JASC 2820

Service difficulty reports · 3,630

Reports filed under 2820 · Aircraft Fuel Distribution 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 = '2820'
  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 YENA2025091600940Transfer Pump · faultedFLT#1621, LHR-BOS. (ETOPS) "FUEL ACT XFR FAULT MESSAGE APPEARED ON ECAM; PRIMED ACT TRANSFER PUMP AND RESET THERMAL RELAY PER MM 28-25-00-869-002-A CHK OK FUEL TRANSFER OK PER 28-28-00."Sep 15, 2025 · N4073J · Airbus A321271NXSDR ABXA2025911223Transfer Sys · malfunctionedDURING CRUISE, UNWANTED FUEL TRANSFER FROM RIGHT MAIN TANK TO CENTER TANK DURING CRUISE. PROBLEM PERSISTED THROUGHOUT THE ENTIRE FLIGHT. PRESSURIZED FWD & AFT RH FUEL PUMPS FOR 1 HOUR PER FIM 28-21 F/T 821. NO FUEL TRANSFER OBSERVED. SYSTEM IS CONSIDERED OK ASep 11, 2025 · N362CM · Boeing 767338SDR IXXA20250908001Tube · dentedA DENT WAS FOUND DURING C-CHECK MAINTENANCE VISIT LOCATED INSIDE 532BB BETWEEN LOWER STRINGER L-6 AND L-7. THE DENT WAS MEASURED AS L=0.400" W=0.700" D=0.129". DENT TO BE RE INSPECTED AT NEXT C-CHECK TO BE CONSIDERED PERMANENTSep 8, 2025 · N1439A · Boeing 76733ASDR AALA202509082923Module · faultedAIRCRAFT WAS GROUNDED: NUMBER 2 AFT PUMP LOW PRESSURE LIGHT DISAGREES WITH PUMP SWITCH POSITION. REPLACED NUMBER 2 FUEL PUMP LOW PRESS SWITCH SWIR071 PER AMM 28-42-11 (AALA202509085404) AND FUEL SYSTEM MODULE P5-2 PER AMM 28-22-43 (AALA202509085404).Sep 6, 2025 · N905AN · Boeing 737823SDR IPXA2025090483839Transfer Valve · faultedSUSPECTED FUEL LEAK LEFT OUTER,FINAL FUEL LEFT OUTTER 5.88 RIGHT OUTTER 8.07 LEFT USED 10.99 RIGHT INNER 11.82 CTR 1.58 TRIM TANK EMPTY. FUEL REMAINING 38.2 FUEL USED 23.5 START FUEL WAS 62.2 PERFORMED OPERATIONAL CHECK OF FUEL PUMP SYS REF AMM 28-21-00/501 &Sep 3, 2025 · N167UP · Airbus A300F4622RSDR IPXA2025090383839Fuel Sys · faultedDIVERSION, EMERGENCY DECLARED. SUSPECTED FUEL LEAK LEFT OUTER, FINAL FUEL LT OUTTER 5.88, RT OUTTER 8.07 LT USED 10.99, RT INNER 11.82, CTR 1.58 TRIM TANK EMPTY. FUEL REMAINING 38.2 FUEL, USED 23.5 START FUEL, WAS 62.2 DEFERED AUTO FUEL FEED SYSTEM IAW MEL2Sep 3, 2025 · N167UP · Airbus A300F4622RSDR IXXA2025090300018Tube · dentedLEFT WING FUEL DISTRIBUTION TUBE HAS A DENT, LOCATED INSIDE 532BB BETWEEN LOWER STRINGER L-6 AND L-7Sep 3, 2025 · N1439A · Boeing 76733ASDR HALA20250902267Transfer Sys · faultedETOPS - FUEL AFT XFR FAULT. ON PREFLIGHT. REPLACED RIGHT INNER TANK INLET VALVE PER AMM 28-26-53-000. OPS TEST OK. OK FOR SVC.Aug 31, 2025 · N386HA · Airbus A330243SDR 2025FA0000604Servo · defectiveMOMENTARY ENGINE ROUGHNESS/VIBRATION/LOSS OF POWER. ENGINE FLUCTUATING 200-250 RPMS AT ALL RPM SETTINGS ON THE RAMP, DURING TAXI, AND DURING THE RUNUP. RAN THE ENGINE ROUGHNESS CHECKLIST WITH NO CHANGE. UNABLE TO GET A FIRM READING ON THE MAG DROP DURING RUNUPAug 25, 2025 · N256Z · Piper PA28181SDR AALA202508259233Transfer Sys · fault messageAIRCRAFT WAS NOT GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT DIVERTED TO HNL DUE TO THE FLIGHT CREW REPORTING THAT THEY RECEIVED FUEL ACT TRANSFER FAULT. THE FLIGHT CREW RAN THE CHECKLIST AND LANDED SAFELY AT HNL WITHOUT FURTHER INCIDENT. MAINTENANCE Aug 24, 2025 · N424AN · Airbus A321253NXSDR HALA20250822258Actuator · faultedETOPS - LINE SERVICE REPORTED RIGHT OUTER TANK NOT TAKING FUEL. REMOVED AND REPLACED RIGHT OUTER TANK FUEL INLET VALVE ACTUATOR (500QU2) PER AMM 28-25-57-400-801-A.Aug 21, 2025 · N374HA · Airbus A330243SDR YENA2025082200864Transfer Sys · faultedFLT# 073, JFK-EDI. (ETOPS) "AFTER DOORS CLOSED ECAM APPEARED FUEL ACT XFR FAULT ( CAUTION ON ECAM 5) ACT XFR FAULT (ACT) ); PER TSM 28-28-00-810-874-A FUEL DISTRUBUTION OUT AT TIME OF DEFFERAL WAS INCORRECT CAUSING MESSAGE TO APPEAR.FUEL DISTRIBUTION HAS BEENAug 21, 2025 · N2180J · Airbus A321271NSDR 2025FA0000602Servo · contaminatedMOMENTARY ENGINE ROUGHNESS/VIBRATION. CLIMBING OUT ON THE MISSED APPROACH AT CRQ, ENGINE LOST BETWEEN 200-400RPM AND BEGAN CHUGGING, I CHECKED MIXTURE WHICH WAS FULL RICH, LEANED SLIGHTLY, THE CHUGGING STOPPED. I THEN MOVED THE MIXTURE FULL RICH AND DID NOT ENAug 20, 2025 · N92228 · Cessna 172SSDR HALA20250818253Transfer Sys · faultedETOPS - BTB ON TAXI OUT ECAM FUEL AFT XFR FAULT. REMOVED & REPLACED LEFT INNER TANK INLET VALVE ACTUATOR PER AMM 28-26-53/400. OPS CHECK GOOD. OK FOR SVC.Aug 17, 2025 · N393HA · Airbus A330243SDR DXTA2025081504613Fuel Sys · out of balanceTHE FUEL QUANTITY INDICATED ON RIGHT GAUGE WAS SHOWING A COUPLE THOUSAND POUNDS MORE THAN IT ACTUALLY HAD. THE RESULT WAS INACCURATE FUEL TRANSFERRING LEADING TO FUEL IMBALANCE. THIS HAPPENED FOR 2 HOURS AND THEN RETURNED BACK TO NORMAL INDICATIONS. TROUBLEAug 15, 2025 · N148QS · Bombdr BD7001A10SDR 2025FA0000603Servo · contaminatedMOMENTARY ENGINE ROUGHNESS/VIBRATION/LOSS OF POWER. PILOT SQUAWK: PARTIAL LOSS OF ENGINE POWER RIGHT AFTER TAKEOFF, 200-300 RPMS, CAME BACK AFTER A COUPLE SECONDS BUT DID NOT WANT TO CONTINUE FLIGHT. FUEL SERVO REPLACED.Aug 7, 2025 · N1806M · Cessna 172SSDR COEA2025080702708Fuel Filter · faultedFLT 8737 GEG-YKM AIR TURNBACK NO EMERGENCY DECLARED. FUEL BYPASS LIGHT TURNED ON DURING CLIMB. MAINTENANCE REPLACED BOTH FUEL HEATER FILTERS. LEAK CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.Aug 7, 2025 · N708FX · Textrn 408SDR AALA202507290887Relay · faultyAIRCRAFT WAS GROUNDED: LEFT CENTER FUEL BOOST PUMP LOW PRESSURE LIGHT ON WITH PUMP ON AND FUEL IN THE CENTER. FOUND D876 CONNECTOR BAD THE D876 DISINTEGRATED UPON DEPINNING. REMOVED AND REPLACED D876 CONNECTER (AALA202507299443) AND FUEL SYSTEM MODULE P5-2 PANJul 25, 2025 · N932AN · Boeing 737823SDR AALA202507240024Fuel Sys · out of balanceAIRCRAFT WAS NOT GROUNDED: FUEL IMBALANCE THE CENTER TANK HAS MORE THAN 1000 LBS AND WINGS TANKS ARE NOT FULL. (OPEN).Jul 23, 2025 · N954NN · Boeing 737823SDR FXTA20250718001Pressure Switch · failedLOW FUEL PRESSURE ANNUNCIATOR WITH ENGINE RUNNING AND ELECTRIC BOOST PUMP ON.Jul 15, 2025 · N753BA · Cessna 208BSDR AALA202507172159Probe · faultyAIRCRAFT WAS GROUNDED: AFTER A COUPLE CENTER TANK ECAMS ON CLIMB OUT ORD ENTERED UNDERSEPARATE EMICS, GOT FUEL ECAM THAT ASKED IF FUEL LEAK SUSPECTED.ONLY A COUPLE HUNDRED LBS DIFFERENCE AT THAT POINT, ANSWERED NO AND CONTINUED CLIMB OUT. SEVERAL MINUTES LATERJul 13, 2025 · N834AW · Airbus A319132SDR HALA20250714211Actuator · faultedATB - AFTER TAKE OFF FUEL TRIM LINE FAULT. FAULTING TRIM TANK INLET VLV. CHANGED / R&R SINGLE MOTOR ACTUATOR IAW AMM 28-27-52-400-801-A. AC OK FOR SVC.Jul 11, 2025 · N5897K · Airbus A330343SDR DXTA2025071404195Sensor · faultedDURING CLIMB FUEL SCAV FAIL L CAS APPEARED AND THEN EXTINGUISHED AT LEVEL OFF FOR CRUISE. MAYBE 5 MINUTES LATER THE CAS REAPPEARED AND REMAINED UNTIL WE FOLLOWED THE QRH PROCEDURE WHICH HAS THE BOOST PUMPS BEING TURNED ON. CAS REMAINED EXTINGUISED FOR REST OF Jul 10, 2025 · N812QS · Textrn TEXTRON700SDR AALA202506307238Compensator · fault messageAIRCRAFT WAS GROUNDED: ON TAKEOFF, WITH 2200LBS IN CENTER TANK, WE NOTICED THE CENTER FUEL QUANTITY RAPIDLY DECREASING AS WE PASSED BY 7,000FT, CENTER TANK RAPIDLY FELL TO 0.0 LBS INDICATED. WE RECEIVED A FMS MESSAGE 'VERIFY GROSS WEIGHT AND FUEL' - WITH NO WAJun 27, 2025 · N991NN · Boeing 737823SDR AALA202506306150Probe · fault messageAIRCRAFT WAS GROUNDED: ON TAKEOFF, WITH 2200LBS IN CENTER TANK, WE NOTICED THE CENTER FUEL QUANTITY RAPIDLY DECREASING AS WE PASSED BY 7,000FT, CENTER TANK RAPIDLY FELL TO 0.0 LBS INDICATED. WE RECEIVED A FMS MESSAGE 'VERIFY GROSS WEIGHT AND FUEL' - WITH NO WAJun 27, 2025 · N991NN · Boeing 737823SDR AALA202506302917Probe · fault messageAIRCRAFT WAS GROUNDED: ON TAKEOFF, WITH 2200LBS IN CENTER TANK, WE NOTICED THE CENTER FUEL QUANTITY RAPIDLY DECREASING AS WE PASSED BY 7,000FT, CENTER TANK RAPIDLY FELL TO 0.0 LBS INDICATED. WE RECEIVED A FMS MESSAGE 'VERIFY GROSS WEIGHT AND FUEL' - WITH NO WAJun 27, 2025 · N991NN · Boeing 737823SDR G41A202506240422Pump · malfunctionedON 6/21/2025 N924 DEPARTED KEGE FLYING TO KMDW, ONCE AT CRUISE ALTITUDE, THE CAPTAIN NOTICED THE FUEL LOAD WAS STARTING TO BECOME IMBALANCED LEFT TO RIGHT. HE NOTICED THE RH FUEL STANDBY PUMP WAS ON AND WOULD NOT TURN OFF. TO PREVENT THE FUEL ISSUE FROM GETTINJun 21, 2025 · N924PS · Lear 60LEARSDR HALA20250620189Drain Mast · leakingETOPS - FUEL LEAK AT AFT DRAIN MAST. FOUND DURING REFUELING. FUEL LEAK ACTIVE ONLY DURING REFUELING. FOUND FUEL LEAK COMING FROM AFT PART OF DRAIN MAST. PERFORMED AMM 28-27-48-801-A UP TO STEP 5. FOUND TRIM TANK TRANSFER PUMP TO BE OPERATIONAL. NO DEFECTED NOTJun 20, 2025 · N378HA · Airbus A330243SDR CALA2025062005738Fuel Sys · out of balanceFUEL IMBALANCE AT CRUISE LOCKING UNLOCKING NO ACTIVE FAULT MSG OR FAULT HISTORY. CONFIRMED NO FUEL LEAK FROM AIRCRAFT, FUEL IMBALANCE FIM TASK 28-22 TASK 847 CARRIED OUT. CONFIRMED THE CENTER FUEL TANK OVERRIDE/JETTISON PUMP DOES NOT TRANSFER BETWEEN LEFT MAINJun 20, 2025 · N786UA · Boeing 777222SDR CALA2025062305780Fuel Sys · out of balanceFUEL IMBALANCE AT CRUISE, LOCKING UNLOCKING NO ACTIVE FAULT MSG OR FAULT HISTORY. CONFIRMED NO FUEL LEAK FROM AIRCRAFT, FUEL IMBALANCE FIM TASK 28-22 TASK 847 CARRIED OUT. CONFIRMED THE CENTER FUEL TANK OVERRIDE/JETTISON PUMP DOES NOT TRANSFER BETWEEN LEFT MAIJun 19, 2025 · N786UA · Boeing 777222SDR DXTA2025062003969Pressure Switch · faultedSHORTLY AFTER TAKEOFF WE GOT A AMBER FUEL PRES LOW LEFT ANNUNCIATOR, WE FOLLOWED THE QRH AND TURNED THE LEFT BOOST PUMP ON, AFTER A FEW MINUTES THE LIGHT WENT OUT AS WE CONTINUED TO CLIMB..A COUPLE OF MINUTES LATER THE SAME ANNUNCIATOR CAME BACK ON AND WE DID Jun 19, 2025 · N974QS · Cessna 680ASDR UIEA2025061500776Valve · faultedEICAS MESSAGE CHKLIST ENG FAIL LIGHT DISPLAYED FOLLOWED BY LT ENG AUTO SHUTDOWN. EICAS MESSAGE ENG FUEL VALVE LT DISPLAYED IN FLT. FOUND LT ENG FUEL SPAR VALVE CB TRIPPED & NOT RESETTABLE. R & R LT ENG FUEL SPAR VALVE ACTUATOR PER AMM 28-22-02 & AIPC 28-22-02Jun 14, 2025 · N761GT · Boeing 777FSDR AALA202506091647Transfer Sys · faultedAIRCRAFT WAS NOT GROUNDED: AIRCRAFT RETURNED TO DFW DUE TO THE FLIGHT CREW REPORTING A CENTER FUEL TANK LEFT TRANSFER FAULT ECAM MESSAGE DURING FLIGHT.THE AIRCRAFT WAS NOT OVERWEIGHT AND THE FLIGHT CREW DID NOT DECLARE AN EMERGENCY. THE AIRCRAFT LANDED AT DFW Jun 7, 2025 · N575UW · Airbus A321231SDR IPXA2025060974825Fuel Sys · out of balance**SUPPLEMENTAL SDR** FUEL STARTED L13.0 USED 7.2 = 5.8. LEFT GAUGE READS 5.4. FUEL STARTED R13.2 USED 7.7 = 5.5. RT GAUGE READS 6.2. FUEL IMBALANCE DID NOT AGREE WITH FUEL FLOWS IN CRUISE. PERFORMED OPS CHECK OF LH DEFUEL VALVE PER AMM 28-26-01. OPS CHECK GOODJun 6, 2025 · N454UP · Boeing 75724APFSDR IPXA2025060674825Fuel Sys · out of balance*** SDR FILED OPEN *** FUEL STARTED L13.0 USED 7.2 = 5.8. LEFT GAUGE READS 5.4. FUEL STARTED R13.2 USED 7.7 = 5.5. RT GAUGE READS 6.2. FUEL IMBALANCE DID NOT AGREE WITH FUEL FLOWS IN CRUISE. DEFERRING FUEL IMBALANCE WITH REF TO AMM 28-21-00-702-001.PAR. B.(5).Jun 6, 2025 · N454UP · Boeing 75724APFSDR AALA202505289256Fuel Sys · out of balanceAIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: AFTER TAKEOFF HAD A FUEL IMBALANCE OF OVER 1000LBS, FUEL WOULD NOT REBALANCE. AIRCRAFT AIR INTERRUPTED BACK TO AND LANDED SAFELY AT CLE. ACCOMPLISHED ENGINE FUEL FEED PUMPS FUNCTIONAL TEST, PER AMM 28-22May 25, 2025 · N875NN · Boeing 737823SDR AALA202505282559Interrupter · faultyAIRCRAFT WAS NOT GROUNDED: RIGHT CENTER FUEL TANK PUM LOW PRESSURE LIGHT ILLUMINATED WITH ENGINES RUNNING. CONFIRMED CENTER RIGHT PUMP UFI FAILURE, PER FIM 28-22-301. REMOVE AND REPLACED RUGHT CENTER (UFI)-UNIVERSAL FAULT INTERRUPTER, PER AMM 28-22-99. OPERTIOMay 25, 2025 · N962AN · Boeing 737823SDR HALA20250523147Actuator · faultedETOPS - ECAM FUEL ENG 1 LP VALVE FAULT ILLUMINATED ON TAXI OUT. INTERMITENT EVERY 10 SECS. RETURN TO GATE. REMOVED AND REPLACED ENG 1 LP FUEL VALVE ACTUATOR OPS CHECK OK AS PER AMM 28-24-51-000-803-A ECAM INDICATIONS NORMAL.May 22, 2025 · N4663K · Airbus A330243SDR HALA20250521144Isolation Valve · failedETOPS - FUEL TRIM TANK ISOL VALVE FAIL UNKNOWN. BITE TEST FAULTER 702QN (TRIM TANK ISO). REMOVED AND REPLACED TRIM TANK ISOL VALVE SMA PER AMM 28-27-52. BITE/OPS TEST GOODMay 20, 2025 · N370HA · Airbus A330243SDR CALA2025052104885Battery · expiredEMERGENCY FUEL SHUTOFF BATTERY REPLACE {B737-28-3-0190} - REMOVED AND REPLACED EMERGENCY FUEL SHUTOFF BATTERY ASSY REF AMM 28-22-14.PARTS USED: 27-2434-9-9002, QTY :1 ROTABLE PARTS CHG:TT # 1397112 SN OFF 0459 PN OFF 27-2434-9-9002 IPC REFERENCE # MFG SN OFF May 20, 2025 · N38458 · Boeing 737924ERSDR 2025FA0000363Fuel Filter · cloggedPILOT REPORTS FUEL FILTER CAS MESSAGE. UPON TROUBLESHOOTING AND INSPECTION FOUND EXCESSIVE DEBRIS AND DETERIORATION TO THE LH, RH, AND AUX FUEL TANKS.May 20, 2025 · N3W · Agusta AW139SDR 3GWA2025051900362Valve · leakingON THURSDAY 15 MAY 2025 GIV N163JW S/N 1071 DEPARTED KVNY GOING TO MMTL. DURING TAKEOFF ONE OF THE PASSENGERS NOTICED FUEL SPRAYING OFF THE OUTBOARD RIGHT WING. THE CREW CALLED ATC STATED THEIR PROBLEM AND ASKED TO RETURN TO KVNY, AT WHICH TIME THE TOWER DECLAMay 19, 2025 · N163JW · Gulstm GIVSDR AALA202505198132Pressure Switch · inoperativeAIRCRAFT WAS NOT GROUNDED: NIMBER 1 AFT FUEL PUMP LIGHT DOES NOT ILLUMINATE WHEN SWITCH IS TURNED OFF. CONFIRMED FAULT NUMBER 1 AFT FUEL PUMP ANNUNCIATOR LIGHT DOES NOT ILLUMINATE WITH SWITCH IN OFF POSITION. FUEL PUMP VERIFIED INOPERATIVE. REMOVED AND REPLAMay 15, 2025 · N879NN · Boeing 737823SDR DXTA2025051903501Ejector · defectiveFUEL DISTRIBUTION: UNABLE TO BALANCE FUEL UNDER NORMAL CONDITIONS, USING THE L TO AUX. REFERED TO QRH AND ACCOMPLISHED, BALANCED BY SLIPPING THE AIRCRAFT PER QRH GUIDANCE. CORRECTIVE ACTION; REPLACED LH FUEL TRANSFER EJECTOR PUMP IN REF. TO CL-650 AMM 28-15-0May 15, 2025 · N258QS · Cndair CL6002B16SDR DXTA2025051503463Cartridge · defectiveFUEL PUMP 1 FAIL YELLOW CAS: AT 400 FEET AGL ON DEPARTURE GOT A FUEL LO PRES CAS, WHICH QUICKLY WENT AWAY AND REPLACED BY A FUEL PUMP 1 FAIL YELLOW CAS AND A FUEL 1 FEED FAULT WHITE CAS. BOTH OF THOSE CAS MESSAGES REMAINED FOR THE REST OF THE FLIGHT AND THE FUMay 12, 2025 · N314QS · Emb EMB505SDR AALA202505151470Compensator · faultedAIRCRAFT WAS GROUNDED: FUEL BALANCING ISSUE SHORTLY AFTER LEVEL OFF BALANCING FUEL, FUEL KEPT GOING OUT OF BALANCE MULTIPLE TIME DURING FLIGHT. TROUBLESHOOTING PER FIM 28-41-00-810-807 FOR FAULT CODE 28-41208. CONFIRMED FAULTY NUMBER 2 TANK COMPENSATOR. REMOVMay 8, 2025 · N969NN · Boeing 737823SDR AALA202505091470Fuel Sys · out of balanceAIRCRAFT WAS GROUNDED: FUEL BALANCING ISSUE SHORTLY AFTER LEVEL OFF BALANCING FUEL, FUEL KEPT GOING OUT OF BALANCE MULTIPLE TIME DURING FLIGHT. TROUBLESHOOTING PER FIM 28-41-00-810-807 FOR FAULT CODE 28-41208. CONFIRMED FAULTY NUMBER 2 TANK COMPENSATOR. (OPEMay 8, 2025 · N969NN · Boeing 737823SDR HALA20250502120Actuator · faultedETOPS - FUEL AFT TRANSFER FAULT. BTB. FOUND RH INNER TANK INLET VLV ACTUATOR FAULTING 603QL2. REPLACED PER AMM 28-26-53. CHK OKMay 1, 2025 · N375HA · Airbus A330243SDR DXTA2025050203302Computer · malfunctionedACFT WOULD NOT TAKE FULL FUEL. ONLY GET 50000LBS ABOARD. NOTICED FUEL TRANSFER COMING ON RT TO LT, THEN COME ON AGAIN, SAME DIRECTION, & AGAIN. CHKD SYS FUEL PAGE & CG PUMPS ALTERNATING RUNNING FOR WING TO WING TRANSFER ALONG WITH TRYING TO BALANCE FUEL. HAApr 30, 2025 · N191QS · Bombdr BD7001A12SDR YENA2025043000456Actuator · failedFLT#623, JFK-LAX. (ETOPS) FUEL ACT TRANSFER FAULT ( AUTO TRANSFER SYSTEM (ACT) 1), 2) ADDITIONAL CENTER TANK(S) (ACT) ); REMOVED AND REPLACED ACT VENT-VALVE ACTUATOR (91QH) IAW AMM 28-28-72. ALL OPS TEST OK. NO FAULTS NOTED. MDDR CLEARED. MX-4 UPDATED. PLACAApr 28, 2025 · N2156J · Airbus A321271NX
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