N317CM

Service difficulty reports · 104

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 = 'N317CM' 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 ABXA20261017471Autothrottle Sys · faultedAUTOTHROTTLES DISCONECTED @ CRUISE WITH NO INDICATION WHICH LEAD TO STALL RECOVERY 210 KNOTS BEGAN RECOVERY AND ESTIMATE 90 SECONDS RECOVERY FROM 330 TO 280 CREW DECLARED EMERGENCY AND RETURNED TO MIA (ATB) A/C LANDED AND MTX GROUNDED A/C PERFORMED STALL (AFTEOct 17, 2026 · N317CM · Boeing 767338 · Auto Flight SystemSDR ABXA20261004456Oxygen Mask · no testDURING SCHEDULED MTC, CAPT. OXYGEN MASK DOES NOT TEST PROPERLY.MTX REMOVED AND REPLACED CAPT OXYGEN MASK STOWAGE BOX IAW AMM 35-11-51. OPS CHK AND LEAK CHK GOOD.A/C RETURNED TO SERVICE .Oct 4, 2026 · N317CM · Boeing 767338 · Crew Oxygen SystemSDR ABXA20260912402Overheat Sys · false activationFIRE/OVHT SYS ON FINAL APPROACH. AC LANDED AND MTX GROUNDED A/C. PERFORMED OPERATIONAL CHECK I.A.W A.M.M B767 26-11-00. ALL FOUND NORMAL. UNABLE TO DUPLICATE FAULT, NO STATUS MESSAGE. AIRCRAFT REMAINS NO ETOPS AND RETURNED A/C TO SERVICE.Sep 12, 2026 · N317CM · Boeing 767338 · Overheat DetectionSDR ABXA20260821370Pitot Tube · defectiveDURING TAXI OUT CAPT. PITOT LIGHT ON OVERHEAD PANEL ILLUMINATED. A/C RETURNED TO THE GATE (BTB) AND MTX GROUNDED A/C. MTX REMOVED AND REPLACED CAPTAINS (LEFT UPPER) PITOT-STATIC PROBE PER B767 AMM 34-11-01. LEAK CHECK GOOD PER B767 AMM 34-11-00. AIRCRAFT REMAAug 21, 2026 · N317CM · Boeing 767338 · Pitot/Static SystemSDR ABXA20260812359Throttle · stiffSTIFF RESISTANCE FELT ON THROTTLE LEVERS. SLOW ACCELERATION AND RESPONSE DURING TAXI. A/C RETURNED TO THE GATE (BTB). MTX ACCOMPLISHED ACCELERATION AND DECELERATION TEST IAW B767 AMM 71-00-00. BOTH ENGINES WITHIN LIMITS. CYCLED THROTTLES MULTIPLE TIMES, NO RESAug 12, 2026 · N317CM · Boeing 767338 · Power LeverSDR ABXA20260507189Fire Loop · defectiveL ENG FIRE LP1 (EICAS S) APPEARED AFTER TAKEOFF. MTC PERF T/S PER FIM 26-11 FT 804, FOUND UPPER AFT LP 1 OUT OF LIMITS READING 10K OHMS. REMOVED AND REPLACED LH ENG UPPER AFT FIRE LOOP PER AMM 26-11-02. OPS CK GOOD FAULT CLEARED. A/C REMAINS NO ETOPS. A/C RETUMay 7, 2026 · N317CM · Boeing 767338 · Fire DetectionSDR ABXA20260506190Circuit Card · faultedMTC PERFORMED F/U-SWAP M681 AND M682 LH ENG FIRE DETECT CARDS AND LEAVE SWAPPED FOR EVALUATUION. SWAPPED CARDS M681 AND M682 IAW AMM 26-10-01 OPS CK GOOD. A/C REMAIN NO ETOPS. A/C RETURNED TO SERVICE.May 6, 2026 · N317CM · Boeing 767338 · Fire Protection System WiringSDR ABXA20260429179Fire Loop · faultedLEFT ENGINE FIRE LOOP 1 ON EICAS. MAINTENANCE DEFERRED. LT ENG FIRE LP 1 IAW MEL 26-11-1-1, PLACARD INSTALLED, MBCB 05/09/26. A/C REMAINS NO ETOPS. A/C RETURNED TO SERVICE.Apr 29, 2026 · N317CM · Boeing 767338 · Fire DetectionSDR ABXA20260427176Fire Warning · false activationDURING CRUISE, L ENG FIRE LP 1 STATUS MESSAGE. TROUBLE SHOOTING ACCOMPLISHED IAW FIM 26-11 FT 805 NO FAULTS OBSERVED, SYS OK FOR SERVICE. AIRCRAFT REMAINS NO ETOPS. A/C RETURNED TO SERVICE.Apr 27, 2026 · N317CM · Boeing 767338 · Smoke DetectionSDR ABXA20260426174Fire Loop · false indicationDURING PREFLIGHT CHK L ENG FIRE LOOP 1, STATUS MESSAGE, MTX GROUNED A/C . MTX PERFORMED B AMM 26-11-00 OPS CK NORMAL NO FAULTS. ACFT REMAINS ETOPS 180. AND RETURNED A/C TO SERVICE.Apr 26, 2026 · N317CM · Boeing 767338 · Smoke DetectionSDR ABXA20260414164Shutoff Valve · defectiveDURING TAXI AFTER ENG STARTS, NO PACK PRESSURE OBSERVED ON LT SIDE WITH ISOLATION SWITCHES CLOSED. ACFT RETURNED TO THE GATE (BTB) AND MTX GROUNDED A/C . R & R LT ENG PRSOV IAW AMM 36-11-09. PERFORMED VISUAL INSP TO LT ENG PRSOV CONNECTOR D22 IAW WDM 36-11-5Apr 14, 2026 · N317CM · Boeing 767338 · Cabin Cooling SystemSDR ABXA20260321121Indicator · malfunctionedSTANDBY DRIFT LEFT BANK UP TO 12' AND DOWN 11' PERFORM A ERECT ALIGN AND FAST ALIGN IN FLT, INSTRUMENT IMPROVE BUT STILL INDICATED A L BANK OF 5' TO 7' IN LEVEL FLIGHT.A/C PERFORMED AIR TURN BACK (ATB) , AND MTX GROUNDED A/C . TROUBLESHOT AND REMOVE AND REPLACMar 21, 2026 · N317CM · Boeing 767338 · Integrated Flight SystemSDR ABXA20260221075Tru · malfunctionedAPU FIRE LP I CREW DEFERRED PER MEL 26-15-1-1 PROBLEM IS POWER SWITCHING WITH RIGHT TRU.  REMOVED AND REPLACED RIGHT TRU REF AMM 24-32-01.  RIGHT DC POWER OPERATES NORMAL. ENGINE OH LOOP 1 CHECKS NORMAL REF B767 AMM 26-11-00.  AIRCRAFT REMAINS "NO ETOPS"RETURNFeb 21, 2026 · N317CM · Boeing 767338 · DC Rectifier/ConverterSDR ABXA20260206054Seal · missingDURING INSPECTION, FOUND FIRST AID KIT MISSING SECURITY SEAL. REMOVED AND REPLACED FIRST AID KIT IAW AMM 25-64-03. AIRCRAFT RETURNED TO SERVICE.Feb 6, 2026 · N317CM · Boeing 767338 · Emergency EquipmentSDR ABXA2025126322Fire Loop · fault messageRIGHT ENGINE FIRE LOOP 2 STAUS MESSAGE, MTX GROUNDED A/C AND DEFERRED RT ENGINE FIRE LOOP 2 IAW MEL ABX-26-11-1-1. A/C REMAINS NO ETOPS . AND RETURNED A/C TO SERVICE.Dec 6, 2025 · N317CM · Boeing 767338 · Smoke DetectionSDR ABXA20251031288Speed Brake · faultedDURING LANDING, AUTO DEPLOYMENT SPEED BRAKE ON THE GROUND INOP, NO LIGHTS OR EICAS MESSAGES. DEFERRED AUTO SPEEDBRAKE IAW MEL 27-62-1-1. CLEANED DEBRIS FROM SPEED BRAKE NO BACK CLUTCH ASSEMBLY. AUTO SPEED BRAKES CHECK GOOD PER B767 AMM 27-62-00. DI & PLACARDOct 31, 2025 · N317CM · Boeing 767338 · Drag Control SystemSDR ABXA20251015272Engine · smokeSMELL OF FUMES. SMOKE IN CKPT 5 MILES OUT. LANDED, TOWER SAW SMOKE OUT OF #2 ENG ON TAXI. FIRE MASTER CAUTION CAME ON. SHUT #2 ENG DOWN, FIRE MASTER CAUTION WENT OUT. FIRE & SMOKE SEEN BY FIRE CREW. A/C CURRENTLY IN WORK. AN UPDATED SDR REPORT WILL BE FILED Oct 15, 2025 · N317CM · Boeing 767338 · Engine (Turbine/Turboprop)SDR ABXA20251014269Skin · corrodedTHIS AIRCRAFT IS CURRENTLY UNDERGOING AN A-CHK IN CVG, AND MAINTENANCE FOUND THE RIGHT WING UPPER T/E PANEL #1 AT WS 906 AFT OF REAR SPAR TO BE BULGED UP WHERE IT ATTACHES TO THE T/E OF THE WING SKIN. AFTER THE PANEL WAS REMOVED, CORROSION FOUND ON T/E OF WINOct 14, 2025 · N317CM · Boeing 767338 · Wing, Plate/SkinSDR ABXA20251014268Beam · corrodedTHIS AIRCRAFT IS CURRENTLY UNDERGOING AN A-CHK IN CVG, AND MAINTENANCE FOUND THE RIGHT WING FIXED L/E NOSE BEAM AT OSS 500 TO BE BADLY CORRODED. THE CORROSION WAS REMOVED BY BLENDING, AND THE BLEND WAS BEYOND THE ALLOWABLE LIMIT GIVEN IN REF /A/. THERE IS NO ROct 14, 2025 · N317CM · Boeing 767338 · Wing Main, Frame StructureSDR ABXA20251013267Skin · corrodedTHIS AIRCRAFT IS CURRENTLY UNDERGOING AN A-CHK IN CVG, AND MAINTENANCE FOUND THE RIGHT WING UPPER T/E PANEL AT W.STA 433 TO BE BULGED UP WHERE IT ATTACHES TO THE T/E OF THE WING SKIN. AFTER THE PANEL WAS REMOVED, CORROSION WAS FOUND ON THE T/E OF WING SKIN PANOct 13, 2025 · N317CM · Boeing 767338 · Wing, Plate/SkinSDR ABXA202509041212Battery · inoperativeDURING SERVICE CHECK FOUND FLIGHT DECK EMERGENCY LIGHT L9803 (IN CEILING, ACROSS FROM EXIT SIGN) INOP FOUND BATTERY ON PWR SUPPLY M736 FAULTY. REPLACED AND OPS CK GOOD AIW B767 AMM SUPPLEMENTAL 33-51-00 RURNED TO SERVICESep 1, 2025 · N317CM · Boeing 767338 · Emergency LightingSDR ABXA20250901208Battery Pack · inoperativeDURING SERVICE CHECK FOUND FLIGHT DECK EMERGENCY LIGHT L9801 (BACK LEFT) INOP RELAMP NO HELP. "M736 BATTERY FAULTY" REPLACED BATTERY ASSY IAW B767 AMM SUPPLEMENTAL 33-51-00 OPS CK GOOD.RETURNED TO SERVICE.Sep 1, 2025 · N317CM · Boeing 767338 · Emergency LightingSDR ABXA20250830207Life Vest · expiredDURING SERVICE CHECK FOUND OBSERVER'S SEAT LIFE VEST INSPECTION DUE 09/01/2025. REMOVED AND REPLACED LIFE VEST IAW 25-62-00, SPEISIAL FREIGHTER SUPP. RETURNED TO SERVICEAug 30, 2025 · N317CM · Boeing 767338 · Life JacketSDR ABXA202504076070Module · defectiveON TAXI OUT, RUDDER RATIO LIGHT ILLUMINATED AFTER ENGINE START AND WOULD NOT EXTINGUISH. A/C RETURNED TO BLOCKS (BTB). VERIFIED SHUTOFF, SERVO, AND LVDT WIRING. FOUND MODULE FAULT BALL ON LEFT UNIT. REMOVED AND REPLACED THE LEFT RUDDER RATIO MODULE, REF. BApr 5, 2025 · N317CM · Boeing 767338 · Rudder Control SystemSDR ABXA202503184059Door · unlockedAFTER PUSHBACK DURING TAXI AND ENGINE START, PLANE CAME BACK TO GATE (BTB) DUE TO "MAIN CARGO DOOR" LIGHT ILLUMINATED. DURING CHECK, FOUND MAIN CARGO DOOR VENT WINDOWS OPENED AND "DOOR NOT LOCKED" LIGHT ON AT THE GALLEY PANEL. CYCLED MAIN CARGO DOOR IAW AMM 52Mar 14, 2025 · N317CM · Boeing 767338 · Cargo/Baggage DoorsSDR ABXA20250130026Control Cable · dirtyDURING TAXI CREW PERFORMED FLIGHT CONTROL CHECKS AND REPORTED FLIGHT CONTROLS BINDING WHEN TURNING YOKE TO THE LEFT , SAME WITH FLAPS 0+5. AC RETURNED TO THE GATE (BTB) AND MTX GROUNDED AC .PERFORMED GVI OF INBOARD AND OUTBOARD AILERON AND COMPONENTS. ALL LOOKJan 30, 2025 · N317CM · Boeing 767338 · Aileron Control SystemSDR ABXA20241113223Valve · faultedON PUSHBACK #2 ENGINE STARTED NORMALLY. DURING ATTEMPTED START OF #1 ENGINE, N1 REACHED 26%,N2 FUEL CUTOFF SWITCHED MOVED TO "RUN", BUT ENGINE VALVE FAILED TO OPEN. GOT "L ENG FUEL" EICAS MESSAGE AND "ENG VALVE" DISCREET LIGHT ILLUMINATED. AC RETURNED TO GATE Nov 13, 2024 · N317CM · Boeing 767338 · Fuel Controlling SystemSDR ABXA20240626124Engine · malfunctionedAFTER TAKE OFF, AND CLEANED UP CLIMBING THROUGH 4000'  AIRCRAFT HAD MODERATE AIRFRAME VIBRATION ON ENTIRE FUSELAGE. VIBRATIONS ON ENGINES WERE .9 (L) AND 1.5(R). CAME BACK TO CVG TO LAND - APPEARED NORMAL - TRIED TO GO TO MIA AND VIBRATION CAME BACK. RETURNED Jun 26, 2024 · N317CM · Boeing 767338 · Engine (Turbine/Turboprop)SDR ABXA20240620119Valve · warning messageLEFT HMG VAL STATUS MSG AFTER BLOCK OUT AC RETURNED TO GATE AND MAINTENANCE GROUNDED AC RIGHT HMG PREVIOUSLY DEFERRED IAW ABX-24-25-2-1F, FOLLOWED DEACTIVATION PROCEDURES IAW AMM 24-00-00, REMAINS ETOPS 180. STATUS MESSAGE CLEARED.RETURNED AC TO SERVICE . AND Jun 20, 2024 · N317CM · Boeing 767338 · Electrical Power SystemSDR ABXA2024060300420Unknown · vibrationAT LEVEL OFF FL290 HEARD A POP UNDER OUR FEET FOLLOWED BY NOTICEABLE VIBRATION.May 31, 2024 · N317CM · Boeing 767338 · Fuselage Structure (General)SDR ABXA2024052194Indicator · malfunctionedON TAXI OUT RUDDER TRIM FAILED TO MOVE TO THE RIGHT BUT MOVED TO THE LEFT . AC RETURNED TO BLOCK AND MAINTENANCE GROUNDED AC . TROUBLE SHOT AND CONFURMED RUDDER MOVEMENT, REMOVED AND REPLACED RUDDER TRIM INDICATOR IAW B767 AMM 27-28-05 OPS CHECK GOOD. MAINTENAMay 21, 2024 · N317CM · Boeing 767338 · Rudder Control SystemSDR ABXA2024040576Control Panel · faultyRIGHT STARTER CUTOUT EICAS MESSAGE AND #2 ENG START VALVE LIGHT ILLUMINATED ON TAXI OUT. REMOVED AND REPLACED START CONTROL PANEL IAW B767 AMM 80-11-51. OPS CHECK GOOD, PLACARDS REMOVED. A/C VERIFIED NO ETOPS. NO MAINT PROCEDURES REQUIRED.Apr 5, 2024 · N317CM · Boeing 767338 · Engine Starting SystemSDR ABXA2024040272Wire · damagedIN FLIGHT RT ENGINE SHUTDOWN & RT ENGINE FUEL VALVE EICAS MESS. ENGINE RUNNING NORMAL, ALSO FALSE EGT EXCEEDANCE. AIRCRAFT IS AOG. REMOVED W388-008-18 WIRE AND INSTALLED NEW WIRE FROM D4238P TO D4220J ALL PER B767 SWPM 20-10 REF B767 WDM 76-11-11. AC RETURNED Apr 2, 2024 · N317CM · Boeing 767338 · Engine Indicating System WiringSDR ABXA2024040300273Warning Message · illuminatedRT HYD QUANTITY LIGHT ON OVER HEAD, RT HYD EICAS MESSAGE (RT.00 RF) LIGHT. DEFERRED.Apr 2, 2024 · N317CM · Boeing 767338 · Hydraulic System, MainSDR ABXA202404030272Warning Message · false indicationIN FLIGHT RT ENGINE SHUTDOWN & RT ENGINE FUEL VALVE EICAS MESS. ENGINE RUNNING NORMAL, ALSO FALSE EGT EXCEEDANCE. AIRCRAFT IS AOG FOR TROUBLESHOOTING.Apr 2, 2024 · N317CM · Boeing 767338 · Central WarningSDR ABXA2024033171Control Module · faultyAPPROXIMATELY 25 MINS INTO FLIGHT THE EICAS DISPLAYED "R ENG SHUTDOWN" AND "R ENG FUEL VAL". IN-FLT START PARAMETERS WERE ALSO DISPLAYED. RIGHT "ENG VALVE" LIGHT ON CONTROL DISPLAYED CONTINUED PANEL. CONDUCTED T/S PER FIM 76-11 F.T. 813 R MEC REPLACEMENT REQUIMar 31, 2024 · N317CM · Boeing 767338 · Engine ControlsSDR ABXA2024012719Relay · malfunctionedDURING TAXI AFTER RIGHT ENGINE START, RIGHT ENGINE FUEL VALVE LIGHT AND "R ENG FUEL VAL" EICAS MESSAGE ILLUMINATED AC RETURNED TO GATE AND MAINTENANCE GROUNDED AC . MAINTENANCE DEFERRED ENGINE VALVE INDICATION IAW MEL ABX-73-21-3-1. RETURNED AC TO SERVICE ANDJan 27, 2024 · N317CM · Boeing 767338 · Fuel Controlling SystemSDR ABXA20231024205Unknown · unknownDURING TAXI AFT CABIN TEMP EICAS MSG. A/C RETURNED TO BLOCK GROUNDED BY MAINTENANCE DEFERRED SYSTEM IAW ABX- MEL 21-61-1-2. RETURNED AC TO SERVICE.Oct 24, 2023 · N317CM · Boeing 767338 · Cabin Temperature Control SystemSDR ABXA20230626136Floorbeam · corrodedDURING N317CM C-CHECK AT AIRBORNE (TAMPA), FWD CARGO COMP FLOOR BEAM UPPER CAP EXFOLIATED AT STA 701 LBL 48. REMOVED CORROSION IAW B767-300 SRM 51-00-02 ORIGINAL THICKNESS .100 REMOVED .030 REMAINING THICKNESS .070 TO BR OUT OF LIMITS IAW B767-300 SRM 53-00-07Jun 16, 2023 · N317CM · Boeing 767338 · Fuselage Main, Floor BeamSDR ABXA20230626135Support Beam · corrodedDURING N317CM C-CHECK AT AIRBORNE (TAMPA), THE FWD CARGO FLOOR SUPPORT BEAM (P/N 451T1604-2) AT STA 548, RBR 41.28 HAS CORROSION. THE DAMAGE WAS REMOVED BY BLEND-OUT PROCESS. THE FLOOR SUPPORT IS FABRICATED FROM 7075-T6511 AL ALLOY EXTRUSION (BAC1506-1898) PERJun 9, 2023 · N317CM · Boeing 767338 · Fuselage Structure (General)SDR ABXA2023010605Skin · crackedDURING ROUTINE LINE MAINTENANCE IN CVG MAINTENANCE DISCOVERED SKIN CORRODED WITH EVIDENCE OF CRACK @ STA 1234 S37R. REPAIRED SKIN IAW B767 SRM 53-00-01 REPAIR 12. AIRCRAFT RETURNED TO SERVICE.Jan 4, 2023 · N317CM · Boeing 767338 · Fuselage Structure (General)SDR ABXA20230104304Warning Message · illuminatedCENTER LEFT FUEL PUMP EICAS MESSAGE. AIRCRAFT BACK TO BLOCK AND GROUNDED BY MAINTENANCE. MAINTENANCE DEFERRED LEFT CTR. FUEL PUMP IAW MEL 28-22-2A. MAINT. PROCEDURES COMPLIED WITH. PLACARD INSTALLED. A/C REMAINS ETOPS 180. AIRCRAFT RETURNED TO SERVICE.Jan 3, 2023 · N317CM · Boeing 767338 · Fuel Boost PumpSDR ABXA20221012112Warning Message · false activationRUDDER RATIO EICAS CAUTION MESSAGE DISPLAYED AFTER ENG START. AIRCRAFT BACK TO BLOCK AND GROUNDED BY MAINTENANCE. MAINTENANCE PERFORMED BFIM 27-21 FT 804, NO DEFECTS NOTED AT THIS TIME. STARTED BOTH ENGINES. RUDDER RATIO LIGHT EXTINGUISHED AS REQUIRED. AIRCRAFOct 12, 2022 · N317CM · Boeing 767338 · Rudder Control SystemSDR ABXA202210132111Warning Message · false activationAFTER ENGINE START, RUDDER RATIO EICAS MESSAGE DISPLAYED. AIRCRAFT BACK TO BLOCK AND GROUNDED BY MAINTENANCE. MAINTENANCE RESET FLT CONTROL ELEC CIRCUIT BREAKERS IAW B767 AMM 27-09-11 AND 20-60-05. MESAGE CLEARED. AIRCRAFT RETURNED TO SERVICE.Oct 12, 2022 · N317CM · Boeing 767338 · Central WarningSDR ABXA2022101108109Acm · leakingRT ENG DUCT PRESS FLUCTUATES WITH ENG RUNNING AND BLEED AIR SW ON. SECONDARY INDICATIONS ON CABIN ALT, RATE, AND DIFF GAGES. CREW ELECTED TO DIVERT INTO CVG. LANDING WITH OUT FURTHER INCIDENT. AIRCRAFT WAS GROUNDED BY MAINTENANCE. MAINTENANCE FOUND R/H AIR CYOct 8, 2022 · N317CM · Boeing 767338 · Cabin Cooling SystemSDR ABXA20221007108Actuator · faultedAFTER PUSH SHUT DOWN APU AND GOT AN APU FUEL VALVE LGT WITH FAULT LGT. AIRCRAFT BACK TO BLOCK AND GROUNDED BY MAINTENANCE. MAINTENANCE REMOVED AND REPLACED APU FUEL ACTUATOR IAW AMM 28-25-02 OPS CK NORMAL A/C REMAINS ETOPS 180. AIRCRAFT RETURNED TO SERVICE.Oct 7, 2022 · N317CM · Boeing 767338 · APU Engine Fuel and ControlSDR ABXA20221005107Filter · contaminatedR ENG FUEL FILT EICAS MESSAGE AFTER TAKEOFF CREW PERFORMED AIR TURN BACK TO CVG. AIRCRAFT WAS GROUNDED BY MAINTENANCE. MAINTENANCE CONDUCTED T/S PER FIM 73-11 FT 803 FOUND DEBRIS IN FUEL FILTER OF RT ENGINE REPLACED FUEL FILTER PER AMM 73-11-02, LEAK CHECK OK.Oct 4, 2022 · N317CM · Boeing 767338 · Fuel Controlling SystemSDR ABXA2022072185None · noneRUDDER RATIO EICAS MSG AFTER BLOCK OUT. AIRCRAFT BACK TO BLOCK AND GROUNDED BY MAINTENANCE. MAINTENANCE RESET RUDDER RATIO MODULES AND TESTED RUDDER IAW B767 FIM 27-21 FT 804 OPS CHECKED GOOD NO DEFECTS NOTED. AIRCRAFT RETURNED TO SERVICE.Jul 21, 2022 · N317CM · Boeing 767 · Rudder Tab Control SystemSDR ABXA2022071681Servo Valve · faultedRUDDER RATIO DISCRETE LIGHT ILLUMINATED AS WELL AS RUDDER RATIO EICAS MESSAGE ILLUMINATED AFTER ENGINE START. AIRCRAFT BACK TO BLOCK AND GROUNDED BY MAINTENANCE. MAINTENANCE REPLACED RUDDER RATIO CHANGER SERVO VALVE IAW AMM 27-21-15. AIRCRAFT RETURNED TO SERVIJul 16, 2022 · N317CM · Boeing 767 · Rudder Tab Control SystemSDR ABXA2022071579None · faultyRUDDER RATIO EICAS MSG AFTER PUSH BACK. AIRCRAFT BACK TO BLOCK AND GROUNDED BY MAINTENANCE.MAINTENANCE REMOVED + REPLACED R RUDDER RATIO MODULE IAW B767 AMM 27-11-00. OPS CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.Jul 15, 2022 · N317CM · Boeing 767 · Rudder Tab Control System
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