JASC 2781

Service difficulty reports · 1,399

Reports filed under 2781 · Leading Edge Slat Position Indicating 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 = '2781'
  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 96UAL900360Sensor · dirtyAIRCRAFT RETURNED TO FIELD DUE TO SLAT INDICATION PROBLEM. *S/D* GREASE AND GRIME ON SLAT NR 5 PROXIMITY SENSOR, S280 CAUSED THE FALSE INDICATION. THE SENSOR WAS CLEANED AND ADJUSTED, ACCOMPLISHED TARGET AND SENSOR BITE TEST AND FOUND NO DISCREPANCIES. OPERMay 20, 1996 · N608UA · Boeing 767222SDR 96UAL900358Indication · malfunctionedLEADING EDGE SLAT INDICATION MESSAGE OCCURRED DURING FLAP RETRACTION. SUPPLEMENTAL DATA UPDATE: PERFORMED PSEU BITE TEST AND OPERATED FLAPS. FOUND NO FAULTS PERTAINING TO LEADING EDGE SLATS. SYSTEM GROUND CHECKS NORMAL. NO PARTS WERE REMOVED FROM AIRCRAFTMay 17, 1996 · N606UA · Boeing 767222SDR 96UAL900357Sensor · damagedLEADING EDGE FLAP ASYMMETRY DISPLAYED UPON SLAT RETRACTION, SLATS LOCKED OUT. AIRCRAFT RETURNED TO FIELD. *S/D* A FAULTY SLAT PROXIMITY SENSOR CAUSED THIS DISCREPANCY. REPLACED PROXIMITY SENSOR, OPERATIONS CHECK NORMAL. PERFORMED PSEU BITE CHECK, FOUND NOMay 17, 1996 · N605UA · Boeing 767222SDR 96FDEA00937Pos Ind Switch · malfunctionL/E DEVICE MALFUNCTION ON FLAP RETRACTION. WHEN FLAPS MOVED TO 2 DEGREE YELLOW L/E FLAP LIGHT IS ON AND 2, 3, 6, 7 AND 4 POSITION TEST LIGHTS ARE GREEN. REPLACED NR 4 FLAP POSITION INDICATING SWITCH IAW MM 27-82-11, OPS CK GOOD.May 9, 1996 · N218FE · Boeing 727233SDR 96ZZZM768Flap Switch · failedATL - DURING CLIMB NR 6 LEADING EDGE FLAP INTRANSIT LIGHT ILLUMINATED. REMOVED AND REPLACED NR 6 LEADING EDGE FLAP SWITCH, MFG P/N 10-60819-8. OPERATIONAL CHECK NORMAL.Mar 29, 1996 · N54344 · Boeing 727231SDR WRLA96015Prox Elect Unit · failedDURING TAXI, FLIGHT CREW NOTED 'SLAT DISAGREE' LIGHT ILLUMINATED WITH FLAPS EXTENDED. FLIGHT CREW ELECTED TO RETURN TO GATE FOR MAINTENANCE. AIRCRAFT RETURNED TO GATE WITHOUT FURTHER INCIDENT. MAINTENANCE PERSONNEL TROUBLESHOT SYSTEM AND IDENTIFIED 'PROXIMIMar 28, 1996 · N9MMAZ · Doug DC1030SDR 96UAL900182Accessory Unit · failedNR 4 LEADING EDGE FLAP WOULD NOT RETRACT. SUPPLEMENTAL DATA UPDATE: REPLACED FLAP/SLAT POSITION SWITCH ACCESSORY UNIT. SYSTEM CHECKED GOOD. FAILURE OF THE ACCESSORY UNIT COULD NOT BE VERIFIED BY THE HOME SHOP.Mar 11, 1996 · N337UA · Boeing 737322SDR 96ZZZM631Switch · failedSTL - DURING CRUISE LEADING EDGE AMBER LIGHTS ON FORWARD PANEL ILLUMINATED. REMOVED AND REPLACED NR 5 LEADING EDGE SLAT ACTUATOR SWITCH, MFG P/N 1U11032. OPERATIONAL CHECK NORMAL. (M)Mar 9, 1996 · N64346 · Boeing 727231SDR P5CA9600156Wire · shortedWHEN LEADING EDGE DEVICES WERE EXTENDED, THE NR 2 INDICATED AMBER. AIRCRAFT RETURNED TO BLOCKS. FOUND WIRING AT THE NR 2 POSITION SWITCH WAS SHORTING TO GROUND. REPAIRED IAW STANDARD WIRING PRACTICES 20-10-13.Mar 8, 1996 · N858FT · Boeing 747123SDR 9604622203Ground Wire · brokenDURING TAKEOFF ROLL, THE LEADING EDGE INDICATOR WENT AMBER AND TAKEOFF WAS ABORTED AT 30 KNOTS. AIRCRAFT RETURNED TO BLOCKS WITHOUT INCIDENT. BROKEN GROUND WIRE WAS FOUND ON THE NR 8 LEADING EDGE SLAT EXTEND SWITCH. REPAIRED WIRE AND OPERATIONAL CHECK OK.Feb 24, 1996 · N203US · Boeing 727251SDR 96FDEA00238Slat Handle · wornSLAT DISAGREE LIGHT AIRBORNE PAST FLAPS 0 EXT APPROACH AND LANDING IN 0 EXT SLAT. SEVERAL DISAGREE LIGHTS EVEN AT SLAT EXTEND. WIGGLING SLAT HANDLE FIXED THIS EACH TIME. CHECKED LEADING EDGE SLATS PER TAFI 27-80-00 FAULTS CODE AD. BITE CHECKED PROXIMITY ELFeb 13, 1996 · N68057 · Doug DC1010FSDR 96FDEA00237Connector · looseRECEIVED SLAT DISAGREE LIGHT, AIRBORNE AT FLAPS 15 DEGREES, NO FLAP LANDING ACCOMP EWR. FOUND SLAT HANDLE LAND LIMIT SWITCH S1-380 PLUG LOOSE. RESECURED SAME, OPERATED SLATS/FLAPS SEVERAL TIMES AND ALL OPS CKS NORMAL.Feb 13, 1996 · N68057 · Doug DC1010FSDR 9602912296Linkage Arm · looseDURING CLIMB AFTER FLAP RETRACTION, NR 5 LEADING EDGE FLAP INDICATOR REMAINED ILLUMINATED. AIRCRAFT RETURNED TO MSP AND LANDED WITHOUT INCIDENT. INSPECTED FLAP POSITION INDICATION LINKAGE TO SWITCH. FOUND LINKAGE ARM LOOSE, TIGHTENED AND ADJUSTED LINKAGE LEFeb 3, 1996 · N296US · Boeing 727251SDR 96ZZZM251Switch · failedFKYC NR 9170 - KFLL-KMIA - AFTER TAKEOFF ON FLAP RETRACTION NR 4 KRUEGER FLAP INDICATION REMAINED AMBER. CYCLED FLAPS, NO HELP. RETURNED AIRCRAFT TO DFLL. MAINTENANCE REPLACED NR 4 LEADING EDGE FLAP POSITION SWITCH PER MAINTENANCE MANUAL CHAPTER 27. CYCLEDFeb 2, 1996 · N293AS · Boeing 727212SDR 96ZZZM250Switch · failedAFTER TAKEOFF DURING CLIMB, AS THE FLAPS WERE RETRACTED THE NR 4 LEADING EDGE FLAP INTRANSIT LIGHTS REMAINED ILLUMINATED. EXECUTED AIR TURN BACK TO IND. AIRCRAFT WAS LANDED WITHOUT INCIDENT. REMOVED AND REPLACED THE NR 4 LEADING EDGE FLAP POSITION SWITCH PEFeb 2, 1996 · N413EX · Boeing 72751CSDR 9602359957Switch · malfunctionedAFTER TAKEOFF AND DURING FLAP/SLAT RETRACTION, SLAT DISAGREEMENT LIGHT ILLUMINATED AND BLUE SLAT EXTEND LIGHT REMAINED ON. HANDLE FELT LIKE IT WAS BINDING IN THE RETRACT POSITION. FLIGHT RETURNED TO MSP AND LANDED WITHOUT INCIDENT. REPLACED THE LEFT AND RIGJan 30, 1996 · N915RW · Doug DC931SDR 96UAL900073Fseu · malfunctionedAFTER TAKEOFF WITH FLAP RETRACTION, LEADING EDGE FLAP ASYMMETRY EICAS MESSAGE APPEARS AND AMBER WARNING PRESENT. FLAPS APPEAR TO BE VISUALLY RETRACTED. AIRCRAFT RETURNED TO MIA. SUPPLEMENTAL DATA UPDATE: THE LEADING EDGE FLAP ASYMMETRY EICAS MESSAGE AND AMJan 29, 1996 · N608UA · Boeing 767222SDR 96UAL900051Flap Indication · malfunctionedLANDED UNDER AMBER ALERT DUE TO IRREGULAR FLAP CONFIGURATION. EICAS MESSAGE LEADING EDGE SLAT ASSYMMETRY DISPLAYED, LEADING EDGE ILLUMINATED WITH FLAP LEVER, ONE UNIT. PERFORMED PSEU BITE TEST AND NO FAULT. LEADING EDGE AND TRAILING EDGE FLAPS OPERATED NORMJan 22, 1996 · N608UA · Boeing 767222SDR 96FDEA00013Switch · inoperativeAFTER A NORMAL T/O AND FLAP RETRACTION, WE LEVELED AT 5,000 FT AND LEADING EDGE DEVICE LIGHT CAME ON 2 DEGREE SHOWED NR 5 LED UNSAFE. WING ANTI-ICE ON CHECKLIST COMPLETION EXTINGUISHED LIGHT BUT IT CAME ON AGAIN SEVERAL TIMES NO STRUCTURAL LIMITS EXCEEDED. AJan 4, 1996 · N478FE · Boeing 727277SDR 9520472715Indicating Sw · malfunctionedDURING APPROACH, NR 3 LEADING EDGE DEVICE DID NOT INDICATE EXTENDED FOR LANDING. AIRCRAFT LANDED WITHOUT INCIDENT. REPLACED THE LEFT LEADING EDGE INBOARD INDICATING SWITCH. CHECKED OK.Dec 14, 1995 · N719RC · Boeing 7272S7SDR 96ZZZM53Lock Out Light · illuminatedFLT NR 741 - SEA - DURING DESCENT, THE LEADING EDGE FLAP/SLAT LOCKOUT LIGHT ILLUMINATED. RESET BOTH ASYMMETRICAL BRAKES, FLAP/SLAT OPERATION CHECKED NORMAL.Nov 29, 1995 · N31029 · Lkheed 1011385115SDR 95UAL900260Indicator Wire · failedNR THREE LEADING EDGE DEVICE FAILED TO RETRACT AFTER TAKEOFF. THIS WAS FOUND TO BE AN INDICATION PROBLEM. THE NR THREE LEADING EDGE SLAT ACTUATOR ROD END WIRE ASSEMBLY WAS REPLACED. CHECKS O.K.Nov 14, 1995 · N9054U · Boeing 737222SDR P5CA9500836Transmitter · failedDURING TAXI OUT, FLAPS SELECTED 10 DEGREES, THE OUTBOARD STOP AT 5 DEGREES, RECYCLED NO HELP. FOUND RIGHT OUTBOARD FLAP TRANSMITTER AT FAULT REPLACED TRANSMITTER AND CANNON PLUG PER MAINTENANCE MANUAL 27-58-01.Nov 6, 1995 · N830FT · Boeing 747121SDR P5CA9500835Position Ind · inoperativeDURING TAXI OUT, LOWERING FLAPS, OUTBOARD FLAP POSITION INDICATIONS SPLIT LT/RT. SPLIT CAUSED ASYMMETRY LOCKOUT. REMOVED AND REPLACED OUTBOARD FLAP POSITION INDICATOR IAW MM 27-58-00, PERFORMED SEVERAL OP CHECKS AND ALL FOUND NORMAL.Nov 3, 1995 · N851FT · Boeing 747122SDR DHL95741008Switch · failedNR 5 KRUGER FLAP LIGHTS REMAIN ON AT FORWARD AND S/O PANEL. REMOVED AND REPLACED NR 5 LEADING EDGE FLAP SWITCH PER M/M 27-81-0. OPS CHECK GOOD.Oct 31, 1995 · N741DH · Boeing 7272Q9SDR 95UAL900238Switch Assy · malfunctionedAIRCRAFT EXPERIENCED INTERMITTENT -FLAPS PRIMARY+ AND -FLAPS DRIVE+ MESSAGES IN-FLIGHT SOON AFTER TAKE-OFF. FLIGHT CREW ELECTED TO DUMP FUEL AND RETURN TO FIELD. THE L1 LEADING EDGE FLAP DRIVE UNIT POSITION SWITCH ASSEMBLY WAS REPLACED WITH AN IMPROVED P/N SOct 30, 1995 · N174UA · Boeing 747422SDR GRAA9547Switch · dirtyAIRCRAFT HAD A SLAT DISAGREEMENT LIGHT ILLUMINATE AT CRUISE WITH AN OVERSPEED WARNING. AIRCRAFT DIVERTED INTO RENO NEVADA WITHOUT FURTHER INCIDENT. MAINTENANCE CLEANED THE FLAP/SLAT SWITCH. MAINTENANCE PERFORMED AN OPERATIONAL CHECK OF THE SYSTEM. NO DEFECOct 29, 1995 · N1074T · Doug DC987SDR 9516921161Slat Sensor · malfunctionedDURING TAKEOFF, THE SLAT DISAGREE LIGHT AND THE TAKEOFF WARNING HORN SOUNDED. ABORTED TAKEOFF AND RETURNED TO GATE. ADJUSTED SLAT SENSORS AND REPLACED THE MAIN LANDING GEAR PROXIMITY CONTROL BOX.Oct 28, 1995 · N161US · Doug DC1040SDR SWAA950680Sensor · malfunctionAFTER TAKEOFF, NR 2 KRUGER FLAP INDICATED NO RETRACTION. AIRCRAFT RETURNED TO HOU AND MADE AN UNEVENTFUL LANDING. INSPECTED AREA. REPLACED FLAP FULL UP PROXIMITY SENSOR PER BOEING M/M.Oct 20, 1995 · N502SW · Boeing 7375H4SDR 95UAL900213Pos Ind Unit · intermittentABORTED TAKEOFF AT ORD AT 90 KNOTS DUE TO TAKEOFF WARNING HORN. REPLACED THE LEADING EDGE FLAP/SLAT POSITION INDICATING UNIT. TAKEOFF WARNING SYSTEM CHECKED O.K. NO FAULTS WERE FOUND WITH THE INDICATOR DURING OVERHAUL.Oct 17, 1995 · N382UA · Boeing 737322SDR 95ZZZM733Sensor · out of adjustFLT NR 647 - IND - ABORTED TAKEOFF DUE TO TAKEOFF WARNING HORN, LEADING EDGE INTRANSIT LIGHT ON LEFT NR 2 SLAT LIGHT EXTINGUISHED. MAINTENANCE ADJUSTED NR 2 LEFT SLAT SENSOR IN ACCORDANCE WITH MM 27-82-03. OPS CHECKED NORMAL. (M)Oct 1, 1995 · N185AT · Lkheed 10113851SDR 9515032278Switch · malfunctionedMDW - ON FLAP EXTENSION, DID NOT GET A BLUE LIGHT AT FIVE DEGREES FLAP. THE LEADING EDGE FLAP PANEL INDICATED THE NR 4 FLAP DID NOT EXTEND. VISUAL INSPECTION IN FLIGHT INDICATED THE FLAP TO BE DOWN. AIRCRAFT DIVERTED TO ORD DUE TO A LONGER RUNWAY AND AIRCRASep 29, 1995 · N278US · Boeing 727251SDR 9514489945Indication · malfunctionedDURING APPROACH INTO MSP, AFTER SLATS AND FLAPS WERE EXTENDED FOR LANDING, SLAT DISAGREEMENT LIGHT ILLUMINATED WITH NO BLUE SLAT EXTENDED LIGHT. SLATS WERE VISUALLY CONFIRMED TO BE IN EXTENDED POSITION AND AIRCRAFT LANDED WITHOUT INCIDENT. EMERGENCY EQUIPMENSep 24, 1995 · N8925E · Doug DC931SDR SWAA950618Sensor · inopDURING CLIMB-OUT, NR 1 KRUGER FLAP TRANSIT LIGHT REMAINED ILLUMINATED. AIRCRAFT DIVERTED INTO MDW AND MADE AN UNEVENTFUL LANDING. REPLACED NR 1 KRUGER FLAP POSITION SENSOR PER BOEING M/M.Sep 3, 1995 · N90SW · Boeing 7372H4SDR 9514819882Warning Light · illuminatedMSP - ON FINAL APPROACH, SLAT DISAGREEMENT LIGHT ILLUMINATED. SLATS WERE VISUALLY CONFIRMED TO BE EXTENDED AND NO ROLL WAS NOTICED. EXECUTED GO-AROUND AND LANDED SAFELY WITHOUT INCIDENT ON SECOND ATTEMPT. CYCLED FLAPS AND SLATS SEVERAL TIMES AND DISCREPANCYSep 2, 1995 · N670MC · Doug DC951SDR 95UAL900145Disagree Light · illuminatedLAX - SLAT DISAGREE LIGHT ON, DURING APPROACH STICK SHAKER ACTIVATED AND A/C DIVERTED TO LAS. OPERATIONALLY CHECKED SLATS AND FLAPS, BITE CHECKED PROXIMITY ELECTRONICS UNIT, ALL CHECKED OKAY. SUBSEQUENT MONITORING OF AIRCRAFT HAS PRODUCED NO REOCCURANCE.Aug 7, 1995 · N1838U · Doug DC1010SDR 9511402286Switch · malfunctionedDURING DEPARTURE CLIMB UPON FLAP RETRACTION, THE NR 4 LEADING EDGE FLAP DID NOT INDICATE STOWED. RECYCLED FLAPS TO NO AVAIL, FLIGHT RETURNED TO DTW WITHOUT FURTHER INCIDENT. MAINTENANCE FOUND THE NR 4 LEADING EDGE FLAP INDICATION SWITCH S205 INOPERATIVE. REJul 27, 1995 · N286US · Boeing 727251SDR 95ZZZM272Switch · lack of lubeDURING TAKEOFF ROLL, BEFORE AIRSPEED CALL OUT, AMBER LEADING EDGE FLAP LIGHT FLICKERED. DURING TAXI BACK NR 6 LEADING EDGE SLAT GREEN LIGHT FLICKERED OFF AND ON, ON SECOND OFFICERS PANEL. CLEANED AND SECURED NR 6 LEADING EDGE SLAT POSITION INDICATOR SWITCH. Jun 17, 1995 · N740DH · Boeing 7272Q9SDR 9510059953Indication · malfunctionedSLAT EXTEND, BLUE LIGHT DID NOT ILLUMINATE WITH FLAPS EXTENDED TO 15 DEGREES FOR TAKEOFF. ABORTED TAKEOFF AND RETURNED TO GATE. PULLED AND RESET SLAT EXTEND SWITCH CIRCUIT BREAKERS, CYCLED SLATS SEVERAL TIMES. OPERATIONAL CHECK OK. AIRCRAFT RETURNED TO SERJun 15, 1995 · N918RW · Doug DC931SDR 9508549993Connector · looseDURING APPROACH INTO BWI, SLAT BLUE EXTEND LIGHT DID NOT ILLUMINATE AFTER SLAT EXTENSION. PERFORMED GO-AROUND PROCEDURES AND RECYCLED SLATS, STILL NO BLUE LIGHT. FIRST OFFICER VISUALLY CONFIRMED SLATS TO BE EXTENDED. SUCCESSFUL LANDING WAS ACCOMPLISHED USINMay 22, 1995 · N8986E · Doug DC931SDR USAA950368Switch · stickingCLT - FLT 0346 - FLIGHT EXPERIENCED SLAT EXTENSION PROBLEMS. THE FLAPS/SLATS EXTEND LIGHT WOULD NOT STAY ON. FLIGHT RETURNED TO CLT WITHOUT FURTHER INCIDENT. MAINTENANCE FOUND THE LEFT LEADING EDGE ADVISORY SWITCH STICKING. THE SWITCH WAS REPLACED AND THE Apr 11, 1995 · N960VJ · Doug DC931SDR 95ZZZX1951Switch · malfunctionedATL/SDF - FLT 350 - RETURNED TO THE GATE FOR A SLAT DISAGREEMENT LIGHT. REMOVED AND REPLACED LT AND RT SLAT DISAGREEMENT WITH, PN H20-21B-N5N.Apr 4, 1995 · N925VV · Doug DC932SDR 95ZZZX2014Switch · failedLEFT WING NR 1 LEADING EDGE FLAP LIGHT CAME ON AT 13,000 FEET. REDUCED SPEED AND EXTENDED FLAPS TO 5 DEGREES WITH NORMAL INDICATIONS. RETRACTED FLAPS WITH NORMAL INDICATIONS. THEN 15 TO 20 SECONDS LATER, FLAP LIGHT CAME ON AGAIN. EXTENDED FLAPS AND RETURNEDApr 2, 1995 · N203AV · Boeing 727259SDR 9503539874Retract Switches · failedON APPROACH INTO DTW, SLAT DISAGREEMENT LIGHT REMAINED ON AFTER SLATS WERE EXTENDED FOR LANDING. NO ABNORMAL ROLL WAS NOTICED. CAPTAIN DECLARED AN EMERGENCY AND ACCOMPLISHED A SUCCESSFUL 'FLAP ONLY' LANDING. REPLACED THE SLAT RETRACT SWITCHES AND SLAT CONTRMar 7, 1995 · N783NC · Doug DC951SDR 9503411227Prox Unit · failedDURING TAKEOFF, THE TAKEOFF WARNING HORN SOUNDED AND THE SLAT DISAGREEMENT LIGHT ILLUMINATED. ABORTED TAKEOFF. REPLACED THE ELECTRONIC PROXIMITY UNIT. OPERATIONAL CHECK OK.Mar 4, 1995 · N227NW · Doug DC1030SDR 95ZZZW682Switch · contaminatedFLT 255 - ORD - DURING TAKEOFF THE LEADING EDGE FLAPS NR 1/2 DID NOT INDICATE CORRECT POSITION FOR FLAP SETTING. AIRCRAFT WAS DIVERTED TO IND. MAINTENANCE PERSONNEL CLEANED DE-ICING FLUID RESIDUE FROM NR 1/5 LE FLAP CANNON PLUGS AND SWITCH ASSY. TESTED SWITFeb 27, 1995 · N776AT · Boeing 7272Q8SDR DL76L950444Sensor · failedDURING CLIMB-OUT, HAD SLAT ASSYMETRY LIGHT VISUAL CHECK OK SLATS APPEARED UP. ACCOMPLISHED ABNORMAL PROCEDURES, RETURNED JFK. THE SLAT LIGHT CAME ON AT FLAPS 1 DEGREE TO FULL UP. INTERROGATED PSEU, HAD FAULT CODE 280, LEFT OUTER SLAT NR 5 SENSOR. REPLACED Jan 30, 1995 · N178DN · Boeing 767332SDR USAA950016Prox Switch · failedBWI - FLT 1795 - FLIGHT EN ROUTE, WHEN FWD AMBER LEADING EDGE FLAPS TRANSIT LIGHT ILLUMINATED. THE NR 5 SLAT FULL EXTEND LIGHT ALSO ON. FLIGHT DIVERTED TO BWI WHERE LANDING WAS WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED NR 5 LEADING EDGE SLAT PROXIMITYJan 10, 1995 · N502AU · Boeing 7373B7SDR AWXA9500005Sensor · inoperativePHX-ABQ - FLT 200 - THE NR 2 INTRANSIT SLAT LIGHT REMAINED ILLUMINATED. FLAPS WERE SELECTED ON APPROACH WITH NR 2 DEVICE ILLUMINATED ON OVERHEAD PANEL. ALL OTHER DEVICES INDICATED FLAPS WERE FULLY EXTENDED. EMERGENCY WAS DECLARED FOR THE NR 2 SLAT NOT FULLYJan 5, 1995 · N179AW · Boeing 737277
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