# Service difficulty reports: N454XJ, cancelled Jan 21, 2020

A list on [N454XJ, cancelled Jan 21, 2020](https://openairdocs.org/deregistered/N454XJ-2020-01-21.md).

Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first.

- [SDR MALA110167](https://openairdocs.org/sdr/MALA110167.md): Light · inoperative · Jul 25, 2011 · N454XJ · Saab 340B · Emergency Lighting
  > DURING LC1 NOTED AISLE EMERGENCY LIGHT STRIP NR 10 FROM THE FRONT INOPERATIVE. REPLACED FLOOR PROXIMITY LIGHT ASSY, PN 7433-2 IAW AMM 33-50-20. OPS CHECK GOOD. ASSY NR 10 FROM THE FRONT.
- [SDR MALA110163](https://openairdocs.org/sdr/MALA110163.md): Light · inoperative · Jul 24, 2011 · N454XJ · Saab 340B · Emergency Lighting
  > DURING LC1 NOTED AISLE EMERGENCY LIGHT STRIP NR 10 FROM THE FRONT INOPERATIVE. REPLACED FLOOR PROXIMITY LIGHT ASSY IAW AMM 33-50-20. OPS CHECK GOOD. ASSY NR 10 FROM THE FRONT.
- [SDR MALA100051](https://openairdocs.org/sdr/MALA100051.md): Skin · dented · Mar 20, 2010 · N454XJ · Saab 340B · Passenger/Crew Doors
  > MAIN ENTRANCE DOOR PN 7252110-507, SN 0525 OUTER SKIN WAS FOUND TO HAVE 1 DENT, MEASURING 1.25" X 0.60" X 0.024" DEEP, LOCATED 3.5" FROM FWD EDGE OF DOOR, 32.25" FROM BOTTOM OF DOOR, 0.812" FROM AN ATTACHMENT SCREW AND 1.25" FROM AN EXISTING REPAIR. PERFORMED
- [SDR MALA100021](https://openairdocs.org/sdr/MALA100021.md): Battery Pack · failed · Feb 12, 2010 · N454XJ · Saab 340B · Emergency Lighting
  > EMERG BATTERY PACK 24LN AND 21LN FAILED TEST TC 335003. R & R 24LN SN ON 2219 SN OFF 2216, 21LN SN ON 1427 SN OFF 2225 IAW MM 33-50, ALL CKS GOOD.
- [SDR MALA090107](https://openairdocs.org/sdr/MALA090107.md): Battery Pack · malfunctioned · Aug 6, 2009 · N454XJ · Saab 340B · Emergency Lighting
  > DURING OPS TEST OF EMERGENCY LIGHT SYS FOUND BATTERY 20LN IN NEED OF REPLACEMENT. REPLACED EMERGENCY LIGHT PWR SUPPLY PN 3301-51, SN ON 2223, SN OFF 2002 IAW SF3 AMM 33-50-10. POSITION 20LN.
- [SDR MALA080060](https://openairdocs.org/sdr/MALA080060.md): Frame · corroded · Apr 18, 2008 · N454XJ · Saab 340B · Fuselage Main, Frame
  > AT STA 288 ON RIGHT UPPER FLANGE ON THE BOTTOM FRAME CORROSION WAS FOUND. REPAIRED AREA IAW EOS53108.
- [SDR MALA070117](https://openairdocs.org/sdr/MALA070117.md): Wire · chafed · Sep 15, 2007 · N454XJ · Saab 340B · Landing Gear System Wiring
  > ON APPROACH TO LANDING, THE GEAR UNSAFE LIGHT REMAINED ILLUMINATED. THE CREW FOLLOWED THE QRH, BLEW THE BOLTS TO EXTEND THE LANDING GEAR. CREW DID NOT DECLARE AN EMERGENCY, BUT CFR WAS CALLED FOR ASSISTANCE. THE FLIGHT LANDED WITHOUT FURTHER INCIDENT. PMI:
- [SDR MALA070062](https://openairdocs.org/sdr/MALA070062.md): Heater · melted · May 14, 2007 · N454XJ · Saab 340B · Air Intake Anti/De-Ice System
  > THE RIGHT ENGINE INTAKE HAS MELTED ON THE LOWER PART. THIS IS THE RUBBER PORTION OF THE HEATER MAT. CREW NOTED ON POSTFLIGHT THAT THEY FOUND THE RIGHT INTAKE DUCT BURNED THROUGH. CREW HAD NOTED THEY SMELLED AN ODD BURNING SMELL WHILE ON APPROACH. REMOVED A
- [SDR MALA070014](https://openairdocs.org/sdr/MALA070014.md): Battery Pack · no test · Nov 9, 2006 · N454XJ · Saab 340B · Emergency Lighting
  > FAILED CAP CHECK PER BFGOODRICH AEROSPACED CMMWO 418102. REPLACED BATTERY PACK.
- [SDR MALA11092006](https://openairdocs.org/sdr/MALA11092006.md): Battery Pack · no test · Nov 9, 2006 · N454XJ · Saab 340B · Emergency Lighting
  > FAILED CAP CHECK PER BFGOODRICH AEROSPACED CMMWO 41810. REPLACED BATTERY PACK.
- [SDR MALA060582](https://openairdocs.org/sdr/MALA060582.md): Dpu · failed · Oct 26, 2006 · N454XJ · Saab 340B · Attitude and Direction Data System
  > ON THE T/O ROLL CA EADI & EHSI -FLICKERING- THE RUNWAY WAS BUMPY THE PROBLEM STOPPED JUST AFTER THE WHEELS CAME UP, IT STARTED AFTER 100 KIAS SAME AS WRITE UP NR 2 LIKE SOMETHING WAS LOOSE & THEN THE BUMPS EFFECTED IT. THE PROBLEM REOCURRED ON LND BACK IN DTW
- [SDR MALA060544](https://openairdocs.org/sdr/MALA060544.md): Motor · smoke · Sep 2, 2006 · N454XJ · Saab 340B · Cabin Cooling System
  > DURING LANDING AT BRD, SMOKE STARTED ENTERING THE CABIN. SMOKE STOPPED AFTER SHUTDOWN. ISOLATED THE PROBLEM TO SUPP A/C MOTOR. DEFERRED SUPP A/C PER MEL21-50-2D. MAINTENANCE PROCEDURES C/W. PULLED AND COLLARED CIRCUIT BREAKER, ENTERED INTO DMR.
- [SDR MALA060266](https://openairdocs.org/sdr/MALA060266.md): Battery Pack · no test · Apr 21, 2006 · N454XJ · Saab 340B · Emergency Lighting
  > FAILED CAP CHECK PER DIEHL CMM WO 408128. REPLACED BATTERY PACK P/N 3301-51, S/N 1404.
- [SDR MALA060240](https://openairdocs.org/sdr/MALA060240.md): Skin · delaminated · Apr 6, 2006 · N454XJ · Saab 340B · Ailerons
  > DURING 2 YEAR CHECK IN BNA FOUND LT AILERON P/N 7257610-621, S/N 0260, IS DELAMINATED ON LOWER SURFACE, 38" FROM INBOARD END AND 2.5" FORWARD OF TRIM TAB. THE DAMAGE HAS BEEN REPAIRED IAW MESABA EO#S57115. REF: EAMS WORK ORDER 213710 TASK 5505.
- [SDR MALA050683](https://openairdocs.org/sdr/MALA050683.md): Skin · dented · Aug 29, 2005 · N454XJ · Saab 340B · Fuselage Main, Plate/Skin
  > DURING 4K CHECK IN BNA FOUND DENTS IN LT SIDE ICE QUARD AREA STA 322-361. REMOVED ICE QUARDS. REPAIRED FUSELAGE, OUT OF LIMIT REF: SRM 51-10-10. REF: EO S53005, INSTALLED NEW ICE QUARDS REF: EAMS WO 212753, TASK 2503.
- [SDR MALA050682](https://openairdocs.org/sdr/MALA050682.md): Skin · dented · Aug 29, 2005 · N454XJ · Saab 340B · Fuselage Main, Plate/Skin
  > DURING 4K CHECK IN BNA FOUND DENTS IN RT SIDE ICE QUARD ARE STA 315-379. REMOVED ICE QUARD. REPAIRED FUSELAGE, OUT OF LIMIT REF: SRM 51-10-101 LOCATION REF: EO S53005. NEW ICE QUARDS. REF: EAMS WO 212753 TASK 2502.
- [SDR MALA050681](https://openairdocs.org/sdr/MALA050681.md): Strap · chafed · Aug 26, 2005 · N454XJ · Saab 340B · Nacelle/Pylon Miscellaneous Structure
  > DURING 4K CHECK IN BNA REMOVED AND REPLACED RT NACELLE FIG 8 COWL ATTACH STRAP P/N 7254110-257 CHAFE DAMAGE. REMOVED AND REPLACED REF: EAMS WO 212753 TASK 4501 WORK ORDER SAAB SRM 51-40-22/21/25.
- [SDR MALA050680](https://openairdocs.org/sdr/MALA050680.md): Strap · chafed · Aug 26, 2005 · N454XJ · Saab 340B · Nacelle/Pylon Miscellaneous Structure
  > DURING 4K INSPECTION FOUND LT NACELLE FIG 8 INBOARD ATTACH CAM-LOCK STRAP CHAFED OUT OF LIMIT P/N 7254110-257. REMOVED AND REPLACED REF: EAMS WO 212753 TASK 4505 WORK REF: SAAB SRM 51-40-22/21/25.
- [SDR MALA050679](https://openairdocs.org/sdr/MALA050679.md): Web · corroded · Aug 25, 2005 · N454XJ · Saab 340B · Fuselage Miscellaneous Structure
  > DURING 4K INSPECTION IN BNA FOUND FLOOR WEB AT STA 294.0 RBL 10 IS CORRODED-OUT OF LIMITS. REMOVED AND REPLACED FLOOR WEB. REF:EAMS WO 212752 TASK 1521. WORK REF SAAB SRM 51-40-21.
- [SDR MALA050210](https://openairdocs.org/sdr/MALA050210.md): Sensor · malfunctioned · Jan 22, 2005 · N454XJ · Saab 340B · Cabin Temperature Control System
  > IN FLIGHT RT BLEED FAULT ILLUMINATED WITH RT DUCT OVERTEMP. RAN QRH AND THEY CAME BACK ON. RETURNED TO MEM. REMOVED AND REPLACED RT DUCT TEMP SENSOR PN 754691-1 AND TEMP SWITCH PN M2035-501 IAW AMM CH 21. OPS CHECK GOOD.
- [SDR MALA040930](https://openairdocs.org/sdr/MALA040930.md): Rib · cracked · Nov 2, 2004 · N454XJ · Saab 340B · Wing, Rib/Bulkhead
  > LEFT O/B LEADING EDGE HAS 2 CRACKED RIBS. RIBS WERE REPAIRED IAW MESABA EO S57026.
- [SDR MALA040668](https://openairdocs.org/sdr/MALA040668.md): Seat Track · corroded · Nov 1, 2004 · N454XJ · Saab 340B · Fuselage, Seat/Cargo Attach Fittings
  > DURING 6Y/4Y INSPECTION IN BNA, SEAT TRACK AT LBL 18.3 IS CORRODED BETWEEN FS 294-339. TRACK WAS REPLACED IN THIS AREA IAW MESABA EO S53060. A/C WAS RELEASED 11/07/04.
- [SDR MALA040669](https://openairdocs.org/sdr/MALA040669.md): Seat Track · corroded · Nov 1, 2004 · N454XJ · Saab 340B · Fuselage, Seat/Cargo Attach Fittings
  > DURING 6Y/4Y INSPECTION IN BNA, SEAT TRACK AT BL 0 IS CORRODED BETWEEN FS 294 AND 339. SEAT TRACK WAS REPLACED IN THIS AREA IAW MESABA EO S53060. A/C WAS RELEASED 11/07/04.
- [SDR MALA040670](https://openairdocs.org/sdr/MALA040670.md): Seat Track · corroded · Nov 1, 2004 · N454XJ · Saab 340B · Fuselage, Seat/Cargo Attach Fittings
  > DURING 6Y/4Y INSPECTION IN BNA, I/B SEAT TRACK AT RBL 18.3 BETWEEN FS 236 & 276 IS CORRODED, OUT OF LIMITS. TRACK WAS REPLACED IAW SRM 51-40-21 AND 51-40-27. A/C WAS RELEASED 11/07/04.
- [SDR MALA040667](https://openairdocs.org/sdr/MALA040667.md): Floor Panel · corroded · Nov 1, 2004 · N454XJ · Saab 340B · Fuselage Floor Panel
  > DURING 6Y/4Y INSPECTION IN BNA, O/B FLOOR PANEL SUPPORT IS CORRODED FROM FS 583 TO FS 622 LT SIDE. MAINTENANCE REPAIRED IAW SRM 51-70-20, 51-40-60. A/C WAS RELEASED 11/07/04.
- [SDR MALA040665](https://openairdocs.org/sdr/MALA040665.md): Frame · corroded · Oct 30, 2004 · N454XJ · Saab 340B · Fuselage Main, Frame
  > DURING 6Y/4Y INSPECTION IN BNA, UPPER CAP OF BOTTOM FRAME AT FS 258 IS CORRODED AT FLOOR LEVEL AND WAS REPAIRED IAW MESABA EO S53102. A/C WAS RELEASED 11/07/04.
- [SDR MALA040666](https://openairdocs.org/sdr/MALA040666.md): Floor Support · corroded · Oct 30, 2004 · N454XJ · Saab 340B · Fuselage Miscellaneous Structure
  > DURING 6Y/4Y INSPECTION IN BNA, FLOOR SUPPORT FRAME CORRODED AT FS 231 BL 0. MAINTENANCE REPAIRED IAW MESABA EO S53102. A/C WAS RELEASED 11/07/04.
- [SDR MALA040569](https://openairdocs.org/sdr/MALA040569.md): Battery Pack · inoperative · Sep 9, 2004 · N454XJ · Saab 340B · Emergency Equipment
  > UPON LANDING IN DTW, F/A REPORTS EMERGENCY FLASHLIGHT IS NOT BLINKING. MAINTENANCE INSTALLED SERVICABLE BATTERY PACK, ALL CHECKS GOOD.
- [SDR MALA040534](https://openairdocs.org/sdr/MALA040534.md): Engine · fluctuates · Aug 13, 2004 · N454XJ · Saab 340B · Engine (Turbine/Turboprop)
  > A/C RETURNED AFTER TAKEOFF WITH THE LT ENGINE SHUTDOWN DUE TO PROP RPM FLUCTUATIONS. AIR RETURN TO FSD. MAINTENANCE REPLACED LT ENG ASSY, REF JOB CARD 7100-301 FOR OPS AND LEAK CHECKS AND WORK DETAILS.
- [SDR MALA040499](https://openairdocs.org/sdr/MALA040499.md): Cover · dislodged · Jul 19, 2004 · N454XJ · Saab 340B · Emergency Lighting
  > THE RIGHT EMERGENCY EXIT HANDLE COVER FELL OFF DURING LANDING. MAINTENANCE RESECURED COVER.
- [SDR MALA040196](https://openairdocs.org/sdr/MALA040196.md): Acm · malfunctioned · Feb 13, 2004 · N454XJ · Saab 340B · Cabin Cooling System
  > DURING APPROACH TO AIRPORT CREW COULD SMELL A BURNING ODOR IN FLIGHT DECK AND CABIN. PASSENGERS AND FLIGHT ATTENDANT REPORTED A STRONG VIBRATION AND NOISE COMING FROM THE FLOOR AFT ROW 6. PERFORMED QRH PROCEDURES. MAINTENANCE ISOLATED PROBLEM TO THE RIGHT A
- [SDR MALA030484](https://openairdocs.org/sdr/MALA030484.md): Control Module · malfunctioned · Oct 27, 2003 · N454XJ · Saab 340B · Air Intake Anti/De-Ice System
  > DURING FLIGHT 2776, RT INTAKE LIGHT ILLUMINATED INFLIGHT. RECYCLED PER QRH AND LIGHT CONTINUED TO CYCLE. MAINTENANCE REMOVED AND REPLACED RT INTAKE DEICE CONTROL MODULE IAW ACT MM 30-21-03, OPS CHECK GOOD. P/N 44730-501, S/N OFF A00031, S/N ON A00072.
- [SDR MALA030273](https://openairdocs.org/sdr/MALA030273.md): Oxygen Mask · missing · May 17, 2003 · N454XJ · Saab 340B · Passenger Oxygen System
  > PAX 02 MASK IS MISSING. MAINTENANCE INSTALLED PAX O2 MASK.A/C OK FOR SERV.P/N 801808-02
- [SDR MALA030213](https://openairdocs.org/sdr/MALA030213.md): Control Module · failed · Mar 28, 2003 · N454XJ · Saab 340B · Air Intake Anti/De-Ice System
  > INFLIGHT ON FLIGHT 3192, LT INTAKE HEAT CYCLED ON AND OFF. AIR RETURN TO MEM. MAINTENANCE REMOVED AND REPLACED DE-ICE CONTROL MODULE P/N 44730-501, SN/OFF L238375, SN/ON A00181.
- [SDR MALA030182](https://openairdocs.org/sdr/MALA030182.md): Power Supply · inoperative · Feb 27, 2003 · N454XJ · Saab 340B · Emergency Lighting
  > COVE LIGHT 11LN WOULD NOT COME ON LINE. MAINTENANCE FOUND POWER SUPPLY 20 LN BAD. MAINTENANCE REPLACED EMERGENCY POWER SUPPLY AND OPS CHECKED GOOD.
- [SDR MALA020315](https://openairdocs.org/sdr/MALA020315.md): Compressor · seized · Jun 2, 2002 · N454XJ · Saab 340B · Air Distribution System
  > WHILE SHUTDOWN ON FLIGHT 2949/3059, F/A NOTED SMOKE IN VICINITY OF ROW 3 UPON SHUTDOWN WHILE SUPPLEMENTAL A/C WAS OPERATING. MAINTENANCE TROUBLESHOOTING REVEALED SEIZED SUPPLEMENTAL A/C COMPRESSOR. NO OTHER INFORMATION AVAILABLE AT THIS TIME.
- [SDR MALA030241](https://openairdocs.org/sdr/MALA030241.md): Motor · failed · Apr 18, 2002 · N454XJ · Saab 340B · Cabin Compressor System
  > SMOKE COMING FROM THE AVIONICS BAY ON FLIGHT 3306. MAINTENANCE REPLACED AVIONIC VENT FAN P/N M4401D8A, S/N OFF 598, S/N ON 576 REF: AMM 21-23-10-2. NO FIX. FOUND WHITE SMOKE COMING FROM SUPPLEMENTAL A/C SYSTEM UNDER THE FLOOR AND OUT THE AVIONICS RACK. DEF
- [SDR MALA020223](https://openairdocs.org/sdr/MALA020223.md): Switch · defective · Mar 31, 2002 · N454XJ · Saab 340B · Air Intake Anti/De-Ice System
  > DURING FLIGHT 3177, LT INTAKE HEAT CYCLING. AIR TURNBACK TO DTW. MAINTENANCE FOUND LT SWITCH ON PANEL BAD. REMOVED AND REPLACED LT SWITCH. RAN A/C, OPS CHECK GOOD. ALL DONE IAW AMM 20-30.
- [SDR MALA010515](https://openairdocs.org/sdr/MALA010515.md): Windshield · cracked · Jun 10, 2001 · N454XJ · Saab 340B · Flight Compartment Windows
  > ON DEPARTURE LT FRONT WINDSHIELD LIGHT ILLUMINATED AND TWO MINUTES LATER THE WINDSHIELD CRACKED. AIR TURNBACK TO BGM. MAINTENANCE REPLACED LT FRONT WINDSHIELD IAW SF-340, AMM CHAPTER 56-10-05-4.
- [SDR MALA010513](https://openairdocs.org/sdr/MALA010513.md): Computer · faulty · Jun 8, 2001 · N454XJ · Saab 340B · Integrated Flight System
  > DURING FLIGHT 3266 OUT OF DTW, NR 2 AHRS INTERMITTENT IN FLIGHT. FLICKERS AND GIVES ATT AND HEADING COMPARATORS. MAINTENANCE REPLACED NR 2 AHRS COMPUTER. ALL CHECKS GOOD.
- [SDR MALA010292](https://openairdocs.org/sdr/MALA010292.md): Computer · defective · Mar 26, 2001 · N454XJ · Saab 340B · Stall Warning System
  > DURING TO FROM DTW ON FLIGHT 2906, LT STALL FAIL LIGHT ON TAKEOFF, PULLED E-7 C/B ORH COMPLETE. AIR RETURN TO DTW, MAINTENANCE REPLACED STALL WARNING. COMP. PN 0020AKY SN/OFF 01114, SN/ON 01001. ALL CHECKS GOOD. MAINTENANCE REQUESTS TEST FLIGHT SEE LOG PAGE 9
- [SDR MALA010205](https://openairdocs.org/sdr/MALA010205.md): Connector · contaminated · Feb 17, 2001 · N454XJ · Saab 340B · Landing Gear Retraction/Extension System
  > AIR RETURN TO MSP. CREW REPORTED THE GEAR INTRANSIT LIGHT STAYED ON AND PUMP CONTINUED TO RUN WHEN GEAR WAS SELECTED UP. MAINTENANCE DUPLICATED FAULT, FOUND CONTAMINATION IN LT UPLOCK SWITCH CANNON PLUG. CLEANED PLUG AND FAULT IS GONE. SWUNG GEAR 10 TIMES,
- [SDR MALA010135](https://openairdocs.org/sdr/MALA010135.md): Seat Track · corroded · Jan 16, 2001 · N454XJ · Saab 340B · Fuselage, Seat/Cargo Attach Fittings
  > FOUND DURING C-CHECK, CORROSION ON LBL18.3 SEAT TRACK AND WEB FROM STA 294 - STA 363. REFER TO CELSIUS W/O 19238, TASK 1526, AND SAAB STATEMENT 340 SDS000801. MAINTENANCE REMOVED CORROSION BETWEEEN STA 294 - 363 IAW SRM 51-70-40. ALODINED, PRIMED IAW SRM 51
- [SDR MALA010133](https://openairdocs.org/sdr/MALA010133.md): Seat Track · corroded · Jan 15, 2001 · N454XJ · Saab 340B · Fuselage, Seat/Cargo Attach Fittings
  > FOUND DURING C-CHECK, CORROSION ON BL 0 SEAT TRACK LT FLOOR FLANGE AND WEB STA 294 - STA 363. REFER TO CELSIUS W/O 19238, TASK 1525. MAINTENANCE REMOVED CORROSION BETWEEN STA 294 - 363 IAW SRM 51-70-40, MATERIAL REMAINING WITHIN LIMITS, REF SRM 51-10-10. AL
- [SDR MALA000382](https://openairdocs.org/sdr/MALA000382.md): Engine · failed · Jul 6, 2000 · N454XJ · Saab 340B · Engine Temperature Indicating System
  > DURING CRUISE AT 17,000 FT RT ENGINE BEGAN TO SHOW FAILURE.AC YAWED RIGHT AND RIGHT IGNITION LIGHT ILLUMINATED. A POP OR CLUNK WAS HEAR SIMULTANEOUSLY. WHILE SCANNING RT ENGINE AND PROP INSTURMENTS, THE FOLLOWING WER E NOTED: TORQUE DROPPED TO ZERO AND REMAIN
- [SDR MALA976599](https://openairdocs.org/sdr/MALA976599.md): Tire · failed · Oct 5, 1999 · N454XJ · Saab 340B · Tire
  > ON TAXI OUT, THE HYDRAULIC QUANTITY WENT TO ZERO. RETURNED TO GATE. MAINTENANCE FOUND LT O/B TIRE BLOWN AND BRAKE LINE SHEARED. REPLACED TIRE AND BRAKE LINE, ALL CHECKS GOOD.
- [SDR MALA976508](https://openairdocs.org/sdr/MALA976508.md): Generator · failed · Jun 24, 1999 · N454XJ · Saab 340B · AC Generator-Alternator
  > ON CLIMB OUT LT AC GEN LIGHT ILLUMINATED, PERFORMED QRH, SAME RESULTS. UPON RETURN TO MSP NOTICED ENGINE SURGES UNABLE TO GIVE PARAMETERS. F/A NOTICED SMOKE FROM THE EXHAUST, NOTIFIED CREW AND THE ENGINE WAS SHUT DOWN. MAINTENANCE REPLACED AC GEN AND V-BAND

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
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 = 'N454XJ' AND deregistration_id = 'N454XJ-2020-01-21'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/deregistered/N454XJ-2020-01-21/reports

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