED. PERFORMED PIME BITE, FOUND MESSAGE 354 28-ASDR AALA201811289001Control Valve · leakingWHITE SMOKE REPORTED BY TOWER. ENGINE INDICATIONS NORMAL, EXCEPT NR 1 ENGINE FUEL FLOW A BIT HIGHER AND FUEL CONSUMPTION 50 LBS PER MINUTE HIGHER THAN LEFT. DIVERTED. THE AIRCRAFT WAS GROUNDED. MAINTENANCE REMOVED AND REPLACED THE NR 1 ENG HPT ACC IAW AMM 7SDR K11A2018071372501Duct · crackedAFTER TAKEOFF WHEN CLIMBING THRU 1300 FEET NR 1 PYLON STRUT OVERHEAT LIGHT ILLUMINATED, PER AOM VOL 1 CHAP 4 REDUCED THRUST TO IDLE TO GET LIGHT TO EXTINGUISH. UNSCHEDULED LANDING.SDR CALA2018070301555Shutoff Valve · failedUPPER LEFT TURBINE VALVE AND BLADE COOLING AIR S/O VALVE REMOVED DUE TO FAILURE. LEFT ENGINE REPLACED (UPPER LEFT) TVBC AIR SHUTOFF VALVE OF LEFT ENGINE. REFRENCE AMM TASK 75-25-01-410-801-NR 2 ENGINE DUCT INSTALLATION NEEDS TO BE ACCOMPLISHED, TASK 36-11-01-4SDR DXTA2018032400758Precooler · failedBLEED 1 FAIL YELLOW CAS ILLUMINATED, CLIMBING THROUGH APPROXIMATELY 16,000 FT IN ICING CONDITIONS WITH WING AND ENGINE ANTI-ICE SWITCHES SELECTED ON. AFFECTED BLEED FAIL CONDITION DID NOT INITIALLY RESET. BLEED 2 FAIL YELLOW CAS MESSAGE ILLUMINATED CLIMBINGSDR SWAA2018020619545Control Valve · leakingDIVERT/INFLIGHT SHUTDOWN/DECLARED EMERGENCY, SUSPECT FUEL LEAK NR 1 ENGINE. COMPLY W/QRH. SHUTDOWN NR 1 ENGINE, WINDMILL FOR APPROX 30 MIN. R&R HIGH PRESSURE TURBINE ACTIVE CLEARANCE CONTROL VALVE PER AMM.SDR CALA2018012800367Valve · failedBEHIND ON FUEL PLAN. WET MOTOR ENG REF 71-00-00-700-822-F00 (LEAKING IN FLIGHT). FOUND RIGHT VSV DRAIN LEAKING UPON ARRIVAL AT HANGER, MOTOR NR 2 ENG AND FOUND FUEL LEAKING FROM HPTACC DRAIN. R&R HPTACC VALVE, REF AMM 75-21-01. ACP NR 2 ENG RUN AND ACTUATORS SDR ASAA2017110122374Manifold · chafedNR 1 ENGINE LPT ACC COOLING AIR MANIFOLD CHAFED. ACFT GROUNDED. REPAIRED IAW AMM 72-54-00-200-801-F00.SDR SWAA2017092516556Gasket · blownON CLIMB HAD ODOR FROM TAKEOFF TO 13000 THEN WE GOT THE NR 1 ENGINE OVERHEAT LIGHT ON FIRE PANEL WITH MASTER CAUTION. FOUND 9TH STAGE INLET TUBE GASKET BLOWN. R&R GASKET PER AMM.SDR TSAA20170725020Duct · damagedREPAIRED NR 2 ENGINE I/B C DUCT AT AFT TOP SIDEWALL OF BYPASS DUCT IAW DWG R27905.1 -078-002-001 REV A.SDR TSAA20170725019Duct · puncturedREPAIRED NR 2 ENG I/B C-DUCT PUNCTURE AT 9:00 POSITION ON INNER SURFACE 23" FROM FWD EDGE IAW REPAIR DWG NR R27905.1-078-003-001 REV NC.SDR JIKA2017071401Seal · wornDURING CLIMB OUT FROM KPDX REPORTED THAT THE LT“DUCT LEAK ANNUNCIATOR ILLUMINATED. THE CREW FOLLOWED THE QRH AND TURNED THE LT BLEED VALVE OFF AND THE LIGHT EXTINGUISHED. FOLLOWED THE QRH PROCEDURES AND TURNED THE LT BLEED BACK ON AND THE LIGHT RE-ILLUMINATED.SDR UIEA2017071201182Duct · dentedNR 1 POS HAS BLEED AIR DUCT UIN HOT SECTION 9 O'CLOCK WITH DENT. REMOVED FAN DISCHARGED AIR DUCT PER AMM 75-23-01 PART 2(C) 5,6. INSTALLED FAN DISCHARGED AIR PER AMM 75-23-01-404-007-H00 PART 3(D) 4 (B,E) AND 8 WITH T98583-1.SDR ASAA2017060120934Actuator · failedFOUND SHORT TERM FAULT CODE 75-20401 VSV POSITION SIGNALS DISAGREE ON THE NR 1 ENGINE. ACFT GROUNDED. NR 1 ENGINE EEC TEST COMPLETED IAW AMM 73-21-00-700-804-F00. NO FAULTS FOUND. FAULT HISTORY SHOWS HEAVY FAULT HISTORY. WIRES FROM CONNECTORS DP1010 & DP1SDR AALA20170208012Control Valve · faultyAIRCRAFT WAS GROUNDED. EMERGENCY DECLARED. FLL-DFW FLIGHT. ON TAXI, THE LEFT ENGINE WAS LEAKING FUEL. SHUTDOWN ENGINE AND SHUTOFF BOOST PUMPS. AIRCRAFT TOWED TO GATE. REMOVED AND REPLACED NR 1 HIGH PRESSURE TURBINE ACTIVE CLEARANCE CONTROL VALVE IAW AMM 75-21-SDR AALA20170118028Control Valve · faultyAIRCRAFT WAS GROUNDED. RIGHT ENGINE FUEL LEAK ON TAXI OUT AND A STRONG FUEL ODOR IN THE CABIN. REMOVED AND REPLACED THE HIGH PRESSURE TURBINE ACTIVE CLEARANCE CONTROL VALVE IAW AMM 75-21-01. LEAK AND OPERATIONAL CHECK GOOD.SDR AALA20161213027Gasket · blew outAIRCRAFT WAS GROUNDED. AIR INTERRUPT, DFW-MCO. EMERGENCY DECLARED. LANDING UNEVENTFUL. AIRCRAFT OVERWEIGHT. DURING CLIMB THE NR 2 ENGINE OVERHEAT ANNUNCIATOR ILLUMINATED ACCOMPANIED BY A MILD BURNING SMELL. MAINTENANCE FOUND THE NR 2 ENGINE STAGE NINE INLET TUSDR AALA20161213026Tube · looseAIRCRAFT WAS GROUNDED. AIR INTERRUPT, DFW-MCO. EMERGENCY DECLARED. LANDING UNEVENTFUL. AIRCRAFT OVERWEIGHT. DURING CLIMB THE NR 2 ENGINE OVERHEAT ANNUNCIATOR ILLUMINATED ACCOMPANIED BY A MILD BURNING SMELL. MAINTENANCE FOUND THE NR 2 ENGINE STAGE NINE INLET TUSDR GTIA2016120201683Line · looseNR 2 ENGINE AIR SYS FAULT ON DES, EMERGENCY DECLARED. C/W TSM 75-26-00-810-819-A FOUND LOOSE LINE AT AIR PRESSURE SENSOR. TIGHTEN LINE IAW 75-26-22. C/W ENG RUN IAW 71-00-00. OPS CK GOOD NO FAULTS NOTED AT THIS TIME.SDR ASAA2016102918509Duct · gougedNR 2 ENGINE CORE FIRE LOOP MW0326 BINDING WITH HPTACC DUCTING ON THE INBOARD SIDE. GOUGE PRESENT LOCATED ABOUT 12 INCHES AFT OF HPTACC VALVE. ACFT GROUNDED. REMOVED DAMAGED LPT DUCT FROM NR 2 ENGINE, IAW AMM 75-22-04-000-802-F00 STEPS 2.G.2.(A)-(D) & (3)(B)-(JSDR AALA201609089009Control Valve · leakingAIRCRAFT WAS GROUNDED, DURING TAXIOUT A TRAILING ACFT REPORTED FUEL LEAKING FROM NR 2 ENGINE COWL. MAINTENANCE LOOKED AT LEAK AND CONFIRMED SIGNIFICANT FUEL LEAK. MAINTENANCE R & R E2 HP TURBINE CLEARANCE CONTROL VALVE IAW AMM 75-21-10.SDR AALA20160619005Duct · burstAIRCRAFT WAS GROUNDED. EMERGENCY DECLARED. LANDING UNEVENTFUL. ACFT OVERWEIGHT. DURING CLIMB, CREW OBSERVED THE RT ENGINE OVERHEAT LIGHT ILLUMINATED. QRH FOLLOWED AND LIGHT EXTINGUISHED AT APPROXIMATELY 25 PERCENT N2. MAINTENANCE FOUND RT ENGINE HIGH PRESDR ASAA2016030815838Manifold · wornNR 1 ENGINE TURBINE COOLING DUCT-Y HAS AREA OF HEAVY WEAR, CHAFING FROM CONTACT WITH C-DUCT HEAT SHIELD. ACFT GROUNDED. REPLACED NR 1 ENGINE TURBINE COOLING Y-DUCT, REF CFM56-7, ESM 720000430-006C60.SDR CA151125004Hose · collapsed(CAN) FOUND DURING A SCHEDULED INSPECTION RIGHT BLEED AIR PRE-COOLER OVERHEATED AND RT ENGINE BLEED AIR SUPPLY HOSE INTERIOR WALL COLLAPSED.SDR SIMA20151016001Discharge Tube · failedOBSERVED 110 DEGREES ON ITT ON ENG 1, IN CLIMB MODE. E1 EXCEEDANCE MSG UPON LANDING. TRANSFERRED TO NRWC 640-DFW-02116. REF NRWC 640-DFW-02116. R & R NR 1 ENG, RT COMPRESSOR DISCHARGE TUBE ASSEMBLY IAW MM 75-00-00. OPERATIONS CHECKED GOOD IAW MM 72-00-00.SDR 9WGA20151016001Air Duct · blownPASSING 9500 FEET, NOTICED AMBER HYD ALERT NR 4 DU. LEVEL 3 ALERT FOR FIRE ENG NR 3 WENT OFF WITH FIRE BELL & ALL LIGHTS. THROTTLE NR 3 RETARDED, ALERT REMAINED PRESENT. SHUT OFF FUEL VLV, ALERT DISAPPEARED. DISCHARGED FIRE BOTTLE & DIVERTED FLIGHT. DISCOSDR CALA2015091800766Controller · failedFUEL CONFIRMED LEAKING AFTER TAKEOFF. CHECKLIST PROCEDURE & ENG SHUTDOWN PERFORMED. R & R HPTACC ON NR 1 ENG IAW MM TASK 75-21-01-000-801-F00, 75-21-01-400-801-F00, REF NR 4913120 PP TEST 3A 12.SDR SWAA2015082743274Control Valve · faultyINFLIGHT SHUTDOWN, DIVERSION. DECLARED EMER INFLIGHT, FUEL LEAK NR 1 ENG. NR 1 ENG SHUTDOWN. R & R NR 1 ENG HIGH PRESS TURBINE ACTIVE CLEARANCE CONTROL VLV IAW MM.SDR ANCF2015080801Controller · leakingENGINE 2 FUEL LEAK BY MAST DRAIN. IAW AMM TASK 75-21-10-000 400-002 THE HPTACC WAS R & R. IAW AMM TASK 71-00-00-710 -006 MINIMUM IDE CHECK FOR LEAKS OF RT ENG WAS ACCOMPLISHED, NO FOUND LEAKS. OPERATIONAL TEST OF FADEC WITH ENG MOTORING WAS ACCOMPLISHED SATSDR AALA20150317001Valve · faultyAIR INTERRUPT, RETURNED & EMER DECLARED. LANDING UNEVENTFUL & ACFT WAS OVERWEIGHT. DURING CLIMB CREW REPORTED LT ENG HAS HIGH EXHAUST GAS TEMP. ANNUNCIATOR EXTINGUISHED AFTER RETARDING THE THROTTLE. R & R LT ENG HI STAGE PNEUMATIC VLV & HP6 AIR OUTLET DUCTSDR UIEA2015031100177Valve · faultyLEFT ENG LOW PRESS TURBINE CASE COOLING VLV INOPERATIVE. R&R LT ENGINE LPTCCV IAW AMM 75-24-01, ALSO REPLACED LT EEC HARNESS DUE TO DAMAGE FOUND AT P115 CONNECTOR OF P11 HARNESS(YELLOW), PERFORMED TASK AMM 71-00-00 CONF 3 TEST 12 EEC ACTUATORS TEST. FOUND EESDR OZCA201502140014Clamp · looseRIGHT ENG OVER TEMPS AT CRUISE TORQUE SETTINGS. UPON INSPECTION OF RT ENG, FOUND HIGH PRESS BLEED TUBE CLAMP LOOSE. R & R CLAMP IAW MM. PERFORMED OPERATIONAL CHECKS AS REQUIRED. ALL OPERATIONAL CHECKS SATISFACTORY.SDR CALA2014121701525Valve · leakingREF LOG PAGE 7968275 FOR FUEL IMBALANCE EN ROUTE. FOUND HPTACC VLV LEAKING DURING DRY MOTOR ENG 2. R & R HPTACC VLV IAW MM 75-21-01-400-801-F00. LEAK CHECKED GOOD. ACFT OK TO CONTINUE. ROTABLE PARTS CHANGE WAS INDICATED TT 1532465 SN OFF 04528 VLV, ENG, SDR UIEA2014103100532Clamp · crackedNUMBER 1 ENG LT SIDE TURBINE CASE COOLING DUCT RETAINING STRAP CLAMP CRACKED JUST AFT OF STARTER DUCT. REPLACED NR 1 ENG LT SIDE TURBINE CASE COOLING DUCT RETAINING STRAP CLAMP IAW AMM 20-11-00.SDR UIEA2014103100544Cooling Duct · damagedNUMBER 1 ENG BORE COOLING TUBE ON LT SIDE OF FAN CASE LOCATED BELOW BORED COOLANT VLV HAS DAMAGE. R & R NR 1 ENG BORE COOLING TUBE AMM 75-21-01 & 70-50-00. BORE COOLING VLV TEST ACCOMPLISHED ON RUN UP TASK CARD 8007.SDR RJEF20141021001Valve · leakingDURING ENG START FOR FLIGHT, THE MECHANIC OBSERVED A FUEL LEAK ON ENG 2, DUE THAT REASON THE ACFT WAS RETURNED TO THE GATE & HELD ON GND FOR MX. THE CAUSE OF THE FUEL LEAK WAS IDENTIFIED AS THE HPTACC & THE TRANSIENT BLEED VLV. R & R THE HPTACC IN ACCORDANCESDR CHQA20140919274Discharge Tube · crackedCREW REPORTED THAT DURING FLIGHT THE ENG 2 ITT WAS SHOWING HIGH. RETURNED TO FIELD & LANDED WITHOUT INCIDENT. REPLACED THE COMPRESSOR AIR DISCHARGE TUBE ON THE ENG 2 RT SIDE. OPERATIONAL CHECKS WERE GOOD WITH NO FURTHER DEFECTS NOTED.SDR UIEA2014070100296Status Message · false activationRIGHT IDG VLV STATUS MSG, BPCU SHOWS NO FAULT DEFECT, ERASE MSG IAW FIM 24-20 FT 802.
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