JASC 3421

Service difficulty reports · 1,142

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 ASAA2022100840203Sensor · faultyRIGHT ALPHA VANE SENSOR CAUTION LIGHT REMAINED ILLUMINATED. GROUNDED - YES. REMOVED/REPLACED R/H AOA SENSOR REF B737-9 AMM 34-21-05. OPS CHECK GOOD.Oct 8, 2022 · N943AK · Boeing 7379SDR CALA2022091402353Adiru · inoperativeL IRS INOP PER FLIGHTCREWS COMMENTS SUSPECT LH IRU ISSUE OUT OF STOCK LAX M+E 60-3421-9-0001 REPLACED LEFT ADIRU UNIT, GND CHK OK PER MM 34-21-01-400-801. ALSO PERFORMED LAND VERIFY AND IT PASSED PER MM 22-11-00. ADDED PICTURES. ADDED TRACKING NUMBER.....18768Sep 14, 2022 · N37277 · Boeing 737SDR 2022F00332None · inoperative10 MINUTES INTO A FLIGHT TO KLWT FROM KBIL THE FLIGHT CREW OBSERVED THE CO-PILOT ATTITUDE GYRO WAS NOT WORKING PROPERLY. THEY RETURNED TO KBIL WITHOUT INCIDENT.Aug 25, 2022 · N912SV · Beech 100BEECHSDR CALA2022072001847Adiru · fault messageFAULT LIGHT FOR THE IRS LIGHT ON RIGHT PRELIMINARY BITE ON RIGHT ADIRU SHOWS NO CURRENT FAULT AND NO PERFORMED REF. AMM 34-21-00. OPS CHECK GOOD. ACCP. LAND VERIFY INFLIGHT FAULTS. RE-ALIGNMED ADIRUS, APPROX. AFTER 10 MINUTES ON TEST REF. AMM 22-11-00, TEST PAJul 20, 2022 · N87513 · Boeing 737824SDR CALA2022071801803Altimeter · faultyCA ALTIMETER SKIPPING AROUND 100 FEET EITHER SIDE NEED NEW CAPT STATIC ADM, RRD CAPTS STATIC ADM, VERFIED Q/D, PERFORMED LOW LEVEL LEAK/OPS NOTED BLOCKAGE OR WATER IN SYSTEM & DRAINS. PERFORMED LOW RANGE CK, OPS CK NORMAL, SMOOTH UP AND DOWN NO SKIPPING. LEAK Jul 18, 2022 · N27734 · Boeing 737724SDR AALA202207132993Tat Probe · noneAIRCRAFT WAS GROUNDED: CAPTAIN AND FIRST OFFICERS AIRSPEED INDICATORS UNRELIABLE/ERRATIC AT FL330. OCCURRED 2 TIMES FOR APPROXIMATELY 5 SECONDS IN DURATION "AIRSPEED LOW" AURAL. WARNING WITH SECOND OCCURRENCE. V NAV DISCONNECTED ALTIMETER FLUCTUATED BY APPROXIJul 11, 2022 · N833NN · Boeing 737SDR AALA202207133770Air Data Module · noneAIRCRAFT WAS GROUNDED: CAPTAIN AND FIRST OFFICERS AIRSPEED INDICATORS UNRELIABLE/ERRATIC AT FL330. OCCURRED 2 TIMES FOR APPROXIMATELY 5 SECONDS IN DURATION "AIRSPEED LOW" AURAL. WARNING WITH SECOND OCCURRENCE. V NAV DISCONNECTED ALTIMETER FLUCTUATED BY APPROXIJul 11, 2022 · N833NN · Boeing 737SDR CALA2022060101413Saaru · unserviceableSAARU FAILURE EEC ENG LR FAILURE PERFORMED BITE TEST PER TASK 34-21-00-810-898. FAULTED SAARU. R&R SAARU IRW AMM 34-21-02 OPS CHECK OK NO ACTIVE MSG OK TO CONT. ADD EMP:U297597 ADD FAULT:34-38820 ROTABLE PARTS CHANGE WAS INDICATED - TT # 1135264 SN OFF 0304 UJun 1, 2022 · N79011 · Boeing 777224SDR ABXA202253060None · out of toleranceFMC DROPPED WPT NAVIGATING TO ON CLIMB OUT RE ENTERED AND ACTIVATED ROUTE 2 WPT NAV DROPPED A SECOND TIME. CREW ELECTED TO PERFORNM AN AIR TURNBACK.AIRCRAFT LANDED WITHOUT ANY FURTHER INCIDENCE. AIRCRAFT WAS GROUNDED BY MAINTENANCE. MAINTENANCE FOUND EXCESSIVEMay 30, 2022 · N317CM · Boeing 767SDR CALA2022050201122None · faultySPD LIM AMBER FLAG ON CA SIDE. STICK SHAKER INTERMITENT. HORIZO NTAL FD INOP DURING CLIMBOUT. REMOVED AND REPLACED CAPTAIN SIDE (LEFT) AOA SENSOR REF AMM AOA PARTS ENTRY 34-21-05 UP TO AND INCLUDING STEPS G. (7). NEXT STEP IS (8) ROTABLE PARTS CHANGE WAS INDIMay 2, 2022 · N11206 · Boeing 737SDR 9JLA2022031431156Indicator · defectiveTHE FLIGHT CREW REPORTED THAT THE STANDBY ATTITUDE INDICATOR PRECESSING IN SMOOTH AIR LEVEL FLIGHT 20 DEGREES NOSE DOWN AND 19 DEGREES BANK AFTER 28 MINS IN FLIGHT. THE MAINTENANCE TEAM DETERMINED THAT THE STANDBY ATTITUDE INDICATOR WAS DEFECTIVE AND WAS REPLAMar 9, 2022 · N15CF · Lear 45LEARSDR N6WA2022021602Computer · false indicationENROUTE- PITCH FEEL FAULT STATUS, YD 2 INOP. DESCENT- L/R FADEC FAULT 2, RUDDER LIMITER FAULT, FO SIDE SHOWING MASSIVE ERRORS FLICKERING FLAGS, TRIED TO SELECT ATTD2/HDG AND AIR DATA TO 1 WITH SIMILIAR RESULTS. SWAPPED CAPT' AND FO'S AHRS COMPUTER IAW CRJ 550 Feb 14, 2022 · N556GJ · Cndair CL600*SDR AALA202201211079Aoa · faultyAIRCRAFT WAS GROUNDED: INTERMITTENT FAILURE OF LH PRIMARY FLIGHT DISPLAY SPEED AND ALTITUDE FLAGS. REPLACED LH AOA SENSOR IAW AMM 34-21-00, OPS CHECK GOOD.Jan 20, 2022 · N324RA · Boeing 737*SDR IPXA2021122877347None · noneINSPECTION TYPE:N/A** ATB ** AFTER TAKEOFF AT APPROXIMATELY 300' AGL "IAS DISAGREE MESSAGE".R/R L ADIRU IAW AMM 34-25-01. OPS TEST OK.Dec 28, 2021 · N617UP · Boeing 7478FSDR ABXA20211115112None · noneAFTER BLOCK OUT C IRS FAULT EICAS MESSAGE AND FAULT LIGHT ON OVERHEAD. AICRAFT RETURNED TO BLOCK AND WAS GROUNDED BY MAINTENANCE. MAINTENANCE DEFERRED C IRS PER MEL 34-21-1C. ALL MX PROCEDURES C/W. PLACARDS INSTALLED. AIRCRAFT RETURNED TO SERVICE.Nov 15, 2021 · N783AX · Boeing 767281SDR 9JLA2021111030045Display · failedTHE FLIGHT CREW REPORTED THAT DURING AIRCRAFT POWERUP THE STANDBY ATTITUDE INDICATOR FAILED TO INITIATE. THE MAINTENANCE TEAM REMOVED THE FAILED SECONDARY FLIGHT DISPLAY AND INSTALLED A REPAIRED UNIT. OPS CHECKS WERE SATISFACTORY AND THE AIRCRAFT WAS RETURNED Nov 10, 2021 · N12MW · Amd FALCON2000EXSDR DBCA202108260003Vertical Gyro · failedON TAXI OUT CREW NOTED AIRCRAFT ATTITUDE MISCOMPARE. AIRCRAFT RETURNED TO BLOCK. MAINTENANCE DETERMINED #2 VERTICAL GYRO HAD FAILED. #2 VERTICAL GYRO REPLACED WITH OVH UNIT. OPERATIONAL TEST OF #2 VERTICAL GYRO GOOD.Aug 26, 2021 · N265CM · Cessna 560CESSNASDR CALA2021081801361Adiru · faultedCA DG FAIL AFTER T/O PERFORMED ADIRU BITE FOUND 7 FAULTS RELATED TO #1 ADIRU. REMOVED AND REPLACED #1 ADIRU REF AMM 34-21-01 ALL TESTS PASSED. PERFORMED LAND VERIFY REF AMM 22-11-00. ALL TESTS PASSED ACFT REMAINS "NO AUTOLAND" STATUS DUE TO L/P 6869206 A/T MELAug 17, 2021 · N38473 · Boeing 737900ERSDR AALA202107138375Air Data Module · inoperativeAIRCRAFT WAS NOT GROUNDED: AT FLIGHT LEVEL 360 CAPTAIN LOST INDICATED AIR SPEED MC ENGINE LIGHT ILLUMINATED AFTER SEVERAL MINUTES INDICATED AIR SPEED RETURNED AND MC ENGINE LIGHT WENT OUT. FLIGHT DIVERTED TO DFW ON ACCOUNT OF FAULT. EMERGENCY WAS NOT DECLARED Jul 10, 2021 · N804NN · Boeing 737823SDR CALA2021061400869Adiru · inoperativeIRS-L INOP REMOVED & REPLACED LEFT ADIRU PER AMM 34-21-01-400-801 , OPS CKD PER AMM 34-21-00-710-801, PASSED LAND VERIFY TEST PER AMM 22-11-00-700-801. NO FAULTS OPS CKD NORMAL. ROTABLE PARTS CHANGE WAS INDICATED - TT # 1171588 SN OFF 5038 UNIT, ADIRU, AI OFJun 14, 2021 · N73251 · Boeing 737824SDR A6WA202102227667Indicator · malfunctionedATTITUDE INDICATION SHOWS 5 DEGREE BANK IN LEVEL FLIGHT AND LT MFD AHARS APPROX 1 DEGREE EVERY 20 SECONDS. FLIGHT DIVERTED TO KORD. AIRCRAFT REMOVED FROM SERVICE. REMOVED STBY ATTITUDE INDICATOR TO FOM, CHECKED FOR VOLTAGE AT CONNECTOR P1FD PIN A SHOWS 27 VFeb 20, 2021 · N456ZW · Cndair CL6002B19SDR IPXA2021020265235Indicator · inoperativeINSPECTION TYPE:NA**DIVERSION - EMERGENCY DECLARED WITH ATC-ARFF ADVISED OF HAZMAT INFO- AC LANDED W/OUT INCIDENT** DURING CLIMBOUT, CAPT'S PFD SHOWED CHK POS AND CAPT'S ATTITUDE INDICATOR HEADING AND VERTICAL SPEED WERE 180 OUT. FO HAD AMBER ATT ON FO'S PFD.Feb 1, 2021 · N288UP · Doug MD11FSDR YV3R2021020400430Indicator · defectiveCUSTOMER REPORTED ATTITUDE INDICATOR P/N: B823-12 WAS READING INACCURATELY.Jan 20, 2021 · Robsin R44RAVENIISDR AALA202101199019Display · failedAIRCRAFT WAS GROUNDED. ATTITUDE PORTION OF INTEGRATED STANDBY FLIGHT DISPLAY FAILED IN CRUISE AND WOULD NOT RESET. FLIGHT RETURNED TO FIELD, NO EMERGENCY DECLARED. REPLACED ISFD WITH SERVICEABLE UNIT, IAW AMM 34-24-02. OPERATIONS CHECK GOOD.Jan 17, 2021 · N717AN · Boeing 777323ERSDR QXEA2020083000267Ahrs · malfunctionedAT CRUISE ELEVATOR FEEL MASTER CAUTION, AUTOPILOT DISENGAGED, AHRS2 FAILED. DIVERTED, LANDING UNEVENTFUL. REMOVED FROM SERVICE. INTERROGATED CDS, FOUND 'NO DATA FROM AHRS2' MESSAGE. REMOVED AND REPLACED #2 AHRS IAW MTC 6342101. C/W OPS TEST OF ELEVATOR CONTRAug 28, 2020 · N453QX · Bombdr DHC8402SDR F3OR202006160001Gyro · false indicationINTERMITTENT ATTITUDE FAILURE OF THE KI300 HORIZON INDICATOR. PRIMARY ATTITUDE INDICATOR INTERMITTENTLY AND WITHOUT WARNING INDICATES ERRONEOUS PITCH AND ROLL ATTITUDES AND ALSO, WHEN INTERFACED TO THE AUTOPILOT CAUSES THE AUTOPILOT TO DEVIATE FROM ITS INTENDEMay 26, 2020 · N201AT · Mooney M20JSDR SWAA2020052179591Module · unreliablePRIOR TO OUR DESCENT AT FL 330; WE GOT AN IRS DISAGREE ALERT ON OUR PFS'S. RAN THE APPROPRIATE CHECKLISTS AND DETERMINED THAT THE F.O.'S AIRSPEED WAS UNRELIABLE. THE ALERT WENT OUT AND CAME BACK SEVERAL TIMES DURING DESCENT. AIRSPEED FLUCTUATED FROM 275 TO 80 May 11, 2020 · N7735A · Boeing 7377BDSDR UIEA2020041700757Eadi · malfunctionedCA PFD, EICAS, FO PFD WENT BLANK. FIRE MARSHALL SMELLED SMOKE IN COCKPIT.(<P>REPLACED CA EADI & EHSI. REPLACED F/O EADI AND UPPER EICAS SCREENS IAW AMM 31-41-01. CKS GOOD. C/W SMOKE INSPECTION IAW AMM 05-51-56, NO SMOKE/ FUMES PRESENT.</P><P>OFF: P/N 622-7999-Apr 16, 2020 · N652GT · Boeing 767231SDR SWAA2019121239560Reference Unit · faultyDIVERSION/DECLARED EMERGENCY-------------------------------------------------------------AT FL400 INDICATED AIR SPEED DISAGREE FLAG ON PRIMARY FLIGHT DISPLAY +- 5-6 KTS BETWEEN CAPTAIN/FIRST OFFICER/STANDBY AIR SPEED. DURING DESCENT CAPTAINS AIR SPEED GRADUALLDec 11, 2019 · N781WN · Boeing 7377H4SDR SWAA2019110738678Display · inoperativeRIGHT AFTER TAKEOFF, F/O SIDE FAILURES WERE: NO DATA ON COMPASS ROSE, NO HEADING BUG ON PFD OR ND, NO LATERAL FLIGHT DIRECTOR, NO SPEED TREND VECTOR, ALSO TCAS FAIL ILLUMINATED. / REPLACED ISDU IAW AMM 34-21-02 AND ACCOMPLISHED FIM TASK 34-21 TASK 808. ALL CHENov 5, 2019 · N8314L · Boeing 7378H4SDR AALA201905199006Gyro · faultyAIRCRAFT WAS GROUNDED: PILOT REPORTS INTERMITTENT AUTOPILOT PITCH MOVEMENT TWITCHING IN SMOOTH LEVEL FLIGHT. NOTE: UPON DESCENT FD BARS & AIRCRAFT (GOLD TRIANGLE SYMBOL) STAYED TOGETHER BUT PITCHED UP & DOWN RELATIVE TO THE HORIZON AND AUTOPILOT FOLLOWED THIS May 18, 2019 · N501AA · Doug DC982SDR YV3R2019012200057Gyro · precessesCUSTOMER REPORTED ATTITUDE HORIZON P/N: B823-4R HAS PRECESSION.Mar 16, 2019 · N123MV · Robsin R44RAVENIISDR 9EKA20190125001Sensor · inoperativeROLL SCAS KICKED OFF IN FLIGHT AND WOULD NOT RE-ENGAGE.Jan 25, 2019 · N823H · Bell 214STSDR UIEA2018111632587Adi · inoperativeDURING TAXI OUT CA ADI BLANKED, ALTN EFI DID NOT RETURN SCREEN WE THEN HAD ELECTRICAL SMOKE / BURNING SMELL. SUBSEQUENTLY LOST CA HSI AND UPPER EICAS SCREENS (<P>REMOVED ADI & HSI(CAPT) FOUND WATER BLOWING INTO DISPLAYS. REMOVED & RESEATED EICAS-DISPLAY OPERATNov 13, 2018 · N657GT · Boeing 767281SDR HALA201809140421Indicator · malfunctionedSTANDBY ADI UNCAGES AUTOMATICALLY. REPLACED THE STANDBY ATTITUDE INDICATOR. GROUND OPS CHECKED OK IAW AMM 34-24-01.Sep 13, 2018 · N580HA · Boeing 76733ASDR QMLA201808218098Vertical Gyro · inoperativeAIRCRAFT BEGAN TO MAKE LEFT AND RIGHT UN-COMMANDED ROLL INPUTS. THE INPUTS INCREASED IN AMPLITUDE AND RATE OVER THE COURSE OF THE NEXT TWO MINUTES. NO AIRCRAFT CAUTION INDICATIONS CAME ON, ISOLATED THE INPUTS USING SAS SWITCHES, ONCE SAS 2 WAS SWITCHED OFF, TAug 20, 2018 · N951AL · Agusta A109ESDR HALA2018081600380Display · malfunctionedSTANDBY ATTITUDE INDICATOR LEFT HALF HAS GREY VERTICAL LINES TOP TO BOTTOM. REMOVE AND REPLACED STDBY FLT DISPLAY INDICATOR IAW AMM 34-23-03. OPS CHECKED GOOD. NO FAULTS NOTED. OK FOR SERVICE.Aug 15, 2018 · N590HA · Boeing 7673CBSDR DALA2018010300073Eadi · malfunctionedSMALL AMOUNT OF SMOKE IN COCKPIT, QUICKLY DISAPPEARED CAUSED BY CAPTAIN'S EADI. REPLACED EADI.Jan 3, 2018 · N195DN · Boeing 767332SDR 2017FA0000454Indicator · failedINSTALLED G5 ATTITUDE INDICATOR AS REPLACEMENT FOR VACUUM ATTITUDE INDICATOR. REMOVED VACUUM SYSTEM. UNIT FAILED 8 HOURS AFTER INSTALLATION. MANUFACTURER REPAIRED THE UNIT, SO FAR WORKING PROPERLY.Jul 2, 2017 · N1193V · Amrgen AG5BSDR UIEA2017070301105Indicator · inoperativeSTANDBY ATTITUDE INDICATOR INOPERATIVE. REPLACED THE STANDBY ATTITUDE INDICATOR IAW AMM 34-24-01-004-001 AND 34-24-01-404-005 REV 89. PERFORMED STBY ATT INDICATOR INSTALLATION TEST AND THE RESULT WAS SATISFACTORY IAW AMM 34-24-01-4040-005 REV 89.Jul 1, 2017 · N718BA · Boeing 7474H6SDR DALA2017042003258Warning Message · multiple failDURING TAKEOFF ROLL HEADING COMPARATOR DISPLAYED WITH HEADING OFF 3 DEGREES. AFTER ROTATION CAPTAINS HEADING OFF 60 DEGREES AND ATTITUDE 45 DEGREES OFF. WINDSHEAR WARNINGS AND MAP FAILED ON NR 2. RETURNED TO DEPARTURE. FALSE WINDSHEAR WARNING ON FINAL. REPLAApr 19, 2017 · N963DL · Doug MD88SDR JJBA20161130001Ahrs · inoperativeBOTH EADI DISPLAYED ERRONEOUS INFORMATION IN FLIGHT. R & R THE NR 1 AHRU, OPS CHECKED GOOD.Nov 30, 2016 · N365PH · Dhav DHC8202SDR 2017FA0000442Indicator · malfunctionedPROCESSING NEVER STOPPED. PREVIOUS UNIT FAILED WITH A FLAG.Nov 23, 2016 · N33NJ · Lear 45LEARSDR 2017FA0000441Indicator · malfunctionedOFF FLAG DOES NOT RETRACT AFTER OR BEFORE 3 MINUTE TIME LIMIT UPON POWER UP.Nov 23, 2016 · N33NJ · Lear 45LEARSDR FWTA201609260001Eadi · malfunctionedCAPTAIN`S EADI WENT BLANK. PRODUCED SMOKE IN THE COCKPIT AND TRIPPED CB.Sep 22, 2016 · N418LA · Boeing 767346SDR HNAA2016091600283Eadi · malfunctionedF/O EADI WENT BLANK AND CB 6F WAS TRIPPED. RESET CB 6F AND C/W OPS CK OF EHSI. OK FOR SERVICE.Sep 14, 2016 · N335EN · Dhav DHC8311SDR AALA20160907009Display · faultyCREW REPORTED THE STANDBY ATTITUDE INDICATION FAILED. A RESET WAS ATTEMPTED BUT DID NOT RESOLVE THE ISSUE. EMERGENCY DECLARED. LANDING UNEVENTFUL. MAINTENANCE REMOVED AND REPLACED THE INTEGRATED STANDBY FLIGHT DISPLAY IAW AMM 787-81205-A810-00. OPERATIONAL CSep 5, 2016 · N811AB · Boeing 7878SDR WX0A2016051673154Vertical Gyro · failedON CLIMB OUT AUTOTHROTTLES, AUTOPILOT, FLIGHT DIRECTOR & FMA'S FAILED. FLIGHT RETURNED & PRIOR TO LANDING ALL SYSTEMS RETURNED TO NORMAL. WO 299267 TO R & R NR 1 & 2 VERTICAL GYROS IAW AMM 34-23-01. PERFORMED RTS IAW AMM 22-01-05. TEST IS GO.May 13, 2016 · N861GA · Doug DC983SDR QMLA2016051116048Vertical Gyro · unserviceableDURING CRUISE FLIGHT, APPROX 30 MINS INTO THE RETURN LEG, EXPERIENCED A SINGLE & SEVERE JERK & BUMP THROUGH THE ACFT. THE PILOT CONSIDERED THE BUMP SEVERE ENOUGH TO WARRANT CHANGING COURSE TOWARDS THE NEAREST SUITABLE LANDING AREA. AFTER 3 MINS OF FLIGHT THEMay 11, 2016 · N603CF · Agusta A119SDR WX0A2016040173126Vertical Gyro · faultyDURING BANKING LEFT TURN, CAPTAINS ATTITUDE MADE UNCOMMANDED FURTHER BANK & CLIMB FOLLOWED BY DFGC 1 FAIL, CAUSING AUTOPILOT & AUTO THROTTLES TO DISCONNECT. DFGC WAS SELECTED IAW QRH & AUTOPILOT & AUTO THROTTLES WERE REENGAGED. DURING NEXT TURN, DFGC 2 FAILEApr 1, 2016 · N418NV · Doug DC983
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