# Service difficulty reports: Dassault FALCON 20-F5

A list on [Dassault FALCON 20-F5](https://openairdocs.org/model/dassault-falcon-20-f5.md).

Newest first. General aviation reporting is voluntary.

- [SDR KC8A202607240004](https://openairdocs.org/sdr/KC8A202607240004.md): Fire Warning · false activation · Jul 24, 2026 · N47LP · Amd FALCON20F5 · Fire Detection
  > APU FIRE WARNING BEFORE TAKEOFF. VISUALLY CHECKED APU AND AFT COMPARTMENT, NO EVIDENCE OF SMOKE OR FIRE NOTED. FIRE DETECTION SYSTEM CHECKS GOOD PER THE FALCON 20-F5 MM 26-10-00. SUSPECT APU WAS RUNNING DURING TAKEOFF.
- [SDR KC8A20260410003](https://openairdocs.org/sdr/KC8A20260410003.md): Elec Connector · shorted · Apr 10, 2026 · N47LP · Amd FALCON20F5 · Air Conditioning System Wiring
  > LOSS OF PRESSURIZATION DURING CLIMB OUT OF KBHM, CABIN WARNING LIGHT ILLUMINATED ACCOMPANIED BY THE AURAL WARNING, NO RESPONSE SELECTING MANUAL CONTROL. CREW DECLARED AN EMERGENCY AND DIVERTED TO KHSV. MAINTENANCE FOUND CONDITION VALVE CIRCUIT BREAKER POPPED.
- [SDR KC8A20250623002](https://openairdocs.org/sdr/KC8A20250623002.md): Fire Warning · false activation · Jun 23, 2025 · N47LP · Amd FALCON20F5 · Fire Detection
  > INTERMITTENT APU FIRE WARNING AFTER TAKE-OFF FROM KSUS. CREW SHUT DOWN APU AND ACTIVATED APU COMPARTMENT FIRE EXTINGUISHER. RETURNED TO KSUS. MAINTENANCE AT KSUS INSPECTED APU AND COMPARTMENT FOR HEAT OR FIRE DAMAGE, NO DEFECTS NOTED. DEFERRED APU SYSTEM IN AC
- [SDR KC8A2024072678](https://openairdocs.org/sdr/KC8A2024072678.md): Fire Warning · false activation · Jun 29, 2024 · N47LP · Amd FALCON20F5 · Fire Detection
  > CREW NOTICED APU FIRE WARNING LIGHT ILLUMINATED, NO SECONDARY INDICATIONS OF APU OPERATION. FIRE BOTTLE DISCHARGED AS PRECAUTION. AIRCRAFT, APU, AND COMPARTMENT INSPECTED FOR FIRE DAMAGE. NO DAMAGE OR DEFECTS NOTED. APU AND FIRE EXTINGUISHING FOR APU DEFERRED
- [SDR 2CJA2021103000005](https://openairdocs.org/sdr/2CJA2021103000005.md): Clamp · broken · Oct 30, 2021 · N378D · Amd FALCON20F5 · Engine Bleed Air System
  > AFTER LOADING OUR PASSENGERS AND TAXIING OUT TO RUNWAY 27R WE LIFTED OFF AT 21:29Z. APPROXIMATELY 2 MINUTES AFTER TAKEOFF WHILE WE WERE CLIMBING AT ABOUT 3900 FEET THE #2 ENGINE CHECKLIST AND UPON PULLING THE #2 FUEL SHUTOFF HANDLE THE FIRE ZONE 1R LIGHT WENT
- [SDR DJSR201910243001](https://openairdocs.org/sdr/DJSR201910243001.md): Trim System · out of limits · Oct 23, 2019 · N581FL · Amd FALCON20F5 · Elevator Control System
  > DURING TAKEOFF PHASE, YOKE HIT MECHANICAL STOP BEFORE AIRPLANE PITCH DOWN OCCURRED. CREW TRIMMED TAIL PLANE ACTUATOR NOSE DOWN, WHICH CORRECTED THE PROBLEM. CREW RETURNED TO DEPARTURE AIRPORT.
- [SDR DJSR201910248001](https://openairdocs.org/sdr/DJSR201910248001.md): Feel Unit · erratic · Oct 18, 2019 · N581FL · Amd FALCON20F5 · Elevator Control System
  > AFTER TAKEOFF PITCH CONTROL ARTIFICIAL FEEL BECAME ERRATIC/SLUGGISH. ABORTED FLIGHT AND RETURNED TO DEPARTURE AIRPORT.
- [SDR BQVD201411030001](https://openairdocs.org/sdr/BQVD201411030001.md): Servo Valve · bypassing · Oct 29, 2014 · N184WW · Amd FALCON20F5 · Brake Anti-Skid Section
  > RIGHT BRAKE ANTISKID DID NOT TEST PRIOR TO LANDING. REDUCED BRAKING ON RIGHT BRAKE IN SYSTEM "A". BRAKING NORMAL ON SYSTEM "B". FOUND RIGHT MAIN LANDING GEAR ANTI-SKID SERVO VALVE BYPASSING BRAKE FLUID PRESSURE WITH ANTI-SKID SYSTEM ON OR OFF.
- [SDR BJYA20090507001](https://openairdocs.org/sdr/BJYA20090507001.md): Fire Warning · false activation · May 7, 2009 · N1881Q · Amd FALCON20F5 · Fire Detection
  > AFTER TAKEOFF, AT ABOUT 7000 MSL THE ACFT EXPERIENCED AN "APU FIRE INDICATION". CREW FOLLOWED THEIR EMERGENCY PROCEDURES CHECK LIST AND DISCHARGED THE APU FIRE BOTTLE. THE SOLE INDICATION WAS THE LIGHT. THE CREW HAD NO ASSOCIATED SCENTS OR FUME AND NO OTHER
- [SDR 4006](https://openairdocs.org/sdr/4006.md): Outflow Valve · failed · Nov 20, 2007 · N15SL · Amd FALCON20F5 · Pressure Regulator/Outflow Valve
  > AIR CONDITIONING VALVE CIRCUIT BREAKER POPPED AFTER TAKEOFF AND WOULD NOT RESET WHICH PREVENTED THE AIRCRAFT FROM PRESSURIZING. THE PILOTS REMAINED AT LOWER ALTITUDE WHILE FOLLOWING PROPER PROCEDURES AND LANDED AT THE NEXT AIRPORT. THE PART WAS REPLACED AND TH
- [SDR 2007FA0000049](https://openairdocs.org/sdr/2007FA0000049.md): Seal · deteriorated · Jan 4, 2007 · N189RB · Amd FALCON20F5 · APU Exhaust System
  > DETERIORATED APU EXHAUST DUCT SEAL BETWEEN THE DUCT FLANGE AND AIRCRAFT SKIN ALLOWED HOT EXHAUST GASSES TO ENTER THE TAILCONE AREA RESULTING IN HEAVY SOOT BUILDUP AND HEAT DAMAGE TO WIRE BUNDLES AND ELECTRICAL CONNECTORS AND STRUCTURAL COMPONENTS ADJACENT TO T
- [SDR PAZR200620412](https://openairdocs.org/sdr/PAZR200620412.md): Plug · corroded · Apr 28, 2006 · N620A · Amd FALCON20F5 · Main Landing Gear Attach Section
  > DURING THE COURSE OF REPLACING THE LT MLG ASSEMBLY, THE TECHNICIAN, UPON VISUAL INSPECTION AFTER REMOVAL OF MLG ASSY, FOUND SIGNS OF CORROSION ON THE PLUG, P/N MY20112-1605. UPON FURTHER DISASSEMBLY, IT WAS NOTED THAT THE CORROSION HAD GONE THROUGH THE PLUG.
- [SDR 379002](https://openairdocs.org/sdr/379002.md): Control Switch · burned · Jul 7, 2004 · N892SB · Amd FALCON20F5 · Flight Compartment Lighting
  > ON PREFLIGHT CHECK, MECHANIC IN THE COCKPIT OBSERVED SMOKE COMING FROM THE OVERHEAD PANEL. UPON FURTHER INSPECTION, MAINTENANCE PERSONNEL FOUND DAMAGED "NO SMOKING" AND "SEAT BELT" SWITCHES. THESE SWITCHES HAD BEEN PREVIOUSLY REPLACED AS A RESULT OF A NOISE
- [SDR CA040105008](https://openairdocs.org/sdr/CA040105008.md): Squat Switch · frozen · Jan 3, 2004 · Amd FALCON20F5 · Landing Gear Position and Warning
  > (CAN) ON LANDING THE PIC COULD NOT ACTIVATE THE NORMAL BRAKES AND THE NOSE WHEEL STEERING. PIC USED NR 2 BRAKE SYSTEM AND DIFFERENTIAL POWER TO CONTROL THE AC. SQUAT SWITCH WAS REMOVED, CLEANED AND RE-INSTALLED. NORMAL BRAKES AND NOSE WHEEL STEERING FUNCTION
- [SDR UO22003F00013](https://openairdocs.org/sdr/UO22003F00013.md): Relief Valve · leaking · Dec 1, 2003 · N600CD · Amd FALCON20F5 · Hydraulic Pressure Relief Valve, Main
  > THE AIRCRAFT WAS CLIMBING TO 37,000 FT WHEN THE LOW HYDRAULIC RESERVOIR HEAD PRESSURE LIGHT COME ON. THE PILOT DESCENDED TO 20,000 FT IAW THE FLIGHT MANUAL. WE FOUND THAT THE NR 2 HYDRAULIC RESERVOIR OVER PRESSURE RELIEF VALVE WAS LEAKING. THE VALVE WAS PUR
- [SDR 20000427SH021](https://openairdocs.org/sdr/20000427SH021.md): Seat · broken · Feb 15, 2000 · N242CT · Amd FALCON20F5 · Flight Compartment Equipment
  > CO-PILOT SEAT: LARGE CRACK IN OUTBOARD VERTICAL TUBE OF BACKREST FRAME. ALSO, MULTIPLE CRACKS IN SEAT PAN. PILOT SEAT: MULTIPLE CRACKS IN SEAT PAN. (X)
- [SDR 20000427SH013](https://openairdocs.org/sdr/20000427SH013.md): Seat · cracked · Feb 15, 2000 · N242CT · Amd FALCON20F5 · Flight Compartment Equipment
  > CO-PILOT SEAT: LARGE CRACK IN OUTBOARD VERTICAL TUBE OF BACKREST FRAME. ALSO, MULTIPLE CRACKS IN SEAT PAN. PILOT SEAT: MULTIPLE CRACKS IN SEAT PAN. (X)
- [SDR 2000ZZZX581](https://openairdocs.org/sdr/2000ZZZX581.md): Valve · malfunctioned · Feb 11, 2000 · Amd FALCON20F5 · Aircraft Fuel System
  > RIGHT WING REFUEL VENT VALVE OPERATES INCORRECTLY AFTER OVERHAUL. WHEN POWER IS APPLIED TO THE 'OPEN' CIRCUIT, VALVE RUNS TO THE CLOSED POSITION AND THE VALVE POSITION INDICATOR (MECHANICAL INDICATES CLOSED. ELECTRICALLY, THE VALVE INDICATES OPEN.
- [SDR 99ZZZX3647](https://openairdocs.org/sdr/99ZZZX3647.md): Indicator · reads low · Aug 1, 1999 · N1881Q · Amd FALCON20F5 · Engine Oil Temperature
  > GAUGE INSTALLED. ENGINE GROUND RUN AND FUNCTIONED NORMALLY. ON NEXT FLIGHT, CREW NOTICED TEMPERATURE WAS READING LOW. REPLACED GAUGE.
- [SDR 99ZZZX265](https://openairdocs.org/sdr/99ZZZX265.md): Control Cable · damaged · Aug 7, 1998 · N892SB · Amd FALCON20F5 · Control Column Section
  > WHILE PERFORMING RECENT REQUIREMENT OF 1,500 HOUR LUBE ON CONTROL COLUMNS, FOUND 3 OUT OF 4 UPPER CABLES, AND 1 OUT OF 2 LOWER CABLES, WITH BROKEN STRANDS WHERE THEY RUN OVER PULLEYS. P/N'S: MY2021520810-1, 1 EACH. MY20215-20820-1, 2 EACH. MY20215-20830, 1
- [SDR 99ZZZX264](https://openairdocs.org/sdr/99ZZZX264.md): Control Cable · damaged · Aug 7, 1998 · N892SB · Amd FALCON20F5 · Control Column Section
  > WHILE PERFORMING RECENT REQUIREMENT OF 1,500 HOUR LUBE ON CONTROL COLUMNS, FOUND 3 OUT OF 4 UPPER CABLES, AND 1 OUT OF 2 LOWER CABLES, WITH BROKEN STRANDS WHERE THEY RUN OVER PULLEYS. P/N'S: MY2021520810-1, 1 EACH. MY20215-20820-1, 2 EACH. MY20215-20830, 1
- [SDR 98ZZZX4184](https://openairdocs.org/sdr/98ZZZX4184.md): Line · cracked · Aug 7, 1998 · N8926B · Amd FALCON20F5 · Hydraulic System, Main
  > DURING MAINTENANCE, FOUND DRIP OF HYDRAULIC FLUID ON BEND IN LINE, WHICH WOULD REFORM WHEN WIPED AWAY. CRACK WAS NOT READILY VISIBLE UNTIL LINE WAS DISCONNECTED AT AFT END IN ORDER TO SPREAD THE LINE A BIT AT THE BEND RADIUS. SUBMITTER STATED REPLACED THIS S
- [SDR 97ZZZX2868](https://openairdocs.org/sdr/97ZZZX2868.md): Servo · leaks · Jun 9, 1997 · N347HS · Amd FALCON20F5 · Aileron Control System
  > LEFT AILERON SERVO LEAKED EXCESSIVELY IN-FLIGHT, CAUSED LOSS OF NR 1 HYDRAULIC SYSTEM. SUBMITTER BELIEVES PISTON O-RING SEALS RUPTURED OR ROLLED. NOT SURE UNTIL INVESTIGATED.
- [SDR 97ZZZX2867](https://openairdocs.org/sdr/97ZZZX2867.md): Servo · leaks · May 2, 1997 · N347HS · Amd FALCON20F5 · Aileron Control System
  > LEFT AILERON SERVO LEAKING EXCESSIVELY WITH NO SYSTEM PRESSURE APPLIED OTHER THAN 21 PSI ON HYDRAULIC TANK (HEAD PRESSURE). BELIEVE PISTON O-RING SEALS SPLIT OR ROLLED. NOT SURE UNTIL AERO PRECISION REPAIR AND OVERHAUL, INC., FL, HAS HAD AN OPPORTUNITY TO IN
- [SDR 97ZZZX1015](https://openairdocs.org/sdr/97ZZZX1015.md): Engine · power loss · Feb 7, 1997 · N108BG · Amd FALCON20F5 · Engine (Turbine/Turboprop)
  > PILOT NOTES: AFTER RE-FUEL, THE ACFT LOST PWR ON T/O APPROX 200 FEET AGL. NR 2 ENG EGT WENT RED LINE APPROX 780 DEGREES FAHRENHEIT AND RPM HAD ROLL BACK. A POP WAS HEARD IN THE CABIN BY PASSENGERS. (POSSIBLE COMPRESSOR STALL). PILOT WENT TO FLT IDLE WITH
- [SDR 97ZZZX1249](https://openairdocs.org/sdr/97ZZZX1249.md): Actuator · leaking · Sep 15, 1996 · N305AR · Amd FALCON20F5 · Engine Thrust Reverser
  > 9-15-96 FOUND FAN FLAP ACTUATOR LEAKING BADLY ON T/R DEPLOY. ACTUATOR WAS REPAIRED 6-21-96. P/N AND S/N LISTED. 6-29-96. APPROX 66 HOURS AND 74 CYLCES PRIOR TO CURRENT TIME, FOUND SAME P/N AND POSITION, ACTUATOR LEAKING. THIS ACTUATOR S/N 735 HAD APPROX 1

## 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 aircraft_model_key = 'FALCON20F5'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/model/dassault-falcon-20-f5/reports

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