JASC 2740
Service difficulty reports · 2,128
Reports filed under 2740 · Stabilizer Control 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 = '2740' 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 = '2740' 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 98ZZZX4403Spring · brokenFAILED AUXILIARY BRAKE TEST DUE TO BROKEN SPRINGS. REPLACED SPRINGS WITH P/N 69-77855-2 SPRINGS.SDR 98ZZZX4366Spring · brokenFAILED AUXILIARY BRAKE TEST DUE TO BROKEN SPRINGS. REPLACED SPRINGS WITH P/N 69-77855-2.SDR 98ZZZX4402Spring · brokenFAILED AUXILIARY BRAKE TEST DUE TO BROKEN SPRINGS. REPLACED WITH SPRINGS, P/N 69-77855-2.SDR 98ZZZX4391Spring · brokenFAILED AUXILIARY BRAKE TEST DUE TO BROKEN SPRINGS. REPLACED WITH SPRINGS, P/N 69-77855-2.SDR 98ZZZX4414Spring · brokenSPRING FAILED FUNCTION TEST. P/N 69-77855-1 SPRINGS WERE FOUND BROKEN IN PIECES. REPALCED P/N 69-077855-1 SPRINGS WITH P/N 69-77855-2 SPRINGS.SDR AU980328Torque Tube · corroded(AUS) STABILATOR TORQUE TUBE CORRODED. INSPECTION FOUND RUST ON BOTH THE INTERNAL AND EXTERNAL SURFACES.SDR CA980325038Trunnion Bolt · loose(CAN) PILOT COMPLAINED OF VIBRATIONS IN THE TAIL WHEN PITCH TRIMMING AT HIGHER SPEEDS. INSPECTION FOUND THAT THE STABILIZER HAD MORE THAN ACCEPTABLE PLAY. THE MAIN PIVOT INNER AND OUTER BOLTS WERE FOUND FAR BELOW THE SPECIFIED TORQUE AS OUTLINED IN THE FAIRCSDR TWAA9803705Motor · wornSTL - FLT 263 - PRIMARY LONGITUDINAL TRIM FAILED. FLIGHT RETURNED TO STL. REPLACED PRIMARY TRIM MOTOR. (X)SDR 98ZZZX1277Spring · brokenSTABILIZER TRIM GEARBOX SPRINGS P/N 69-77855-1 ARE BROKEN. SUSPECT IMPROPER HEAT TREAT OR INCORRECT ALLOY. SUBMITTER RECOMMENDATIONS: SPRINGS P/N 69-77855-1 SHOULD BE REPLACED WITH P/N 69-77855-2 SPRINGS.SDR CALA9800234Trim Motor · crackedTHE HYDRAULIC SYSTEM 3 ELEVATOR OFF LIGHT ILLUMINATED WHILE EN ROUTE TO EWR. APPROPRIATE CHECKLISTS WERE FOLLOWED AND BOTH PUMPS WERE SHUTOFF. THE HYDRAULIC FLUID DEPLETED TO ZERO VERY SLOWLY AND THE AIRCRAFT LANDED AT EWR WITHOUT INCIDENT. MAINTENANCE FOUNSDR 98ZZZX980Control Arm · wrong partUNABLE TO RIG TRIM TAB TRAVEL TO SPECIFICATION. FOUND TRIM TAB CONTROL ARM WRONG. OVERALL LENGTH OF PART IS TOO SHORT. BEND OF TUBE IS IN WRONG PLACE. ANGLE OF TUBE TO PLATE IS WRONG. WITNESS HOLE FOR ROD END IS MISSING. SUBMITTER SUGGESTED DIAGRAM OF COSDR CA980305012Chain · seized(CAN) TRIMMABLE HORIZONTAL STABILIZER CABLE ASSY CHAIN AT ACTUATOR FOUND WITH SEVERAL LINKS KINKED. CABLE CHAIN REPLACED. AIRCRAFT TT: 20,340 HOURS.SDR DLM88980225Relay · inoperativeON T/O STABILIZER TRIM WENT TO FULL NOSE DOWN. REPLACED NOSE DOWN TRIM RELAY R20-13.SDR 9800799105Circuit Breaker · trippedPRIMARY TRIM FAILED AFTER TAKEOFF. SECONDARY SYSTEM OPERATED NORMALLY. FLIGHT WAS RETURNED TO DTW AND LANDED WITHOUT INCIDENT. MAINTENANCE FOUND A PHASE CIRCUIT BREAKER POPPED BEHIND FORWARD FLIGHT ATTENDANT SEAT. RESET CIRCUIT BREAKER, OPERATIONAL CHECK OSDR QXEA9800019Control Panel · malfunctionON DEPARTURE, BOTH HORIZIONTAL STABILIZER FLIGHT CONTROL CHANNEL CAUTION LIGHTS ILLUMINATED. ACCOMPLISHED THE EMERGENCY CHECKLIST, REVERTING THE STABILIZER SYSTEM TO MANUAL. ENCOUNTERED NO FURTHER PROBLEMS EN ROUTE, AND ACCOMPLISHED AN UNEVENTFUL LANDING AT SDR 98ZZZX561Spring · brokenINSPECTION FOUND STABILIZER TRIM GEARBOX WITH FRACTURED SPRINGS. SUSPECT IMPROPER HEAT TREATING OR INCORRECT ALLOYS IN THE SPRINGS. SUBMITTER RECOMMENDATIONS: SPRINGS PN 69-77855-1 SHOULD BE REPLACED WITH PN 69-77855-2 SPRINGS PER BOEING TELEX AEO-AUB-94-01SDR TAOA129707Chain · failedFLT 6140 - LGA-BOS - THE STABILIZER TRIM FAILED. A LOUD BANG WAS HEARD WHEN THE TRIM WAS ELECTRICALLY OPERATED. BICYCLE CHAIN THAT RUNS FROM THE MANUAL CONTROL WHEEL DOWN TO THE CABLE SPOOL HAD SEPARATED. A CLOSER INSPECTION REVEALED THE MASTER LINK ON THE SDR COMA9760229Hstcu · malfunctionedSTAB CHANNEL 1 DISENGAGED DURING APPROACH. REPLACED THE HSTCU.SDR 97ZZZX5095Actuator Control · failedAIRCRAFT PRIMARY PITCH TRIM INOPERABLE. IF NOSE UP OR DOWN WAS SELECTED, PITCH TRIM WOULD NOT MOVE AND PITCH TRIM FAIL ANNUNCIATOR WOULD COME ON. TROUBLESHOT DOWN TO ACTUATOR CONTROL UNIT. ORDERED AND INSTALLED REPLACEMENT UNIT. TURNED AIRCRAFT POWER ON, PSDR 97ZZZX4649Acme Nut · failedACME NUT THREADS STRIPPED MAKING LONGITUDINAL TRIM MECHANISM DRIVE UNIT TOTALLY INOPERABLE. THIS NUT DRIVES THE JACKSCEW UP OR DOWN. THE INSIDE DIAMETER IS TOTALLY STRIPPED WHICH WILL NOT ALLOW ANY MOVEMENT OF THE JACKSCREW. THERE ARE TWO JACKSCREWS PER AIRSDR 97ZZZX4808Actuator · malfunctionedPILOTS NOTED AUTOPILOT WOULD NOT TRIM AIRCRAFT. PILOT DE-SELECTED AUTOPILOT AND TRIM FUNCTIONED CORRECTLY IN MANUAL MODE 'NORMAL' POSITION, HOWEVER, WOULD NOT FUNCTION WHEN 'EMERGENCY' TRIM WAS SELECTED. ON THE GROUND, BOTH 'NORMAL' AND 'EMERGENCY' POSITIONSSDR 9718622297Stab Trim · out of positionDURING TAKEOFF POWER APPLICATION, FLAP CONFIGURATION HORN SOUNDED. TAKEOFF WAS ABORTED WITHOUT INCIDENT. RETRIMMED STABILIZER. SECOND TAKEOFF WAS OK.SDR DL73K971594Bearings · wornON TAKEOFF/CLIMBOUT, STAB TRIM NOISY MAKING CLICKING NOISE. FLIGHT DIVERTED TO BOS. FOUND STAB TRIM WHEEL BEARING WORN ON RT SIDE OF PEDESTAL. REPLACED BEARINGS AND CROSS SHAFT, CHECKED NORMAL.SDR 97ZZZX5082Controller · malfunctionedUNIT REPORTED TO CAUSE AN INTERMITTENT TRIM FAIL ANNUNCIATOR LIGHT.SDR DL73E971259Bearing · failedSTAB TRIM JAMMED IN FLT AT 2 DEGS NOSE DOWN TRIM. FOUND CROSSOVER SHAFT AND BEARINGS SEVERLY DAMAGED. REPLACED SHAFT, BEARINGS AND STAB TRIM SPROCKET PER M/M, CKS NML.SDR CA970624024Switch · failed(CAN) AFTER TAKEOFF THE STABILIZER TRIM AND MACH TRIM CAUTION MESSAGE ON EICAS. UNABLE TO RESET. FIRST OFFICER'S STABILIZER DISCONNECT SWITCH FOUND FAULTY AND REPLACED.SDR DL76L971114Control Module · leakingC HYDRAULIC SYSTEM LEAKING IN CRUISE. QTY DROPPED TO 0.32. DURING GEAR/FLAP EXTENSION QTY DROPPED TO 0.08. CREW DECLARED EMERGENCY. MX FOUND RT STAB TRIM CONTROL MODULE LEAKING. REPLACED RIGHT STAB TRIM CONTROL MODULE. OPS CHECK GOOD.SDR 97UAL900388Cruise Trim Sw · failedSTABILIZER TRIM SWITCH ERRATIC. UNCOMMANDED ACTUATION IN THE FORWARD DIRECTION (NOSE DOWN TRIM). *S/D* REPLACED CRUISE TRIM SWITCH AND SYSTEM CHECKED OK.SDR ABXA9700953Bellcrank · corrodedDURING C-CHECK, FOUND THE LONGITUDINAL TRIM CABLE BELLCRANK ARM (P/N 5914177-503) CORRODED. REMOVED AND REPLACED ARM IAW DC9 MM 20-10-0 AND 20-16-0.SDR CA970529011Hstcu · failed(CAN) AFTER TAKEOFF, STABILIZER TRIM AND MACH TRIM CAUTION MESSAGE ON. TRIED RESET, NO GOOD. HORIZONTAL STABILIZER TRIM CONTROL UNIT (HSTCU) REPLACED.SDR CA970506016Spring · worn(CAN) STABILATOR BUNGEE SPRING WORN CORRODED AND WEAK. WIRE DIAMETER OF LOOP FLATTENED WHERE LOOP CONTACT IS MADE WITH HOOKING HOLE. SPRING WIRE REDUCED BY 50 PERCENT. LOOP AT OTHER END SHOWS SIGNS OF HARDENING AND SURFACE CORROSION. REPLACED.SDR USAAD97070Motor · failedCLT/STL - FLT 1287 - PRIMARY LONGITUDINAL TRIM STOPPED WORKING. SUITCASE HANDLES WERE ALSO INOPERATIVE. RETURNED TO FIELD. REPLACED PRIMARY CONTROL MOTOR. (X)SDR 97FDEA00219Gearbox · malfunctionedSTABILIZER OUT OF TRIM LIGHT ILLUMINATED. INITIALLY CRUISE TRIM INOPERATIVE. ELECTRIC TRIM OPERATED SLUGGISHLY. MAIN ELECTRIC TRIM OPERATED NORMAL, UNTIL PLACING TRIM TO APPROXIMATELY 5 UNITS UP. MAIN ELECTRIC TRIM THEN SLUGGISH AND CRUISE TRIM ILLUMINATEDSDR AALA970663Hyd Motor · defectiveSFO - FLT 39 - AFTER TAKEOFF SFO DURING CLIMB-OUT, NR 3 HYDRAULIC SYSTEM QTY BEGAN TO DECREASE FOLLOWED BY ELEVATOR OFF LIGHT ILLUMINATING. ACCOMPLISHED ABNORMAL PROCEDURES AND AIRCRAFT RETURNED TO SFO, LANDING WITHOUT INCIDENT. REPLACED HYDRAULIC HORIZONTALSDR 97ZZZX3967Indicator · marked wrongIND - FLT 9602 - 1/2 TO 3/4 TO V, AIRCRAFT NOSE SEEMED TO LIFT, PILOT TRIMMED STABILIZER, TAKEOFF WARNING WENT OFF, ABORTED TAKEOFF. MAIN TIRE FUSE PLUG BLOWN. INSPECTED FIRST OFFICER'S STABILIZER TRIM INDICATOR GREEN BAND (PAINTED) AND CAPTAIN'S INDICATOR GSDR 97FDEA00198Trim Motor · crackedHYD SYS 3 FAIL ALERT DISPLAYED ON CLIMBOUT, TOTAL LOSS OF HYD QTY, SYSTEM AUTO SHUTDOWN. FOUND HORIZONTAL STAB TRIM MOTOR CRACKED VERTICALLY. REMOVED AND REPLACED HORIZONTAL STAB TRIM MOTOR M1-16. REMOVED AND REPLACED BOTH PUMPS AND FILTERS PER M/M.SDR CA970407018Control Unit · required reset(CAN) HORIZONTAL STABILIZER TRIM CHANNEL #2 FAULT. PILOT COULD NOT SELECT NOSE DOWN TRIM. RESET HORIZONTAL STABILIZER TRIM CONTROL UNIT BY EXERCISING THE TWO HORIZONTAL STABILIZER TRIM SWITCHES. BITE TEST SHOWED NO FAILURE.SDR 97FDEA00138Bolt · looseDURING FLIGHT CONTROL CHECK, ELEVATOR WOULD ONLY MOVE HALFWAY FORWARD. HYDRAULIC PRESSURE WAS GOOD. FOUND RIGHT HAND STAB TRIM CONTROL ROD END ATTACH BOLT MIGRATED OUT, JAMMING POWER PACK. RESECURED BOLT. OPS CHECKS OKAY.SDR USAABB97023Pos Transmitter · failedBWI - FL 26, AFTER TAKEOFF, CREW REPORTED LOSING MANUAL TRIM. AUTOPILOT WAS SELECTED TO DETERMINE ITS CONTROL CAPABILITY. AUTOPILOT COULD NOT TRIM UP OR DOWN. EICAS MESSAGE 'AUTOPILOT' ILLUMINATED. FLIGHT RETURNED TO BWI AND LANDED WITH NO FURTHER INCIDENTSDR TSAA9753035Bushing · wornDURING HEAVY MAINTENANCE VISIT, FOUND HORIZONTAL STABILIZER JACKSCREW ACTUATOR SUPPORT FITTING RT BORE BUSHING WORN. REPAIRED PER ECO2784. AIRCRAFT RETURNED TO SERVICE. (M)SDR COMA9760050Motor Contl Unit · failedSTABILIZER TRIM FAILED ON BOTH CHANNELS. REPLACED THE STABILIZER MOTOR CONTROL UNIT.SDR 97ZZZX1207Switch · failedFOUND TRIM MASTER SWITCH PREVIOUSLY REPAIRED WITH GLUE. REPLACED SWITCH, NEW SWITCH FELL APART AT FWD SEAM AT FIRST OPS CHECK. SECOND NEW SWITCH DID THE SAME. BACK PART OF SWITCH FELL INTO CENTER CONSOLE, SHORTED OUT ON A/F STRUCTURE AND COULD NOT BE RETRIESDR COMA9760048Actuator · failedSTABILIZER TRIM FAIL ON CHANNELS 1 AND 2. REPLACED THE HORIZONTAL STABILIZER TRIM ACTUATOR.SDR DLM88970346Relay · failedSTAB TRIM INOP AT 250 KTS. REPLACED R20-15/R20-16 PRI TRIM RLYS-STAB TRIM SW-STAB TRIM CBL SW. ALL AS PRECAUTION DUE TO HISTORY. CKS GOOD.SDR RRXA97052Sprocket Assy · failedLONGITUDINAL TRIM STUCK FULL AFT POSITION. REPLACED DRIVE SPROCKET ASSEMBLY AND OPS CHECK GOOD IAW DC-8 M/M 27-40-0.SDR CA970226060Relay · failed(CAN) MAIN TRIM NOT FUNCTIONING. AIRCRAFT LANDED OK. FOUND MAIN TRIM RELAY HAD FAILED.SDR 97ZZZX872Bolt · corrodedWHILE DISASSEMBLING THE STABILATOR TORQUE TUBE, SUBMITTER FOUND BOTH (2 EACH) CLOSE TOLERANCE BOLTS VERY CORRODED. SUBMITTER BELIEVES THESE SHOULD BE REPLACED BY AGE OF 30 YEARS. DISASSEMBLED ANOTHER STABILATOR HORN AND FOUND THE SAME CONDITION.SDR 97ZZZX870Bolt · corrodedWHILE DISASSEMBLING THE STABILATOR TORQUE TUBE, FOUND BOTH (2 EACH) CLOSE TOLERANCE BOLTS VERY CORRODED. SUBMITTER BELIEVES THESE BOLTS SHOULD BE REPLACED BY AGE OF 30 YEARS.SDR GTIA9700165Trim Switch · failedDTW - FLT 174 - AFTER LANDING, ALT TRIM RUNAWAY. RAN PRIMARY TRIM IN OPPOSITE DIRECTION AND RUNAWAY STOPPED. REMOVED AND REPLACED HORIZ STABILIZER ALT TRIM SWITCH IAW DC-9 MM 27-40-9, OPS CHECK GOOD. (M)SDR COMA9760021Mcu · inoperativeSTAB TRIM CHANNELS 1 AND 2 DISENGAGED INFLIGHT. REPLACED MCU AND HSTA.
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