JASC 7322
Service difficulty reports · 1,272
Reports filed under 7322 · Fuel Control/Reciprocating Engines, 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 = '7322' 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 = '7322' 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 AU970694Bearing · failed(AUS) RH ENGINE FUEL CONTROL UNIT (FCU) FAULTY - BEARING FAILED - FCU TO FUEL PUMP DRIVE COUPLING SHEAREDSDR 97ZZZX3089Throtle Body · stuck openTHROTTLE STUCK OPEN. GAINED ACCESS TO AIRCRAFT ENGINE THROTTLE BODY BY REMOVING RT AND LT TOP ENGINE COWLINGS AND LOWER ENGINE COWL. RAN THROTTLE THROUGH AND SAW THROTTLE ARM LOOSE AND SLIPPING ON CARBURETOR. REMOVED AND INSPECTED ARM SERRATIONS AND CARBURETSDR 97ZZZX2877Fulcrum Pin · spalledENGINE QUIT ON TAKEOFF JUST AFTER ROTATION RESULTING IN DAMAGE TO THE AIRCRAFT. ENGINE WAS CHECKED FOR FUEL, COMPRESSION, AND IGNITION. ENGINE WAS STARTED AND RUN-UP. OPERATION APPEARED TO BE NORMAL. DISASSEMBLED CARBURETOR AND BENCH CHECKED. FLOAT LEVEL SDR CA970602005Sense Line · loose(CAN) AFTER ENGINE CHANGE DURING TEST FLIGHT ON LEVEL OFF AT 14,000 FEET WITH ENGINE POWER REDUCTION #2 ENGINE SPOOLED DOWN TO IDLE. MULTIPLE ATTEMPTS, THROUGH POWER LEVER MOVEMENTS, TO REGAIN POWER DURING DESCENT AND LANDING WERE UNSUCCESSFUL. AFTER TEST FLIGSDR AU970661Screw · missing(AUS) CARBURETTOR MIXTURE ADJUSTMENT SCREW MISSING - SUSPECT BROKEN FRICTION SPRING ALLOWED SCREW TO UNWINDSDR 97ZZZX3794Seal · leakSERVO WAS OVERHAULED ON APPROXIMATELY 1-28-97. COMPONENT OPERATED WITHOUT PROBLEM UNTIL 5-11-97 WHEN IT HAD ACCUMULATED 30 HOURS IN SERVICE. ON 5-11-97, EXPERIENCED IN-FLIGHT ENGINE ROUGHNESS WHICH ABATED SOMEWHAT WITH EXCESSIVELY LEANING OF THE MIXTURE. UPSDR 97ZZZX2662Servo · seal leakENGINE ROUGHNESS DUE TO EXCESS RIGH MIXTURE. FOUND RECENT OVERHAULED SERVO TO BE AT FAULT DUE TO SEAL LEAKING FUEL INTO AIR CHAMBER. SERVO TSO SERVICE 30 HOURS. SEAL, S/N 2539561.SDR 97ZZZX2781Carburetor · looseTHROTTLE BODY LOOSE AT PARTING SURFACE TO FUEL BOWL DUE TO LOOSENING OF LOCKING TABS ' NOT THE RETAINING BOLTS'. SUBMITTER RECOMMENDS SAFETY WIRE IN PLACE OF TABS. THIRD INCIDENT NOTED WITH LOCKING TABS.SDR CA970527008Fuel Contrl Unit · sheared shaft(CAN) IN CRUISE AT 16,600 FEET THE #4 ENGINE SURGED. THE TORQUE, T5 AND NG ALL CLIMBED BEYOND OPERATING LIMITS. EMERGENCY PROCEDURES WERE CONDUCTED AND THE ENGINE SHUTDOWN. POST FLIGHT INSPECTION FOUND THE FUEL CONTROL UNIT TO FUEL PUMP INPUT SHAFT HAD SHEAREDSDR CA970527007Hydro Mech Unit · failed(CAN) FUEL PRESSURE CAUTION LIGHT ON #2 ENGINE DURING OPERATIONS LED TO INVESTIGATION OF THE #2 ENGINE HYDRO MECHANICAL FUEL CONTROL UNIT (HMU), WHICH WAS FOUND TO HAVE AN EXTERNAL LEAK. THE HMU WAS REPLACED AND THE ENGINE WAS GROUND RUN SERVICEABLE.SDR 97ZZZX2804Carburetor · crackedDURING ANNUAL INSPECTION, FUEL FOUND SEEPING FROM LOWER AREA OF CARBURETOR. FURTHER INVESTIGATION FOUND A BOLT USED TO MOUNT THE AIRBOX TO THE CARBURETOR WAS TOO LONG AND HAD BROKEN THE CARBURETOR BOWL. SUBMITTER STATED MAINTENANCE PERSONNEL SHOULD BE REMINDSDR AU970517Fcu · wrong part(AUS) FUEL CONTROL UNIT WAS A SUPERSEDED MODELSDR CA970514008Fuel Contrl Unit · faulty(CAN) DURING CLIMB THE ENGINE POWER FLUCTUATED ABOUT 50 PERCENT WITH THE AIRCRAFT YAWING. REPLACEMENT OF THE FUEL CONTROL UNIT CLEARED THE PROBLEM.SDR 97ZZZX2026Carburetor · leakingTWO BOWL SCREWS LEAKING. FUEL BOWL DRAIN LEAKING. BOTTOM OF CARBURETOR SMALL HOUSING OF ACCELERATOR PUMP LEAKING. VERY POOR QUALITY ASSURANCE. SUBMITTER STATED ALSO SAME PROBLEM ON AN OVERHAULED MODEL - SAME P/N, 10-5217.SDR CA970508002Fuel Contrl Unit · faulty(CAN) ENGINE SLOW TO SPOOL UP ON TAKEOFF. AT ALTITUDE ROLL BACK OF 20 PERCENT OCCURRED AND RUMBLE NOISE HEARD. PRECAUTIONARY ENGINE SHUTDOWN WAS CARRIED OUT. POST FLIGHT CORRECTIVE ACTION WAS REPLACEMENT OF THE ENGINE FUEL CONTROL UNIT. THE ENGINE WAS RUN UP SSDR AU970528Spindle · separated(AUS) ENGINE FUEL CONTROL UNIT IDLE MIXTURE ADJUSTMENT SPINDLE MISSING- SUSPECT CAUSED BY FAILURE OF POSITIONING SPRING WHICH THEN ALLOWED THE ADJUSTMENT SPINDLE TO VIBRATE FREESDR 97ZZZX2339Carburetor · shaft frozeTHROTTLE SHAFT FROZE IN BUSHINGS. POSSIBLE RESULT OF PREVIOUS INSTALLATION OF THROTTLE SHAFT KIT. UNABLE TO DETERMINE EXACT CAUSE.SDR 97ZZZX2333Carburetor · defectiveINSTALLED OVERHAULED CARBURETOR. WOULD NOT MEET MINIMUM STATIC RPM OF 2,500 RPM. ANOTHER NEW CARBURETOR MET RPM. OLD UNIT OBSERVED IDLE MIXTURE NEEDLE AS TOO SHORT. VENTURI NUT CENTERED. SAFETY WIRE SLOPPY.SDR AU970440Valve · faulty(AUS) LH ENGINE TEMPERATURE LIMITER BYPASS VALVE FAULTYSDR 97ZZZX2900Throttle Valve · out of adjustOVERHAULED CARBURETOR FURNISHED WITH LYCOMING OVERHAULED ENGINE WOULD NOT IDLE BELOW 1,000 RPM AFTER BUILD-UP AND INSTALLATION. CARUBURETOR WAS NEWLY OVERHAULED. REMOVAL AND INSPECTION REVEALED THE THROTTLE PLATE WAS NOT ALIGNED CORRECTLY AND WAS BINDING ON SDR CA970715022Fuel Contrl Unit · faulty(CAN) ONGOING TOUBLESHOOTING OF THE #1 ENGINE RIGGING EVENTUALLY REQUIRED THE REPLACEMENT OF THE FUEL CONTROL UNIT. ACCELERATION PICKUP AND THE MOVEMENT OF THE INTERNAL RIGGING PROPERTIES WERE THE PRIMARY CONCERNS AND CONSULTATION WITH PRATT & WHITNEY ADVISED SDR CA970507015Fuel Contrl Unit · faulty(CAN) THE ENGINE SURGED 4-6 LBS OF TORQUE WHEN THE POWER LEVER WAS RETARDED FROM 45 TO 30 LBS OF TORQUE. THE TORQUE WOULD STABILIZE WITHOUT POWER LEVER INPUT. THE PROBLEM ONLY OCCURRED DURING DECELERATION. A NEW FUEL CONTROL UNIT WAS INSTALLED AND THERE WAS NOSDR AU970379Fcu · malfunctioned(AUS) ENGINE FUEL CONTROL UNIT SUSPECT FAULTY - ENGINE SURGED AND EGT REACHED APPROXIMATELY 520 DEGREES C (OVERTEMP) - AN HOT END INSPECTION WAS CARRIED OUT WITH NO MAJOR DAMAGE FOUNDSDR 97ZZZX2032Carburetor · jet blockedAIRCRAFT ENGINE LOST POWER FROM PARTIAL OBSTRUCTION OF MAIN JET WHICH FEEDS DISCHARGE NOZZLE. MATERIAL APPEARS TO HAVE BUILD-UP OF SEDIMENT SCALE. RECOMMEND INTERNAL BOWL INSPECTION OF CONDITION AT EACH 2,000-HOUR OPERATION.SDR 97ZZZX1983Float · failedAFTER OPENING UP CARBURETOR TO REPLACE TWO-PIECE VENTURI, NOTICED FLOAT WAS BRO KEN, ONE-HALF OF IT LAYING IN BOWL. REPLACED WITH NEW METAL TYPE.SDR CA970428001Float Assembly · broken(CAN) OWNER COMPLAINED OF CONTINUOUS FUEL LEAK FROM THE CARBURETOR. DISASSEMBLY OF THE CARBURETOR FOUND THE FLOAT SECTION SEPARATED FROM THE FLOAT BRACKET AND LAYING IN THE BOTTOM OF THE FLOAT CHAMBER.SDR AU970512Fcu · faulty(AUS) FUEL CONTROL UNIT FAULTY - FCU WOULD NOT SHUT OFF IN `IDLE CUTOFF' POSITION - RETURN SPRING NOT FITTED - PERSONNEL/MAINTENANCE ERRORSDR 97ZZZX2098Lever · misinstalledDURING ROUTINE MAINTENANCE, FUEL INJECTION ASSY FOUND LOOSE. OF THE 3 BOLTS THAT ATTACH THIS TO THE THROTTLE CONTROL ASSY, 2 BOLTS MISSING, 1 LOOSE. ASSY ABOUT TO BREAK LOOSE. ALSO, SHROUD P/N 646673 BROKEN AND LOOSE, AND CHAFING ON FUEL LINE FITTINGS. FITSDR 97ZZZX1954Carburetor · fod plugAIRCRAFT LOST POWER DURING LOCAL FLIGHT. STUDENT PILOT COULD ONLY GET 1200/1400 RPM'S, BUT MADE IT BACK TO AIRPORT. AFTER CHECKING FUEL STRAINERS, PROBLEM APPEARED TO BE IN CARBURETOR. DISASSEMBLY REVEALED A SMALL INSECT IN THE NOZZLE POWER JET ASSEMBLY. TSDR CA970327030Fuel Contrl Unit · faulty(CAN) ON CLIMB AS POWER WAS RETARDED THE #1 ENGINE STAYED AT 95 PERCENT. PILOT HAD CONTROL OF THE ENGINE ABOVE 95 PERCENT, BUT NOT BELOW. THE AIRCRAFT RETURNED TO BASE AND THE #1 ENGINE WAS SHUTDOWN PRIOR TO LANDING. THE FUEL CONTROL UNIT WAS REPLACED ON THE #SDR CA970314003Air Line · broken(CAN) #2 ENGINE WOULD NOT START IN AUTO MODE. P3 AIR LINE WAS FOUND BROKEN FROM THE P3 AIR FILTER HOUSING. NEW PART INSTALLED.SDR CA970318005Fuel Contrl Unit · faulty(CAN) ENGINE TORQUE AND TEMPERATURE CONTINUED TO INCREASE AS THROTTLE WAS RETARDED. PILOT SELECTED THROTTLE TO OFF POSITION, TEMPERATURE STILL INCREASED. ENGINE WAS SHUTDOWN. POST FLIGHT INSPECTION FOUND FUEL CONTROL UNIT FAULTY. FCU WAS REPLACED.SDR 97ZZZX1979Carburetor Screw · looseIDLE ADJUSTMENT SCREW BACKED OUT OF CARBURETOR IN-FLIGHT. ENGINE FAILED TO RUN WITH POWER SETTING BELOW 2300 RPM'S. INSTALLED NEW SPRING AND SCREW. CARBURETOR THREADS APPEAR TO BE LOOSE.SDR CA970311077Bushing · worn(CAN) FUEL CONTROL UNIT POINTER BUSHING WAS FOUND TO BE EXCESSIVLEY WORN.SDR CA970305005Fuel Contrl Unit · faulty(CAN) SHORTLY AFTER REACHING CRUISE ALTITUDE THE RPM ON #1 ENGINE REACHED 14,500 RPM. THE PROP SYNC. WAS TURNED OFF AND THE RPM RETURNED TO NORMAL CRUISE RPM. A SHORT WHILE LATER WITH PROP SYNC. ON THE RPM AGAIN INCREASED, A PRECAUTIONARY LANDING WAS CARRIED OSDR CA970225004Fuel Contrl Unit · failed(CAN) ENGINE NR 1 WOULD NOT RESPOND TO POWER LEVER WHEN PULLED BACK. FUEL FLOW AND EGT REMAINED THE SAME. ENGINE SHUT DOWN ON APPROACH. FUEL CONTROL UNIT SUSPECTED OF INTERNAL FAILURE. REPLACED FUEL CONTROL UNIT.SDR 97ZZZX819Lever · wornDURING AN ANNUAL INSPECTION, BRASS METAL FLAKES WERE NOTED ON THE THROTTLE CABLE ROD END. UPON DISASSEMBLY, THE THROTTLE ARM HOLE, WHERE THE CABLE ATTACHES, WAS FOUND SEVERELY WORN. WEAR WAS SO EXCESSIVE THE ARM WAS WORN TO WITHIN .0625 INCH FROM COMPLETE FASDR CA970221005Carburetor Screw · loose(CAN) THE ENGINE DID NOT STOP AFTER THE MIXTURE CONTROL WAS CLOSED. THE ENGINE WAS STOPPED BY SHUTTING OFF THE MAGS. INSEPCTION FOUND THAT FOUR SCREWS THAT HOLD THE CARBURETOR HALVES TOGETHER WERE LOOSE AND ONE OF THE SCREWS WAS BROKEN. THE BROKEN SCREW WAS RESDR AU970076Bracket · cracked(AUS) CARBURETTOR FLOAT BRACKET BROKEN AND SEPARATED - SEE MDR 96/0669AND MDR 96/1045 FOR SIMILAR DEFECTSSDR 97ZZZX841Pilot Valve · fracturedREF: FR25681. CRACKED SHIELD BRACKET. RETENTION LIPS OF PILOT VALVE SLEEVE FRACTURED (BOTH LIPS). PART RETURNED TO HAMILTON STANDARD FOR EVALUATION.SDR BTHA97002Fuel Servo · screw missingPILOT REPORTED DIFFICULTY STARTING AIRCRAFT. UPON INSPECTION OF THE FUEL SERVO, THE MIXTURE CONTROL STOP SCREW WAS FOUND MISSING. THE SAME STOP SCREW ON THIS SERVO SERVES FOR BOTH FULL RICH AND IDLE CUT-OFF. THE SCREW AND BUSHING WERE COMPLETELY GONE ALLOWISDR 97ZZZX831Venturi · wornOWNER REPORTED ENGINE BEING ROUGH AT LOW RPM AND POOR ACCELERATION AND HESITATION WHILE ADDING POWER, AND NOT RUNNING BELOW 1,000 RPM. INSPECTION REVEALED A TWO-PIECE VENTURI STILL INSTALLED AND WORN TO A POINT OF NEAR SEPARATION. AD 93-18-03 FOR INSTALLING SDR CA970211004Fuel Control · faulty(CAN) DURING CRUISE FLIGHT THE #1 ENGINE ROLLED BACK FROM CRUISE POWER TO APPROXIMATELY 80 PERCENT N2 AT FL390. AFTER LANDING THE "O" RINGS IN THE P3 PLUMBING WAS REPLACED AND THE ENGINE GROUND RUN SERVICEABLE. FOLLOWING DAY THE SAME PROBLEM RECURRED AND THE FSDR CA970212008Carburetor · icing(CAN) THE AIRCRAFT WAS FLYING IN -30 DEGREES CELCIUS TEMPERATURE. AFTER 30 MINUTES OF FLIGHT THE ENGINE QUIT. THE PILOT MANUALLY PRIMED THE ENGINE AND IT RAN AFTER EACH SHOT. POST FLIGHT INSPECTION OF THE CARBURETOR AND FILTER FOUND MANY WATER DROPLETS. IT IS SDR 97ZZZX834Carburetor · malfunctionAFTER LANDING, LT ENGINE WOULD NOT IDLE FOR TAXI. OUTSIDE, AIR TEMP WAS AROUND ZERO DEGREES FAHRENHEIT. SUBMITTER STATED IT IS POSSIBLE SOMETHING INTERNALLY IN THE CARBURETOR FROZE UP CAUSING THE MALFUNCTION.SDR 97ZZZX574Inject Pump · pin detachedUPON REACHING AN ALT OF 4500 FEET, THE PILOT LEANED THE MIXTURE CONT. AT THE POINT OF ENG ROUGHNESS, HE ATTEMPTED TO ENRICHEN THE MIXTURE. THE MIXTURE WOULD NOT ADVANCE. IN THE PROCESS OF TRYING TO FREE THE MIXTURE, THE ENG QUIT, AND THE MIXTURE COULD NOT BSDR AU970240Carburettor · contaminated(AUS) CARBURETTOR BANJO FITTING CONTAMINATED WITH WATER AND SEDIMENT -AIRCRAFT CRASHED ON TAKEOFFSDR 97ZZZX580Driveshaft · wornFUEL CONTROL DRIVESHAFT WAS FOUND TO BE WORN BEYOND MM LIMITS DURING ENGINE REPAIR. THE CURRENT FUEL CONTROL PART NUMBER (89770-24) INDICATES C/W EITHER ALLIED SIGNAL SB 73-0227 OR SB 73-0228. THE PRE SB CONTROLS WERE THE SUBJECT OF AD 94-26-07. C/W THESE BUSDR 97ZZZX437O-Ring · crackedDURING ANNUAL INSPECTION, A PRESSURE TEST OF THE ENGINE FUEL SYSTEM REVEALED A LEAK AT THE MIXTURE CONTROL SHAFT WHICH DRIPPED ON THE MUFFLER BELOW . REPLACEMENT OF O - RINGS 953516-10 AND 951401 CURED THE LEAK. SUBMITTER SUGGESTED CLOSE INSPECTION AND PRESSSDR 97ZZZX436O-Ring · crackedDURING ANNUAL INSPECTION, A PRESSURE TEST OF THE ENGINE FUEL SYSTEM REVEALED A LEAK AT THE MIXTURE CONTROL SHAFT WHICH DRIPPED ON THE MUFFLER BELOW . REPLACEMENT OF O - RINGS 953516-10 AND 951401 CURED THE LEAK. SUBMITTER SUGGESTED CLOSE INSPECTION AND PRESS
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