JASC 3417

Service difficulty reports · 1,213

Reports filed under 3417 · Air Data Computer, 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 = '3417'
  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 96ZZZX4360Adc · malfunctionedMNL - FLT 876 - NR 1 AND NR 2 GPS SHOW EXCESSIVE WINDS, 120 AT 215 KNOTS, TAS SHOWS 123 KNOTS AT ALL ATTITUDES. TAS INPUT FAILURE INDICATED ON NR 1 GPS. BOTH GPS UNRELIABLE. RETURNED TO MNL. REPLACED NPU NR 1 AND ADC NR 1 AND NR 2. OPS CHECK PER MM 34-12-Aug 9, 1996 · N623DH · Boeing 727264SDR 96FDEA01235Adc · failedAFTER GEAR RETRACTION CAPTAIN RED SPEED TAPE APPEARED RENDERING SPEED INFO INOP. SWITCHED ADC INSTRUMENT TO SYS, TWO SPEED INFO RECOVERED. NR 1 AND 2 AUTO THROTTLE TRIPPED, NR 2 ONLY RESET, BOTH LOWER ACCESS DOOR SHOW AMBER WITH CHIME. CABIN RATE OF CLIMB AJul 10, 1996 · N403FE · Airbus A310203SDR HEEA967486Computer · inoperativeAIR DATA COMPUTER INOPERATIVE. PART IS BURNT. TIME SINCE REPAIR 15:45.Jun 24, 1996 · N8045T · Bell 214STSDR HEEA967464Computer · inoperativeAIR DATA COMPUTER INOPERATIVE.Jun 21, 1996 · N8045T · Bell 214STSDR DHL96741003Adc · malfunctionedAT TAKEOFF, FIRST OFFICERS AIRSPEED, ALTITUDE AND RATE OF CLIMB INDICATORS FLAGGED. FOUND AIR DATA NR 2 COMPUTER CIRCUIT BREAKER POPPED AND WOULD NO RESET. FOUND METAL SHAVINGS ON BENCH PLUG. CLEANED WITH CONTACT CLEANER AND BLEW OUT BENCH PLUG WITH NITROGEJun 17, 1996 · N741DH · Boeing 7272Q9SDR CALA9600773Adc · inoperativeTHE CAPTAIN'S ALTIMETER, COMPASS FLAG IN HSI, OFF FLAG IN ALT SELECT WINDOW, AUTO PILOT, MACH TRIM, GPWS, MODE-C AND CAPTAIN'S DME INSTRUMENTATION ALL WENT INOPERATIVE INTERMITTENTLY WHILE EN ROUTE. THE USABILITY OF THE INSTRUMENTATION WOULD RETURN EVERY 10 Jun 10, 1996 · N12235 · Boeing 737222SDR HALA9672Adc · malfunctionedFLT 128 - HNL - ON TAKEOFF FLIGHT OFFICERS ALTIMETER AN ALTITUDE ALERT HAD RED FLAGS. CAPTAINS VSI/TCAS SCREEN WENT BLANK. REPLACED FLIGHT OFFICERS ELECTRIC ALTIMETER AND NR 2 ADC. OPS AND LEAK CHECK OK. REPLACED CAPTAINS VSI/TCAS INDICATOR. TEST AND LEAKJun 6, 1996 · Doug DC951SDR DL73E961345Air Data Comp · inoperativeON TAKEOFF ROLL, F/O'S AIRSPEED VSI AND ALTIMETER OFF FLAGS CAME ON, RETURNED TO THE GATE. C/A INSTALLED NEW NR 2 ADC, ALL INDICATIONS ARE NORMAL.Jun 2, 1996 · N379DL · Boeing 737247SDR VTZA96201Adc · failedFLT NR 6485 - IAD-JFK - DURING CRUISE MADE A UNSCHEDULED LANDING BECAUSE OF A NR 1 ADC FAILED. AIRCRAFT LANDED WITH NO FURTHER INCIDENTS. MX REPLACED NR 1 ADC. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (M)May 23, 1996 · N318UE · Jetair JETSTM4101SDR USAASB96085Adc · failedFLT 357 - MCO - ON ROTATION LOST AUTO-THROTTLE AND FLIGHT OFFICERS AIRSPEED WENT TO ZERO. ALSO, FLIGHT OFFICERS ALTITUDE STOPPED AT 1500 FEET, WE WERE CLIMBING TO 10'000. MX REPLACED NR 2 ADC GROUND TEST OK. SYSTEM NOT CERTIFIED FOR CAT IIIA. (M)May 12, 1996 · N371US · Boeing 7373B7SDR VTZA96180Adc · failedFLT NR 6563 - JFK-IAD - ABORTED THE TAKEOFF DUE TO THE NR 1 AIR DATA COMPUTER FAILING ON THE TAKEOFF ROLL. AIRCRAFT RETURNED TO GATE WITH NO FURTHER INCIDENTS. MAINTENANCE REPLACED THE AIR DATA COMPUTER. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVMay 3, 1996 · N307UE · Jetair JETSTM4101SDR USAAF96038Adc · malfunctionedSTL - FL 2129 - AT FL 350, CREW NOTICED THE THRUST WAS BEING REDUCED BY THE AUTOPILOT, THE CAPT'S AIRSPEED WAS DEGRADING DOWNWARD WHILE THE F/O'S WAS GOING TO REDLINE. THE CAPT TOOK CONTROL OF THE A/C, FLYING MANUALLY, AND STARTED A DESCENT. AT FL 300 THE A/Apr 28, 1996 · N881US · Fokker F28MK0100SDR 9609301143Air Data Comp · failedDURING TAKEOFF ROLL, THE CAPTAIN'S AIRSPEED READ 20 KNOTS HIGHER THAN THE FIRST OFFICER'S AIRSPEED INDICATOR. ABORTED TAKEOFF AND RETURED TO THE GATE. DURING TAXI THE CAPTAIN'S ALTIMETER READ 120 FEET HIGHER THAN THE FIRST OFFICER'S ALTIMETER. REPLACED THE Apr 28, 1996 · N133JC · Doug DC1040SDR 96ZZZM808Air Data Comp · failedJFK - DURING TAKEOFF THE CENTRAL AIR DATA COMPUTER FAILED. AIRCRAFT RETURNED TO JFK. REMOVED AND REPLACED THE CADC, MFG P/N HG280D80. SELF TEST AND LEAK CHECK NORMAL. (M)Apr 4, 1996 · N905TW · Doug DC982SDR VTZA96141Air Data Com · failedFLT NR 6150 - IAD-EWR - DURING TAKEOFF, BOTH TIMES RETURNED TO IAD DUE TO NR 2 ALTIMETER FLAGGED AND NR 2 EADI SHOWED FLAG. AIRCRAFT RETURNED TO GATE AT IAD WITH NO FURTHER INCIDENTS. MAINTENANCE RERACKED BOTH AHARS COMPUTERS AND REPLACED ADC. OPS CHECK OK.Mar 30, 1996 · N312UE · Jetair JETSTM4101SDR USAAD96031Adc · failedDAY - FLT 282 - ON DESCENT INTO IND, CAPTAIN'S ALTIMETER AND AIR DATA COMPUTER WERE ERRATIC. DUE TO WEATHER AT IND, FLIGHT DIVERTED TO DAY AND LANDED WITH NO FURTHER INCIDENT. MAINTENANCE REPLACED THE NR 1 AIR DATA COMPUTER. (X)Mar 19, 1996 · N939VJ · Doug DC931SDR VTZA96123Adc · failedFLT NR 6595 - IAD-LGA - DURING CLIMB-OUT, RETURNED IAD, AIR DATA COMPUTER INDICATIONS BEING INTERMITTENT. AIRCRAFT LANDED AT IAD WITH NO FURTHER INCIDENT. MAINTENANCE REPLACED BOTH AIR DATA COMPUTERS. AIRCRAFT RELEASED AND APPROVED FOR RETURN TO SERVICE. (Mar 17, 1996 · N308UE · Jetair JETSTM4101SDR DHL96706003Air Data Comp · malfunctionedBOTH TRANSPONDERS FAILED THROUGH 6,000 FEET. CYCLED TRANSPONDERS, PULLED AND RESET C/B. REMOVED AND REPLACED AIR DATA COMPUTER FOR NO ALT REPORTING. REMOVED AND REPLACED NR 2 ATC DUE TO WEAK REPLY AND LEAK CHECKED PER 34-11-0.Mar 10, 1996 · N706DH · Boeing 72722CSDR VTZA96103Air Data Comp · failedFLT NR 6532 - IAD-ORF - DURING CLIMB, AIRCRAFT RETURNED TO IAD DUE TO LEFT AIR DATA COMPUTER FAILED ON ROTATION. AIRCRAFT RETURNED TO GATE WITH NO FURTHER INCIDENTS. MAINTENANCE REPLACED AIR DATA COMPUTER, OPS CHECK OK. AIRCRAFT WAS RELEASED AND APPROVED FOMar 6, 1996 · N323UE · Jetair JETSTM4101SDR 96ZZZX1456Air Data Comp · defectivePIT - FLT 4083 - ON CLIMB-OUT, CREW WAS ALERTED BY A CAS MESSAGE ADC 1 FAIL. CREW ELECTED TO RETURN TO FIELD, AIRCRAFT LANDED WITHOUT FURTHER INCIDENT. PIT MAINTENANCE AIR DATA COMPUTER IAW MM 34-11-01. GROUND CHECKED GOOD, AIRCRAFT RETURNED TO SERVICE.Feb 26, 1996 · N442JS · Dorner DO328100SDR DHL97807001Adc · failedON CLIMB AIR DATA COMPUTER INOP. REMOVED AND REPLACED AIR DATA COMPUTER PER MM 34-11-0, OPS CHECKS NORMAL. PERFORMED PITOT STATIC CHECK PER 34-11-0, ALL CHECKS GOOD. ALL TEST EQUIPMENT REMOVED.Feb 19, 1996 · N807DH · Doug DC873FSDR VTZA96078Dadc · failedFLT NR 6276 - IAD-EWR - DURING CRUISE, RETURNED TO IAD DUE TO THE LOSS OF RELIABLE AHRS INFORMATION ON BOTH SIDES. AIRCRAFT RETURNED TO IAD WITH NO FURTHER INCIDENTS. MAINTENANCE REPLACED THE DIGITAL AIR DATA COMPUTER. AIRCRAFT WAS RELEASED AND APPROVED FORFeb 14, 1996 · N308UE · Jetair JETSTM4101SDR DL72S960340Cadc · failedAFTER TAKEOFF, TCAS DISPLAYED ALL FAILED AND MAIN TCAS SCREEN SHOWED NR 1 XPONDER DATA BUS AND ALT DATA. CENTER ADVISED THEY RECEIVED SQUAWK, BUT NO ALT READOUT. AT FL 310 LEVEL OFF AND CRUISE MACH .80, A/C BEGAN MILD DUTCH ROLL. ROLL CEASED WHEN SPEED SLOWFeb 14, 1996 · N402DA · Boeing 727232SDR 9603551157Computer · failedDURING TAKEOFF, CAPTAIN'S AIRSPEED INDICATOR FROZE AT 100 KNOTS WHILE THE FIRST OFFICER'S INDICATOR READ 60 KNOTS. TAKEOFF WAS ABORTED. THE CAPTAIN'S AIR DATA COMPUTER WAS SWAPPED WITH THE NR 3 COMPUTER AND AIRCRAFT RETURNED TO SERVICE.Feb 12, 1996 · N157US · Doug DC1040SDR Y2PA96004Air Data Comp · malfunctionedORD - IN FLIGHT AT HIGH ALTITUDE AND HIGH SPEEDS HORIZ STABILIZER RUNS FULL FORWARD (NOSE DOWN TRIM). CREW MUST PLACE FORWARD PRESSURE ON YOKE TO MAINTAIN LEVEL FLIGHT. FOUND PITOT STATIC LEAK IN DRAIN BEHIND CADC COMPUTER TEST FLEW AIRCRAFT. MACH TRIM COMPJan 31, 1996 · N196US · Doug DC915FSDR RAIA960155Air Data Comp · malfunctionedSTL - FLT NR 7003 - CAPTAIN VERTICAL SPEED INDICATOR INTERMITTENTLY DISPLAYS THE BOOT UP SCREEN. MAINTENANCE RERACKED NR 1 AIR DATA COMPUTER, OPERATIONAL CHECK GOOD. (M)Jan 30, 1996 · N723TE · Aerosp ATR72202SDR 96UAL900078Adc · inoperativeON TAKEOFF, CAPTAIN'S AIRSPEED INDICATOR AND BOTH FLIGHT MANAGEMENT COMPUTERS INOP. NUMBER ONE AIR DATA COMPUTER SHOWED BARO REFERENCE NUMBER TWO, OUT OF LIMIT IN FAULT MEMORY. REPLACED NUMBER ONE AIR DATA COMPUTER, CHECKS OK.Jan 29, 1996 · N310UA · Boeing 737322SDR VTZA96057Air Data · failedFLT NR 6211 - IAD-PVD - DURING CRUISE, RETURNED TO IAD DUE TO THE AIRSPEED INDICATION SPLIT OF 100 KNOTS, WITH THE CAPTAINS AIRSPEED INDICATING 30 KNOTS OVER THE OVERSPEED WARNING. AIRCRFT LANDED AT IAD WITH NO FURTHER INCIDENTS. MAINTENANCE REPLACED THE NR Jan 3, 1996 · N305UE · Jetair JETSTM4101SDR DLM88960003Cada · malfunctionedAT V1, F/O AIRSPEED AND ALT INDICATORS FAILED AND AT LIFT OFF OVERSPEED WARNING CAME ON WITH F/S FAILURE ON BOTH SIDES. GOING TO ALT ON F/O SIDE DID NOT CHANGE OR CADC BOTH ON 1. FLIGHT RETURNED TO EWR. INSTRUMENTS RETURNED TO NORMAL AFTER LANDING. REPLACEJan 1, 1996 · N925DL · Doug MD88SDR VTZA96049Dadc Relay · failedIAD/JFK - FLT 6485 - DURING CLIMB AT 1400 HOURS ON 12-25-95, LT ALTIMETER FAILED. AIRCRAFT RETURNED TO GATE WITH NO FURTHER INCIDENTS. MAINTENANCE REPLACED DADC SWITCHING RELAY, OPS CHECK OK. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (X)Dec 25, 1995 · N323UE · Jetair JETSTM4101SDR 9520003232Air Data Comp · malfunctionedWHILE CLIMBING THROUGH 15,000 FEET MSL, RECEIVED F/CTL ADR DISAGREE AND F/CTL ALTN LAW (PROT LOST) MESSAGES. FOLLOWED COCKPIT OPERATING MANUAL PROCEDURES AND CONTINUED ON TO ORIGINAL DESTINATION WHERE AN EMERGENCY WAS DECLARED AND AN UNEVENTFUL LANDING ACCOMPNov 30, 1995 · N332NW · Airbus A320211SDR 9517889938Adc · failedDURING CLIMB, THE ALTIMETER AND BOTH THE NR 1 AND NR 2 ATC TRANSPONDERS FAILED AND THE AUTOPILOT WOULD NOT ENGAGE. THE AIRCRAFT RETURNED TO DTW AND LANDED WITHOUT INCIDENT. REPLACED THE AIR DATA COMPUTER AND THE NR 2 ATC TRANSPONDER, OPERATIONAL CHECK GOOD.Nov 12, 1995 · N1798U · Doug DC931SDR COMA9531185Adc · defectiveTHE LEFT AIRSPEED INDICATOR FAILED. REPLACED THE AIR DATA COMPUTER.Oct 30, 1995 · N356CA · Saab SF340ASDR CAL950996Air Data Comp · inoperativeCLE - FLT 1255 - WHILE CRUISING AT FL 220 EN ROUTE FROM BDL TO CLE AND WITH AUTOPILOT ENGAGED IN 'B' MODE, THE AIRCRAFT MADE AN ABRUPT BANK TO THE RIGHT. THE AUTOPILOT WAS DISCONNECTED AND THE AIRCRAFT FLEW NORMAL FOR REMAINDER OF FLIGHT. THE 'B' AUTOPILOT WOct 30, 1995 · N14241 · Boeing 7372C0SDR EIAA9551Cadc · failedJFK - LOG PAGE: F 02023 - NR 1 CADC FAILED, ALL ASSOCIATED FLAGS IN VIEW, RETURNED TO JFK. REPLACED NR 1 CADC PER MM 34-12-01 AND ACCOMPLISHED PITOT/STATIC CHECK OF SYSTEM PER MM 34-11-00. OPER TEST OK. (X)Oct 20, 1995 · N473EV · Boeing 747121SDR C2XA95CL118Air Data Comp · failedFLT NR 3595 - EWR-EWR - NR 2 AIR DATA COMPUTER FAILED IN FLIGHT. MAINTENANCE REMOVED AND REPLACED NR 2 AIR DATA COMPUTER IAW ATR JIC 34-11-81. OPERATIONAL AND LEAK CHECKS GOOD. (M)Oct 1, 1995 · N14830 · Aerosp ATR42320SDR COMA9560560Adc · defectiveEFIS COMP MESSAGE DURING FLIGHT. REPLACED THE NR 1 AIR DATA COMPUTER.Sep 27, 1995 · N912CA · Cndair CL6002B19SDR USAA951045Air Data Comp · failedPIT - FLT NR 0497 - AFTER TAKEOFF FROM PIT, FLIGHT OFFICERS AIRSPEED, ALTIMETER, AND RATE OF CLIMB INDICATORS FAILED. FLIGHT RETURNED TO PIT AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED THE NR 2 ADC. OPERATIONS CHECKED OK. (M)Sep 26, 1995 · N407US · Boeing 737401SDR 95UAL900148Adc · intermittantATC FAULT LIGHT AND MESSAGE DISPLAYED. RETURNED TO LAX. FIRST OFFICER'S INSTRUMENTS RETURNED TO NORMAL IN DESCENT, BUT RUDDER RATIO AND AILERON LOCKOUT MESSAGES REMAINED. REPLACED NR TWO AIR DATA COMPUTER AND PERFORMED HI-RANGE LEAK CHECK. CHANGED CIRCUIT BSep 22, 1995 · N613UA · Boeing 767222SDR DLL16953682Air Data Comp · failedMACH TRIM CH 2 FAILED. MACH FEEL CH 2 FAIL. OVSPD CLACKER SOUNDED FOR NO REASON. COULD NOT SILENCE. HAD TO PULL CIRCUIT BREAKER. F/O A/S-ALT-RAD ALT AND VSI OFF FLAGS ALL SIMULTANEOUSLY APPEARED WITH INSTR COMP. ALT SCOREBOARD PRESENT. NO WIND READ OUT Sep 12, 1995 · N760DH · Lkheed 10113853SDR COMA9531150Air Data Comp · inoperativeCAPTAINS AIRSPEED INDICATOR WAS SPINNING ON TAKEOFF ROLL. REMOVED AND REPLACED AIR DATA COMPUTER WITH SERVICEABLE.Sep 7, 1995 · N359CA · Saab SF340ASDR AALA951575Adc · defectiveORD - FLT NR 2085 - AFTER TAKEOFF ORD DURING CLIMB-OUT, LOST LEFT EFIS AIRSPEED INDICATION FOLLOWED BY NR 1 FLIGHT AUGMENTATION PANEL FAULTS. UNABLE TO RESET AND AIRCRAFT RETURNED TO ORD, LANDING WITHOUT INCIDENT. REPLACED NR 1 AIR DATA COMPUTER. SYSTEM GROSep 3, 1995 · N1451N · Fokker F28MK0100SDR 9512509853Air Data Comp · malfunctionedCAPTAIN'S ALTIMETER RED FLAG APPEARED ON TAKEOFF ROLL, ABORTED TAKEOFF AT 80 KNOTS. AIRCRAFT RETURNED TO THE GATE. REPLACED AIR DATA COMPUTER, OPERATIONAL CHECK OK. AIRCRAFT RETURNED TO SERVICE.Aug 11, 1995 · N762NC · Doug DC951SDR COM31126Air Data Comp · defectiveINFLIGHT LOST FLIGHT DIRECTOR BARS, RECEIVED RED FLIGHT DIRECTOR WARNING. REPLACED THE AIR DATA COMPUTER.Jul 28, 1995 · N358CA · Saab SF340ASDR COM60524Dcu · defectiveEICAS COMP INOP MESSAGE IS ON. REPLACED THE NR 1 DATA CONCENTRATOR UNIT.Jul 23, 1995 · N937CA · Cndair CL6002B19SDR SIMA951722Adc · failedDFW - FLT 3807 - AFTER TAKEOFF, LT ENGINE TORQUE SURGED 15 PERCENT. PILOTS RETURNED TO DFW AND LANDED WITHOUT INCIDENT. RAI LT DAT SENSOR AND NR 1 ADC. AIRCRAFT RETURNED TO SERVICE. PART TOTAL CYCLES, 3,520. (X)Jun 21, 1995 · N369AT · Aerosp ATR72212SDR WRLA95028Adc · inoperativeON CLIMB-OUT OF LSZH, FLIGHT CREW EXPERIENCED AN AIRSPEED MISMATCH BETWEEN FLIGHT OFFICERS AND CAPTAINS AIRSPEED INDICATORS. CAPTAINS AIRSPEED WAS IN AGREEMENT WITH THE STANDBY AIRSPEED INDICATOR. CAPTAIN ELECTED TO RETURN TO LSZH. AIRCRAFT RETURNED TO GATEMay 15, 1995 · N275WA · Doug MD11SDR USAA950406Adc · failedCLT - FLT 1157 - CAPTAIN'S FLIGHT INSTRUMENTS, AIRSPEED, ALTIMETER FAILED AND GPWS WARNING CAME ON. FLIGHT RETURNED TO CLT WHERE AN OVERWEIGHT LANDING WAS MADE WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED NR 1 ADC. OPS CHECK OK. PERFORMED OVERWEIGHT LANDApr 23, 1995 · N534AU · Boeing 7373B7SDR 9506362711Adc · malfunctionedDURING DEPARTURE CLIMB AT 1600 FEET, AUTO-PILOT SYSTEM DISCONNECTED WITH AIRCRAFT OUT OF TRIM AND UNCOMMANDED RUDDER INPUT. RETURNED TO MIA WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED NR 1 AIR DATA COMPUTER. OPERATIONAL CHECK NORMAL PER MM.Apr 19, 1995 · N715RC · Boeing 7272S7SDR 9505579151Adc · malfunctionedCAPTAIN'S ALTIMETER AND ALTITUDE ALERTER FLAGGED DURING CLIMBOUT. FLIGHT RETURNED TO MSP AND LANDED WITHOUT INCIDENT. REPLACED CAPTAIN'S AIR DATA COMPUTER. OPERATIONAL CHECK OK. AIRCRAFT RETURNED TO SERVICE.Apr 13, 1995 · N8909E · Doug DC914
Back to JASC 3417