N1997A

Service difficulty reports · 374

Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. 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 n_number = 'N1997A' AND registry_match = 'registration'
  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 UIEA2021071001504Display · dimCAPTAIN'S WEATHER DISPLAY IS UNACCEPTABLY DIM DURING DAY LIGHT(<P>REMOVED AND REPLACED CAPTAIN EHSI INDICATOR ASSY IAW AMM 34-22-04. ALL INDICATIONS NORMAL. ACCOMPLISHED WXR SYSTEM AND OPERATIONAL TEST IAW AMM 34-43-00. OPS CHECK GOOD. NO FURTHER MX REQUIRED.<Jul 9, 2021 · N1997A · Boeing 76733A · Weather Radar SystemSDR UIEA2021071201522Warning Message · false activationRIGHT AFT CABIN TEMP DISPLAY 9 DEGREES WITH TEMPERATURE KNOB IN THE 2 OCLOCK POSITION.(<P>CYCLED ZONE TEMP INDICATION C/B IAW AMM 21-65-01. NO EICAS MESSAGES FOUND. ALL INDICATION NORMAL. NO FURTHER MX NEEDED.</P>)Jul 9, 2021 · N1997A · Boeing 76733A · Cabin Temperature Control SystemSDR UIEA2021062101397Check Valve · malfunctionedLEFT AC COMPT CHECK VALVE (BELOW ISO VALVE) MISFUNCTIONING(<P>REMOVED AND REPLACD LEFT AC CHECK VALVE IAW B767 36-11-05. OPS CK GOOD.</P>)Jun 19, 2021 · N1997A · Boeing 76733A · Cabin Cooling SystemSDR UIEA2021061601375Actuator · faultedAPU WILL NOT START 2 ATTEMPTS(<P>REMOVED AND REPLACED ECU DUE TO HARD FAULT ECU. OPS CHECK GOOD. REF: AMM 49-61-05. S/N OFF - 53-1057. P/N OFF - 2117342-20. REMOVED AND REPLACED APU AIR INTAKE ACTUATOR DUE TO APU ECU HARD FAULT. OPS CHECK GOOD. REF: AMM 49-15-Jun 16, 2021 · N1997A · Boeing 76733A · Airborne Auxiliary Power Unit (APU) SystemSDR UIEA2021061201337Warning Message · false activationDURING HIGH SPEED LATE DESCENT(ATC INSTRUCTIONS) ENCOUNTERED LIGHT TURBULENCE AND OVERSPEED WARNING CAME ON FOR A FEW SECONDS, 2 KNOTS ABOVE FOR 5 SECONDS.(<P>PER MX CTRL ACCOMPLISHED INSPECTION IAW B767 AMM 05-51-04-212-01, STEP 2C/2E. NO DEFECTS NOTED AT THIJun 12, 2021 · N1997A · Boeing 76733A · Central WarningSDR UIEA2021060301265Warning Message · false activationRIGHT PACK TEMP EICAS MESSAGE CAME ON IN FLIGHT. WE DID QRH PROCEDURE AND LIGHT WENT OUT.(<P>PERFORMED BITE TEST OF THE PACK SYSTEM, NO FAULT FOUND IAW B767 AMM 21-51-00-700-805-006 AND OPERATIONAL TEST IAW B767-300 AMM 21-51-00-700-806-006, NO FAULTS AT THIS Jun 2, 2021 · N1997A · Boeing 76733A · Cabin Cooling SystemSDR UIEA2021052401170Switch · failedAPU SWITCH SHOWS INCORRECT CONFIGURATION "OFF" WHEN IT SHOULD BE "VALVE". REMOVED AND REPLACED APU BLEED KORRY SWITCH IAW SWPM 20-84-13. OPS CHECK GOOD. VALVE INDICATION PRESENT.May 21, 2021 · N1997A · Boeing 76733A · Airborne Auxiliary Power Unit (APU) SystemSDR UIEA2021052101160Autothrottle Sys · faultedAUTOTHROTTLE CONSISTENTLY UP TO 20 KTS SLOWER THAN MCP SELECTED SPEED(<P>PERFORMED FIM 22-30 FAULT TREE 810 MCDP GROUND TEST 10, NO FAULTS AT THIS TIME. PERFORMED FIM 22-03 FAULT TREE 812 MCDP TEST 12. NO FAULTS AT THIS TIME. PERFORMED FIM 22-03 FAULT TREE 820May 21, 2021 · N1997A · Boeing 76733A · Auto Throttle SystemSDR UIEA2021042600999Indicator · dimSTANDBY ENGINE INSTRUMENTS VERY DIM AND HARD TO READ WHEN TURNED ON(<P>REMOVED AND REPLACED ENGINE STANDBY INDICATOR IAW AMM 77-41-01. OPS CHECK GOOD AT THIS TIME<BR /></P>)Apr 24, 2021 · N1997A · Boeing 76733A · Indicating/Recording SystemSDR UIEA2021041300880Engine · not reportedR GENERATOR OFF EICAS MESSAGE DISPLAY. TRANSFERED TO DMI # 145249, CAT B, DUE DATE 16 APR 21 IAW DDG 24-00-01-01. LOG PAGE 1465065: REMOVED AND REPLACED #2 ENGINE IAW AMM 71-00-00. OPS CK GOOD. THIS CLEARS MDDR 145249.Apr 12, 2021 · N1997A · Boeing 76733A · Engine (Turbine/Turboprop)SDR UIEA2021040300826Start Valve · malfunctionedDURING LEFT ENGINE START, LEFT ENGINE START VALVE DISCRETE LIGHT CYCLED AN AND OFF WHEN "GRD" WAS SELECTED. EICAS L ENG STARTER MSG WAS NOT DISPLAYED(<P>TRANSFERRED TO MDDR 144784 IAW MEL 80-00-01-01, CAT C, 3 APR 21</P>)Apr 3, 2021 · N1997A · Boeing 76733A · Engine Start Valves/ControlsSDR UIEA2021032600716Controller · malfunctionedAUTO PRESSURIZATION CNTRL 2 STARTED GETTING LARGE SWINGS IN CABIN RATE APPROACHING MAX DIFF THEN BACK DOWN(<P>RAN FIM 21-31 FT 803. RECEIVED CONTROLLER FAILURE ON CABIN AUTO 2. REMOVED AND REPLACED CONTROLLER IAW AMM 21-31-02. OPS CHECK NORMAL. STATUS MSG CLEAMar 25, 2021 · N1997A · Boeing 76733A · Cabin Pressure ControllerSDR UIEA2021031500566Manifold · defectiveUNSCHEDULED ENGINE CHANGE REQUIRED DUE TO DEFECT FOUND WITH FUEL MANIFOLD DURING EO 1972A725(<P ><SPAN>REMOVED AND REPLACED ENGINE PER WORK ORDER 78316.</SPAN></P>)Mar 16, 2021 · N1997A · Boeing 767* · Fuel Controlling SystemSDR UIEA2021031500568Aileron · damagedLH OTBD AILERON HAS STATIC DISCHARGE EVIDENCE ON OTBD TRAILING EDGE UPPER CORNER(<P ><SPAN>LH OTBD AILERON HAS BEEN / INSPECTED AND REPAIRED IAW B767 SRM 57-60-0201-1, 57-60-02-1A-1, 57-60-02-2R1, / 51-70-17</SPAN></P>)Mar 15, 2021 · N1997A · Boeing 767* · AileronsSDR UIEA2021022700425Plenum · damagedAPPROX 50 MIN INTO FLIGHT, SLIGHT VIBRATION FELT IN AIRFRAME. VIBRATION FELT EVERY 5 TO 6 MINS. LASTING APPROX.15 SECONDS. NO EICAS OR STATUS MESSAGES ASSCOCIATED. NO HIGH VIB INDICATION ON ENGINE. THE OUTFLOW VALVE APPEARS TO BE MOVING AND SEEMS TO COINCIDE WFeb 27, 2021 · N1997A · Boeing 76733A · Cabin Cooling SystemSDR UIEA2021022200404Wire · damagedREF AP-19149 NUMBER 1 AUTO PRESS CONTROL INOP. (AUTO CABIN PRESSURE CONTROL SYSTEMS, ONE INOPERATIVE ) (TRANSFER TO MDDR 142736, CAT C. DUE DATE 03MAR21, MEL NR 21-31-01A. PLACARD INSTALLED. 23 FEB21- LP 1068689 ITEM 4 - TPA - AP 19149 ACCOMPLISHED. REPLACEFeb 21, 2021 · N1997A · Boeing 76733A · Air Conditioning System WiringSDR UIEA2021021500312Relay · malfunctionedOUTFLOW VALVE CYCLES OPEN THEN CLOSES DURING CRUISE FLT EVERY 9 MIN IN AUTO NR 2 AND EVERY 2 TO 3 MIN IN AUTO NR 1. PERFORMED BITE TEST OF THE CABIN PRESSURE CONTROLLER. NO FAULTS ON NR 2. NR 1 FAULTS WITH AC POWER OFF. PERFORMED ENGINE RUN TO ENSURE PRSOVFeb 15, 2021 · N1997A · Boeing 76733A · Cabin Pressure Control SystemSDR UIEA2021021100280Controller · fluctuatesAT CRUISE AND ON DESCENT OBSERVED OUTFLOW VALVE FLUCTUATING. AUDIBLE FLUCTUATIONS IN PRESSURE AIR FLOW CHANGES. EAR POPPING. VALVE MOVED FROM 3/4 CLOSED TICK TO 1/2 TICK EACH TIME.(<P>REMOVED AND REPLACED #1 AUTO PRESSURE CONTROLLER IAW AMM 21-31-02. OPS CHECKFeb 11, 2021 · N1997A · Boeing 76733A · Cabin Pressure ControllerSDR UIEA2021020900255Controller · malfunctionedAT FL 400 CREW GOT A VIBRATION AND NOTICED RATE INDICATOR ON PRESS PANEL FLUCTUATING UP AND DOWN(<P>REF AP-19049, REPLACED OUTFLOW VALVE ASSY IAW AMM 21-31-03, OPS CK GD. REMOVED AND REPLACED #2 AUTO PRESSURE CONTROLLER IAW AMM 21-31-02 OPS CK GD.</P><P>VALVE Feb 9, 2021 · N1997A · Boeing 76733A · Cabin Pressure ControllerSDR UIEA2021020300214Anti-Ice Valve · inoperativeLEFT ENG ANTI-ICE VALVE REQUIRED COMPLETION OF QRH TO OPEN FOLLOWING ENGINE START. PERFORMED OPS TEST IAW AMM 30-21-00. OPS CHECK GOOD.Feb 2, 2021 · N1997A · Boeing 76733A · Air Intake Anti/De-Ice SystemSDR UIEA2021020300215Outflow Valve · fluctuatesOUTFLOW VALVE FLUCTUATES CABIN RATE +/- 100FPM EVERY 10-15 MINUTES. PERFORMED BITE TEST WITH NO FAULTS FOUND AND PERFORMED MANUAL MODE CONTROL TEST WITH NO DEFECTS FOUND IAW AMM 21-31-00.Feb 2, 2021 · N1997A · Boeing 76733A · Pressure Regulator/Outflow ValveSDR UIEA2021020100166Terminal · damaged"L ENG FIRE LP 1" EICAS MESSAGE. TRANSFERRED TO DMI 141760, PER DDG 26-11-01-01 CAT "C" DUE ON 11 FEB 21. REMOVED AND REPLACED LOWER AFT FIRE LOOP AND REPLACED TERMINAL END ON WIRE W5334-001R-16 WDM 26-11-11, IAW SWPM 20-10-13 AND AMM 26-11-02.Feb 1, 2021 · N1997A · Boeing 76733A · Fire Protection System WiringSDR UIEA2021020200194Controller · inoperativeCABIN AUTO INOPERATIVE CAUTION MSG. PERFORMED CABIN PRESSURE CONTROLLER BITE PROCEDURE IAW FIM 21-31 FAULT TREE 803. NO FAULTS FOUND. OPS CHECK GOOD.Feb 1, 2021 · N1997A · Boeing 76733A · Cabin Pressure ControllerSDR UIEA2021020100180Pump · slowRIGHT FWD FUEL PUMP IS SLOW TO MOVE FUEL. R &R RT FWD FUEL PUMP IAW AMM 28-22-03. OPS CHECK AND LEAK CHECK GOOD AT THIS TIME.Jan 29, 2021 · N1997A · Boeing 76733A · Fuel Boost PumpSDR UIEA2021020100179Pump · slowRIGHT AFT FUEL PUMP IS SLOW TO MOVE FUEL. R & R RT AFT BOOST PUMP. OPS CHECK GOOD. NO LEAKS NOTED. REF AMM 28-22-03.Jan 28, 2021 · N1997A · Boeing 76733A · Fuel Boost PumpSDR UIEA2021012600132Warning Message · activation errorTRIED TO CROSSFEED FUEL FROM RIGHT TANK TO LEFT ENGINE. AFTER LEFT TANK PUMPS OFF GOT FUEL PRESSURE WARNING AND BEEPER FOR ALL LT PUMPS. OPERATIONAL CHECK ACCOMPLISHED, PER AMM 28-22-00-215-715 -001. ALL VALVES OPERATED NORMALLY.Jan 25, 2021 · N1997A · Boeing 76733A · Fuel Boost PumpSDR UIEA2021011900089Pump · failedON LANDING, THE FUEL INDICATION SHOWS L: 8.3 C: 0.0 R: 10.7. FMC TOTALIZER AND CALCULATED FUEL ARE BOTH 19.0. SUSPECTED DISCREPANCY IN LEFT FUEL TANK MEASURING SYSTEM, THIS IS A REPEAT WRITE UP. REFERENCE LOG PAGE NR`S: 1349472, 1349467, 1246268, 1349452, 1Jan 18, 2021 · N1997A · Boeing 76733A · Fuel Boost PumpSDR UIEA2021011900078Warning Message · false activationLT ENGINE FIRE LP 1 EICAS MESSAGE. ITEM TRANSFERRED TO MDDR 140963, PER MEL 26-11-01-01 CAT "C". ACCOMPLISHED WITH FIM 26-11 F/T 804 EICAS INDICATION FIRE LOOP L-1 LEFT ENGINE WIRE CHECK. ALL SYSTEM OPERATIONS CHECKED NORMAL. PERFORMED VISUAL INSPECTION, AJan 15, 2021 · N1997A · Boeing 76733A · Fire DetectionSDR UIEA2021011900086Skin · dentedNR 1 ENGINE INLET HAS SEVERAL DENTS ON INNER BARREL SLEEVE. REMOVED AND REPLACED NR 1 ENGINE INLET COWL ASSEMBLY, IAW B767 AMM 72-33-02.Jan 14, 2021 · N1997A · Boeing 76733A · Turbine Engine Accessory DriveSDR UIEA2021010700016Eec · malfunctionedR ENG EEC EICAS MESSAGE ( ELECTRONIC ENGINE CONTROL (EEC) SYSTEMS, EEC NORM MODE (CF6 FADEC) )(<P>TRANSFERRED TO MDDR 140560 CAT C DUE DATE 16 JAN 21 MEL 73-21-01-03 CAT 3 RESTRICTED</P><P>DATE 7 JAN - LP 1246285 ITEM 3 - ONT- TROUBLESHOT PER FIM 73-21 FT 874 Jan 6, 2021 · N1997A · Boeing 76733A · Fuel Controlling SystemSDR UIEA2020123002632Fire Loop · out of positionLT ENGINE FIRE LP 1 MESSAGE. TRANSFERRED TO MDDR 140263, IAW MEL 26-11-01-01 CAT C DUE DATE 09JAN21. INSPECTED NR 1 ENGINE FIRE LOOPS, FOUND DETECTOR ELEMENT OUT OF GROMMET AT CLAMP AT O7:00 POSITION. REINSTALLED ELEMENT INTO GROMMET, IAW AMM 26-11-02. PERDec 30, 2020 · N1997A · Boeing 76733A · Fire DetectionSDR UIEA2020122702618Pimu · malfunctionedAFTER RT ENGINE START, RT ENGINE EEC IN ALT MODE. TRANSFERRED TO DMI 140096, IAW DDG/MEL 73-21-01-03. CAT C DUE 06JAN21. MCC NOTIFIED. PLACARD INSTALLED. A/C CAT III RESTRICTED. REMOVED AND REPLACED L ADC (OFF PART: PN 4040800-906, SN 93103896, PER FIM TDec 27, 2020 · N1997A · Boeing 76733A · Fuel Controlling SystemSDR UIEA2020122002597Shutoff Valve · leakingFUEL LEAK FOUND ON APU FUEL SHUT-OFF VALVE(V96). REPLACED APU SHUT OFF VALVE, IAW AMM 28-25-02. REMOVED & INSTALLED APU SHUT OFF VALVE ACTUATOR, PER AMM 28-25-02, S/N OFF: 67-862072, P/N OFF: AV-31-1. APU SHUT OFF VALVE LEAK CHECKS GOOD, IAW AMM 28-25-02. Dec 19, 2020 · N1997A · Boeing 76733A · Fuel Selector/Shut-Off ValveSDR UIEA2020113002481Indicator · inaccurateFLIGHT DECK TEMP VALVE INDICATES MAX COLD NO MATTER SELECTION. OPERATIONS CHECKED F/D VALVE POSITION INDICATOR 21-64-1. OPERATIONS CHECKS GOOD.Nov 29, 2020 · N1997A · Boeing 76733A · Cabin Temperature Control SystemSDR UIEA2020112502463Warning Message · false activationEICAS RT FWD FUEL PUMP. TRANSFER TO MDDR 138467 MEL 28-22-01 CAT C. PULLED & COLLARED P-61 G:18 C/B MX ACTION C/W. MCC NOTIFIED PLACARD INSTALLED. ITEM 2 RESET GFI, IAW AMM RIGHT AUX FUEL SYSTEM 28-22-00/001. THIS CLEARS MDDR 138467. C/B RESET, MCC NOTIFNov 24, 2020 · N1997A · Boeing 76733A · Fuel Boost PumpSDR UIEA2020112402455Door · out of limitsREPEAT WRITE UP IN CRUISE & DESCENT, LOUD RUMBLE OCCURS EVERY 5 MINUTES, SOUNDS LIKE IT IS ORIGINATING AFT OF FLIGHT DECK, GOES AWAY AFTER 1 MINUTE. C/W AP 18181, IAW 32-22-00 AND AMM 21-33-02, NO DEFECTS NOTED. ON VISUAL INSPECTION OF NOSE GEAR DOORS, NOSE Nov 23, 2020 · N1997A · Boeing 76733A · Cabin Cooling SystemSDR UIEA2020112402456Unknown · vibrationDURING CRUISE AND DESCENT TO FL 2000 VIBE AND NOISE EVERY 5-6 MINUTES. PERFORMED ZONAL GVI OF MEC 05-41-01. PRESSURIZED AIRCRAFT, IAW 05-51-24. COULD NOT DUPLICATE, NO DEFECTS NOTED.Nov 21, 2020 · N1997A · Boeing 76733A · Fuselage Structure (General)SDR UIEA2020111702410Connector · damagedNR 1 ENGINE FIRE LOOP 2 STATUS MESSAGE. FOUND PUSHED PIN ON CONNECTOR D4154B. RESEATED PIN 2. OPERATIONS CHECK GOOD, IAW AMM 26-11-01.Nov 16, 2020 · N1997A · Boeing 76733A · Fire Protection System WiringSDR UIEA2020111702407Fire Detector · malfunctionedNR 1 ENGINE FIRE LOOP 2 STATUS MESSAGE. ITEM M5, FOUND PUSHED PIN ON CONNECTOR D4154B, RESEATED PIN 2. OPERATIONS CHECK IS GOOD AT THIS TIME, IAW WDM 26-11-11 AND AMM OPERATIONS CHECK 26-11-01. REMOVED AND REPLACED FIRE LOOP LOWER FWD, IAW B767 AMM 26-11-02Nov 15, 2020 · N1997A · Boeing 76733A · Engine Anti-Icing SystemSDR UIEA2020110902362Warning Message · false activationAFTER LEFT ENGINE START LT ENGINE ANTI ICE EICAS MESSAGE WITH SWITCH ON. PERFORMED ENGINE ANTI ICE SYSTEM TEST, IAW AMM 30-21-00. PERFORMED ENGINE RUN, IAW AMM 71-00-00, OPS CK GOOD.Nov 8, 2020 · N1997A · Boeing 76733A · Central WarningSDR UIEA2020110902363Duct · blownAFTER RIGHT ENGINE START, RT ENGINE BLEED EICAS MESSAGE. ON INITIAL CLIMB STARTING AT APPROXIMATELY 500' AGL UNTIL 7000' MESSAGE RT ENGINE DUCT PRESS INDICATION WAS 0 PSI. PERFORMED FIM TASK 36-10-FT837 AND VISUAL INSPECTION OF PRSOV, PER AMM 36-11-09. FOUNNov 8, 2020 · N1997A · Boeing 76733A · Engine Bleed Air SystemSDR UIEA2020110902371Warning Message · false activationEICAS MESSAGE: RT PACK OFF, RT ENGINE BLEED OFF. PERFORMED ENGINE RUN AND OPERATIONAL TEST OF PRSOV (RT ENGINE), IAW AMM 71-00-00 AND AMM 36-11-09. OPERATIONS CHECK GOOD.Nov 7, 2020 · N1997A · Boeing 76733A · Central WarningSDR UIEA2020110902370Controller · malfunctioned"RT ENGINE HPSOV" EICAS DISPLAYED IN CRUISE AT FL350 AND 90 PERCENT N1. RT ENGINE HPSOV STATUS MESSAGE REMAINS AFTER QRH PROCEDURE COMPLETED. PERFORMED CONTINUITY, LIR AND DAR TESTS, PER B767 WDM 36-11-62 & 36-23-21 AND AMM 20-10-39 OF WIRING AT CONNECTORS DNov 4, 2020 · N1997A · Boeing 76733A · Pneumatic Distribution SystemSDR UIEA2020110102341Fire Loop · malfunctionedLT ENGINE FIRE LP 2" STATUS MESSAGE. LT ENGINE FIRE LP 2 PC CARD M682. REMOVED AND RESEATED PC CARD, FAULT STILL EXISTS. REMOVED LT ENGINE FIRE LOOP 2 PC CARD AND SWAPPED WITH RT ENGINE FIRE LP 2 PC CARD, IAW B767 AMM 26-10-01. FAULT STILL REMAINS, SWAPPEDOct 31, 2020 · N1997A · Boeing 76733A · Smoke DetectionSDR UIEA2020102902331Lanyard · damagedEMERGENCY ELT CORD UNRAVELLED (PORTABLE). REMOVED AND REPLACED PORTABLE EMERGENCY ELT, IAW AMM 25-64-00. OPERATIONS NORMAL AT THIS TIME.Oct 29, 2020 · N1997A · Boeing 76733A · Emergency Locator BeaconSDR UIEA2020101202223Selector Panel · malfunctionedOUTFLOW VALVE POSITION INDICATOR BACKLIGHTING INOPERABLE. REMOVED AND REPLACED CABIN PRESSURE SELECTOR PANEL ASSEMBLY, IAW AMM 21-31-01. OPERATIONS CHECK GOOD AT THIS TIME.Oct 11, 2020 · N1997A · Boeing 76733A · Cabin Pressure Control SystemSDR UIEA2020101202224Actuator · malfunctionedDURING CRUISE OUTFLOW VALVE BRIEFLY OPENED AND CLOSED, CREATING A RUBBLE/SHUDDER. PER T/S REMOVED AND REPLACED AUTO 1 CABIN PRESSURE CONT UNIT, IAW AMM 21-31-02. OPERATIONS CHECK GOOD. OFF PART: PN 21173888, SN 62-A0346. REMOVED AND REPLACED AUTO 2 CABIN POct 11, 2020 · N1997A · Boeing 76733A · Pressure Regulator/Outflow ValveSDR UIEA2020101102213Outflow Valve · malfunctionedWHILE CRUISE AT FL 390 CRUISE VALVE OPENED AND RUMBLE MULTIPLE TIMES. REMOVED AND REPLACED OUTFLOW VALVE ASSEMBLY, IAW AMM 21-31-01-004. OPERATIONAL TEST OK. REMOVED AND REPLACED CABIN PRESS SELECTOR PANEL ASSEMBLY, IAW AMM 21-31-04. OPERATIONS CHECK GOODOct 10, 2020 · N1997A · Boeing 76733A · Pressure Regulator/Outflow ValveSDR UIEA2020101202222Outflow Valve · malfunctionedINFO ONLY: DURING CRUISE AT 390FL AT ABOUT 6 MIN INTERVALS, THE OUTFLOW VALVE WOUD MOVE FROM A QUARTER POSTION TO HALF POSITION CAUSING THE A/C TO SHUDDER. IT HAPPENED CONTINUOUSLY. PERFORMED CABIN PESS TEST, IAW AMM 05-51-24, SYSTEM TEST OK. PERFORMED MANUOct 10, 2020 · N1997A · Boeing 76733A · Pressure Regulator/Outflow ValveSDR UIEA2020101302249Controller · faultedRT ENGINE HPSOV CAUTION MESSAGE IN CLIMBOUT, ASSOCIATED STATUS MESSAGE REMAINED AFTER CAUTION SELF CLEARED. REPEAT WRITE -UP. TRANSFERRED TO MDDR 135784 PER DDG 36-11-02 CAT C DUE 19OCT20 MX ACTION C/W. DISP NOTIFIED 1414 EH. REMOVED AND REPLACED NO 2 ENGIOct 9, 2020 · N1997A · Boeing 76733A · Pneumatic Distribution System
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