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"

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SDR DL733991272Connector · looseAFTER LIFTOFF AIRSPEED INDICATOR ERRACTIC ALONG WITH ALTIMETER, FIRST OFFICERS SIDE. FOUND PIN 38 PUSHED BACK AT NR 2 ADC RACK CONNECTOR D311A. RESEATED PIN, FLAGS DISAPPEARED. NR 2 ADC FUNCTION TEST VALID. FMCS SENSOR DISCRETE FOR NR 2 ADC OJun 6, 1999 · N952WP · Boeing 7373B7SDR CA990719035Computer · failed(CAN) JUST AFTER TAKEOFF, STICK SHAKER ACTIVATED FOR 3 SECONDS. CONTINUED TO FL 310, ALTIMETER DISAGREE AMBER MESSAGE ON EICAS. QUICK REF PROCEDURE RESULTED IN CAPTAIN'S ADI TO C AND FIRST OFFICER TO L, MESSAGE EXTINGUISHED. TRIED TO CONTINUE BUT ON CLIMB ABJun 5, 1999 · Boeing 747433SDR SWAA990963Connector · looseAIR TURNBACK--- UPON TAKE OFF, F/O'S AIR SPEED, ALTIMETER INDICATORS AND TRANSPONDER INSTRUMENTS BECAME INOP. FOUND QUICK DISCONNECT ON NR 2 ADC LOOSE. SECURED CONNECTOR PER MM.Jun 4, 1999 · N691WN · Boeing 7373G7SDR 99FDEA00203Adc · inoperative99-123 CAPT A/S TAPE ON PFD STOPED AT 50KTS. REMOVED AND REPLACED ADC. PERF FUNCTIONAL TEST PER 34-10-00 AND 34-18-00 SYS OPS TEST OK. NO LEAKS FND, A/C OK FOR SERVICE.Jun 2, 1999 · N414FE · Airbus A310203SDR SWAA990945Line · looseAIR TURNBACK - AFTER TAKEOFF, CAPTAIN'S AIR SPEED, ALTIMETER, AND IVSI GIVING ERRATIC INDICATIONS. FOUND NR 1 ADC PITOT LINE LOOSE. SECURED LINE PER MM.Jun 1, 1999 · N325SW · Boeing 7373H4SDR VTZA990113Dadc · failedFLT 7356 - IAD-JFK - DURING CRUISE, AIRCRAFT MADE AN UNSCHEDULED LANDING DUE TO NR 2 DADC FAILED. AIRCRAFT RETURNED TO GATE WITH NO FUTHER PROBLEMS. MAINTENANCE INSPECTED AND REMOVED AND REPLACED NR 2 DADC. OPS CHECK OK. AIRCRAFT WAS RELEASED AND APPROVED May 23, 1999 · N324UE · Jetair JETSTM4101SDR 99FDEA00171Cadc · failed99-105 - CAPT AIRSPEED, ALTIMETER AND VSI INSTR MALFUNCTION AFT T/O. REMOVED AND REPLACED NR 1 CADC AS PER MM 34-12-011-4, SYS OK FOR SERVICE.May 7, 1999 · N222FE · Boeing 727233SDR USAASB99119Adc · failedTPA - FLT 2636 - AT ROTATION ON TAKEOFF FROM TPA, CREW RECEIVED THE FOLLWING INDICATIONS, FIRST OFFICER ALTIMETER INDICATED STANDBY AND COULD NOT BE RESET, FIRST OFFICER MACH INOPERATIVE, FIRST OFFICER VSI FLAG, ACARS INOPERATIVE, MACH TRIM FAIL AND ALTITUDE AMay 3, 1999 · N245US · Boeing 737201SDR PLGA990426Adc · defectiveBOS - FLT 6439 - AFTER DEPARTURE CREW LOST BOTH TRANSPONDERS, TCAS, AUTO-PILOT, YAW DAMPENERS, AND FLIGHT DIRECTORS. AIRCRAFT DIVERTED BACK TO BOSTON AND LANDED WITHOUT INCIDENT. MAINTENANCE FUOND THE AIR DATA COMPUTER (ADC) TO BE DEFECTIVE. THE ADC WAS REPApr 26, 1999 · N359BE · Saab 340BSDR 99UAL900238Adc · failedALL INSTRUMENT FLAGS ASSOCIATED WITH CADC IN VIEW, CAPTAINS ALTIMETER, ALTITUDE ALERT, GPWS FALL, WINDSHEAR INOPERATIVE, TAS OFF. RETURNED TO ORD. *S/D* REPLACED NR 1 CENTRAL AIR DATA COMPUTER.Apr 25, 1999 · N7289U · Boeing 727222SDR 99UAL900232Adc · failedALL ALTIMETERS AND AIRSPEED INDICATORS DISAGREE IN FLIGHT. *S/D* FAULTY AIR DATA COMPUTER. THE NR 2 AIR DATA COMPUTER WAS REPLACED, OPS CHECK OK.Apr 25, 1999 · N956UA · Boeing 737522SDR RAIA990426Adc · failedFLT 7516 - STL - NR 2 EADI FAULTED. MAINTENANCE REPLACED NR 2 AIR DATA COMPUTER. (M)Apr 18, 1999 · N559HK · Jetair JETSTM4101SDR RAIA990407Adc · failedFLT 7703 - BOS - AIR DATA FAIL INDICATION ON CAPTAINS SIDE. MAINTENANCE REPLACED CAPTAINS AIR DATA COMPUTOR. (M)Apr 7, 1999 · N555HK · Jetair JETSTM4101SDR RAIA990401Adc · failedFLT 7140 - STL - NR 2 AIR DATA COMPUTER INOPERATIVE. MAINTENANCE REPLACED NR 2 AIR DATA COMPUTER. (M)Apr 1, 1999 · N563HK · Jetair JETSTM4101SDR CA990401008Connector · mismanufactured(CAN) COMPONENT FOUND WITH PIN E SHEARED OFF UPON RECEIPT FROM MANUFACTURE.Mar 23, 1999 · Cndair CL6002B19SDR 99ZZZX1651Adc · damagedTHIS AIR DATA COMPUTER IS USED ON A BOEING 737. EXCESSIVE LOAD ON J3 PINS CAUSED CONNECTOR J3 TO MELT AROUND THESE PINS. ADAPTER DG120 WAS NOT INCLUDED WITH AIR DATA COMPUTER. SUSPECT WATER DAMAGE TO DG120, WHICH CAUSED SHORTS AND OVERLOADS. IN THIS CONDITMar 9, 1999 · Boeing 737*SDR 99ZZZX1371Computer · failedDURING THE TOLERANCE CHECK OF THE R.V.S.M. REQUIREMENTS OF T.L.M.C. OF 604 MM, IT WAS NOTED THAT THE A.D.C. DID NOT MEET THE TOLERANCES CALLED OUT. THE FAILED UNIT WAS REMOVED AND SENT BACK TO THE MFG FOR REPAIR. REPLACEMENT (REPAIRED UNIT WAS INSTALLED IN IMar 6, 1999 · N555WD · Cndair CL6002B16SDR 99ZZZX1370Computer · failedDURING TOLERANCE CHECK OF THE R.V.S.M. REQUIREMENTS OF T.L.M.C. OF 604 MM, IT WAS NOTED THE A.D.C. DID NOT MEET THE TOLERANCES CALLED OUT. THE FAILED UNIT WAS REMOVED AND SENT BACK TO THE MFG FOR REPAIR. REPLACMENT (REPAIRED) UNIT WAS INSTALLED IN ITS PLACE.Mar 6, 1999 · N555WD · Cndair CL6002B16SDR MWEA99080Adc · inopON TAKEOFF AT 20,000 FT THE FIRST OFFICER MAIN ALTIMETER FLAGGED AT 20,000 FT AND THE NEEDLE STUCK THERE. MTC REMOVED AND REPLACED NUMBER TWO AIR DATA COMPUTER.Feb 24, 1999 · N207ME · Doug DC932SDR USAASB99050Circuit Breaker · trippedPHL - FL325 - ON CLIMB-OUT FROM PHL, AT 3,000 FEET, THE F/O'S ALTIMETER AND AIRSPEED INDICATION BECAME INOPERATIVE. FLIGHT RETURNED TO FIELD AT PHL AND LANDED WITHOUT FURTHER INCIDENT. NO EMERGENCY WAS DECLARED. MAINTENANCE RESET THE NR 2 AIR DATA COMPUTER Feb 23, 1999 · N442US · Boeing 7374B7SDR COMA9960074Circuit Breaker · trippedA 20 KNOT DIFFERENCE BETWEEN PILOT AND CO PILOT AIR SPEED INDICATORS. INSPECTED PITOT SYSTEM, FOUND NO DISCREPANCIES. RESET ADC CIRCUIT BREAKERS AND RETURNED AIRCRAFT TO SERVICE.Feb 17, 1999 · N995CA · Cndair CL6002B19SDR VNAA9812015Adc · failedA RED O2 FAIL WARNING MESSAGE ILLUMINATED DURING THE FLIGHT. THE AIRCRAFT RETURNED TO DCA. OUTSTATION MAINTENANCE INSPECTED THE OXYGEN SYSTEM IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 12-19-01. THE AIRCRAFT WAS RETURNED TO SERVICE. LATER THAT DAY, THE WDec 24, 1998 · N438JS · Dorner DO328100SDR RAIA981221Adc · failedJFK/RED - FLT 6705 - RED WARNING. NO TAKEOFF DATA ILLUMINATED. MAINTENANCE REPLACED NR 1 AIR DATA COMPUTER. (X)Dec 21, 1998 · N804HK · Emb EMB145SDR P2EA98256Adc · failedMCI - FLT 819 - AIR RETURN NO EMERGENCY DECLARED LANDING UNEVENTFUL. BOTH AIRSPEED INDS HAD FALSE INDICATIONS ON CLIMB-OUT, F/O HIGH, CAPT'S LOW, CAPTS AIRSPEED THEN WENT OT ZERO AND STAYED THERE. CAPT'S LOW, CAPT'S AIRSPEED THEN WENT OT ZERO AND SYATED THERNov 22, 1998 · N620PC · Boeing 737244SDR 99ZZZX219Lamp · failedSPRING CONTACT IN LAMP 18 ASSY SEPARATED CAUSING A SHORT CREATING CURRENT OVERLOAD TO COMPONENT U217. U217 BURNED. CAUSE UNKNOWN. SUBMITTER SUSPECTS MISALIGNED OR MISGUIDED CONTACTS ON BULB CHANGE OR WEAK SPRING CONTACTS. PRODUCT HISTORY REVIEWED WITH NO CNov 20, 1998 · N2UP · Cessna 650SDR HEEA0016387Adc · malfunctionedFAIL 5 LIGHT AND A/S 3 LIGHT.Oct 23, 1998 · N6957Y · Bell 214STSDR 98FDEA00646Adc · failed98-246 ON CLIMB-OUT, LOST CAPT AIRSPEED CAPT ALT, GPWS, ALT ALERTER, TRANSPONDER NR 1, & MODE C IN BOTH TRANSPONDER & AUTOPILOT. REMOVED AND REPLACED DADC PER BOEING 727 MM CHAPTER 34-12-11. OPER CKS NORM. AUTOPILOT DOWNGRADED TO CK CAT 2 STATUS. A/C DOWNGOct 9, 1998 · N235FE · Boeing 727247SDR 98ZZZX4549Adc · malfunctionedUPON INITIAL 'POWER-UP' OF AIR DATA COMPUTER, ALTIMETER FALLS OFF LINE (FLAGS), AND REMAINS OFF LINE UNTIL AIR DATA COMPUTER IS IN THE OFF POSITION.Sep 19, 1998 · N501GS · Cessna 501SDR 98ZZZX4548Adc · malfunctionedUPON INITIAL 'POWER-UP' OF AIR DATA COMPUTER, ALTIMETER CLIMBS TO 4,000 FEET, AND DROPS VERY SLOWLY. UPON FLIGHT DESCENT, ALTITUDE 'CAPTURE' IS SLOW, AND CAN INDICATE 200 TO 400 FEET IN ERROR.Sep 19, 1998 · N501GS · Cessna 501SDR UF6A980901Computer · malfunctionedORD - FLT 5711 - NR 2 ADC FAILED IN FLIGHT. MAINTENANCE INSPECTED AND FOUND STATIC QUICK DISCONNECT LOOSE ON NR 2 ADC. RESECURED QUICK DISCONNECT. SYSTEM OPS CHECKED GOOD. (M)Sep 2, 1998 · N859AW · Bag ATPSDR COMA9860248Adc · malfunctionEFIS COMP MON AND AIRSPEED WARNINGS. REPLACED THE NR 2 ADC.Sep 2, 1998 · N940CA · Cndair CL6002B19SDR HEEA0015767Adc · failedADC SHOWS FAIL 4 AND AIRSPEED 3 FAILS.Aug 26, 1998 · N6957Y · Bell 214STSDR CA980909016Adc · inoperative(CAN) ON FINAL APPROACH, AIRCRAFT HAD A SUDDEN SHARP MOVEMENT WHEN FLAPS WERE SELECTED. AN AIRSPEED DIFFERENCE OF 10 TO 20 KNOTS BECAME APPARENT. THIS CONTINUED DOWN TO ROLL-OUT. CAPTAIN'S AIRSPEED SHOWED 70, 1ST OFFICER ZERO. NR 2 AIR DATA AND INERTIAL REFAug 17, 1998 · Airbus A319114SDR HEEA0015337Computer · failedAIR DATA COMPUTER WILL NOT SHOW FUEL BURN AND ON OCCASION POWER CHECK.Jul 29, 1998 · N22608 · Bell 412SDR VTZA98240Adc · failedFLT 6621 - IAD-ILM - DURING CRUISE, AIRCRAFT MADE AN UNSCHEDULED LANDING DUE TO NR 2 ADC FAILURE. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND REMOVED AND REPLACED NR 2 ADC, OPS CHECK OK. AIRCRAFT WAS RELEASED AND APPROVED Jul 16, 1998 · N324UE · Jetair JETSTM4101SDR C2XA98CL054Adc · failedCLE - FLT 4101 - CREW REPORTED THAT WHILE IN CRUISE FLIGHT, THE NR 2 ADC CAUSED NUMEROUS PROBLEMS WITH AIRSPEED AND ALTITUDE. THE CREW ALSO HAD THE NR 1 ENGINE CONTROL A/B FAIL AND THE NR 2 ENGINE B CONTROL FAIL, WHICH WOULD NOT RESET. AIRCRAFT DIVERTED INTOJul 16, 1998 · N16927 · Emb EMB145SDR VTZA98245Adc · failedFLT 6612 - IAD-JFK - DURING CRUISE, AIRCRAFT MADE AN UNSCHEDULED LANDING DUE TO NR 1 ADC FAILED. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND REMOVED AND REPLACED NR 1 ADC. OPS CHECK OK. AIRCRAFT WAS RELEASED AND APPROVED FJul 14, 1998 · N314UE · Jetair JETSTM4101SDR RAIA980710Computer · failedFLT 7789 - JFK - LEFT AIR DATA COMPUTER FAILED. MAINTENANCE REPLACED LEFT AIR DATA COMPUTER. (M)Jul 11, 1998 · N570HK · Jetair JETSTM4101SDR ARWA980702Adc · malfunctionedBDL - FLT 505 - ON TAKEOFF ROLL, CAPTAIN'S AIRSPEED FAILED WITH NR 1 MACH FEEL, NR 1 ATS, NR 1 MASK TRIM FAIL WITH NUMEROUS FLAGS. REMOVED AND REPLACED A.D.C., GROUND CHECKED, AND OPERATIONAL NORMAL IAW MM 34-14-00. (X)Jul 6, 1998 · N308GB · Lkheed 1011385115SDR ARWA980701Adc · malfunctionedBDL - FLT 505 - ON TAKEOFF, CAPTAIN'S AEROSPEED FAILED WITH NR 1 MACH FEEL, NR 1 ATS, NR 1 MACH TRIM FAIL WITH NUMEROUS FLAGS. REMOVED AND REPLACED NR 1 AIR DATA COMPUTER GROUND CHECKED AND OPERATIONAL CHECKED NORMAL IAW MM 34-14-00. AIRCRAFT RETURNED TO SERJul 2, 1998 · N308GB · Lkheed 1011385115SDR HEEA0015085Computer · malfunctionedAIR DATA COMPUTER WILL NOT SHOW PANEL CHECKS.Jul 1, 1998 · N5748M · Bell 214STSDR USAASB98160Adc · failedCLT - FLT 8036 - DURING CRUISE, CREW REPORTED A TOTAL NR 1 AIR DATA COMPUTER FAILURE. CREW PULLED AND RESET RN 1 CADC CIRCUIT BREAKERS. SYSTEM RESETS, THEN FAILS AGAIN. FLIGHT DIVERTED TO CLT AND LANDED WITHOUT FURTHER INCIDENT. NO EMERGENCY WAS DECLARED. Jun 26, 1998 · N232US · Boeing 737201SDR CA980707025Computer · failed(CAN) TAKEOFF ABORTED AT 90 KNOTS DUE CAPT'S AIRSPEED INDICATOR INDICATING ZERO DURING TAKEOFF ROLL. AIR DATA COMPUTER REPLACED. A/C SERVICEABLE.Jun 25, 1998 · Boeing 737217SDR HEEA0014880Transducer · failedTRANSDUCER CAUSES FAIL 6 ON ADC.Jun 22, 1998 · N59805 · Bell 214STSDR HEEA0014693Computer · failedCOMPUTER DOES NOT COUNT DOWN AS FUEL BURNS.Jun 10, 1998 · N59806 · Bell 214STSDR C2XA98CL046Adc · contaminatedSDF - FLT 4042 - AIRCRAFT DIVERTED INTO SDF DUE TO A UNCOMMANDED LEFT ENGINE SHUT DOWN. WHILE TROUBLE SHOOTING THE AIRCRAFT MAINTENANCE FOUND ADC FAULTS ON THE MFD CAUSING FADEC FAILURES. THE LEFT ENGINE FAILED WHEN ALT FADEC WAS SELECTED. MAINTENANCE ALSO Jun 9, 1998 · N14940 · Emb EMB145SDR HEEA0014501Computer · malfunctionedADC FAILED, ONLY ZERO DISPLAYED WHEN SETTING ATTEMPTED.Jun 4, 1998 · N59806 · Bell 214STSDR RAIA980518Adc · failedFLT 7789 - JFK - CAPTAINS AIR DATA COMPUTER FAILED IN FLIGHT. MAINTENANCE REPLACED CAPTAINS AIR DATA COMPUTER. (M)May 30, 1998 · N568HK · Jetair JETSTM4101SDR 98FDEA00371Cadc · failed98-0140, AT ROTATION OFF FLAG APPEARED IN THE CAPTAIN'S ALTIMETER AND NEEDLES FROZE AT 50 FT INDICATED ALTITUDE. OFF FLAG WENT OUT OF VIEW WHEN DESCENDING BELOW 50 FT ON LANDING. REMOVED AND REPLACED NR 1 CADC AND CAPTAIN'S ALTIMETER INDICATOR PER MAINTENANCMay 29, 1998 · N127FE · Boeing 72725CSDR P5CA9800796Cadc · malfunctionedA 400 FT SPLIT IN ALTIMETERS AT 39,000 FT. REPLACED NR 1 CENTRAL AIR DATA COMPUTER PER M/M 34-11-00.May 28, 1998 · N920FT · Boeing 747249F
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