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 GTIA010658Gyro · faultyFLL - FLT 41 - AUTO PILOT JERKS UP AND DOWN IN PITCH MODE (UNCOMFORTABLE) IN EITHER DFGC 1 OR 2 WHEN VERTICAL GYRO SW SET AT RIGHT ON AUXILIARY, AUTO PILOT VERY SMOOTH BOTH 1 AND 2 DFGC. REMOVED AND REPLACED NR 2 VERTICAL GYRO, OPS CHECK NORMAL IAW MM 34-23-0Jul 15, 2001 · N814NK · Doug DC983SDR GTIA010565Gyro · defectiveFLT 304 - ACY - VERTICAL SPEED WHEEL DOES NOT AGREE WITH VERTICAL SPEED IN DESCENT AND CLIMB. AT 500 IN CLIMB ON VERT SPEED WHEEL, A/C CLIMBS 2000 FPM, 500 FPM DESCENDS AIRCRAFT AS MUCH AS 2500 FPM. REMOVED AND REPLACED NR 2 VG. OPS CHECK GOOD IAW DC-9 MM 3Jun 24, 2001 · N133NK · Doug DC932SDR HEEA073698Indicator · malfunctionedSLOW TO ERECT. IN SHOP FOR REPAIR.Jun 19, 2001 · N21497 · Bell 206L3SDR 2001F00073Indicator · failedLIM - FLT 641 - DURING FLIGHT, WHILE AIRCRAFT TURNED, STANDBY HORIZON TILTED 22 DEGREES RIGHT BANK. AFTER TURN, THE INDICATOR DID NOT RECOVER, IT REMAINED IN THAT POSITION, AND NO FLAG APPEARED. AIRCRAFT RETURNED TO LIMA AIRPORT. AFTER LANDING, MAINTENANCE Jun 16, 2001 · N951LR · Airbus A320233SDR RRXA010051Gyro · failedF/OS GYRO FAILED ON CLIMB IN BOTH NORMAL AND AUX POSITION. REPLACED EXISTING HARNESS IAW 34-2-2 WITH NEW WIRE F/R50-119 FORWARD OF FO'S PANEL BACK TO R50-61 RADIO RACK SHELF NR 3 OPERATIONAL CK I/A/W DC8 M.M CHAP 34-25-0 (CK GOOD)Jun 13, 2001 · N792FT · Doug DC873FSDR RRXA011046Harness · defectiveF/O`S GYRO FAILED ON CLIMB IN BOTH NORMAL AND AUX POSITION. REPLACED EXISTING HARNESS IAW 34-2-2 WITH NEW WIRE F/R50-119 FORWARD OF F/O'S PANEL BACK TO R50-61 RADIO RACK SHELF NR 3 OPERATIONAL CK IAW DC8 MM CHAP 34-25-0 (CK GOOD).Jun 13, 2001 · N792FT · Doug DC873FSDR HEEA073437Gyro · malfunctionedTUMBLES WHEN POWER APPLIED.Jun 11, 2001 · N972AE · Snias AS350BSDR 2001FA0000102Gyro · failedGYRO TUMBLED IN FLIGHT AND WOULD NOT RE-ERECT. MAINTENANCE TROUBLESHOOTING REVEALED NO DEFECTS WITH INSTRUMENT AIR SYSTEM. GYRO WAS REPLACED WITH A SERVICEABLE OVERHAULED UNIT. SYSTEM RETESTED AND REPLACEMENT GYRO FUNCTIONS NORMALLY. AIRCRAFT AND SYSTEM HJun 4, 2001 · N9453Z · Cessna 172RSDR 2001F00065Gyro · malfunctionedFLT 96 - HNL-KOA - WHILE CLIMBING THROUGH 6000 FEET, FLIGHT CREW REPORTED A PROBLEM WITH THE FIRST OFFICER'S ADI TO MAINTENANCE CONTROL. MAINTENANCE CONTROL ADVISED THE CREW TO RETURN TO HNL FOR REPAIRS. LANDING WAS ACCOMPLISHED WITH NO FURTHER PROBLEMS. MAMay 24, 2001 · N816AL · Boeing 7372X6CSDR DHL2001807016Gyro · faultyAUTOPILOT ELEVATOR CONTROL JERKS ON CLIMBOUT AND IN LEVEL FLIGHT. AUTOPILOT ELEVATOR SERVO INDICATOR SHOWS CORRESPONDING MOVEMENT. THIS IS A REPEAT ITEM. COULD NOT DUPLICATE AUTOPILOT JERKS. SWAPPED TO AUX VERTICAL GYRO FOR TROUBLESHOOTING. CAPTAINS NORMAMay 19, 2001 · N807DH · Doug DC873SDR DHL2001801005Gyro · erraticCAPT ADI ERRATIC INTERMITTENT +/- 5 DEG PITCH WITH GYRO FLAG AND BOW TIE ANNUNCIATOR ILLUMINATED. REMOVED AND REPLACED NR 1 VERTICAL GYRO. OPS CHECKS GOOD IAW DC-8 MM 34-25-1.May 15, 2001 · N801DH · Doug DC873FSDR TI1R001467Gyro · tumblesATTITUDE GYRO, TUMBLING, REMOVED AND REPLACED.May 12, 2001 · N117MK · Bolkms BK117B2SDR DHL2001803005Indicator · faultyAUTOPILOT WHEN IN HEADING SELECT MODE DIVERGES IN ROLL. FOUND ON STEP 7A & 7B AT ROLL COMPUTER BITE CHECK, MM 22-12-0 PG 101-107, FAILED FULL SCALE RIGHT STOP WHEN SELECTING CAPT''S NAVIGATION INFO VIA NAV SELECT BUTTON. AUTOPILOT CONTROL PANEL ROLL COMPUTER BMay 9, 2001 · N803DH · Doug DC873FSDR KBMA88744Indicator · precessesUNIT PRECESSING BEYOND LIMIT. REMOVED AND INSTALLED SERVICEABLE UNIT AS REQUIRED.May 3, 2001 · N1188P · Snias AS350BASDR 20010518CW001Gyro · contaminatedDURING ANNUAL INSPECTION, FOUND LIQUID IN WINDOW OF GYRO, DISCONNECTED LINE TO HAVE WATER FLOW OUT, REMOVED INSTRUMENT. OPENDED CASE AND FOUND LONG-TERM CORROSION ON ALL INTERNAL PARTS. REPLACED WITH OVERHAULED INSTRUMENT. NO OTHER INSTRUMENTS CONTAINED WATApr 30, 2001 · N9514M · Mooney M20FSDR HEEA072661Indicator · malfunctionedADI TUMBLES WHEN POWER IS APPLIED.Apr 18, 2001 · N2261D · Bell 412SDR HEEA072660Indicator · malfunctionedRT FLAG STICKS TO THE RIGHT.Apr 18, 2001 · N2261D · Bell 412SDR HEEA072587Gyro · failedWOULD NOT FAST ERECT. REPLACED WITH SERVICEABLE PART.Apr 11, 2001 · N40466 · Snias AS350B2SDR HEEA072509Indicator · inoperativePILOT REPORTED INDICATOR INOPERATIVE. REPLACED WITH SERVICEABLE PART.Apr 11, 2001 · N5019F · Bell 206L1SDR HEEA072508Indicator · precessesPILOT REPORTS THAT AFTER INSTRUMENT SLOWLY STARTED TO PRECESS THE CARD WAS CORRECTED AND INSTRUMENT FROZE UP IN WINGS LEVEL AND NOSE ON HORIZON POSITION. REPLACED WITH SERVICEABLE PART.Apr 11, 2001 · N6160Y · Bell 206L3SDR HEEA072507Indicator · precessesPRECESSES. REPLACED WITH SERVICEABLE PART.Apr 11, 2001 · N45RP · Bell 206L1SDR HEEA072506Indicator · failedROLLING, WILL NOT HOLD A LEVEL ALTITUDE. REPLACED WITH SERVICEABLE PART.Apr 11, 2001 · N8591X · Bell 206L3SDR HEEA072468Indicator · malfunctionedROLLING AND WILL NOT HOLD A LEVEL ATTITUDE. REPLACED WITH SERVICEABLE ATTITUDE INDICATOR.Apr 10, 2001 · N8591X · Bell 206L3SDR HEEA072467Indicator · inaccurateINDICATES 7-8 DEGREE LEFT TURN IN LEVEL FLIGHT. REPLACED WITH SERVICEABLE ATTITUDE INDICATOR.Apr 10, 2001 · N4835 · Bell 206L3SDR HEEA072466Indicator · precessesEXCESSIVE PRECESSING. REPLACED WITH SERVICEABLE ATTITUDE INDICATOR.Apr 10, 2001 · N45RP · Bell 206L1SDR HEEA072452Connector · looseCONNECTOR PLUG RECEPTACLE LOOSE IN HOUSING. REPLACED WITH SERVICEABLE PART.Apr 10, 2001 · Bell 412SDR TI1R001428Light · inoperativeATTITUDE GYRO, INTERNAL LIGHTING, INOPERATIVE. REMOVED AND REPLACED.Apr 9, 2001 · N117MK · Bolkms BK117B2SDR HEEA071982Indicator · inoperativeTURN NEEDLE ON ATTITUDE INDICATOR INOPERATIVE.Apr 5, 2001 · N3893L · Bell 412SDR 20010515AP007Indicator · failedAFTER A FEW FLIGHTS WITH THE RECENTLY INSTALLED ADI IN THE PILOTS POSITION, THE GLIDESLOPE INDICATOR FAILED IN THE CENTER POSITION (INDICATING ON GLIDE PATH). INDICATOR REMAINED PARKED IN THIS POSITION FOR THE DURATION OF THE FLIGHT. REMOVED AND REPLACED UNIApr 4, 2001 · N1NASDR TI1R001427Gyro · tumblesATTITUDE GYRO, TUMBLES, REF AEC RMA R303539. REMOVED AND REPLACED.Apr 3, 2001 · N40751 · Snias AS350B2SDR TI1R001423Gyro · erraticATTITUDE GYRO, SPINS ERRATICALLY. REMOVED AND REPLACED.Mar 25, 2001 · N1140H · Bolkms BK117A3SDR UPS01235272Gyro · failedINSPECTION TYPE:N/A (BTB) DURING TAKEOFF INITIAL ACCELERATION F/O''S EADI BLANKED. REPLACED NR 2 VERT GYRO PER BMM 34-22-21. NOTE: THIS SAME NR 2 VG WAS REPLACED ON INB FLT FOR A 5 DEGREE ROLL. THE S/N REMOVED FROM BTB IS 81144914, THE PIREP DEBRIEF, INDICAMar 13, 2001 · N938UP · Boeing 727173CSDR AALA20010556Display · failedDTW - FLT 494 - EN ROUTE ORD-DTW, DETECTED SMOKE BEHIND CAPTAINS ATTITUDE INDICATOR. LANDED DTW WITHOUT FURTHER INCIDENT. REPLACED CAPTAINS SYMBOL GENERATOR AND CAPTAINS PRIMARY FLIGHT DISPLAY. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)Mar 10, 2001 · N455AA · Doug DC982SDR DL733010379Indicator · failedSTANDBY ATTITUDE INDICATOR FAILED ENROUTE. REPLACED STBY ATT INDICATOR. OPS NMLMar 7, 2001 · N312WA · Boeing 737347SDR SWAA010562Indicator · failedDIVERSION - STANDBY ATTITUDE GYRO BEGAN MAKING NOISE AND STARTED TILTING. CYCLED C/B AND GYRO TUMBLED AND WOULD NOT ERECT. GYRO FLAG IN VIEW. REMOVED AND REPLACED STANDBY HORIZON PER MM.Feb 25, 2001 · N740SW · Boeing 7377H4SDR KBMA88818Gyro · inoperativePRECESSING AND FLAG INDICATOR INOPERATIVE.Feb 8, 2001 · N270SH · Snias AS350BASDR GLBA2001031Gyro · inoperativeRETURN TO BLOCK - NR 1 VG FAILED. REMOVED AND REPLACED VERTICAL GYRO.Feb 6, 2001 · N247GL · Beech 1900DSDR GLBA2001021Gyro · inoperativeRETURN TO BLOCK. PILOT EADI SHOWED EXTREME PITCH VARIATIONS. REMOVED AND REPLACED NR 1 VERTICAL GYRO, OPS CHECKED SYSTEM GOOD.Feb 2, 2001 · N228GL · Beech 1900DSDR SWIA972286Display · failedJUST AFTER ROTATION FIRST OFFICERS EADI FAILED. RETURNED TO SEA. INSTALLED SERVICEABLE RIGHT EADI. OPS CHECKS GOOD 34-23-01. S/N ON: 893, S/N OFF: 2674.Jan 18, 2001 · N130G · Emb EMB120RTSDR KBMA974369Gyro · malfunctionedNOT PRECESSING FLAG STITCHING.Jan 15, 2001 · N53SH · Snias AS350B2SDR 20010215CW002Connector · corrodedEXCESSIVE CORROSION BUILDS UP ON PINS OF CONNECTOR, SPECIFICALLY PINS N AND P, WHICH RESULTS IN FLAGGING.Jan 9, 2001SDR KBMA99409Indicator · precessesPRECESSING AT 30 DEGREES.Jan 9, 2001 · N53SH · Snias AS350B2SDR KMBA99408Gyro · precessesPRECESSING 30 DEGREES.Jan 9, 2001 · N53SH · Snias AS350B2SDR 20010131CW001Gyro · precessesPRECESSING 30 DEGREES.Jan 9, 2001 · N53SH · Snias AS350B2SDR RRXA010003Adi · malfunctionedCAPTAINS GYRO AND FLIGHT DIRECTOR FLAGS IN VIEW WHEN A/C PITCHES UP OR DOWN 3 DEG AND HORIZON FREEZES IN POSITION. REMOVED AND REPLACED CAPT''S ADI, OPS CKS GOOD IAW UAL MM 41-20 -22.Jan 8, 2001 · N8085U · Doug DC871FSDR 20010227CW004Gyro · defectivePILOT REPORTS ELECT STANDBY GYRO HORZ, INOPERATIVE. REMOVED INSTRUMENT, CAN HEAR LOOSE PARTS MOVING AROUND INSIDE INSTRUMENT. REMOVED AND RETURNED TO MFG.Dec 29, 2000 · N117HS · Beech 58TCSDR DHL2000724008Gyro · failedATTITUDE FLAG ON TAKEOFF ROLL. R&R CAPT'S ADI & VERTICAL GYRO.Dec 14, 2000 · N724DH · Boeing 727228SDR DHL2000724007Gyro · failedCAPT'S & AUX V.G.S INOP. REMOVED AND REPLACED CAPT'S & AUX V.G.'SDec 14, 2000 · N724DH · Boeing 727228SDR 20010122CW013Indicator · failedMRR / DTW HAD AN ELECTRICAL FIRE, POPPED COMPASS CIRCUIT BREAKER ON APPROACH INTO DTW. REMOVED AND REPLACED HSI INDICATOR AND DIRECTIONAL GYRO. OPS CHECKS GOOD. SENT UNITS IN FOR CHECK AND DETAILED REPORT.Dec 11, 2000 · N4079Y · Piper PA31350SDR TI1R001395Gyro · inoperativeATTITUDE INDICATOR WOULD NOT COME ON. GYRO NOT SPOOLING UP. REMOVED AND REPLACED.Nov 21, 2000 · N4UV · Bell 230
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