Com-Jet, LLC.
Service difficulty reports · 34
Reports filed under designator DM4R by a repair station, 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 submitter_designator = 'DM4R' AND submitter_type_code = 'B' ORDER BY difficulty_date DESC, sdr_id 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 submitter_designator = 'DM4R' AND submitter_type_code = 'B' ORDER BY difficulty_date DESC, sdr_id 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 98ZZZX2705Side Brace · crackedA CRACK WAS FOUND AT THE SHANK END APPROXIMATELY 90 DEGREES FROM THE MLG. THE CRACK WAS 1 INCH LONG AND .015 INCH DEEP. FIXED SIDE BRACE ATTACHES TO THE MAIN LANDING GEAR SIDE BRACE.SDR 98ZZZX2205Diaphragm · deterioratedAUXILIARY HYDRAULIC POWER SURGE DAMPER ACCUMULATOR TANK HAD NEW DIAPHRAGM INSTALLED IN NOVEMBER, 1997. UNIT INSTALLED IN ACFT FOR 15 DAYS AND REMOVED FOR LEAKAGE. FOUND DIAPHRAGM DETERIORATED AND TORN ON LIP. SUBMITTER STATED THIS IS THE 6TH FAILURE OF THISSDR 98ZZZX2026Diaphragm · tornAUXILIARY HYDRAULIC POWER SURGE DAMPER ACCUMULATOR TANK HAD NEW DIAPHRAGM INSTALLED AT REPAIR. DIAPHRAGM FAILED (TORN) AFTER 3 MONTHS TIME IN SERVICE. DIAPHRAGM MANUFACTURED BY KAPCO. THIS IS THE 5TH IDENTIFIED FAILURE BY THIS REPAIR STATION.SDR 98ZZZX1381End Barrel · crackedEND BARREL (CAP) HAS TWO LARGE CRACKS (APPROXIMATELY 1.50 INCH LONG) PER INDICATOR TO THREADS. CRACKS ARE 180 DEGREES FROM EACH OTHER. END BARREL WAS MANUFACTURED BY AV-MAT FAA-PMA PART.SDR 98ZZZX844Valve Body · crackedHAD SEVERAL INSTANCES WHERE FLIGHT CONTROL VALVE BODY WAS CRACKED. CRACK IS LOCATED IN THREAD RELIEF AREA.SDR 98ZZZX311Support Assy · crackedINSPECTION FOUND THE AILERON CONTROL REVERSION ASSEMBLY HAS A CRACK ON BOTH SIDES OF THE SUPPORT ASSEMBLY.SDR 98ZZZX287Support Assy · crackedTHE AILERON CONTROL REVERSION ASSEMBLY HAS A CRACK ON BOTH SIDES OF THE SUPPORT ASSEMBLIES.SDR 97ZZZX4773Bearing · failedFAN BEARING FAILED (BALL BEARING). BEARING CAME APART. ALSO, CAUSED DAMAGE TO END BELL 11840-1. 712.42 HOURS SINCE NEW PART WAS INSTALLED.SDR 97ZZZX4772Bearing · failedFAN BALL BEARING STARTING TO COME APART. PARTIAL FAILURE OF BEARING. 712.42 HOURS SINCE NEW PART INSTALLED.SDR 97ZZZX4771Manifold · chafedINSPECTION FOUND MANIFOLD ASSY OF DAMPER ASSY CHAFED DUE TO HOSE RUBBING ON OUTSIDE DIAMETER OF COMPENSATOR LOCATION. REPEAT DEFECT.SDR 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 97ZZZX3907Resistor · failedRESISTORS FAILED CAUSING CSD LOAD CONTROLLER TO FAIL AND MAINTAIN PROPER CYCLES. THIS IS THE SECOND TYPE OF THIS FAILURE. ORIGINAL PARTS CAME FROM MANUFACTURER.SDR 97ZZZX3906Resistor · failedRESISTORS FAILED CAUSING CSD LOAD CONTROLLER TO FAIL AND MAINTAIN PROPER CYCLES. THIS IS THE SECOND TYPE OF THIS FAILURE. ORIGINAL PARTS CAME FROM MANUFACTURER.SDR 97ZZZX3497Diaphragm · tornNEW BLADDER DIAPHRAGM INSTALLED IN ACCUMULATOR JULY, 1996. UNIT FAILED JULY, 1997. BLADDER TORN AND LEAKING. THIRD TYPE FAILURE SEEN WITH THIS PART NUMBERED BLADDER. BLADDER PMA PART FROM KAPCO (DOUGLAS LICENSEE).SDR 97ZZZX1324Battery Pack · shortedBATTERY PACK HAS SEVERAL SHORTED CELLS. BATTERY PACK WAS REPLACED NEW FROM MANUFACTURER ON 1-30-97. EMERGENCY LIGHTS CAME ON WITH SWITCH OFF.SDR 97ZZZX1205Battery Pack · meltedBATTERY PACK MELTED AND DETERIORATED. BATTERY PACK WAS REPLACED NEW FROM MANUFACTURER 1-29-97. APPROXIMATELY 30 DAYS IN SERVICE.SDR 97ZZZX1165Diaphragm · tornAUXILIARY HYD POWER SURGE DAMPER ACCUMULATOR TANK HAD NEW DIAPHRAGM INSTALLED AT OVERHAUL. DIAPHRAGM FAILED (TORN) AFTER 2 MONTHS TIME IN SERVICE. DIAPHRAGM SEPARATES HYD FLUID AND AIR. THIS PART WAS OBTAINED FROM THE MANUFACTURER.SDR 97ZZZX1164Diaphragm · tornAUXILIARY HYD POWER SURGE DAMPER ACCUMULATOR TANK HAD NEW DIAPHRAGM INSTALLED AT OVERHAUL. DIAPHRAGM FAILED (TORN) AFTER 5 MONTHS TIME IN SERVICE. 2ND REPORT. THIS PART WAS OBTAINED FROM THE MANUFACTURER.SDR 97ZZZX1132Spring · missingUPON DISASSEMBLY OF ELEVATOR POWER CONTROL UNIT, IT WAS NOTED THAT THE CENTERING SPRING WAS MISSING. (NOT INSTALLED AT LAST REPAIR.) CUSTOMER REPORTED 'AIRPLANE PORPOISES IN A AND B MODE".SDR 97ZZZX840Barrel · brokenFLAP ACTUATOR CYLINDER BARREL RECEIVED BROKEN AT CRANK MOUNT BORE. SUSPECT CAUSE IS METAL FATIGUE DUE TO CORROSION.SDR 97ZZZX582Valve Body · crackedSEQUENCE VALVE BODY HAS FATIGUE CRACK NEAR PORT VC AND LEAKS WITH 2,500 PSI APPLIED. BODY IS ALUMINUM. CASTING UNIT HAS A TOTAL TIME OF 84,556.19 BUT UNKNOWN HOURS ON ACTUAL BODY.SDR 96ZZZX6135End Cap · blew offGAS END CAP BLEW OFF THE ASSY. DURING TEST, ON INSPECTION, FOUND PREVIOUS INTERNAL CRACK IN THE CIRCUMFERENCE ON THE I/D OF CAP. TEST BEING PERFORMED WAS PRELIMINARY BEFORE DISASSEMBLY.SDR 96ZZZX5451Bellcrank · brokenBELLCRANK ARRIVED BROKEN. SUSPECT CAUSE WAS STRESS AND CORROSION.SDR 96ZZZX5466Bearing · failedAVIONIC COOLING FAN BEARING FAILED AFTER 1,571.22 HRS OF OPERATION. INNER BALL RACE DISTORTED AND BALLS MISSING. FLIGHT ATTENDANTS REPORTED SMOKE IN CABIN DUE TO FAN FAILURE.SDR 97ZZZX811Bearing · failedFAN BEARING FAILED. BEARING INNER RACE IS BLUE FROM HEAT. BEARING WILL NOT TURN. BEARING TT SINCE INSTALLATION 2127 HRS. FAN IS FOR AVIONIC COOLING AND CARGO HEAT. BEARING INSTALLED NEW.SDR 96ZZZX5321Input Gear · bindingFUEL SHUTOFF ACTUATOR ASSY WOULD STALL WITH A SLIGHT INWARD PRESSURE ON OUTPUT SHAFT. RECENTLY OVERHAULED BY ANOTHER REPAIR STATION (6-20-96). IMPROPER SHIMMING OF ARMATURE ASSY CAUSED INPUT GEAR TO RUB AGAINST ARMATURE SHAFT, ALSO, EXCESSIVE PLAY AT OUTPUT SDR 96ZZZX4631End Bell · wornFAN END BELL BEARING BORE WORN OVERSIZE AFTER 545.5 HOURS OF OPERATION.SDR 96ZZZX4714Body · corrosionCONTROL SURFACE DAMPER'S ALUMINUM BODY HAS EXCESSIVE CORROSION IN THE INSIDE DIAMETER.SDR 96ZZZX4164Bearing · failedBEARING COMPLETELY DESTROYED. BEARING INSTALLED NEW AND FAILED AFTER 289.80 HOURS OF OPERATION. FAN TRIPPED CIRCUIT BREAKER, IMPELLER OF FAN RUBS ON FAN HOUSING.SDR 96ZZZX4128Diaphragm · rupturedINSTALLED NEW DIAPHRAGM AND ACCUMULATOR INSTALLED IN AIRCRAFT 6-5-61. ACCUMULATOR REMOVED 7-25-96 FOR INTERNAL FAILURE. FOUND DIAPHRAGM RUPTURED AFTER 225 HOURS TIME IN SERVICE.SDR 96ZZZX3387Seal Ring · failedTEN EACH NEW SEALS WERE RECEIVED FROM THE AUTHORIZED DISTRIBUTOR FOR THE MANUFACTURER. THIS SEAL IS USED IN SKYDROL HYDRAULIC FLUID, BUT THE NEW SEALS FAILED UPON INSTALLATION (WOULD NOT SEAL). THE SEALS SWELL WHEN INTRODUCED TO SKYDROL FLUID. SUBMITTER STASDR 96ZZZX2504Crank Assy · brokenFLAP CRANK ASSY IS BROKEN ON LUG AREA WHERE BOLT P/N NAS1105-23 GOES THROUGH. SUSPECT CAUSE, METAL FATIGUE AND CORROSION.SDR 96ZZZX1632Crank · brokenCRANK RECIEVED WITH BROKEN LINK MOUNT. SUSPECT DUE TO HIGH STRESS IN THIS AREA AS WELL AS POSSIBLE METAL FATIGUE.SDR 96ZZZX1631Bearing · brokenBEARING ON FLAP ACTUATOR CYLINDER BARREL RECEIVED BROKEN. SUSPECT DUE TO HIGH STRESS IN THIS AREA AS WELL AS POSSIBLE METAL FATIGUE.
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