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 DL73K030177Duct · rupturedSHORTLY AFTER LIFT OFF, NR 2 ENGINE OVERHEAT LIGHT CAME ON ACCOMPANIED BY A BLEED TRIP LIGHT. OVERHEAT LIGHT EXTINGUISHED WHEN THRUST LEVERS RETARDED TO IDLE. FOUND SENSE LINE LEAKING AT PRBC AND COWL ANTI-ICE DUCT BLOWN. REPLACED SENSE LINE, COWL DUCT, ANDSDR DL76S030048Duct · crackedPILOT REPORTED NR 1 ENGINE HAD OVERHEAT LOOP 1 EICAS MSG AMD ALSO HAD OVERHEAT LOGHT ON PEDESTAL FLICKERING, CLOSED BLEED VALVE, LIGHT STILL FLICKERS, WENT OUT AFTER RETARDING THROTTLE. ON ENGINE INSPECTION FOUND TURBINE CASE COOLING DUCT CRACKED, REPLACED SDR C2XA02IA200Bypass Valve · inoperativeIAH- FLIGHT 2908 NR 1 BLEED OVERTEMP WHILE CLIMBING THROUGH FL200 WHEN ENTERING ICING CONDITIONS QRH COMPLETED. MAINTENANCE REMOVED AND REPLACED NR 1 FAN AIR BYPASS VALVE, PERFORMED A OPERATIONAL CHECK, NO DEFECTS NOTED, AND THE AIRCRAFT WAS APPROVED FOR RETSDR P5CA0200689Shroud · crackedCRACKS FOUND ON NR 1 ENG TURBINE COOLING SHROUD AT 8 & 2 O'CLOCK POSITIONS. RT (2 CRACKS) NR 1 IS 5 INCHES LONG & NR 2 IS 2 INCHES LONG. LT (4 CRACKS) NR 1 IS 3 INCHES LONG, NR 2 IS 5 INCHES LONG, NR 3 IS 1.5 INCH LONG & NR 4 IS 1.5 INCH LONG. ALSO BRACKET SDR Q2S2002F00002Duct · blownAIR TURNBACK, ON TAKEOFF, AT 2500 FEET MSL, WITH TAKEOFF POWER AT 113.0 N1, NR 2 ENGINE FIRE LIGHT AND BELL CAME ON. NACELLE INDICATOR BOTH A AND B READ 6.5 SHUTDOWN ENGINE IAW QRH. DUMPED 18,700 LBS OF FUEL. NO EVIDENCE OF FIRE FOUND ON INSPECTION OF ENGINSDR CNMA200100035Duct · blownENGINE FIRE INDICATION ON TAKEOFF CLIMBOUT 2 APPROX 400 FT AGL ON NR 3 ENGINE. COMMENCE ENG FIRE SEVERE DAMAGE CHECKLIST PERFORMED. FIRE INDICATION WENT OUT. DUMPED APPROX 29,000 LBS FUEL AND RETURNED TO LICZ. FOUND 14TH STAGE BLEED DUCT BLOWN.SDR DHL2001742014Duct · out of positionNR 2 DETECTOR CIRCUIT GROUND ILLUMINATES INTERMITTENTLY DURING FLIGHT. FOUND GEN COOLING DUCT SEALS TORN AND DUCT CONTACTING FIRE LOOP. REINSTALLED GEN COOLING DUCT AND REPLACED SEALS, OPS GOOD IAW MM 75-21-0 & 26-11-01.SDR DHL2001742013Duct · dislodgedNR 3 ENG GROUND FAULT LIGHT ILLUMINATED. FOUND GENERATOR COOLING DUCT DISLODGED AND RESTING ON FIRE LOOP. RESECURED COOLING DUCT, CLEANED AND RE SEATED FIRE LOOP C/P. OPS NORMAL IAW MM CH 26-11-0.SDR DHL2001363020Manifold · crackedON A-5 CHECK, NR 2 ENGINE LP TURBINE UPPER COOLING MANIFOLD CRACKED AT 10 O'CLOCK POSITION. REMOVED UPPER COOLING MANIFOLD NR 2 ENGINE ROUTED FOR REPAIR PER A-300 AMM 75-30-00. REINSTALLED SERVICEABLE UPPER COOLING MANIFOLD ON NR 2 ENGINE PER A-300 MM 75-30-SDR USAABA01007Cooler · failedPIT - DURING TROUBLESHOOTING OF A TCC (TURBINE CLEARANCE CONTROL) ACTUATOR FUEL LEAK, SIGNIFICANT DAMAGE TO THE INTERMEDIATE CASE HEAT SHIELDS AND THERMAL BLANKETS WAS NOTED FORWARD OF THE NR 3 BEARING BUFFER AIR COOLER. A MASSIVE AIR LEAK WAS DISCOVERED EMANSDR CA010307014Bolt · sheared(CAN) DURING ROUTINE CHECK FOUND NR 1 ENGINE RT C DUCT AFT FORWARD BOLT SHEARED. AIRCRAFT WAS FERRIED ON A FERRY FLIGHT PERMIT WITH BOEING SUPPORT AND BOLT REPLACED. AIRCRAFT RETURNED TO SERVICE.SDR GLBA2001010Bypass Valve · inoperativeRETURN TO BLOCK, RIGHT BLEEDAIR FAIL. REMOVED AND REPLACED TEMP CONTROL SENSOR AND PRECOOLER BYPASS VALVE, SYSTEM OPS CHECKED GOOD.SDR 20000424AP006Cooler · crackedMIA - FLT TA807 - DURING CRUISE, THE NR 2 ENGINE HIGH TEMPERATURE LIGHT CAME ON AND PACK NR 2 AUTOMATICALLY CLOSE. WHEN CROSS BLEED VALVE WAS OPENED NR 1 BLEED AIR TEMPERATURE STARTED TO RISE. BOTH ENGINES BLEED WERE CLOSED AND THE AIRCRAFT RETURNED TO MIAMISDR USAABB99051Precooler · failedPHL - FLT 126 - APPROXIMATELY FORTY MINUTES OUT OF PHL, THE CREW RECEIVED THE E/M 'L BLD OVHT'. CREW CLOSED THE LEFT BLEED AND SECURED THE LEFT PACK. FLIGHT RETURNED TO PHL AND LANDED WITH NO FURTHER INCIDENT. MAINTENANCE REPLACED THE LEFT ENGINE PRECOOLER.SDR 2000ZZZX687Pipe · chafedFOUND DURING C-CHECK. NR 3 PYLON VENTILATION PIPE CHAFED. FABRICATED DOUBLERS AND WELDED IN PLACE IAW BOEING MESSAGE M-7200-99-07969 WITH APPROVED 8110-3 DATED 10-22-99. REF: ZANTOP INTERNATIONAL AIRLINES, INC., ZIAA. (X)SDR USAABB99034Duct · leakingSFO - FLT 76 - ON CLIMB-OUT FROM SFO, CREW RECEIVED LEFT ENGINE OVERHEAT WARNING. CREW PERFORMED PROCEDURES AND THE WARNINGS PERSISTED. THE ENGINE WAS SECURED. FLIGHT RETURNED TO SFO AND LANDED WITH NO FURTHER INCIDENT. (SET 0:20). MAINTENANCE REPLACED THSDR 99ZZZX282Bottle · meltedDURING ROUTINE MAINTENANCE, NOTED THE RADIATOR WATER LEVEL WAS EMPTY. ON INSPECTION, THE OVERFLOW WAS FOUND MELTED AT THE LOWER, INBOARD, FORWARD CORNER. SEVERAL OTHER AIRCRAFT HAVE BEEN INSPECTED AND ALL ARE DEVELOPING THE SAME PROBLEM. REPLACEMENT AND MODSDR 98ZZZX3683Line · crackedCRACKED COOLANT LINE CAUSED LOSS OF COOLANT AND ENGINE SHUT DOWN. LOG BOOKS NOT AVAILABLE AT TIME OF THIS REPORT.SDR CA980908016Coolant · empty(CAN) PILOT REPORTED ELECTRICAL AND OIL SMELL IN THE COCKPIT AFTER TAKEOFF, WITH THE ENGINE STARTING TO RUN ROUGH. PRECAUTIONARY LANDING CARRIED OUT. POST-FLIGHT INSPECTION REVEALED NO COOLING IN THE ENGINE. THE OVERFLOW VESSEL FULL AND THE TEMPERATURE TRANSSDR CA980507007Cooling Hose · cracked(CAN) INSPECTION FOUND LEAK FROM CRACKED HOSE WHICH SUPPLIES COOLANT TO NR 1 AND NR 2 CYLINDERS. HOSE CRACK WAS UNDER A CLAMP. THE LINE/HOSE WAS REPLACED.SDR 97FDEA00375Duct · rupturedNR 1 ENGINE TURBINE CASE COOLING DUCT RUPTURED. CAUSING HEAT DAMAGE TO COMPONENTS AND ELECTRICAL WIRING FOR THE FOLLOWING SYSTEMS. HYDRAULIC, ENGINE OIL TEMP AND PNEUMATIC. NO ASSOCIATED FIRE WARNINGS OR ALERTS. *S/D* REMOVED AND REPLACED THE NR 1 ENGINE.SDR ABXA9701153Control Valve · defectiveON TAKEOFF ROLL FROM LAX, HAD ZNS FAULT ON NR 1 GENERATOR BUS. ABNORMAL PROCEDURES ACCOMPLISHED. BUS POWER RESTORED FOR APPROXIMATELY 5 MINUTES THEN ZNS FAULT OCCURRED AGAIN. BUS SECURING PROCEDURES ACCOMPLISHED. REPLACED JET BLOW AWAY CONTROL VALVE IAW DCSDR DHL9780151CAngle · crackedAT C-CHECK, COOLING SHROUD VENT BOX ON NR 2 ENGINE IS CRACKED. INSTALLED REPAIR ANGLE ON TOP SHROUD PER SRM 51-1-1.SDR CA970425006Cooling Hose · chafed(CAN) CHAFING OF COOLANT LINE GREATER THAN 50 PERCENT OF WALL THICKNESS. NR 1 EXHAUST SPRING SOURCE OF CHAFING.SDR CALA9700129Manifold · crackedTHE NR 1 START LEVER LIGHT AND MASTER WARNING LIGHT ILLUMINATED DURING TAKEOFF ROLL. TAKEOFF WAS ABORTED AT 25 TO 30 KNOTS AND THE AIRCRAFT WAS RETURNED TO GATE. MAINTENANCE FOUND THE NR 1 ENGINE LOW PRESSURE TURBINE COOLING AIR MANIFOLD CRACKED. THE MANIFOSDR 9626046739Tcc Duct · blownDURING CLIMB, THE NR 1 ENGINE FIRE WARNING LIGHT ILLUMINATED. CREW SHUT DOWN THE NR 1 ENGINE AND DISCHARGED THE FIRE BOTTLE. AIRCRAFT RETURNED TO NRT AND LANDED WITHOUT INCIDENT. FOUND THE TURBINE CASE COOLING DUCT BLOWN. REPLACED THE NR 1 ENGINE, OPEATIONSDR P5CA9600870Cooling Shroud · brokenCOOLING SHROUD BROKEN ON NR 2 ENGINE GENERATOR. REPLACED NR 2 ENGINE GENERATOR COOLING SHROUD PER BAC MM 75-21-02.SDR CA961112003Fan Wheel · misalignment(CAN) WITNESS MARKS MISALIGNED ON COOLING FAN.SDR COMA9630117Heat Exchanger · dirtySMOKE SEEN COMING FROM LEFT ENGINE WHEN HIGH PRESSURE BLEED AIR IN USE. SMOKE CAUSED BY A DIRTY HEAT EXCHANGER. CLEANED THE HP BLEED HEAT EXCHANGER AND ACFT RETURNED TO SERVICE.
Back to JASC 7520