JASC 7320

Service difficulty reports · 4,393

Reports filed under 7320 · Fuel Controlling 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 = '7320'
  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 PNSA981102Fuel Control · out of adjustLEFT ENGINE DID NOT REACH TARGET TORQUE, ABORTED TAKE-OFF. ADJUSTED MAX POWER FUEL FLOW SUBSEQUENT OPS CHECK OF TORQUE OK, AIRCRAFT RETURNED TO SERVICE.Nov 28, 1998 · N41NE · Swrngn SA227ACSDR MASA98212Eec · malfunctionedFLT 6310 - PHX-GUC - CLIMBING THROUGH 18,000 FT, THE LEFT ENGINE BEGAN TO RUN ROUGH. THE CREW DECLARED AN EMERGENCY AND DIVERTED TO GUP, WERE NOTED. THE EEC WAS REMOVED AND REPLACED AS A PRECAUTIONARY MEASURE. AIRCRAFT WAS RETURNED TO SERVICE. (M)Nov 28, 1998 · N448YV · Dhav DHC8202SDR DHL98717003P & D Valve · failedAFTER TAKEOFF FROM MIA AT CLIMB, THRUST SETTING THE CREW NOTICED A VIBRATION AND NR 1 ENGINE EPR WAS FLUCTUATING BETWEEN 1.75 AND 1.5 FUEL FLOW AND N2 FLUCTUATING. WHEN THRUST REDUCED THE VIBRATION WAS MINIMAL. FLIGHT RETURNED TO MIA. REMOVED AND REPLACED Nov 17, 1998 · N717DH · Boeing 72723SDR RAIA981114Valve · failedFLT 7096 - STL - ON CLIMB-OUT, RIGHT TORQUE DROPPED TO 60 PERCENT WITH AN EGT RISE. MAINTENANCE REPLACED RIGHT ENGINE FUEL BYPASS VALVE. (M)Nov 16, 1998 · N433AM · Bag JETSTM3201SDR VTZA98338P3 Line · failedFLT 6330 - IAD-PIT - DURING CLIMB, AIRCRAFT MADE AN UNSCHEDULED LANDING DUE TO LEFT BETA WARNING LIGHT ILLUMINATED. AIRCRAFT LANDED AND RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND REMOVED AND REPLACED ENGINE AND INSPECTED BETA SWITCHNov 14, 1998 · N478UE · Bag JETSTM3201SDR 99ZZZX1267Solenoid · failedSOLENOID WILL NOT ACTUATE. REMOVED AND REPLACED.Nov 11, 1998 · N4UV · Bell 230SDR COMA9860339Connector · dirtyUNCOMMANDED ACCELERATION RIGHT HAND ENGINE DURING CRUISE FLIGHT. CLEANED WIRING CONNECTOR AT ENGINE ECU.Nov 6, 1998 · N991CA · Cndair CL6002B19SDR HEEA0016679Actuator · failedACTUATOR WILL NOT ACTUATE.Nov 5, 1998 · N721MB · Bolkms BO105SSDR C2XA98BT082Eci · failedTEST FLIGHT NR 2 ENGINE, ECU PROBLEM. NR 2 ENGINE SHUTDOWN ON APPROACH. REMOVED AND REPLACED NR 2 ECU AND NH SENSOR. TEST FLOWN SATISFACTORY. (M)Nov 3, 1998 · N97841 · Aerosp ATR42320SDR CA981113018Hmu · faulty(CAN) AT 15,700 FEET, NR 2 ENGINE CAUSED A VIBRATION IN THE AIRCRAFT. THE ENGINE AUTO SHUTDOWN. HIGH EXHAUST TEMPERATURE WAS THE ONLY PARAMETER NOTED. THE ENGINE WAS REPLACED.Oct 30, 1998SDR 98ZZZX4359Line · chafedPILOT NOTED LEFT OIL PRESSURE DROPPING IN-FLIGHT AND THAT IT WOULD FOLLOW THROTTLE MOVEMENT. PILOT SHUT LEFT ENGINE DOWN AND LANDED 15 MINUTES LATER NORMALLY. INVESTIGATION REVEALED NR 6 BEARING PRESSURE OIL LINE CHAFED THROUGH FROM CONTACT WITH CESSNA BLEEDOct 27, 1998 · N39WP · Cessna 650SDR HEEA0016330Torque Shaft · damagedTORQUE SHAFT'S BALL HAS GROOVE AND HANGS UP ON GROOVE, ALSO ROUGH IN MOVEMENT.Oct 22, 1998 · N3122H · Skrsky S76ASDR RRXA98446Mec · out of adjustNR 2 ENG SLOW TO ACCELERATE TO IDLE DURING START, SLOW TO CUTBACK. FUEL FLOW AND EGT HIGHER THAN 1, 3 & 4. AFTER V1 EGT WENT TO 905 DEG, 908 MOMENTARLEY, REDUCED N1 BY 2 PERCENT TO MAINTAIN EGT BELOW LIMITS. ACCOMPLISHED IN FLT SHUTDOWN AND RETURNED TO MMMXOct 21, 1998 · N8076U · Doug DC871FSDR 98ZZZX4039Computer · failedINTERNAL BOND FAILURE OF INTEL UVAROM DATE CODE 9324 AT 10000 AND FLIGHT HOURS (4 EVENT SAMPLE) LEADS TO A LOSS OF A CONTROL CHANNEL IN DUAL CHANNEL CONTROL UNIT. SUBMITTER SUSPECTED BATCH PROBLEM WITH TIME RELATED FAILURE MODE. 800 DEVICES OF SUSPECT DATE COct 21, 1998 · Boeing 747*SDR RAIA981009P3 Gasket · failedFLT 7395 - MWA - LEFT ENGINE TORQUE DROPPED TO 95 PERCENT ON TAKEOFF, TARGET WAS 100 PERCENT. MAINTENANCE REPLACED P-3 GASKET ON LEFT ENGINE. (M)Oct 15, 1998 · N423AM · Bag JETSTM3201SDR SABA980054Valve · failedRDU - FLT 9142 - NTS TEST FLIGHT UNSUCCESSFUL COULD NOT RELIGHT NR 2 ENGINE. REMOVED AND REPLACED RT FUEL SHUTOFF VALVE IAW GARRETT MM ATA 73-00. GROUND RUNS OPS CHECKED GOOD. LEAK CHECKED GOOD. (M)Oct 10, 1998 · N941AE · Bag JETSTM3201SDR AU981313Pipe · loose(AUS) LEFT ENGINE PY LINE LOCATED BETWEEN THE FUEL CONTROL UNIT AND THE OVERSPEED GOVERNOR HAD A LOOSE CONNECTION.Oct 7, 1998SDR DLL13982072Ff Regulator · out of adjustNR 2 ENG LOW POWER ON TAKEOFF ROLL .491 EPR WITH LEVER FULL FORWARD TURNED NR 2 PACK OFF WITH NO INCREASE IN POWER. ABORTED AT 80 KTS, ODM BRAKE TIME VERIFIED. ADJUSTED NR 2 FFR, RAN ENG PER PFHB TETS 13, OPS CK OK.Oct 6, 1998 · N790DL · Lkheed 10113851SDR 98ZZZX4206P3 Line · brokePILOTS DISCREPANCY WAS NR 1 ENGINE TEMPORARILY LIMITED ABOVE CRUISE DETENT. REMOVED THE OUTBOARD INNER BYPASS ACCESS TO CHECK BLEED VALVES. UPON INVESTIGATION, FOUND THE BLEED AIR (P3 LINE) BROKEN AT B-NUT, P/N 3081695. IT APPEARED THE FIT OF THE LINE HAD COct 6, 1998 · N530QS · Braero BAE1251000SDR VNAA9809021Sensor · failedDURING THE TAXI FOR TAKEOFF, THE CREW NOTED A LEFT ENGINE ELECTRONIC CONTROL UNIT (ECU) FAIL WARNING MESSAGE. THE AIRCRAFT RETURNED TO THE GATE. PSA MAINTENANCE WAS DISPATCHED FROM PIT WITH PARTS TO REPAIR THE AIRCRAFT. MAINTENANCE INSPECTED AND REPLACED THSep 25, 1998 · N457PS · Dorner DO328100SDR CALA9801858Line · leakingTHE NR 1 ENGINE THROTTLE WAS TWO KNOBS AHEAD OF NR 2 WITH CLIMB POWER SET OUT OF MSP. THE SPLIT INCREASED TO ABOUT 3 KNOBS DIFFERENCE AS CLIMB PROGRESSED. FUEL FLOW WAS ABOUT 2000 LBS HIGHER ON NR 1 FOR SAME ENGINE PARAMETERS AT ABOUT 31,000 FT. THE NR 1 ENSep 25, 1998 · N14233 · Boeing 737217SDR DHL98803002Fuel Control · out of adjustCLIMBED FROM FL 290 TO FL 370, AFTER LEVELING OFF NR 4 ENGINE FLAMED OUT. DESCENDED TO 290 AND PERFORMED INFLIGHT RESTART. PERFORMED INSPECTION PER CFM MM 71-00-00 FAULT NR 51. FOUND SPECIFIC GRAVITY OFF INDEX MARK. RESET TO PROPER INDEX .87 PER MM 73-21-Sep 24, 1998 · N803DH · Doug DC873FSDR CA980928031Sensor · faulty(CAN) DURING DESCENT, THE POWER WAS INCREASED TO MAINTAIN AIRSPEED TARGET. NR 1 ENGINE PARAMETERS DID NOT CHANGE, BUT REMAINED INDICATING LOWER THAN NORMAL IDLE. PRECAUTIONARY ENGINE SHUTDOWN CARRIED OUT. POST-FLIGHT, THE N1 HYDROMECHANICAL SENSOR WAS CHANGSep 19, 1998SDR RAIA980909Bypass Valve · failedFLT 7397 - STL - LEFT ENGINE TORQUE DROPPED TO 40 PERCENT ON TAKEOFF ROLL. MAINTENANCE REPLACED LEFT FUEL BYPASS VALVE. (M)Sep 17, 1998 · N422AM · Bag JETSTM3201SDR DL72S981899P & D Valve · failedNR 3 ENG FAILED INITIALLY FELT SLIGHT SWERVE AND EPR DROPPED WHEN THE THROTTLE WAS ADVANCED. THE ENG CONTINUED TO SPOOL DOWN TO WINDMILLING. REPLACED P/D VALVE.Sep 13, 1998 · N400DA · Boeing 727232SDR VNAA9809010Sensor · failedDURING THE TAXI FOR TAKEOFF, AN ECU FAIL WARNING MESSAGE ILLUMINATED. THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE INSPECTED AND REPLACED THE LEFT HAND ENGINE 1.8 SENSOR, IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 73-21-02. OPERATIONAL CHECKS WERE COMPSep 11, 1998 · N457PS · Dorner DO328100SDR HEEA0015934Servomotor · failedSERVO MOTOR WILL NOT ACTUATE UP OR DOWN, BRAKE STICKING.Aug 28, 1998 · N967MB · Bolkms BO105SSDR HEEA0015933Servomotor · failedSERVO MOTOR WILL NOT ACTUATE, FILTER SHORTED TO GROUND.Aug 28, 1998 · N4573B · Bolkms BO105SSDR HEEA0015900Hmu · failedHMU WOULD NOT GO TO IDLE.Aug 28, 1998 · N408PH · Bell 407SDR HEEA0015891Actuator · failedACTUATOR WILL NOT RETRACT.Aug 27, 1998 · N31821 · Bell 206L3SDR HEEA0015766Fuel Control · damagedFUEL CONTROL ASSEMBLY HAS FLAT SPOTS NEAR CUT OFF.Aug 26, 1998 · N8045T · Bell 214STSDR VTZA98266Fcu · malfunctionedFLT 6632 - ILM-IAD - DURING CRUISE, AIRCRAFT DIVERTED AND MADE AN UNSCHEDULED LANDING AT RIC, DUE TO RT ENGINE LOSS OF POWER SLOWLY. AIRCRAFT LANDED AND WENT TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND REMOVED AND REPLACED RT ENGINE FCU AND FAug 22, 1998 · N321UE · Jetair JETSTM4101SDR CA990203012Ecu · failed(CAN) NR 2 ENGINE FLAMED OUT AT 70 KNOTS ON TAKEOFF. TAKEOFF REJECTED. POWER LOSS AND TURBINE TEMPERATURE IN EXCESS OF 1000 DEGREES CELSIUS. TROUBLESHOOTING FOUND INTERMITTENT FAULT CONFUSED FULL DIGITAL CONTROL; CHANNEL A VARIABLE STATOR VANE FEED BACK ACTAug 21, 1998 · Airbus A340313SDR HEEA0015671Fadec Horn · weakFADEC FAIL HORN AUDIO EXTREMELY WEAK.Aug 19, 1998 · N467PH · Bell 407SDR 98ZZZX3704T1 Canister · crackedDURING A ROUTINE INSPECTION, A CRACK WAS FOUND AT THE BASE OF THE CAPILLARY TUBE MOUNT BOSS ON THE T1 CANISTER OF THE LEFT HAND ENGINE. THE CRACKED PART WAS REMOVED AND A SERVICEABLE UNIT WAS INSTALLED IAW ROLLS ROYCE MAINTENANCE MANUAL, CHAPTER 75. THERE HAAug 19, 1998 · N220JR · Gulstm G1159SDR HEEA0015589Fuel Control · wornFUEL CONTROL WORN.Aug 14, 1998 · N8045T · Bell 214STSDR VTZA98256Line · brokenFLT 6299 - IAD-ABE - DURING CRUISE, MADE AN UNSCHEDULED LANDING DUE TO LEFT ENGINE BETA LIGHT ILLUMINATED AND OIL PSI DROPPED TO 70 PSI. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND REMOVED AND REPLACED LEFT ENGINE P-3 LINE AAug 10, 1998 · N472UE · Bag JETSTM3201SDR 98ZZZM789Valve · failedAIRCRAFT ABORTED TAKEOFF DUE TO LEFT ENGINE TORQUE FLUCTUATION. THE SYSTEM WAS INSPECTED AND THE BYPASS VALVE WAS FOUND TO BE AT FAULT. THE VALVE WAS REPLACED AND A FUNCTIONAL CHECK OF THE SYSTEM PERFORMED WITH ALL INDICATIONS NORMAL. (M)Aug 6, 1998 · N844JS · Bag JETSTM3101SDR PNSA980801AHmu · malfunctionedDURING CLIMB, LT ENGINE ITT BEGAN TO FLUXUATE. CREW WAS UNABLE TO CONTROL FLUXUATION. ENGINE WAS SECURED AND AIRCRAFT RETURNED TO AIRPORT FOR AN UNEVENTFUL LANDING. REPLACED FUEL CONTROL (HMU) OPERATIONAL CHECK OK.Aug 3, 1998 · N685PA · Saab 340BSDR UPS98427265Connector Pin · bentINSPECTION TYPE-N/A, CREW REPORTED AT 500 FT AGL ON FINAL APPROACH, NR 1 ENGINE FLAMED OUT. NORMAL LANDING ACCOMPLISHED. INFLIGHT START NOT INITIATED DUE TO DISTANCE FROM RUNWAY. FOUND PIN 6 ON NR 1 ENG FIREWALL CONN D0014P BENT AND TOUCHING PIN 17 CAUSING Aug 2, 1998 · N681UP · Boeing 747121SDR 99ZZZX681Fuel Control · malfunctionedWHILE IN CRUISE FLIGHT, NR 1 ENGINE TORQUE WENT LOW WHICH RESULTED IN A 20 PERCENT TORQUE SPLIT BETWEEN NR 1 AND NR 2 ENGINES. PILOT RETURNED TO BASE AND LANDED WITHOUT INCIDENT. TROUBLESHOOTING BY MAINTENANCE REVEALED DEFECTIVE FUEL CONTROL. REPLACED SAME.Jul 30, 1998 · N1079U · Bell 212SDR SCNA98084Power Stop · not stowedDURING TAKEOFF ROLL FOLLOWING A MAINTENANCE CHECK, THE AIRCRAFT WOULD NOT REACH TAKEOFF POWER ON THE NUMBER THREE ENGINE. FOUND THE PART POWER STOP IN THE PART POWER STOP POSITION. STOWED AND SAFETIED THE PART POWER STOP. ENGINE OPERATIONALLY CHECKS NORMAL.Jul 29, 1998 · N289SC · Boeing 727259SDR HEEA0015324Servo Motor · inoperativeSERVOMOTOR INTERMITTENTLY INOPERATIVE.Jul 29, 1998 · N4302G · Bolkms BO105SSDR HEEA0015269Servo Motor · failedACTUATOR WOULD NOT BEEP. FOUND WIRE WORN THROUGH AT BODY.Jul 27, 1998 · N7170D · Bolkms BO105SSDR HEEA0015240Servo Motor · malfunctionedNR STARTED TO DROOP AFTER TAKEOFF AND WOULD NOT BEEP UP.Jul 27, 1998 · N7170D · Bolkms BO105SSDR C2XA98CL056Hmu · malfunctionedCLE - FLT 3206 - CREW REPORTED THE RIGHT ENGINE NP WOULD NOT GO BELOW 20.9 PERCENT DURING MANUAL FEATHER CHECK, AND THE NH RUNS AT 64.3 PERCENT. AIRCRAFT RETURNED TO THE GATE WITHOUT FURTHER INCIDENT. MAINTENANCE REMOVED AND REPLACED THE RIGHT ENGINE HMU IAWJul 27, 1998 · N12709 · Emb EMB120RTSDR 98ZZZX3160Control Cable · brokenON LAST FLIGHT OF THE DAY, ROLLED THE GAS PRODUCER N1 CONTROL TO FLIGHT IDLE. UNABLE TO SHUT ENGINE OFF WITH THROTTLE CONTROL. ENGINE HAD TO BE SHUT DOWN MANUALLY. UPON INVESTIGATION, FOUND CABLE ASSY BROKEN UNDER PILOT'S SEAT DECK. FAILED PART, POSSIBLY BJul 23, 1998 · N969W · Bell 206BSDR 98ZZZM820Transducer · failedFLT 6503 - LGA-IAD - DURING LANDING, EXPERIENCED A LT ENGINE TQ FLUCTUATION. A/C DECLARED AN EMERGENCY AND MADE AN UNEVENTFUL LANDING AT IAD. MX CONTROL DISPATCHED. MX TO THE AIRCRAFT WHERE THE MX PERSONNEL FOUND A DISCREPANCY WITH THE LT ENGINE NR 1 TORQUEJul 23, 1998 · N332UE · Jetair JETSTM4101SDR CA980908034Line · fractured(CAN) DURING CLIMBOUT, NR 2 ENGINE HAD A LOSS OF POWER. THE FUEL FLOW REGULATOR WAS REPLACED, BUT THE SNAG WAS NOT FIXED. FURTHER INSPECTION FOUND THE P1 LINE BROKEN AT THE PROBE. THE LINE WAS REPAIRED AND THE AIRCRAFT RETURNED TO SERVICE.Jul 12, 1998 · Lkheed 1011385114SDR 98UAL900314Fuel Control · malfunctionedON TAKEOFF, MAX POWER OF 1.42 EPR SET, LEFT ENGINE WAS 1.42. RIGHT ENGINE 1.38 TO 1.39 EPR. RIGHT ENGINE FUEL FLOW SEVERAL HUNDRED POUNDS LESS THAN LEFT ENGINE. LEFT ENGINE HAD THROTTLE REMAINING. RIGHT ENGINE THROTTLE AGAINST THE FIREWALL.Jul 10, 1998 · N576UA · Boeing 757222
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