N721TW

Service difficulty reports · 169

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 = 'N721TW' 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 DALA2026073104426Skin · damagedREPAIR TO RT WING UPPER SKIN COMMON TO DRAG FITTING ATTACHMENT REQUIRES SUPPLEMENTAL INSPECTIONS PER ERA 589150-14AD. C/W PER ERA 589150-14AD. (1725104) (AIRCRAFT GROUNDED).Jul 28, 2026 · N721TW · Boeing 757231 · Wing, Plate/SkinSDR DALA2026073104425Skin · damagedREPAIR TO LT WING UPPER SKIN COMMON TO DRAG FITTING ATTACHMENT REQUIRES SUPPLEMENTAL INSPECTIONS PER ERA 589148-14AD. C/W PER ERA 589148-14AD (1723576)(AIRCRAFT GROUNDED)Jul 27, 2026 · N721TW · Boeing 757231 · Wing, Plate/SkinSDR DALA2026022001231Pin · damagedSHIP 6810 EMERGENCY PATH LIGHTS INOP FROM ROW 37-44. CORRECTIVE ACTION: FOUND PIN PUSHED OUT OF CONNECTOR AT SEAT ROW 36. REINSERTED PIN AND LOCKED IN PLACE. ROWS 37-44 OPS CHECKS NORMAL. REF BOEING SWPM CHP 20. (8485887)Feb 18, 2026 · N721TW · Boeing 757231 · Light System WiringSDR DALA2026021801143Lens · damagedEMERGENCY EXIT SIGNS INOPERATIVE / LOCATIONS:604. R/R LIGHT LENS PN 10-1072-101 AT R2 DOOR. REF B757 AMM 33-51. OPS NORMAL. (1448012)Feb 12, 2026 · N721TW · Boeing 757231 · Emergency LightingSDR DALA2025102107698Inverter · odorDIV/DE- TO SLC DUE TO ELECTRICAL SMELL IN THE FLIGHT DECK AND STANDBY INVERTER MESSAGE. REPLACED STANDBY INVERTER.Oct 19, 2025 · N721TW · Boeing 757231 · AC InverterSDR DALA2025091206737Cover · looseEMERGENCY EXIT SIGN COVER LOOSE / LOCATIONS:604. ADJUSTED EXIT SIGN AT LOC 604 PER B757, AMM 33-51. (1192624)Sep 11, 2025 · N721TW · Boeing 757231 · Emergency LightingSDR DALA2025091106720Cover · looseEMERGENCY EXIT SIGN COVER LOOSE / LOCATIONS:604. INSTALLED EMERGENCY EXIT SIGN PER B757 AMM 33-51.OPS CHECK GOOD. (1190325)Sep 9, 2025 · N721TW · Boeing 757231 · Emergency LightingSDR DALA2025070805103Lanyard · out of positionSHIP 6810 4R DOOR WILL NOT ARM. CORRECTIVE ACTION: REINSTALLED LAYARD ON BOTTOM-SIDE OF DOOR. (7408436)Jul 7, 2025 · N721TW · Boeing 757231 · Emergency EquipmentSDR DALA2025061004438Girt Bar · fodSHIP 6810 RT DOOR WILL NOT ARM. CORRECTIVE ACTION: CLEARED DEBRIS & SECURED LANYARD AS REQUIRED. REF B757 AMM 25-61. (7542294)Jun 9, 2025 · N721TW · Boeing 757231 · Emergency EquipmentSDR DALA2025051203655Placard · out of positionSHIP 6810 ENTRY DOOR ARMING LEVER HARD TO OPERATE / LOCATIONS:601. DISARMED PLACARD DOES NOT DISPLAY PROPERLY. CORRECTIVE ACTION: REAJUSTED PLACARD LOCATION AND READJUSTED ENTRY DOOR ARMING LEVEL @ LOCATION 601. CHK NML. REF B757 AMM 52-10. (0958166)May 10, 2025 · N721TW · Boeing 757231 · Passenger/Crew DoorsSDR DALA2025041402899Switch · brokenSHIP 6810 "UNARMED" KORREY SWITCH BROKEN. CORRECTIVE ACTION: R/R EMERGENCY LIGHTS/PASSENGER OXYGEN CONTROL PANEL PER B757 AMM 33-51. (7034938)Apr 11, 2025 · N721TW · Boeing 757231 · Light System WiringSDR DALA2025041402910Line · out of positionSHIP 6810 1 RIGHT DOOR WILL NOT ARM. CORRECTIVE ACTION: FOUND MOORING LINE OBSTRUCTING GIRT BAR. RESTOWED MOORING LINE. GIRT BAR ENGAGES PROPERLY PER B757 AMM 52-66. (7034930)Apr 10, 2025 · N721TW · Boeing 757231 · Emergency EquipmentSDR DALA2025032002108Charger · inoperativeSHIP 6810 DURING W/C 3351-7001 FOUND BAD BATTERY CHARGER. CORRECTIVE ACTION: R+R BATTERY CHARGER AND BATTERY AT M730 FWD PER B757 AMM 33-51. OPS CHECK GOOD. (6721044)Mar 19, 2025 · N721TW · Boeing 757231 · Emergency LightingSDR DALA2025022001345Trim Panel · looseSHIP 6810 EMERGENCY LIGHT TRIM PANEL LOOSE SEAT ROW 37DEF. CORRECTIVE ACTION: RESCURE EMR LIGHT TRIM PANEL ROW 37 DEF OPS CHECK GOOD. (6347165)Feb 17, 2025 · N721TW · Boeing 757231 · Emergency LightingSDR DALA2025021001005Girt Bar · fodSHIP 6810 1R DOOR WILL NOT ARM. CORRECTIVE ACTION: REMOVED DEBRIS FROM GIRT BAR "ARMED" CATCH HOUSING @ 1R DOOR OPS NML. (6347114)Feb 2, 2025 · N721TW · Boeing 757231 · Emergency EquipmentSDR DALA2024122311951Indicator · malfunctionedSHIP 6810 2R KNUCKLED KNOCKER WILL NOT EXTEND WHEN DOOR IS ARMED. CORRECTIVE ACTION: FOUND KNUCKLE STUCK. GOT KNUCKLE UNSTUCK. ARMED DOOR 2R 4 TIMES IAW B757 AMM 52-11. OPS GOOD. (6643342)Dec 19, 2024 · N721TW · Boeing 757231 · Emergency EquipmentSDR DALA2024121211690Receiver · damagedSHIP 6810 L1 DOOR AFT UPPER LATCH RECIEVER IS DAMAGED. CORRECTIVE ACTION: REMOVED AND INSTALLED NEW L1 DOOR AFT UPPER LATCH RECIEVER IAW B757 AMM 52-11-37 PERFORMED ADJUSTMENT AT L1 DOOR AFT UPPER LATCH RECIEVER IAW B757 AMM 52-11, ADJUSTMENT GOOD. (0705257)Dec 11, 2024 · N721TW · Boeing 757231 · Fuselage Main, StructureSDR DALA2024121211689Receiver · damagedSHIP 6810 L1 DOOR FWD UPPER LATCH RECEIVER IS DAMAGED. CORRECTIVE ACTION: REMOVED AND INSTALLED NEW L1 DOOR FWD UPPER LATCH RECIEVER IAW B757 AMM 52-11-37. PERFORMED ADJUSTMENT AT L1 DOOR FWD UPPER LATCH RECIEVER IAW B757 AMM 52-11, ADJUSTMENT GOOD. (0705251)Dec 11, 2024 · N721TW · Boeing 757231 · Fuselage Main, StructureSDR DALA2024121211688Receiver · damagedSHIP 6810 L1 DOOR AFT UPPER LATCH RECIEVER IS DAMAGED. CORRECTIVE ACTION: REMOVED AND INSTALLED NEW L1 DOOR AFT UPPER LATCH RECIEVER IAW B757 AMM 52-11-37 PERFORMED ADJUSTMENT AT L1 DOOR AFT UPPER LATCH RECIEVER IAW B757 AMM 52-11, ADJUSTMENT GOOD. (0705246)Dec 11, 2024 · N721TW · Boeing 757231 · Fuselage Main, StructureSDR DALA2024120911550Snubber · out of toleranceSHIP 6810 SNUBBER AT L4 DOOR IS UNDER LIMIT. CORRECTIVE ACTION:REMOVED AND REPLACE SNUBBER AT LH DOOR. IAW. B757. AMM. 52-11-01 -004-001 AND IAW. B757. AMM. 52-11. (0696852)Dec 6, 2024 · N721TW · Boeing 757231 · Passenger/Crew DoorsSDR DALA2024120911549Bottle · disconnectedSHIP 6810 R4 DOOR ASSIST BOTTLE WAS FOUND DISCONNECTED. CORRECTIVE ACTION: REMOVED AND INSTALLED NEW EMERGENCY POWER ACTUATOR IAW B757 AMM 52-11. (0696926)Dec 6, 2024 · N721TW · Boeing 757231 · Emergency EquipmentSDR DALA2024111911078Indicator · malfunctionedSHIP 6810 KNUCKLE KNOCKER ON 4L DOOR NOT RETRACTING IN DISARMED POSITION. CORRECTIVE ACTION: CLEANED EDGES AROUND KNUCKLE KNOCKER WHICH CAUSED JAMMING. NOW OPS CK OK REF B 757 AMM 52-02. (6643308)Nov 18, 2024 · N721TW · Boeing 757231 · Emergency EquipmentSDR DALA2024100709753Girt Bar · looseSHIP 6810 DOOR 2L DOOR GIRT BAR LOOSE. CORRECTIVE ACTION: FOUND THE 2L DOOR GIRT BAR LOOSE AND RE-SECURED IAW B757 AMM 25- 66-11. (6360140)Oct 3, 2024 · N721TW · Boeing 757231 · Emergency EquipmentSDR DALA2024081908259Warning Message · false activationSHIP 6810 FALSE EMERGENCY EVAC WARNING ON APPROACH. CORRECTIVE ACTION: FLIGHT CREW VERIFIED CABIN PRESSURE NORMAL. NO EICAS MSG PERTAINING TO EVAC. VERIFIED EO IS ACCOMPLISHED PER B757 WDM 25- 63-11. (5703523)Aug 14, 2024 · N721TW · Boeing 757231 · Central WarningSDR DALA2024081208054Duct · unsecureSHIP 6810 -MISC/DE- DUE TO CABIN FLOOR AT ROW 24 HOT. CORRECTIVE ACTION: SECURED AFT CABIN ZONE TRIM MUFFLER DUCT AT MIX MANIFOLD.Aug 12, 2024 · N721TW · Boeing 757231 · Air Distribution SystemSDR DALA2024050805035Door · fodSHIP 6810 UNABLE TO ARM DOOR 4L. CORRECTIVE ACTION: CLEANED DEBRIS PER B757 AMM 52-11. DOOR OPS OK. ARMING OPS NML. (5616742)May 7, 2024 · N721TW · Boeing 757231 · Passenger/Crew DoorsSDR DALA2024050304915Oxygen Mask · leakingSHIP 6810 -DIV- TO LAS DUE TO CREW O2 PRESSURE DOWN TO 20 PSI INDICATED AT TOP OF CLIMB. CORRECTIVE ACTION: FOUND F/O MASK IN EMERGENCY MODE. C/W OVERWEIGHT LANDING. R/R F/O MASK AND CREW O2 BOTTLE.May 2, 2024 · N721TW · Boeing 757231 · Crew Oxygen SystemSDR DALA2024050304913Indicator · faultedSHIP 6810 R4 DOOR LIGHT IS EXTINGUISHED WHEN DOOR ARMED. CORRECTIVE ACTION: CYCLED ARM LEVER PER B757 AMM 25-66. OPS CHECK GOOD. (5616724)May 1, 2024 · N721TW · Boeing 757231 · Door Warning SystemSDR DALA2024021402201Heat Exchanger · failedSHIP 6810 -DIV/PRES/DE- DUE UNABLE TO MAINTAIN CABIN PRESSURE WITH LEFT PACK ON MEL. CORRECTIVE ACTION: R/R ACM, R/R HEAT EXCHANGERS, R/R PLENUM ASSY, R/R CABIN PRESSURE CONTROLLER, R/R LT PK DUCT, RPLCD 2 BELLY DRAINS. CK AND CLEANED DOOR SEALS OF 1R AND 4R DFeb 13, 2024 · N721TW · Boeing 757231 · Cabin Cooling SystemSDR DALA2023102008661Unknown · unknownSHIP 6810 PASSENGER SEAT 35D AISLE TRIM EMERGENCY ESCAPE PATH LIGHT ATTACHMENT BROKEN. CORRECTIVE ACTION: R/R ENDBAY BUMPER AND HOUSING REF B757 CMM 25-22-58. OPS CHECK GOOD. (0018603)Oct 15, 2023 · N721TW · Boeing 757231 · Emergency LightingSDR DALA2023071905838Unknown · unknownDOOR 4L SLIDE LIGHT INTERMITTENT. CORRECTIVE ACTION: REMOVED AND REPLACED DOOR 4L FWD PROX SENSOR PER B757 AMM 25-66-11. CKS OK.Jul 15, 2023 · N721TW · Boeing 757231 · Door Warning SystemSDR DALA2023071005544Unknown · unknownSHIP 6810 4L DOOR DISARMED BUT SLIDE ARM LIGHT IS STILL ILLUMINATED. CORRECTIVE ACTION: FOUND AND REMOVED DEBRIS FROM GIRTBAR SENSOR. DOOR ARMS AND DISARMS NORMALLY. SLIDE ARNED LIGHT OPS NORMALLY. (4144856)Jul 4, 2023 · N721TW · Boeing 757231 · Door Warning SystemSDR DALA2023070305346Unknown · unknownSHIP 6810 -DIV/DE - TO MSP DUE TO RIGHT BLEED OFF INDICATION. CABIN PRESSURIZATION WARNING APPEARED AT FL360, EMERGENCY DECENT AND OXYGEN MASKS WERE USED. CORRECTIVE ACTION: T/S FOUND HOSE BLOWN OFF BETWEEN ACM AND HEAT EXCHANGER. REPLACED HOSE IN #1 PACK BAY,Jul 1, 2023 · N721TW · Boeing 757231 · Cabin Pressure Control SystemSDR DALA2023062905227Unknown · unknownSHIP 6810 4 LEFT DOOR SLIDE LITE STAYED ILLUMINATED AFTER DOOR DISARMED. CORRECTIVE ACTION: REMOVED DEBRIS. (4144802)Jun 27, 2023 · N721TW · Boeing 757231 · Door Warning SystemSDR DALA2023061304836Unknown · unknownSHIP 6810 KNUCKLE KNOCKER ON 2R EXIT DOOR NOT WORKING PROPERLY. CORRECTIVE ACITON: REMOVED ESCAPE SLIDE COVER PER B757 AMM 52-11-02. REMOVED LOWER DOOR LINING PER B757 AMM 52-11-02. FOUND LINKAGE TO KNUCKLE KNOCKER DISCONNECTED. RECONNECTED ROD END TO LINKAGE.Jun 12, 2023 · N721TW · Boeing 757231 · Passenger/Crew DoorsSDR DALA2023041102841Unknown · unknownSHIP 6810 DURING SVC CHK CABIN WALK THROUGH FOUND 4R DOOR LOWER EMERGENCY EXIT LENS MISSING. CORRECTIVE ACITON: SECURED 4R DOOR LOWER EMERGENCY EXIT LENS COVER AS REQUIRED. (9599182)Apr 7, 2023 · N721TW · Boeing 757231 · Emergency LightingSDR DALA2023013100796None · noneSHIP 6810 2R SLIDE LIGHT STILL ILLUMINATED ON ARRIVAL TO A/C WHILE DOOR IS DISARMED. CORRECTIVE ACTION: PERFORMED INSP OF DOOR 2R GIRT BAR. NO DEFECTS NOTED. OPS CHK OF DOOR SLIDE ARM LIGHT NML. ALL PER B757-200 AMM 25-66. (4093040)Jan 30, 2023 · N721TW · Boeing 757231 · Door Warning SystemSDR DALA2022122108286Stabilizer · noneSHIP 6810 REPAIR TO LH HORIZ STABILIZER, AUX BOX, UPPER SURFACE, STA 70- 135, REQUIRES SUPPLEMENTAL INSPECTIONS PER ERA 603598-14AD. CORRECTIVE ACTION: REF ERA 603598-14AD. (2538596)Dec 14, 2022 · N721TW · Boeing 757231 · Horizontal Stabilizer, Plate/SkinSDR DALA2022121508138Brace · damagedDAMAGE FOUND ON OPEN HOLES AT RH ENG DRAG FTG CLAMP-UP & DIAG BRACE, HOLE NR 2 CORROSION ON SKIN AND FITTING BTW 2 TO 4 CLOCK POS; HOLE NR 4 CORROSION 0N SKIN BTW 7-10 CLOCK POS; HOLE #6 SCRATCHES 0N FITTING BTW 11 TO 1 CLOCK POS; HOLE #8 CORROSION 0N SKIN ANDec 13, 2022 · N721TW · Boeing 757231 · Engine Mount SectionSDR DALA2022121408112Frame · corrodedCORROSION ON COUNTER FRAME OF DOOR OF LAVATORY C. THE COUNTER FRAME ON THE LAVATORY DOOR WAS REPAIRED IAW ERA 604216-14 REV. ORIGINAL SECTION I, REPAIR INSTRUCTIONS, AND PRI 604216-14 REV. 0 AND ERA 604025-14 REV. ORIGINAL SECTION I: REPAIR INSTRUCTIONS AND PRDec 13, 2022 · N721TW · Boeing 757231 · Fixed Inner DoorsSDR DALA2022121308091Floor Support · corrodedSHIP 6810 CORROSION ON FLOOR SUPPORT STRINGER (UPPER AND LWR SIDES) LBL 11.40, STA. 1510 AT BULK CARGO. CORRECTIVE ACTION: SUMMARY OF NRC 00169: FLOOR SUPPORT STRINGER LBL 11.40 WAS REPAIRED B757-200 SRM. (2533213)Dec 10, 2022 · N721TW · Boeing 757231 · Fuselage Miscellaneous StructureSDR DALA2022121308090Floor Support · corrodedSHIP 6810 CORROSION ON FLOOR STRINGERS 2, 7, 10 AND 16 LBL, FROM STA. 1460 TO 1480 AT AFT CARGO COMPARTMENT. CORRECTIVE ACTION: SUMMARY OF NRC 00207: FLOOR SUPPORT STRINGER LBL 2,10,16 WERE REPLACED PER B757-200 SRM AND FLOOR SUPPORT STRINGER LBL 7 WAS REPAIREDec 10, 2022 · N721TW · Boeing 757231 · Fuselage Miscellaneous StructureSDR DALA2022121308089Splice · corrodedSHIP 6810 CORROSION ON SPLICES ( 2 EAS). BELOW RH/LH SIDE PANEL, STA. 1350 AT AFT CARGO COMPARTMENT. CORRECTIVE ACTION: SUMMARY OF NRC 00186: SPLICES ( 2EA S ) RH/LH SIDE PANEL STA. 1350 WERE REPLACED PER B-757-200 SRM. (2531661)Dec 9, 2022 · N721TW · Boeing 757231 · Fuselage Miscellaneous StructureSDR DALA2022121208011Floor Support · corrodedSHIP 6810 CORROSION ALONG FLOOR SUPPORT STRINGER (UPPER AND LWR SIDES) RBL 7.45, BTW 1500 AND 1640 AT BULK CARGO. CORRECTIVE ACTION: SUMMARY OF NRC 00173: STRINGER WAS REPAIRED PER B757-200 SRM. (2531659)Dec 9, 2022 · N721TW · Boeing 757231 · Fuselage Miscellaneous StructureSDR DALA2022121208010Floor Support · corrodedSHIP 6810 CORROSION ON FLOOR SUPPORT STRINGER (UPPER AND LWR SIDES) LBL 2.90, STA S 1530 AND 1565 AT BULK CARGO. CORRECTIVE ACTION: SUMMARY OF NRC 00171, FLOOR SUPPORT STRINGER WAS REPAIRED PER B757-200 SRM. (2530510)Dec 8, 2022 · N721TW · Boeing 757231 · Fuselage Miscellaneous StructureSDR DALA2022121208009Floor Support · corrodedSHIP 6810 CORROSION ON FLOOR SUPPORT STRINGER (UPPER AND LWR SIDES) LBL 7.55 BTW STA. 1500 AND 1510 AND STA. 1635 AT BULK CARGO. CORRECTIVE ACTION: SUMMARY OF NRC 00170, FLOOR SUPPORT STRINGER WAS REPAIRED PER B757-200 SRM. THICKNESS MEASUREMENT INSPECTION WASDec 8, 2022 · N721TW · Boeing 757231 · Fuselage Miscellaneous StructureSDR DALA2022121208007Panel · corrodedSHIP 6810 CORROSION ON RH SIDE PANEL FROM STA. 1350 TO 1380 AT AFT CARGO COMPARTMENT. CORRECTIVE ACTION: REPLACED PER B757-200 SRM. (2529417)Dec 7, 2022 · N721TW · Boeing 757231 · Fuselage Miscellaneous StructureSDR DALA2022121208006Panel · corrodedSHIP 6810 CORROSION ON LH SIDE PANEL (UP/LWR SIDE) FROM STA 1350 TO 1410 AT AFT CARGO COMPARTMENT. CORRECTIVE ACTION: SUMMARY OF NRC 00212, LH SIDE PANEL WAS REPLACED PER B757-200 SRM. (2529399)Dec 7, 2022 · N721TW · Boeing 757231 · Fuselage Miscellaneous StructureSDR DALA2022120807907Panel · corrodedCORROSION ON RH SIDE PANEL (UP/LWR SIDE) FROM BS 1310 - 1350 IN THE AFT CARGO BAY. RT SIDE PANEL WAS REPLACED IAW DWG 146N5391, REV B, AND SRM.Dec 6, 2022 · N721TW · Boeing 757231 · Fuselage Miscellaneous StructureSDR DALA2022120807906Panel · corrodedCORROSION ALONG RH SIDE PANEL FROM STA. 1440 TO 1530 IN THE BULK CARGO COMPARTMENT. RT PANEL WAS REPLACED IAW SRM.Dec 6, 2022 · N721TW · Boeing 757231 · Fuselage Miscellaneous Structure
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