JASC 3414

Service difficulty reports · 860

Reports filed under 3414 · Airspeed/Mach Indicator, 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 = '3414'
  ORDER BY difficulty_date DESC"

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SDR IPXA2026101456665Adc · malfunctionedEMERGENCY DECLARED, IN CRUISE EXPERIENCED AIRSPEED UNRELIABLE SITUATION PER QRH CHECKLIST WE DETERMINED THE LEFT SIDE WAS UNRELIABLE. DUE TO NON SPECIFIC FIM TASK, USED FAULT CODE INDEX WITH CODE 34 12 77 01 REV 149, REPL L ADC IAW AMM 34-12-01/401 REV 149, Oct 14, 2026 · N328UP · Boeing 76734AFSDR DALA2026092505355Flex Hose · leakingDECLARED AN EMERGENCY DUE TO AIRSPEED DISAGREE AND FIRST OFFICER AIRSPEED UNRELIABLE DURING DESCENT. REPLACED RT ADM FLEX HOSE DUE TO LEAKAGE. (9506480) AIRCRAFT WAS GROUNDEDSep 24, 2026 · N955DZ · Boeing 7379GPERSDR DALA2026091705195Adiru · faultedATO- APPROX 100KTS DUE TO AIRSPEED DISAGREE. REPLACED LEFT ADIRU PER AMM 32-21AND PITOT PROBE TUBE PER B737-34-11. PERFORMED HIGH LEVEL PUMP UP, NO FAULTS PRESENT. CYCLED EEC SWITCHES BACK TO NORMAL PER B737 SDS 73-21-00 EEC'S GO TO ALT WHEN AIRSPEEDS DISAGRESep 17, 2026 · N955DZ · Boeing 7379GPERSDR YENA2026091600805Adm · faultedFLT 1196, FLL-FLL. REF ITEM 1 LG 4424380 ACCOMPLISHED STBY ACCURACY CK OF ADM #3 & STBY FOUND ADM#3 455HPA IS 21,540 FT SHOULD BE 20,000FT CAS IS 340 KTS SHOULD BE 320 KTS. ADM#3 OUT OF TOLERANCE.; VERIFIED STBY ADM 3 ACCURACT CHECKS REF AMM 34-13-00. CHCKS OKSep 16, 2026 · N652JB · Airbus A320232SDR SWAA2026091560171Indicator · malfunctionedAIRSPEED DISAGREE DISPLAYED. PERFORMED AIRSPEED DISAGREE FAULT ISOLATION IAW FIM 31-62 TASK 876. NO FAULTS FOUND ON ADIRS BITE TEST IAW B737 FIM 34-21 TASK 801. PERFORMED SATISFACTORY PITOT STATIC FLUSH IAW B737 AMM 34-11-00-170-802. PERFORMED SATISFACTORY PISep 14, 2026 · N7702A · Boeing 7377BDSDR FDEA202608181146Adc · inoperativeUPON ROTATION FOS AIRSPEED TAPE WENT AWAY. RECEIVED IAS DISAGREE EICAS. CAPTAIN FLIGHT DIRECTOR DROPPED PITCH INDICATOR. RECEIVED RUDDER RATIO AND MACH/SPD TRIM EICAS MESSAGES. ELEV ASYM STATUS MESSAGE. EMERGENCY DECLARED. AMM: 34-12-01-4 FIM: 27-09 TREAug 18, 2026 · N978FD · Boeing 757236SDR DALA2026081704702Module · erraticSHIP 3717 -ATO- APPROX 140KTS DUE TO ERRATIC AIRSPEED INDICATION. CORRECTIVE ACTION: R/R LT ADIRU, LT PITOT ADM, NR 1 & 2 BRAKES AND TIRES, LT GEAR SHIMMY DAMPER HYD LINE AND BRACKET. (9567880) AIRCRAFT WAS GROUNDEDAug 16, 2026 · N387DA · Boeing 737832SDR U2RA2026071400036Indicator · no discrepancyAIRSPEED UNRELIABLE. PERFORM OPS TEST IAW AIRCRAFT MAINTENANCE MANUAL 34-12-00. NO FAULTS NOTED. AIRCRAFT EXPERIENCED AN EQUIPMENT COOLING FAILURE PRIOR TO THE AIRSPEED BECOMING UNRELIABLE.Jul 12, 2026 · N936CA · Boeing 747446SDR HNAA2026052600435Indicator · malfunctionedFO AIRSPEED REMAINS AT ZERO DURING TAKEOFF ROLL. ON TAKEOFF ROLL SPS ADV MESSAGE ON EICAS. ABORTED TAKEOFF TWICE. PERFORMED ADC 1 AND ADC 2 LEAK CHECK IAW AMM 34-13-00-790-802-A MULTIPLE TIMES. NO DEFECTS NOTED. AIRSPEED AND ALT INDICATIONS CHECKED GOOD ON May 23, 2026 · N905JH · Emb EMB145LRSDR K11A2026042700379Indicator · failedAIRSPEED UNRELIABLE FO SIDE AND STICK SHAKER ACTIVATION AFTER TAKEOFF LP 737-004-1488. REF LP 737-004-1489 REJECTED T/O SPEED 70 KNOTS, AIRSPEED UNRELIABLE ON FO SIDE ON BOTH AIRSPEED AND EFIS. R&R MACH AIRSPEED INDICATOR IAW AMM 34-12-21, OPS CHECK GOOD NO DApr 27, 2026 · N730CK · Boeing 7374C9SDR 2026FA0000270Indicator · malfunctionedON 4/12/2026 N440MQ CYO440 DEPARTED KLUK HEADING TO KAGS WHEN THE CAPTAIN NOTICED THE LH AIRSPEED WAS CONSIDERABLY LOWER THAN THE RH. HE ELECTED TO DIVERT INTO KJQF FOR MAINTENANCE ASSISTANCE. THE MAINTENANCE SHOP IN JQF PERFORMED A PITOT STATIC CHECK AND TOOKApr 12, 2026 · N440MQ · Lear 60LEARSDR CALA2026030214163Indicator · faultedRTO FIRST OFFICER AIRSPEED UNRELIABLE, INOPERATIVE FLAG DISPLAYED. F/O MACH AIRSPEED INDICATOR FOUND TO BE FAULTY. AIRSPEED INDICATION FOUND TO BE ROLLING BETWEEN 29 & 30 KNOTS CONSISTENTLY. CREW DEBRIEF SHOWED 8-10 KNOTS DIFFERENCE DURING TAKEOFF ROLL ANDFeb 27, 2026 · N668UA · Boeing 767322SDR TSAA2026021200001Indicator · failedFIRST OFFICER'S AIRSPEED INDICATOR FAILED WITH A RED FLAG. NEEDLE FROZEN AT 296 KTS.Feb 12, 2026 · N440KH · Boeing 737490SDR DALA2026021201020Indicator · malfunctionedCAPTAIN`S AIRSPEED INDICATOR FLAG IN VIEW. REPLACED CAPT AIRSPEED INDICATOR.Feb 11, 2026 · N552NW · Boeing 757251SDR DALA2026010900211Adm · faultedATB- RETURNED MSP DUE TO AIRSPEED DISAGREE. CAPTAIN'S SIDE INACCURATE. FAULT CODES 31-65050 (ALT DISAGREE), 31-65010 (PITCH DISAGREE) AND 31-65020 (ROLL DISAGREE) RECORDED. CAPTAIN'S PITOT HEAT TESTS GOOD. REPLACED LEFT ADIRU AND CAPTAIN'S SIDE PITOT ADM. PIJan 9, 2026 · N821DN · Boeing 737932ERSDR DALA2026010500053Module · faultedATO, AT 85KTS DUE TO AN F/O AIRSPEED INDICATION ERROR. REPLACED NR 2 PITOT PROBE AIR DATA MODULE. (LP: 8060718)Jan 4, 2026 · N339NW · Airbus A320212SDR QMLA2025121320124Line · failedAIRSPEED INDICATOR FAILED IN FLIGHT, REMOVED DASH AND FOUND 1 DISCONNECTED PITOT LINE FROM THE AIRSPEED INDICATOR, R & R PRESSURE PITOT LINE P DHS212-720.20. PREFORMED CHECK OF THE PITOT LINE & AIRSPEED WITH NO DEFECTS NOTED IAW AMM 34-14-00,5-1. AIRSPEED IDec 10, 2025 · N350MV · Snias AS350B3SDR IPXA2025120335242Switch · faultedEMERGENCY DECLARED, ATB. CLIMBING OUT OF 13000 MAX SPEED ZIPPER WAS STUCK AT 267KTS, OVERSPEED INDICATION PERFORMED AIRSPEED UNRELIABLE CHECKLIST, ALL AIRSPEEDS MATCHED, RETURNED TO ONT. T/S IAW SSM 34-12-01 AND SSM 34-12-02 FOUND SWITCH (S10471) FAULTY. R Dec 2, 2025 · N462UP · Boeing 75724APFSDR CALA2025120211690Indicator · unreliableAIRSPEED UNRELIABLE. PER FLIGHT CREW FO'S SIDE AIRSPEED WAS UNRELIABLE, ABOUT 50 KNOTS OFF OTHER SIDE/STBY. CDS BITE SHOWED AIRSPEED DISAGREE MESSAGE MX MSG 31-65060. NO OTHER ASSOCIATED FAULTS ON SMYD OR ADIRU BITE FOUND. 15 LEGS AGO THERE WERE A COUPLE ANov 27, 2025 · N76526 · Boeing 737824SDR DALA2025102907937Iru · incorrectSHIP 5812 -MISC/DE- DUE TO AIRSPEED ERRATIC WITH CENTER AIRSPEED IN USE. CORRECTIVE ACTION: REPLACED CENTER ADIRU.Oct 28, 2025 · N592NW · Boeing 757351SDR CALA2025062706007Indicator · faultedREJECT TO DUE TO A/S DISAGRE. CAP+STB 120KT/ FO 100 KT AND FLAG BRK TEMP 9 FOUND RIGHT HAND MAC AIRSPEED INDICATOR FLICKERING. REMOVED AND INSTALLED NEW MAC AIRSPEED INDICATOR REF AMM 34-13-02-404-003. FAULT NO LONGER REMAINS WITH NEW INDICATOR. FURTHER TROUBLJun 24, 2025 · N684UA · Boeing 7673CBSDR FXTA20250612001Indicator · faultedRED X ON AIRSPEED, VSI, TEMP INTERMITTENTLY; SWAPPED TO RH SIDE AND PROBLEM FOLLOWED, UNIT REPLACEDJun 9, 2025 · N994BA · Cessna 208BSDR DALA2025052003893Line · disconnectedSHIP 3873 -ATB- RETURNED SLC DUE TO CAPTAIN'S AIRSPEED UNRELIABLE. CORRECTIVE ACTION: RECORDED LEFT ADIRS FAULT 34-21038 (AIR/GND LOGIC INVLD). FOUND LEFT ADM LINE DISCONNECTED. RECONNECTED SAME. OPS CHECK GOOD.May 16, 2025 · N873DN · Boeing 737932ERSDR DALA2025050703515Indicator · inoperativeSHIP 3153 - ATO - AT LOW SPEED DUE TO CAPTAIN'S AIRSPEED READING ZERO. CORRECTIVE ACTION: MAINTENANCE IN PROGRESS. (LP: 7040831)May 6, 2025 · N353NB · Airbus A319114SDR ABXA20250419082Indicator · unreliableDURING CLIMB, AIRSPEED UNRELIABLE / STUCK AT 270 KTS INDICATION OF OVERSPEED WITH FLAPS & GEAR UP AT 270 KTS. EMERGENCY DECLARED, AIR TURN BACK. (ATB) . MAINTENANCE T/S - ALT VMO SWITCH SELECTED IAW CDL 32-12-1. AIRSPEED TAPE WILL SHOW 270 KTS. PERFORMED LANApr 19, 2025 · N1489A · Boeing 76731KSDR CALA2025022702503Indicator · faultedON DEPARTURE ROLL AIRSPEED DESCREPENCY OF 40 KTS LOG PAGE CLEARED IN REFERNCE TO LOG PAGE 3978826. SEE FORMENTIONED LOG PAGE FOR UPDATED DETAILS. DURING INSPECTION IT WAS NOTED THAT F/O AIRSPEED INDICATOR, TRACKED UP AND DOWN ON MECHANICAL DIGITS, DURING STATIFeb 24, 2025 · N677UA · Boeing 767322SDR 141A202501210001Gauge · failedIAS ALT TORQUE GAGE FAILED AFTER TAKE OFF. IFR WAS CANCELED AND RETURNED TO FIELDJan 21, 2025 · N576SA · Cessna 208BSDR DALA2025011500346Adiru · malfunctionedSHIP 1817 -DE/MISC- DUE TO AIRSPEED DISAGREE. CORRECTIVE ACTION: REPLACED LEFT ADIRU. TEST NORMAL.(6977348)Jan 11, 2025 · N841MH · Boeing 767432ERSDR SWIA20250102Indicator · unreliableFLIGHT CREW REPORTS: UNRELIABLE AIRSPEED JUST AFTER TAKEOFF. EFIS COMP MON WITH IAS AND ALT FLAGS. MACH TRIM AND STALL FAIL CAUTIONS ALSO APPEARED. FO'S SIDE AFFECTED WITH AIRSPEED RANGING FROM 80 KNOTS TO 180 KNOTS DIFFERENT AND ALTITUDE 2000' DIFFERENT. (Jan 2, 2025 · N906EV · Cndair CL6002B19SDR SWIA2025010901Indicator · unreliableCA SIDE UNRELIABLE AIRSPEED LEAVING DEN ABOUT 500FEET. STALL FAIL, EFIS COMP MON, MACH TRIM DISPLAYED. (FLIGHT 5347 - FILED CLOSED) JAN 04, 2025 STATION: DEN--ARRIVED AT A/C AND AFTER REPLACING PITOT LINE REF EAML 1505358. PERFORMED OPS CHECK OF THE STALJan 1, 2025 · N932SW · Cndair CL6002B19SDR SWI20250103005Indicator · unreliableCA SIDE UNRELIABLE AIRSPEED LEAVING DEN ABOUT 500FEET. STALL FAIL, EFIS COMP MON, MACH TRIM DISPLAYED. (FLIGHT 5347 - FILED OPEN) THIS IS CURRENTLY A WORK IN PROGRESSJan 1, 2025 · N932SW · Cndair CL6002B19SDR DALA2024120411448Service difficultySHIP 1817 -MISC/DE- CREW ELECTED DE BEFORE TOD INTO MAD DUE TO LT AIR DATA SPLIT. INDICATIONS NORMAL WITH CAPT INSTRUMENTS SOURCE SELECTED TO RT. CORRECTIVE ACTION: MAD MTC APPLIED MEL. (6600754)Dec 2, 2024 · N841MH · Boeing 767432ERSDR CALA2024112501280Indicator · faultyFIRST OFFICER AIRSPEED FLUCTUATING UP AND DOWN AT GATE F/O AIRSPEED INDICATOR CHECKED FLUCTUATING. NOT RESETTABLE. MEL3413X APPLIED. TOMC PENDING ADD EMP:V946366 MEL 3413X APPROVED DEFERED F/O AIRSPEED IND INOP PER MEL 34-13X F/O MACH AIRSPEED INDICATOR REPLACNov 22, 2024 · N673UA · Boeing 767322SDR HALA20241108069Indicator · faultedREJECTED TAKEOFF AT 60 KTS FOR F/O'S AIRSPEED RED FLAG. ONGOING TROUBLESHOOTING.Nov 8, 2024 · N4649K · Airbus A330343SDR IPXA2024102550954Computer · malfunctionedAIRSPEED UNRELIABLE GOING THROUGH FL200 DURING DESCENT. VARIOUS OTHER MALFUNCTIONS CAME AND WENT. LEVEL 2 ELEVATOR FEEL MALFUNCTION. IAS SPEED AND FLIGHT DIRECTORS CAME AND WENT. REMOVED AND REPLACED #1 ADC PER MD11 AMM CH 34-16-01. PERFORMED OPS TEST PER 3Oct 25, 2024 · N251UP · Doug MD11FSDR IPXA2024100422311Indicator · unreliableATB, EMERGENCY DELCARED. UNRELIABLE AIRSPEED CAPT SIDE- RAN QRH - DECLARED EMERGENCY 75-10 KTS THEN STABILIZE - 5 TIMES COMMAND A/S INDICATOR ABOVE A/S DASHES - NO MAGENTA BUG ACCOMPLISHED AMM 34-10-00/501 1 AND 2 NO FAULTS. ORIGINAL SUBMISSION DATE: 10-3-202Oct 2, 2024 · N153UP · Airbus A300F4622RSDR UIEA2024092100913Adc · faultedAT 40,000' IN LEVEL FLIGHT, IAS DISAGREE MSG ON EICAS. CAPT'S AIRSPEED IND MAINTAINED 0.807M WHILE FO'S VARIED BY AS MUCH AS 0.03M & 12 KIAS. STBY A/S IND WAS CONCURRENT. FO'S A/S IND & CA'S A/S DETERMINED AS UNRELIABLE. ASSOC AIL LOCKOUT & RUDDER RATIO MSSep 21, 2024 · N663GT · Boeing 767324SDR CALA2024091000618Warning Light · illuminatedIAS DISAGREE LIGHT 80KTS CA...95KTS FO PERFORMED FIM 31-62 TASK 876. UPON PERFORMING FLUSHING, AMM TASK 34-11-00-170-802.RETRACTED DEBRIS FROM CAPTAIN'S PITOT LINE.PERFORMED PITOT LEAK CHECK PER AMM TASK 34-11-00-790-810.OPS CHECK GOOD. VERIFIED PITOT TUBES WESep 7, 2024 · N36280 · Boeing 737824SDR CALA2024091000615Indicator · faultedIAS DISAGREE AT FL380 RAN QRC QRH. RESULTED IN A RETURN TO GUM. CAPT SI DE WAS 15 KTS SPLIT. FLUSHED AND DEBRIS REMOVED FROM LEFT (CAPT'S) PITOT PROBE REF AMM 34-11-00-170-802 (ALTERNATE METHOD). PERFORMED LEFT PITOT LEAK TEST REF AMM 34-11-00-790-810. LEAK TESep 7, 2024 · N34282 · Boeing 737824SDR DALA2024090308687Indicator · inoperativeSHIP 1702 -ATO- @ 80 KNOTS DUE TO CAPT AIRSPEED INDICATOR FLAG. CORRECTIVE ACTION: REPLACED CAPT AIRSPEED INDICATOR. (4065006)Sep 3, 2024 · N172DZ · Boeing 767332SDR CALA2024080900397Indicator · unreliableREJECTED TAKEOFF DUE TO AIRSPEED UNRELIABLE AMBER LGT. CA INDICA TOR 55KTS FO INDICATOR 85KTS SEE LOG 7981417 FOR CAPTAINS PITOT TUBE REPLACED DUE TO BEING CLOGGED. AFTER REPLACEMENT , AIRSPEED INDICATION ON CAPTAINS SIDE MATCHED FIRST OFFICERS WHEN BOTH LEAKAug 7, 2024 · N77535 · Boeing 737824SDR SIMA20240805002Indicator · unreliableAIRSPEED UNRELIABLE AFTER TAKEOFF T/S PER FIM 22-11-00, FOUND TO BE TRANSITORY CONDITION OF NIC/PROC 4. NO FURTHER DEFECTS NOTED.Aug 5, 2024 · N774JG · Emb ERJ170100SESDR K11A2024071800270Indicator · faultedON TAKEOFF CAPT. AIRSPEED READ 45 WHEN FO CALLED 80 KTS. THEN CAPT. AIRSPEED JUMPED TO 85 KTS. THE AUTO THROTTLES DISCONNECTED AT 85 KTS FO TRIED TO RECONNECT THE AUTO THROTTLES BUT COULD NOT GET THEM TO ENGAGE. CAPT. ABORTED TAKEOFF AT 110 KTS, 5500 FT OF RUJul 18, 2024 · N9242Y · Boeing 7378ASSDR IPXA2024061787942Indicator · unreliableAIR TURNBACK AFTER TAKE OFF ABOVE 2000 CAPTAINS AIRSPEED UNRELIABLE THEN BLANKED OUT. IT CAME BACK THEN WENT AWAY. AFTER 3 MINUTES IT CAME TO NORMAL. THESE WERE ACCOMPANIED WITH AILERON LOCKOUT AND RUDDER RATIO AIRDATA SWITCHING TEST PERFORMED IAW AMM 34-12-00Jun 17, 2024 · N395UP · Boeing 767316SDR DALA2024060605844Adiru · faultedSHIP 3886 -MISC/DE- DECLARED EMERGENCY INTO ATL DUE TO AIRSPEED DISAGREE. CORRECTIVE ACTION: CDS FAULT 31-65060 (AIRSPEED DISAGREE) RECORDED. RIGHT ADIRU RECORDED MULTIPLE FAULTS. REPLACED RIGHT ADIRU. OPS CHECKS GOOD.Jun 5, 2024 · N886DN · Boeing 737932ERSDR DALA2024051605281Indicator · failedSHIP 5650 -MISC/DE- DUE TO CAPT AIRSPEED INDICATOR STUCK AT 300 KTS. CORRECTIVE ACTION: REPLACED CAPT AIRSPEED INDICATOR.May 15, 2024 · N550NW · Boeing 757251SDR QMLA2024051720053Indicator · failedAIRSPEED INDICATOR FAILED IN FLIGHT (BOTH G500 AND BACKUP INDICATOR). UPON LANDING AT BASE MECHANIC FOUND MUD DOBBER IN PITOT TUBE, BUG/DEBRIS WAS REMOVED AND SYSTEM FUNCTIONED PROPERLY. THIS MALFUNCTION WAS IDENIFIED ON THE RETURN LEG WITH NO PATIENT ON BOARDMay 14, 2024 · N237SH · Urocop EC130T2SDR FDEA202404260534Indicator · malfunctionedAFTER TURBULENCE AND ICING ENCOUNTER, FL360 ADC 2 AIRSPEED INDICATION DROPPED TO 60KTS. FO STANDBY, CAPT STANDBY AND ADC 1 SHOWED CORRECT INDICATION. FOLLOWED QRH PROCEDURE. AMM: 34-10-00-05, AMM: 22-40-00-05 PERFORMED BITE CHECK ON #2 ADC, TEST OK, AIRSPEApr 26, 2024 · N651FE · Airbus A300F4605RSDR DALA2024042604726Indicator · faultedDUE TO F/O AIRSPEED INDICATOR FROZE FOR A PORTION OF FLIGHT. REPLACED F/O AIRSPEED INDICATOR.Apr 25, 2024 · N542US · Boeing 757251SDR DALA2024041804563Adiru · faultedATO, AT APPROXIMATELY 100 KNOTS DUE TO CAPTAIN'S AIRSPEED INDICATOR UNRESPONSIVE. FOUND ADIRU #1 FAULTING. SWAPPED WITH ADIRU #3 AND PLACED ADIRU #3 ON MEL. LATER, MOVED ADIRU FROM NBR 1 POS TO NBR 3 POSITION AND INSTALLED NEW ADIRU IN NBR 1 POSITION.Apr 16, 2024 · N322NB · Airbus A319114
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