JASC 3421

Service difficulty reports · 1,143

Reports filed under 3421 · Attitude Gyro and 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 = '3421'
  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 AWXA9500421Standby Horizon · malfunctionedPHX\MCI - FLT 592 - ONE HOUR OUT OF PHX, THE STANDBY HORIZON FLAGGED AND THE CIRCUIT BREAKER TRIPPED. DUE TO MEL RESTRICTIONS, AIRCRAFT RETURNED TO PHX AND LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE POWER SUPPLY FAILED. REPLACED POWER SUPPLY AND INDICAJul 9, 1995 · N2FOR · Boeing 737275SDR 95ZZZX3455Power Supply · failedPHX\MCI - FLT 592 - ONE HOUR OUT OF PHX, THE STANDBY HORIZON FLAGGED AND THE CIRCUIT BREAKER TRIPPED. DUE TO MEL RESTRICTIONS, AIRCRAFT RETURNED TO PHX AND LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE POWER SUPPLY FAILED. REPLACED POWER SUPPLY AND INDICAJul 9, 1995 · N2FOR · Boeing 737275SDR SIMA951791Eadi · failedORD - FLT 4042 - ON TAXI OUT THE FLIGHT OFFICERS ADI DISPLAY WENT BLANK AND SMOKED UP THE COCKPIT. AIRCRAFT RETURNED TO THE GATE. MAINTENANCE REPLACED THE NR 2 EADI. AIRCRAFT RETURNED TO SERVICE. (M)Jun 28, 1995 · N354AT · Aerosp ATR42300SDR HEEA955251Gyro · defectiveGYRO PRECESSES IN PITCH, SLOW TO ERECT, LIGHTS INOPERATIVE.Jun 27, 1995 · N967MB · Bolkms BO105SSDR HEEA955237Gyro · defectiveV GYRO CAUSES ADI TO OSCILLATE.Jun 26, 1995 · N1546K · Skrsky S76ASDR MWEA95214Adi · flaggedPILOT REPORTS ON CLIMBOUT OF MKE THE ATTITUDE FLAG ON CAPTAINS ADI APPEARED. CYCLED CIRCUIT BREAKERS, FLAG STILL IN VIEW, RETURNED TO MKE. MAINTENANCE REPLACED CAPTAIN'S ADI. OPS CHECK GOOD, RETURNED A/C TO SERVICE.Jun 11, 1995 · N501ME · Doug DC932SDR 95ZZZX2932Gyro · defectivePILOT COULD NOT ADJUST THE GYRO WITH THE CAGING KNOB. REMOVED AND REPLACED UNIT AND SENT IN FOR REPAIR.Jun 5, 1995 · N5074R · Hughes 369DSDR VTZA95183Adi · failedIAD-SYR - FLT NR 6387 - DURING CLIMB-OUT RETURNED TO IAD DUE TO THE RADAR ONLY PAINTS GROUND ON RIGHT SIDE. AIRCRAFT LANDED AT IAD WITH NO FURTHER INCIDENTS. MAINTENANCE REPLACED THE CAPTAINS ADI. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (May 25, 1995 · N472UE · Bag JETSTM3201SDR DHL95805003Vertical Gyro · malfunctionedRADAR STABILIZATION FAILED ON TAKEOFF. REMOVED AND REPLACED NR 2 VERTICAL GYRO. OPS CHECK OK.May 25, 1995 · N805DH · Doug DC873FSDR HEEA955031Gyro · defectiveCO-PILOT GYRO RATCHETY.May 19, 1995 · N1546K · Skrsky S76ASDR HEEA955020Indicator · flag sticksATT. FLAG STICKING. TIME SINCE REPAIR 412:10.May 18, 1995 · N2148K · Bell 412SDR HEEA954999Gyro · defectiveSLOW TO SCROLL AFTER START UP.May 12, 1995 · N1545X · Skrsky S76ASDR 95ZZZX3110Indicator · stuckADI STUCK IN PITCH AND RED FLAG 'ATT'. THIS IS SAME PROBLEM AS BEFORE.May 9, 1995 · N75LV · Beech B200SDR COM20367Attitude Gyro · defectiveCOPILOTS ATTITUDE INDICATOR CIRCUIT BREAKER TRIPPED, WILL NOT RESET. REPLACED COPILOTS ATTITUDE INDICATOR.Apr 30, 1995 · N702M · Swrngn SA227ACSDR HEEA954861Indicator · defectiveRATE OF TURN FLAG WILL NOT PULL SOMETIMES. TIME SINCE REPAIR 91:55.Apr 24, 1995 · N22342 · Skrsky S76ASDR HEEA954803Connector Plate · defectiveNOT EQUIPPED WITH A STANDBY ATTITUDE INDICATOR ON/OFF/TEST SWITCH.Apr 19, 1995 · N8045T · Bell 214STSDR 96ZZZX1043Indicator · defectiveTHE LEFT RIGHT KNOB WORKS IN THE OPPOSITE DIRECTION MORE THAN TWICE AS FAR LEFT AS RIGHT. UP/DOWN IMPROPER LIMITS.Apr 15, 1995SDR DHL95741003Vertical Gyro · inoperativeON TAKE OFF, F/O ADI FAILED INTERMITTANTLY AT BANK ANGLES GREATER THAN 4 DEGREES. DIVERTED TO CVG, LANDING WITHOUT INCIDENT. REMOVED AND REPLACED NR 2 VERTICAL GYRO PER DHL 727 MM 34-22-21, ALL INICATIONS NORMAL.Apr 14, 1995 · N741DH · Boeing 7272Q9SDR 95ZZZW625Vertical Gyro · inopON TAKEOFF, FLIGHT OFFICER ADI FAILED INTERMITTENTLY AT BANK GREATER THAN 4 DEGREE. DIVERTED TO CVG. LANDING WITHOUT INCIDENT. REMOVED AND REPLACED NR 2 VERTICAL GYRO, PER DHL 727 MM 34-22-21. ALL INDICATIONS NORMAL.Apr 14, 1995 · N741DH · Boeing 7272Q9SDR HEEA954742Indicator · defectiveHORIZONTAL POINTER WILL NOT GO FULL SCALE.Apr 10, 1995 · N2298Z · Bell 412SDR HEEA954732Artificial Horiz · fails testFAILS TEST 3.2, 4.2, 4.4, 4.7, 4.8, 4.9 AND 8.1 TO 13.4 ON SST.Apr 10, 1995 · N5196T · Bolkms BK117B1SDR HEEA954721Gyro · malfunctionPILOT AND CO-PILOT HSI OSCILLATING EXCESSIVELY.Apr 10, 1995 · N5435V · Skrsky S76ASDR 9505639952Vert Gyro · malfunctionedFIRST OFFICER'S GYRO FLAG WAS IN VIEW DURING TAKEOFF ROLL. ABORTED TAKEOFF AT APPROXIMATELY 60 KNOTS AND RETURNED TO GATE. REPLACED THE NR 2 VERTICAL GYRO. OPERATIONAL CHECK OK. AIRCRAFT RETURNED TO SERVICE.Apr 9, 1995 · N916RW · Doug DC931SDR IXXA199544Vertical Gyro · failedBQN - ON DEPARTURE, THE FIRST OFFICER'S ADI TUMBLED. THE AIRCRAFT RETURNED TO BQN FOR MAINTENANCE. MAINTENANCE REPLACED THE NR 2 VG, AND RETURNED THE AIRCRAFT TO SERVICE. (X)Apr 4, 1995 · N784AL · Doug DC863FSDR HEEA954584Indicator · defectiveATTITUDE INDICATOR WON'T STAY ERECT.Mar 23, 1995 · N60951 · Snias AS350B2SDR HEEA954570Gyro · precessingGYRO PRECESSING.Mar 22, 1995 · N1546K · Skrsky S76ASDR HEEA954564Gyro · precessingGYRO PRECESSING.Mar 22, 1995 · N1546K · Skrsky S76ASDR ABXA9500200Display Unit · failedDURING PREFLIGHT, FOUND THE CAPTAINS DU NR 2 DISPLAYING THE SG FLAG AND EMITTING A BURNING ODOR. NOT VERIFIED. REMOVED AND REPLACED THE CAPTAINS NR 2 DU AS A PRECAUTIONARY MEASURE. SYSTEMS OPS CHECKED GOOD IAW SUPP MM CHAPTER 34.Mar 15, 1995 · N824AX · Doug DC863SDR 9503769953Vert Gyro · malfunctionedCAPTAIN'S ATTITUDE INDICATOR GYRO FLAG APPEARED DURING CLIMB-OUT. PITCH WENT TO 15 DEGREES AND LOCKED. FLIGHT RETURNED TO GTF AND LANDED WITHOUT INCIDENT. REPLACED CAPTAIN'S VERTICAL GYRO AND ADI. OPERATIONAL CHECK OK. AIRCRAFT RETURNED TO SERVICE.Mar 9, 1995 · N918RW · Doug DC931SDR COM11808Eadi · failedDURING DESCENT CREW NOTED BURNING ELECTRICAL SMELL IN COCKPIT. COPILOT'S EADI FAILED. REPLACED COPILOT'S EADI.Mar 7, 1995 · N268CA · Emb EMB120RTSDR 9503509937Attitude Ind · malfunctionedCAPTAIN'S VERTICAL GYRO FAILED ON ROTATION. FLIGHT RETURNED TO MSP AND LANDED WITHOUT INCIDENT. REPLACED THE NR 1 VERTICAL GYRO WITH NO HELP. REPLACED NR 1 ATTITUDE DIRECTIONAL INDICATOR. OPERATIONAL CHECK OK. AIRCRAFT RETURNED TO SERVICE.Mar 5, 1995 · N908H · Doug DC931SDR HEEA954463Indicator · failedINOPERATIVE IN PITCH MODE.Mar 1, 1995 · N22342 · Skrsky S76ASDR HEEA954427Gyro · defectiveVALID FLAG ON HSI DOES NOT PULL. PART RECEIVED INSTALLED ON AIRCRAFT ON 2-1-95. (PREVIOUS AIRCRAFT NUMBER WAS VH-LHQ)Feb 27, 1995 · N8045T · Bell 214STSDR 9503169882Vertical Gyro · malfunctionedCAPTAIN'S VERTICAL GYRO FAILED DURING TAKEOFF ROLL AT DTW. ABORTED TAKEOFF AND RETURNED TO GATE. REPLACED CAPTAIN'S VERTICAL GYRO. OPERATIONAL CHECK OK. AIRCRAFT RETURNED TO SERVICE.Feb 26, 1995 · N670MC · Doug DC951SDR LOVA950224Gyro · malfunctionHEADING FLAG FAILS TO CANCEL ON EADI DISPLAY. REPLACED DIRECTIONAL GYRO WITH SERVICEABLE UNIT. OPS CHECKS OKAY. (X)Feb 24, 1995 · N230LF · Bell 230SDR HAL95022Adi · failedFLT NR 172 - HNL - CAPTAINS ADI GYRO FLAG ON ADI STUCK ON 12 DEGREES NOSE-UP. MADE AIR TURN BACK TO HNL. REMOVED AND REPLACED THE CAPTAINS ADI AND THE GROUND OPERATIONAL CHECK WAS OK. (W)Feb 18, 1995 · N420EA · Doug DC951SDR MALA954301Attitude · failedFLT 3467 - UPON DEPARTURE FROM DTW, THE ARTIFICIAL HORIZON TUMBLED DURING ROTATION. THE AIRCRAFT RETURNED TO DTW. MAINTENANCE REPLACED THE NR 1 ATTITUDE GYRO. SYSTEM OPERATED SATISFACTORILY. (Z)Feb 9, 1995 · N428MA · Swrngn SA227ACSDR TSAA9534026Adi · failedFLT 201 - HNL-LIH - FIRST OFFICER ATTITUDE FAILED JUST AFTER TAKEOFF. RETURN TO HNL. REMOVED AND REPLACED NR 2 ADI. GROUND OPS CHECK OK. AIRCRAFT RETURNED TO SERVICE. (Z)Jan 29, 1995 · N805AL · Boeing 7372M6CSDR 9501849754Vertical Gyro · malfunctionedCAPTAIN'S VERTICAL GYRO FAILED AFTER TAKEOFF. FLIGHT RETURNED TO DTW AND LANDED WITHOUT INCIDENT. REPLACED THE NR 1 VERTICAL GYRO AND ADI. OPERATIONAL CHECK OK. AIRCRAFT RETURNED TO SERVICE.Jan 27, 1995 · N754NW · Doug DC941SDR 95ZZZX867Vertical Gyro · failedATL/MIA - FLT 595 - RETURNED TO ATL DUE TO FIRST OFFICER'S GYRO WENT INOP ON CLIMB-OUT. REMOVE AND REPLACE NR 2 GYRO AND REMOVE AND REPLACE INSTRUMENT AMP PER MM 34-00, OPS CHECK NORMAL.Jan 16, 1995 · N523MD · Doug DC932SDR 95ZZZX866Vertical Gyro · failedATL/BNA - FLT 558 - RETURNED TO ATL DUE TO FIRST OFFICER'S ADI FAILING DURING CLIMB-OUT. REMOVED AND REPLACED NR 2 VERTICAL GYRO. OPS CHECK GOOD PER MM 34.Jan 15, 1995 · N523MD · Doug DC932SDR VTZA95011Standby Adi · failureIAD-ROC - FLT 6452 - DURING CRUISE AT 1355 HOURS ON 1-9-95, RETURNED TO IAD DUE TO THE STANDBY ADI FAILING IN-FLIGHT. AIRCRAFT LANDED WITH NO FURTHER INCIDENTS. MAINTENANCE REPLACED STANDBY ADI. (X)Jan 9, 1995 · N495UE · Bag JETSTM3201SDR 95ZZZX693Base Assy · plating peelPLATING IS BLISTERING AND PEELING ON THE INSIDE AND OUTSIDE OF BASE ASSEMBLY. LOOSE PLATING CAN POTENTIALLY CAUSE CIRCUIT SHORTS AND INTERFERE WITH GYRO AXIS FUNCTIONS.Jan 1, 1995
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