JASC 4930

Service difficulty reports · 1,088

Reports filed under 4930 · APU Engine Fuel and Control, 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 = '4930'
  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 USAASB01019Fuel Control · malfunctionedMCO - FLT 2993 - EN ROUTE FROM BOS-FLL, AT FL330, THE APU SHUTDOWN IN FLIGHT. WITH THE NR 1 CSD/GENERATOR ALREADY ON MEL, FLIGHT DIVERTED TO MCO. CAPTAIN WAS ABLE TO RESTART THE APU DESCENDING THROUGH FL240. FLIGHT LANDED WITHOUT FURTHER INCIDENT AT MCO ANDJan 23, 2001 · N283AU · Boeing 7372B7SDR ASAA0180028Fuel Line · leakingPDX - FLT 719, DURING CLIMB, STRONG FUEL ODOR WAS NOTED IN COCKPIT. DISCOVERED FUEL LEAK AT APU ATOMIZER-TO-FUEL LINE ELBOW. TIGHTENED ELBOW FITTINGS. SYSTEM WAS THEN OPS CHECKED, WITH NO ODOR OR LEAKS BEING NOTED. (M)Jan 22, 2001 · N944AS · Doug DC983SDR MWEA010099Fuel Control · out of adjWHILE IN CRUISE FLIGHT APU RPM AND GENERATOR FREQUENCY INDICATIONS WERE OUTSIDE ACCEPTABLE LIMITS. FLIGHT RETURNED TO OMAHA. MAINTENANCE ADJUSTED FUEL CONTROL UNIT.Jan 18, 2001 · N602ME · Doug DC932SDR C2XA00IA417Apu · leakingCREW REPORTED A FUEL SMELL IN COCKPIT WITH THE APU BLEED SELECTED ON. MX PLACED THE APU ON MEL 49-52-01, CATEGORY C, PLACARD #001986, AND A/C WAS RETURNED FOR SERVICE. 11/14/00 MX REMOVED/REPLACED APU IAW EMB-120 MM49-10-01 AND A/C WAS APPROVED FOR RETURN TO SNov 14, 2000 · N22727 · Emb EMB120RTSDR USAASB00294Fcu · malfunctionedBNA - FLT 1577 - EN ROUTE CLT TO MCI, CAPTAIN ADVISED CLIMBING FROM FL 310 TO FL 350 WHEN APU GEN DROPPED OFF-LINE AT FL 330. WITH LT GEN ALREADY ON MEL, CAPTAIN DESCENDED FLIGHT BACK DOWN TO FL 310, VOLTS INDICATED OK BUT FREQUENCIES INDICATING ZERO. DESCENOct 16, 2000 · N425US · Boeing 737401SDR AU001174Fuel Control · leaking(AUS) APU FUEL CONTROL UNIT LEAKING FUEL.Sep 24, 2000 · Boeing 767330SDR AU000982Fuel Control · leaking(AUS) APU FUEL CONTROL UNIT LEAKING. INVESTIGATION COULD FIND NO LEAKS. SUSPECT LEAK WAS RESIDUAL FUEL FROM COMBUSTION CASE DRAIN VALVE.Sep 24, 2000 · Boeing 767338SDR DL777001663Apu · malfunctionedLT ENG GEN/IDG ON MCO-APU S/D GOING THROUGH 19K APU RE-START OK BUT CREW LOST CONFIDENCE IN THE APU FOR THE CROSSING. AIR TURNBACK, ELEC GEN OFF L EICAS ILLUMINATED, RESET AS PER CHECKLIST. EICAS RETURNED, NO HELP. REPLACED LT IDG PER MM ENG RUN ALL INDICAug 29, 2000 · N865DA · Boeing 777232SDR DLM88001610Fcu · leakingIN CRUISE STRONG KEROSENE SMELL. FOUND APU FCU LEAKING. REPLACED APU, PERFORMED DUCT BURNOUT.Aug 21, 2000 · N905DE · Doug MD88SDR USAAD00133Fuel Control · leakingFLL-PIT - FLT 1821 - FUEL SMELL IN PASSENGER CABIN AND COCKPIT. MAINTENANCE REPLACED THE APU FUEL CONTROL UNIT. (M)Aug 16, 2000 · N817US · Doug DC982SDR MZZA00012Fuel Control · leakingFLT 954 - FLIGHT ATTENDANTS REPORT FUEL OR INSECTICIDE TYPE FUMES IN CABIN. WARMER CABIN TEMP INCREASED FUME INTENSITY. MAINTENANCE INSPECTED AC SECTION, PRI AND SEC HEAT EXCHANGERS AREA, CHRISTMAS TREE AREA DUCTING AND NO FUEL LEAKS FOUND. UPON FURTHER INSJun 1, 2000 · N79745 · Boeing 727224SDR AALA006080Fuel Line · leakingLAX - STRONG FUEL SMELL IN COCKPIT AND CABIN ON DESCENT WITH NOSE DOWN ATTITUDE FUEL TANKS AT 6000 IN MAIN AND 0 IN CENTER. FILLED WING TANKS, CHECKED FOR LEAKS, NONE FOUND. INSPECTED ENGIENS AND RAN ENGINES. NO FUEL ODOR NOTED. FOUND FUEL LINE TO APU LEAKApr 27, 2000 · N823RA · Doug DC982SDR AALA20000402Controller · failedSEA - APU STATUS MESSAGE NOTED IN FLT APPROX 30-40, AFTER SHUTDOWN, UNABLE TO START IN FLT. ABLE TO START IMMEDIATELY AFTER ARRIVAL SEA, PLACARDED APU START SYSTEM PER MEL 49-3A AUTH 2-69D-C ENTERED TO MIC-APU TO REMAIN ON THROUGHOUT FLIGHT. REMOVED AND REPLFeb 28, 2000 · N773AN · Boeing 777223SDR CA000224047Apu · detected(CAN) FLIGHT CREW NOTICED DURING DESCENT AFTER STARTING THE APU AND BLEED TRANSFERRED TO APU, A FUEL SMELL IN THE COCKPIT VIA AIR CONDITIONING PACK. APU SHUT DOWN. INITIAL INSPECTION DID NOT LOCATE ANY EXTERNAL LEAK (REQUIRES INVESTIGATION TO THE INTERNAL AFeb 24, 2000 · Cndair CL6002B19SDR CA000222015Apu · failed(CAN) STRONG SMELL OF FUEL IN CABIN AND COCKPIT. BOTH ON GROUND AND INFLIGHT. FUEL RESIDUE IN APU BAY AREA. CLEANED AND TIGHTENED APU FUEL SUPPLY LINE TO FUEL CONTROL UNIT. LEAK CHECKED, CHANGED BOTH COALESCER BAGS.Feb 6, 2000 · Cndair CL6002B19SDR 99UAL900661Fuel Control · leakingON TAXI OUT AN AMERICAN AIRLINES CREW REPORTED FLAMES FROM THE APU EXHAUST. CREW SHUT DOWN THE APU AND RETURNED TO THE GATE. MM RESTARTED THE APU AND FLAMES RETURNED. FIRE BOTTLE WAS BLOWN AND FIRE DEPARTMENT CALLED TO STANDBY. *S/D* THE CAUSE OF THE FAILDec 20, 1999 · N401UA · Airbus A320232SDR C2XA99BT101Line · cloggedEWR - FLT 8081 - CREW REPORTED AFTER TAKEOFF IN CLIMB AT 3000 FEET, SMELL IN AIRCRAFT SMOKE OR FUEL, AIR RETURNED TO EWR AND LANDED WITHOUT INCIDENT. MAINTENANCE TROUBLESHOT SMELL DOWN TO FAULTY APU. APU PLACED ON MEL AND RETURNED TO SERVICE. FOUND APU FUELNov 8, 1999 · N16963 · Emb EMB145SDR 9904429911Fuel Control · malfunctionedDURING CRUISE FLIGHT, CABIN AND FLIGHT CREW PERSONNEL SMELLED FUMES IN THE AIRCRAFT. CATPAIN AND FIRST OFFICER DONNED OXYGEN MASKS. AN UNEVENTFUL LANDING WAS MADE AT DESTINATION AIRPORT. MAINTENANCE FOUND THAT FUEL WAS BEING INGESTED INTO THE APU. SOURCE OOct 28, 1999 · N961N · Doug DC931SDR A6WA9900118B-Nut · looseAT GATE BEFORE DEPARTURE, WHEN CREW DID PREFLIGHT, STRONG FUEL SMELL IN CABIN AND COCKPIT WITH APU BLEED AIR ON. FOUND APU FUEL SOLENOID B-NUT LOOSE, LEAKING FUEL, TIGHTENED PERFORMED PACK BURNOUT. NO SMELL NOTED. (M)Oct 13, 1999 · N608AW · Bag BAE146200ASDR 99UAL900521Fuel Cluster · failedAPU WOULD NOT START ON LANDING. *S/D* PRIMARY CAUSE WAS ATTRIBUTED TO A FAILED FUEL CLUSTER.Oct 6, 1999 · N798UA · Boeing 777222SDR ABXA9900724Fuel Line · looseON DESCENT, FUEL/EXHAUST FUMES SMELL COMING FROM AIR CONDITIONING SYSTEM. CREW USED OXYGEN FROM 1300 FEET. RETORQUED FUEL LINE IN APU COMPARTMENT.Sep 20, 1999 · N937AX · Doug DC931SDR 99ZZZX3912Valve · failedCREW ATTEMPTED TO START APU DURING QUICK TURN AND APU FAILED TO START. TOPPING ON VALVE ENABLE APU START. VALVE WAS REPLACED WITH NEW WHEN AIRCRAFT RETURNED HOME. IF APU IS REQUIRED IN CERTAIN CIRCUMSTANCES, IT MAY OR MAY NOT START DUE TO THE UNRELIABLE VALSep 9, 1999 · N326EW · Amd FALCON2000SDR 99ZZZX4244Clamp · failedTHE T-HEAD BOLT ON CLAMP THAT HOLDS THE FUEL CONTROL TO THE APU BROKE LETTING THE CLAMP SPLIT AND FUEL CONTROL TO COME OFF OF APU.Aug 9, 1999 · N9550A · Amd FALCON50MYSTSDR 99ZZZX4245Clamp · failedTHE T-HEAD BOLT ON CLAMP THAT HOLDS THE FUEL CONTROL TO THE APU BROKE LETTING THE CLAMP SPLIT AND FUEL CONTROL TO COME OFF THE APU.Aug 6, 1999 · N8550A · Amd FALCON50MYSTSDR USAABB99037Fuel Control · failedLGW - FLT 49 - EN ROUTE CDG/PIT, WITH RIGHT IDG ON MEL AND THE APU OPERATING, THE APU 'FAULT' LIGHT ILLUMINATED AND THE EICAS MESSAGE 'APU FAULT' APPEARED. THE APU WAS SHUT DOWN. THE FLIGHT DIVERTED TO LGW AND LANDED WITH NO FURTHER INCIDENT. MAINTENANCE REJul 21, 1999 · N646US · Boeing 767201SDR 99ZZZX3913Valve · failedAFATER LANDING FOLLOWING A LONG FLIGHT AT FL 430, CREW ATTEMPTED TO START APU FOR A QUICK TURN. APU FAILED TO START. THEREFORE, LEFT NR 2 ENGINE RUNNING FOR CROSSBLEED START. TROUBLESHOOTING REVEALED THAT FUEL SOLENOID VALVE FAILED TO OPEN WHEN COMMANDED BYJul 19, 1999 · N326EW · Amd FALCON2000SDR COMA9960275Valve · malfunctionedRAMP ATTENDANT ADVISED GLOW ILLUMINATING FROM APU EXHAUST 20 MINUTES AFTER IT WAS SHUT DOWN. NO EVIDENCE OF FIRE FOUND. REMOVED AND REPLACED APU FUEL SOLENOID VALVE FOR TROUBLESHOOTING.Jun 15, 1999 · N713CA · Cndair CL6002B19SDR RU3A99001Cover · brokenANC - AIRPORT RAMP. AIRCRAFT OBSERVED TO BE LEAKING FUEL FROM THE LOWER TAIL SECTION WITHIN A FEW MINUTES FOLLOWING APU START. THE AIRCRAFT ENGINES WERE NOT STARTED. THE APU WAS SHUT DOWN WITHOUT FURTHER INCIDENT AND THE FLIGHT CANCELLED. INVESTIGATION REVJan 26, 1999 · N86 · Cndair CL6002B16SDR 99ZZZX218Pump · failedUNIT WAS INSTALLED ON AIRCRAFT FOR ONLY 51 HOURS BEFORE FAILURE. (PREVIOUS TEAR-DOWN REPORT READ - 'CAUSE FOR REMOVAL UNCONFIRMED'. CAUSE WAS LISTED AS 'APU PUMP FAIL LIGHT' ON. BENCH CHECKED. OK). THIS FAILURE WAS THE SAME. APU PUMP 'FAIL' LIGHT ON. INSDec 15, 1998 · N270RA · Cndair CL6002B16SDR 99ZZZX217Pump · failedUNIT RECEIVED IN FAILED CONDITION. PREVIOUS TEAR-DOWN REPORT, UNIT INOPERABLE, BLOWN FUSE, BRUSHES WORN UNEVENLY, ARMATURE GROOVED, BRUSHES CHIPPED. UNIT REPAIRED. WHEN INSTALLED IN AIRCRAFT, UNIT RAN SLOWLY, MADE GRINDING NOISES. UNIT REMOVED FROM AIRCRAFDec 15, 1998 · N270RA · Cndair CL6002B16SDR 99ZZZX216Pump · failedAPU FUEL PUMP 'FAIL' LIGHT ON. REMOVED FAILED APU FUEL PUMP. INSTALLED REPLACEMENT UNIT. OPERATION NORMAL.Dec 15, 1998 · N270RA · Cndair CL6002B16SDR VJ9800621O-Riing · failedAFTER TAKEOFF FLIGHT CREW PERCEIVED THE ODOR OF FUMES IN COCKPIT AND ELECTED TO RETURN TO ATL MAINTENANCE BASE. INVESTIGATED BY MAINTENANCE AND FOUND FUEL SHROUD GOING TO APU TO NOT BE PROPERLY SEATED. REPLACED O-RING AND SEAL TO INSURE INTEGRITY OF FUEL LINNov 19, 1998 · N921VV · Doug DC932SDR DLM88982346Sensor · failedAT V1, APU FLAMED OUT 122 KNOTS AND ELECTRICAL LOAD WAS PICKED UP BY RIGHT ENGINE ONLY. DID NOT ATTEMPT TO RESTART APU. RETURNED TO DFW. REPLACED PS SENSOR AND SET APU FOR VERIFICATION FLIGHT.Nov 13, 1998 · N948DL · Doug MD88SDR 98ZZZM823Fuel Control · failedNR 1 ENGINE FLAMED OUT IN FLIGHT. UNABLE TO RESTART. AIR TURN BACK TO BGY. REMOVED AND REPLACED IGNITOR BOX, FUEL CONTROL. FUEL PUMP, RAN ENGINE AND TRIMMED. CHECKS NORMAL. (M)Sep 30, 1998 · N308AS · Boeing 727227SDR COMA9860266Fuel Line · leakingSTRONG JET FUEL ODOR IN COCKPIT. REPAIRED LEAKING FUEL LINE CONNECTION AT THE APU.Sep 16, 1998 · N976CA · Cndair CL6002B19SDR CA980928028Bolt · loose(CAN) 1.5 HOURS AFTER LANDING, SMOKE WAS SEEN COMING FROM THE AUXILIARY POWER UNIT. THE APU WAS SELECTED OFF FROM THE COCKPIT. INSPECTION FOUND FUEL IN THE APU OIL TANK AND EVIDENCE OF BURNING AT THE EXHAUST MUFFLER. FURTHER INSPECTION FOUND A FCU BOLT HAD Aug 26, 1998 · Airbus A340313SDR COMA9860179Ecu · failedAPU FAILED AFTER TAKEOFF. REPLACED THE APU ECU.Jul 17, 1998 · N963CA · Cndair CL6002B19SDR DL757981416Ecu · failedAPU FLAMED OUT IN FLT FOLLOWED PROCEDURES AND GOT APU FAULT LIGHT, NO START ALLOWED. ONE ENG GEN PREV DEFERRED, ROBBED APU CONTROL ECU FROM A/C 628. INSTALLED BITE CK OK. OPERATED APU W/AIR AND ELECTRIC OPS NML.Jul 6, 1998 · N641DL · Boeing 757232SDR HALA9800170Packing · failedHNL - FLT 114 - (LOG PAGE NR A145677) - FUEL SMELL IN CABIN. REMOVED AND REPLACED PACKING ON APU FUEL MANIFOLD FITTING AND BOTH WATER SEPARATORS. LEAK CHECK OK. (X)Jun 22, 1998 · N679HA · Doug DC951SDR 98ZZZM868Manifold · leakingNR 1 ENGINE FUEL LEAK AT BOTH MANIFOLDS AT START. REPLACED LEFT AND RIGHT FUEL MANIFOLDS, REF WORK CARD NR 29.Jun 3, 1998 · N612AW · Bag BAE146300ASDR 98ZZZM867Manifold · leakingNR 1 ENGINE FUEL LEAK AT BOTH MANIFOLDS AT START. REPLACED LEFT AND RIGHT FUEL MANIFOLDS, REF WORK CARD NR 29.Jun 3, 1998 · N612AW · Bag BAE146300ASDR 9806789611Seal · leakingDURING CRUISE FLIGHT, APU OIL PRESSURE LOW LIGHT CAME ON AND APU SHUT DOWN. CROSSTIE RELAY WAS ON MEL. FLIGHT CREW RETURNED TO DEPARTURE AIRPORT. MAINTENANCE FOUND OIL LEAK AT FUEL CONTROL GARLOCK SEAL AND REPLACED SEAL. MAINTENANCE ALSO REPLACED AC BUS COApr 19, 1998 · N611NA · Doug DC932SDR TWAA9803301Apu · malfunctionedMCI - FLT 123 - THE APU QUIT IN-FLIGHT WITH THE LEFT ENGINE GENERATOR ALREADY DEFERRED INOPERATIVE PER MEL. MADE UNSCHEUDLED LANDING AT MCI. CORRECTED LT ENGINE GENERATOR BY REPLACING THE GENERATOR AND CSD. DEFERRED THE APU INOPERATIVE PER MEL. CHECK-C 9-1Mar 6, 1998 · N911TW · Doug DC982SDR 98ZZZX91Hose · leakingCREW COMPLAINED OF FUEL ODOR IN AFT BAGGAGE COMPT. INVEST REVEALED A FUEL HOSE LEAKING THRU OUTER JACKET. HOSE IS APPROX 16 INCHES LONG AND LOCATED ABOVE RT FWD CEILING OF AFT BAGGAGE COMPT BETWEEN APU FUEL SHUT-OFF VALVE AND A UNION. THE OTHER SIDE IS ATTDec 15, 1997 · N67SF · Cessna 650SDR HALA9700300Fuel Line · leakingFLT 25 - HNL - HEAVY SMELL OF KEROSENE IN COCKPIT AND CABIN AFTER A/C ARRIVED AT GATE. FOUND FUEL LINE TO APU LEAKING AT 'B' NUT. TIGHTENED 'B' NUT. REPLACED PACKINGS NR 1, NR 2, AND NR 3. RAN ENGINE AT GATE, OK FOR SERVICE. (M)Dec 7, 1997 · N116AA · Doug DC1010SDR CALA9701503Fcu · leakingWHILE OPERATING THE APU WITH THE NR 1 GENERATOR PLACARDED INOPERATIVE, THE APU AUTO SHUTDOWN WHEN CLIMBING THROUGH 28,000 FEET. THE APU WAS RESTARTED AT 26,000 FEET AND THE AIRCRAFT LANDED WITHOUT FURTHER PROBLEM. THE APU FCU WAS FOUND LEAKING. THE APU FCU Oct 24, 1997 · N33805 · Doug DC982SDR CALA9701388Fcu · inoperativeTHE APU WOULD NOT START DURING FLIGHT. MAINTENANCE FOUND THE APU FUEL CONTROL UNIT AT FAULT. THE APU FCU WAS REMOVED AND REPLACED IAW MM 49-31-11. APU LEAK AND OPERATIONAL CHECKS WERE GOOD.Sep 24, 1997 · N34315 · Boeing 7373T0SDR 97UAL900699Fuel Control · malfunctionedAPU WOULD NOT START. *S/D* REPLACED APU FUEL CONTROL PER MM 49-31-01. APU CHECKS GOOD. FUEL CONTROLS ARE BEING UPGRADED TO THE LATES DASH 17 CONFIGURATION PER SERVICE BULLETIN 3882500-49-7156.Sep 10, 1997 · N534UA · Boeing 757222SDR USAABB97105Fuel Contl Unit · failedSFO - FL 114, EN ROUTE SEA-PIT, WITH THE RIGHT IDG ON MEL AND THE APU OPERATING, THE APU QUIT RUNNING. FLIGHT RETURNED TO SEA AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED THE APU FUEL CONTROL UNIT. (M)Sep 7, 1997 · N620AU · Boeing 7572B7SDR 97ZZZX4158Fuel Pump · leakAPU PUMP IS LEAKING. SENT TO DUKES INC., FOR REPAIR/OVERHAUL. REQUEST FAILURE ANALYSIS AND OVERHAUL.Aug 25, 1997 · N8271 · Lear 60LEAR
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