# Service difficulty reports: Cessna 501

A list on [Cessna 501](https://openairdocs.org/model/cessna-501.md).

Newest first. General aviation reporting is voluntary.

Page 1 of 2 · 68 reports

- [SDR 5JHA20250930231](https://openairdocs.org/sdr/5JHA20250930231.md): Compressor · stalled · Sep 30, 2025 · N16NL · Cessna 501 · Turbine Engine Compressor Section
  > WHILE IN CRUISE FLIGHT AT FL370 (37,000 FT) THE LEFT ENGINE SUFFERED A SUSPECTED COMPRESSOR STALL WHICH SUBSEQUENTLY LEAD TO THE COMPLETE FAILURE/FLAMEOUT OF THE LEFT ENGINE. ALL REQUIRED QRH PROCEDURES WERE ACCOMPLISH ALONG WITH AN ATTEMPTED RELIGHT/RESTART
- [SDR 2025FA0000544](https://openairdocs.org/sdr/2025FA0000544.md): Skin · cracked · Aug 14, 2025 · N909P · Cessna 501 · Rudder, Plate/Skin
  > CRACK IN THE SKIN ON LEFT SIDE OF RUDDER EXTENDING APPROXIMATELY 2.5" FROM THE RIVET LINE JUST BELOW THE TRIM TAB. CRACK EXTENDS DOWNWARD AND AFT.
- [SDR 2023FA0000026](https://openairdocs.org/sdr/2023FA0000026.md): Gyro · erratic · Jan 10, 2023 · N393PJ · Cessna 501 · Directional Gyro and Indicating System
  > SHORTLY AFTER TAKE OFF FROM PWA.DURING CLIMB OUT THE CREW NOTICED THAT THE PILOTS HSI WOULD NOT ERECT AND DEICIDED TO TO RETURN TO PWA TO HAVE MAINTENANCE. AFTER MAINTENANCE ARRIVED IT WAS DETERMINED THAT THE HSI HAD FAUILED
- [SDR SI6R20160705002](https://openairdocs.org/sdr/SI6R20160705002.md): Door · failed · May 31, 2016 · N347MH · Cessna 501 · Fuselage Main, Bulkhead
  > REMOVED CONDITIONED AIR DUCT FROM AFT PRESSURE BULKHEAD TO EXPOSE PLASTIC DOORS THAT ARE HINGED TO CHECK VALVE. PRESSURIZED AIRCRAFT IN HANGAR IN ACCORDANCE WITH MAINTENANCE MANUAL TO 8.0 PSI. PUSHED ON CHECK VALVE HINGED DOORS WITH HANDLE OF PLIERS, WHEN RE
- [SDR SI6R20160705001](https://openairdocs.org/sdr/SI6R20160705001.md): Check Valve · failed · May 23, 2016 · N804ST · Cessna 501 · Cabin Pressure Control System
  > AIRCRAFT AT CRUISE AT 43,000'. CONDITIONED AIR DUCT CAME LOOSE FROM WATER SEPARATOR, CABIN BEGAN DEPRESSURIZING. CHECK VALVE LOCATED ON AFT PRESSURE BULKHEAD FAILED WHEN IT CLOSED BREAKING APART INTO CONDITIONED AIR DUCT LINE. AIRCRAFT BUILT IN 1980. HINGE
- [SDR 2014FA0000112](https://openairdocs.org/sdr/2014FA0000112.md): Seat Frame · broken · Feb 12, 2014 · N501AF · Cessna 501 · Flight Compartment Equipment
  > STRESS ON CHAIR BACK AND METAL FATIGUE PROBABLE CAUSE. CHAIR WAS REPAIRED IAW PROCEDURE STC STO1043WI AND DWG D-10392.
- [SDR VIBR20131202006](https://openairdocs.org/sdr/VIBR20131202006.md): Acm · inoperative · Jun 21, 2013 · N98AV · Cessna 501 · Cabin Cooling System
  > AIR CYCLE MACHINE INOPERATIVE. REPLACED AIR CYCLE MACHINE.
- [SDR CA130212006](https://openairdocs.org/sdr/CA130212006.md): Pump · leaking · Jan 28, 2013 · Cessna 501 · Engine Fuel Pump
  > (CAN) A FUEL LEAK AT THE ECOLOGY TANK WAS NOTICED. A LEAK WAS ALSO OBSERVED COMING FROM THE INTERFACE BETWEEN THE FUEL PUMP AND FUEL CONTROL UNIT. THE LEAK RATE WAS INCREASED BY INCREASING THE POWER DURING GROUND RUN TESTS. THE CUSTOMER WILL REPLACE THE FUE
- [SDR VIBR20130528003](https://openairdocs.org/sdr/VIBR20130528003.md): Rib · cracked · Dec 27, 2012 · N449DT · Cessna 501 · Horizontal Stabilizer, Spar/Rib
  > CRACKED RIBS ON LT HORIZONTAL STABILIZER L/E.
- [SDR 2012FA0000819](https://openairdocs.org/sdr/2012FA0000819.md): Display · failed · Dec 4, 2012 · N999WS · Cessna 501 · Central Display
  > PILOT REPORTED, DURING FLIGHT, THE MULTIFUNCTION DISPLAY FAILED CAUSING SMOKE IN CABIN. ACFT LANDED, MULTIFUNCTION DISPLAY UNIT WAS REMOVED, WIRES SECURED AND ACFT RESUMED FLIGHT.
- [SDR COZR20121130002](https://openairdocs.org/sdr/COZR20121130002.md): Guard · out of position · Nov 29, 2012 · N118K · Cessna 501 · Elevator Control System
  > DURING AN UNDERFLOOR INSPECTION, FOUND THE CABLES FOR THE AILERON AUTOPILOT SERVO RUBBING ON THE CABLE DRUM GUARDS. FURTHER INVESTIGATION FOUND THE CABLE GUARDS CAN BE LOCATED IN DIFFERENT POSITIONS ON THE SERVO. THIS IS TO ALLOW FOR DIFFERENT CABLE ANGLES D
- [SDR 2012FA0000626](https://openairdocs.org/sdr/2012FA0000626.md): Frame · broken · Aug 27, 2012 · N41GT · Cessna 501 · Flight Compartment Equipment
  > FOUND SEAT BASE BROKEN.
- [SDR L7OA2012F00165](https://openairdocs.org/sdr/L7OA2012F00165.md): Indicator · inoperative · Aug 14, 2012 · N347MH · Cessna 501 · Engine Indicating System
  > LEFT ENGINE INSTRUMENT DISPLAY INOPERATIVE.
- [SDR CA120320005](https://openairdocs.org/sdr/CA120320005.md): Duct · ruptured · Mar 20, 2012 · Cessna 501 · Engine Air Intake System
  > (CAN) DURING PHASE 4 INSPECTION, LT ENGINE COWL ANTI-ICING DUCTING WAS FOUND TO BE RUPTURED IN INTAKE COWL. PILOTS DID NOT REPORT ANY ABNORMAL OCCURANCES.
- [SDR CA120109001](https://openairdocs.org/sdr/CA120109001.md): Fuel Filter · contaminated · Jan 6, 2012 · Cessna 501 · Engine Fuel Distribution
  > (CAN) AN INTERMITTENT FUEL BYPASS INDICATION IN CRUISE ON THE ENGINE. UPON REFERENCING THE FLIGHT MANUAL, IT STATED TO EXPECT PARTIAL OR FULL POWER LOSS SO PRECAUTIONARY MEASURES WERE TAKEN. THE ENGINE SHOWED NO SIGNS OF PARAMETER SHIFTING AND ALL TEMPERATURES
- [SDR E81RJT2307930](https://openairdocs.org/sdr/E81RJT2307930.md): Skin · damaged · Jul 21, 2011 · N501NY · Cessna 501 · Engine Air Intake System
  > DURING SCHEDULED PHASE INSP OF ACFT PREVIOUSLY MODIFIED, STC ST09559AC, ENGINE INSTALLATION NOTED (2) MISSING RIVET HEADS IN LT ENGINE INLET DUCT SKIN. SUBSEQUENT INVESTIGATION REVEALED MINOR CRACK FROM RIVET HOLE. NO FOD DAMAGE NOTED TO ENGINE. INLET DUCT SK
- [SDR K452011F00001](https://openairdocs.org/sdr/K452011F00001.md): Angle · cracked · Mar 2, 2011 · N82DT · Cessna 501 · Spoilers
  > DURING ROUTINE MX, THE LT LOWER SPEED BRAKE LOWER STIFFENER WAS FOUND CRACKED AT MID SPAN. THE COMPONENT WAS REPLACED IAW THE SRM. CAUSE UNKNOWN.
- [SDR K452011F00000](https://openairdocs.org/sdr/K452011F00000.md): Angle · cracked · Mar 2, 2011 · N82DT · Cessna 501 · Spoilers
  > DURING ROUTINE MX, THE RT LOWER SPEED BRAKE LOWER STIFFENER WAS FOUND CRACKED AT MID SPAN. THE COMPONENT WAS REPLACED IAW THE SRM. CAUSE UNKNOWN.
- [SDR 2010FA0001175](https://openairdocs.org/sdr/2010FA0001175.md): Blower Motor · burned out · Nov 7, 2010 · N98AV · Cessna 501 · Air Distribution Fan
  > UPON TURNING THE COCKPIT DEFOG FAN TO LOW, SMOKE WAS OBSERVED COMING FROM THE DEFOG VENTS. SWITCH WAS RETURNED TO THE OFF POSITION AND THE CIRCUIT BREAKER FOR THE CABIN AIR SYS WAS PULLED. AN UNEVENTFUL LANDING WAS MADE. DURING REPAIR IT WAS NOTED THAT THE F
- [SDR 2010FA0000734](https://openairdocs.org/sdr/2010FA0000734.md): Line · leaking · Jul 12, 2010 · N17HA · Cessna 501 · Aircraft Fuel Distribution System
  > (EBVR) TROUBLESHOOT AND REPAIR FUEL LEAKING FROM BOTTOM OF NR 1 ENGINE BY THE FUEL CONTROL UNIT/ FUEL PUMP. TROUBLESHOT FUEL LEAK TO A CRACKED FUEL LINE. REMOVED EXISTING LINE AND INSTALLED O/H LINE. TORQUED AND SAFETIED.
- [SDR 2009F00053](https://openairdocs.org/sdr/2009F00053.md): Brake Assy · destroyed · Jul 12, 2009 · N92BE · Cessna 501 · Landing Gear Brake System
  > NORMAL BRAKE PRESSURE APPLIED TO BRAKE AFTER LANDING, ACFT VEERED TO THE RT DUE TO RT BRAKE LOCKING UP. ACFT WOULD NOT MOVE/TAXI UNDER ITS OWN POWER, TUG REQUIRED. ACFT LANDING WEIGHT WAS APPROX 9600 LBS. ACFT WAS AT SLOW TAXI SPEED 3-5 MPH WHEN EVENT OCCUR
- [SDR 2009FA0000501](https://openairdocs.org/sdr/2009FA0000501.md): Adc · failed · May 14, 2009 · N2648X · Cessna 501 · Air Data Computer
  > AT APPROX 7:30 PM WE BEGAN A DESCENT OUT OF FL420 FOR OUR ARRIVAL. OUTSIDE AIR TEMP WAS AS LOW AS -46 C AT ALTITUDE FOR 2 HOURS. AT FL340 WE GOT THE YELOW AMBER ENUCIATOR LIGHT JUST ABOVE THE PFD ILLUMINATING "AIU FAIL". OUTSIDE AIR TEMP WAS -31 C. IMMEDIA
- [SDR 2009FA0000338](https://openairdocs.org/sdr/2009FA0000338.md): Seat Back · broken · Apr 9, 2009 · N505JH · Cessna 501 · Cabin Equipment/Furnishings
  > UPPER SEAT BASE ASSY CRACKED AT CHAIR BACK ATTACH POINTS. STRESS ON CHAIR BACK AND METAL FATIGUE PROBABLE CAUSE. CHAIR WAS REPAIRED IAW PROCEDURE STC ST01043WI. (K)
- [SDR 2008FA0000180](https://openairdocs.org/sdr/2008FA0000180.md): Stud · broken · Feb 29, 2008 · N793AA · Cessna 501 · Landing Gear Door Actuator
  > LT MLG ACTUATOR TO GEAR STUD BROKEN OFF AT BASE OF THE NUT ON THE TAPER SIDE, NUT AND WASHER SET MISSING AND STUD WAS NOT TIGHT IN THE GEAR.
- [SDR 2006FA0000721](https://openairdocs.org/sdr/2006FA0000721.md): Seat · cracked · Jun 19, 2006 · N501CF · Cessna 501 · Passenger Compartment Equipment
  > UPPER CHAIR BASE ASSEMBLY CRACKED AT CHAIR BACK ATTACH POINTS. ALSO, PREVIOUS INAPPROPRIATE REPAIR. CHAIR WAS REPAIRED IAW STC, STRUCTURAL SEAT REPAIR. (K)
- [SDR 2006FA0000073](https://openairdocs.org/sdr/2006FA0000073.md): Seat · cracked · Oct 20, 2005 · N7700T · Cessna 501 · Cabin Equipment/Furnishings
  > UPPER CHAIR BASE ASSEMBLY CRACKED AT CHAIR BACK ATTACH POINTS. STRESS ON CHAIR BACK AND METAL FATIGUE PROBABLE CAUSE. CHAIR WAS REPAIRED IAW STC. STRUCTURAL SEAT REPAIR. (K)
- [SDR KBM2005F00083](https://openairdocs.org/sdr/KBM2005F00083.md): Indicator · failed · Apr 2, 2005 · N677JM · Cessna 501 · Main Rotor Indicating System
  > DUAL TACH, NEEDLE WILL NOT PROVIDE READING. REMOVED AND REPLACED. (K)
- [SDR 111004](https://openairdocs.org/sdr/111004.md): Line · broken · Nov 9, 2004 · N501AT · Cessna 501 · Hydraulic System, Main
  > THE AIRCRAFT DEPARTED MRY AND WHEN THE GEAR WAS SELECTED "RETRACT", THE HYDRAULIC LOW PRESS AND QUANTITY ANNUNCIATOR LIGHTS ILLUMINATED. THE FLIGHT CREW RETURNED TO MRY AND SELECTED THE GEAR "DOWN" AND HAD TO "BLOW" THE GEAR DOWN AND LANDED UNEVENTFULLY. IT
- [SDR 2005FA0001268](https://openairdocs.org/sdr/2005FA0001268.md): Structure · cracked · Oct 20, 2004 · N7700T · Cessna 501 · Flight Compartment Equipment
  > UPPER CHAIR BASE ASSEMBLY CRACKED AT CHAIR BACK ATTACH POINTS. STRESS ON CHAIR BACK AND METAL FATIGUE PROBABLE CAUSE. CHAIR WAS REPAIRED IAW STRUCTURAL SEAT REPAIR. (K)
- [SDR R2J2004F00001](https://openairdocs.org/sdr/R2J2004F00001.md): Control Cable · misinstalled · Jun 29, 2004 · N501CF · Cessna 501 · Trailing Edge Flap Control System
  > DURING PHASE 5 INSPECTION, UPON REINSTALLING LT WING FLAP CABLES, NOTICED AIRCRAFT WAS DIFFERENT THAN MM DATA AS TO ROUTING OF FLAP CABLES ON LT OB BELLCRANK. EXPERIMENTED AND CONTACTED MFG TECH SUPPORT. FOUND DATA ON PG 27-50-01 PG 203 FIG 201 (SHEET 2) SHO
- [SDR R2J2004F00000](https://openairdocs.org/sdr/R2J2004F00000.md): Brace · mismanufactured · Jun 29, 2004 · N501CF · Cessna 501 · Trailing Edge Flaps
  > WHILE REINSTALLING LT WING FLAP CABLES DURING PHASE 5 INSPECTION, NOTICED CABLE RUN TOO CLOSE TO STRUCTURE. INVESTIGATION AND NOTIFIED MFG TECH SUPPORT. IT WAS DETERMINED LT BRACE 5511037-3 AND RIB 5525130, CABLE PASS THRU WERE INCORRECTLY LOCATED DURING MAN
- [SDR CA040504002](https://openairdocs.org/sdr/CA040504002.md): Reservoir · leaking · May 4, 2004 · Cessna 501 · Hydraulic Reservoir, Main
  > (CAN) HYDRAULIC BRAKE RESERVOIR LEAKING. CRACK WELDED AND RETURNED TO SERVICE.
- [SDR GVR2004F00000](https://openairdocs.org/sdr/GVR2004F00000.md): Seat Back · cracked · Jan 15, 2004 · N13ST · Cessna 501 · Passenger Compartment Equipment
  > UPPER CHAIR BASE ASSEMBLY CRACKED AT CHAIR BACK ATTACH POINTS. STRESS ON CHAIR BACK AND METAL FATIGUE PROBABLE CAUSE. ALSO, CHAIR BASE HAS HAD PREVIOUS INAPPROPRIATE REPAIR MADE. CHAIR WAS REPAIRED.
- [SDR KBM2003F00080](https://openairdocs.org/sdr/KBM2003F00080.md): Window · cracked · Oct 29, 2003 · N677JM · Cessna 501 · Flight Compartment Windows
  > LT FORWARD WINDOW CRACKED AND CRAZED. REMOVED AND REPLACED.
- [SDR 2003FA0000898](https://openairdocs.org/sdr/2003FA0000898.md): Line · corroded · Aug 28, 2003 · N53BB · Cessna 501 · Hydraulic System, Main
  > DURING GEAR RETRACTION AND GEAR EXTENSION, HYDRAULIC FLUID LEAKED UNDER PRESSURE. FOUND THIS LINE CORRODED SO BADLY THAT A HOLE HAD BEEN FORMED IN THE LINE. THE CORROSION WAS DUE TO PREVIOUS ROUTING OF AIR CONDITIONING DUCT TY-WRAPPED TO THE FOUR LANDING GEA
- [SDR 2003FA0000286](https://openairdocs.org/sdr/2003FA0000286.md): Bellcrank · cracked · Feb 28, 2003 · N888MJ · Cessna 501 · Trailing Edge Flaps
  > RIGHT FLAP BELLCRANK FOLLOW-UP ROD ARM ATTACH POINT WAS CRACKED ON UPPER AND LOWER ARM. UPON INSPECTION OF OTHER BELLCRANKS; FOUND THAT SPACERS WERE MISSING BETWEEN FOLLOW-UP ROD-END AND BELLCRANK FOLLOW-UP ARM.
- [SDR 1206S](https://openairdocs.org/sdr/1206S.md): Skin Panel · cracked · Feb 7, 2003 · N501VP · Cessna 501 · Wing, Plate/Skin
  > DURING A PHASE 1-5 DISCOVERED CRACKS IN LT AND RT WING SKIN AT AFT OUTBOARD EDGE OF WHEEL WELL CUT OUT. LT WING CRACK WAS.50 IN. LONG RT WING CRACK WAS 0.40 IN. LONG. REPAIRED IN ACCORDANCE WITH CESSNA REPAIR DEFINITION S-550-0264/02RD DATED NOVEMBER 14, 2000
- [SDR CA020215010](https://openairdocs.org/sdr/CA020215010.md): Duct · cracked · Feb 4, 2002 · Cessna 501 · Turbine Engine Bypass Section
  > (CAN) DURING DAILY INSPECTION, RT ENGINE FRONT & REAR INNER BYPASS DUCT FOUND CRACKED AND PIECE OF REAR UNDER BYPASS DUCT MISSING. AFTER REMOVAL OF THOSE ITEMS FROM THE ENGINE, THE INSPECTION REVEALED THAT THEY WERE PARTS WHICH WAS PREVIOUSLY WELDED/OVERHAUL A
- [SDR 2002FA0000094](https://openairdocs.org/sdr/2002FA0000094.md): Check Valve · failed · Jan 23, 2002 · N501GS · Cessna 501 · Engine Bleed Air System
  > CHECK VALVE FAILED AND ALLOWED THE RT ENGINE BLEED AIR TO FLOW UNABATED FROM RT ENGINE ACROSS AND INTO THE LT ENGINE VIA THE AIRCRAFT BLEED AIR LINES DURING IN FLIGHT RESTARTS OF THE LT ENGINE. HOT BLEED AIR GASES DISTURBED THE NORMAL AIRFLOW INTO THE LT ENGIN
- [SDR 2002FA0000056](https://openairdocs.org/sdr/2002FA0000056.md): Pin · sheared · Jan 9, 2001 · N597CS · Cessna 501 · Trailing Edge Flap Control System
  > THE SHEAR PIN CONNECTING THE FLAP DRIVE MOTOR TO THE FLAP GEARBOX SHEARED OFF AS THE CREW ATTEMPTED TO POSITION FLAPS TO 2ND POSITION. AFTER INVESTIGATION, THE FLAP GEAR BOX WAS DETERMNED TO BE DEFECTIVE.
- [SDR 20001030SH032](https://openairdocs.org/sdr/20001030SH032.md): Control Box · chafed · Oct 30, 2000 · Cessna 501 · Elevator Control System
  > ELEVATOR TRIM CHAIN IN PEDESTAL CHAFED ON SPERRY RI-106 REMOTE CONTROL BOX. CASE OF CONTROL BOX WAS SEVERLY WORN. IT WAS EVIDENT THIS CONDITION EXISTED FOR SOME TIME. THIS COULD HAVE POSSIBLY LED TO JAMMING OF THE ELEVATOR TRIM SYSTEM. UNIT WAS REMOVED AND
- [SDR 99ZZZX2050](https://openairdocs.org/sdr/99ZZZX2050.md): Torque Tube · loose · May 3, 1999 · N41GT · Cessna 501 · Landing Gear Door Retract Section
  > DURING PHASE 2 INSPECTION, FOUND NOSE GEAR DOORS HANGING DOWN. OPEN GEAR DOORS FOUND TORQUE TUBE FOR DOORS, THE ATTACH NUTPLATE HOLDER IS CRACKED ON WELD. PART WAS REPLACED. THE PART WAS INSTALLED NEW WHEN THE AIRCRAFT WAS DELIVERED NEW.
- [SDR 98ZZZX4549](https://openairdocs.org/sdr/98ZZZX4549.md): Adc · malfunctioned · Sep 19, 1998 · N501GS · Cessna 501 · Air Data Computer
  > UPON INITIAL 'POWER-UP' OF AIR DATA COMPUTER, ALTIMETER FALLS OFF LINE (FLAGS), AND REMAINS OFF LINE UNTIL AIR DATA COMPUTER IS IN THE OFF POSITION.
- [SDR 98ZZZX4548](https://openairdocs.org/sdr/98ZZZX4548.md): Adc · malfunctioned · Sep 19, 1998 · N501GS · Cessna 501 · Air Data Computer
  > UPON INITIAL 'POWER-UP' OF AIR DATA COMPUTER, ALTIMETER CLIMBS TO 4,000 FEET, AND DROPS VERY SLOWLY. UPON FLIGHT DESCENT, ALTITUDE 'CAPTURE' IS SLOW, AND CAN INDICATE 200 TO 400 FEET IN ERROR.
- [SDR 98ZZZX4229](https://openairdocs.org/sdr/98ZZZX4229.md): Bulb · failed · Sep 2, 1998 · N106EA · Cessna 501 · Landing Gear Position and Warning
  > WHEN SELECTED DOWN, THE GEAR EXTENDED, BUT NO LEFT MAIN GEAR DOWN LIGHT ILLUMINATED. THE GEAR WAS BLOWN DOWN. THE AIRCRAFT LANDED WITHOUT INCIDENT. INVESTIGATION REVEALED GEAR DOWN LIGHT WAS BURNED OUT. BULB WAS REPLACED AND GEAR WAS FOUND TO FUNCTION NORM
- [SDR 98ZZZX454](https://openairdocs.org/sdr/98ZZZX454.md): Control Cable · frayed · Dec 1, 1997 · N501LL · Cessna 501 · Gust Lock Damper System
  > WHILE PERFORMING PHASE INSPECTION 1 THROUGH 5, FOUND THE ELEVATOR CABLE FRAYED GOING THROUGH THE CONTROL LOCK CONDUIT. THE MM ALLOWS 3 STRANDS BROKEN IN ANY 10 INCH SECTION. THIS CABLE HAD 6 STRANDS BROKEN. SUSPECT CAUSE FOR THIS IS THE FRONT OF THE CONDUIT
- [SDR 97ZZZX4536](https://openairdocs.org/sdr/97ZZZX4536.md): Control Cable · broken · Oct 10, 1997 · N833JL · Cessna 501 · Rudder Control System
  > RUDDER SERVO CABLE BROKEN. DISCOVERED CONDITION WHEN C/W SCHEDULED PHASE 5 CESSNA CITATION INSPECTION. NEW CABLE INSTALLED 8-16-94 AT 3,362 HOURS. FOUND BROKEN AT 3,640.2 HOURS. SUBMITTER STATED SAFETY OF FLIGHT ITEM!!
- [SDR 97ZZZX4535](https://openairdocs.org/sdr/97ZZZX4535.md): Control Cable · broken · Oct 10, 1997 · N833JL · Cessna 501 · Rudder Control System
  > RUDDER SERVO CABLE BROKEN. DISCOVERED CONDITION WHEN C/W SCHEDULED PHASE 5 CESSNA CITATION INSPECTION. NEW CABLE INSTALLED 8-16-94 AT 3,362 HOURS. FOUND BROKEN AT 3,640.2 HOURS. SUBMITTER STATED SAFETY OF FLIGHT ITEM!!
- [SDR 97ZZZX2028](https://openairdocs.org/sdr/97ZZZX2028.md): Hose · failed · Mar 17, 1997 · N501CF · Cessna 501 · Cabin Pressure Control System
  > DURING CRUISE AT FL 370, PRESSURIZATION SET FOR FL 380 WITH CABIN AT APPROX 7,000 FEET. CREW HEARD A DULL NOISE, CABIN OXY MASK DEPLOYED, MASTER WARN RED LIGHTS AND CABIN ALTITUDE INCREASING. ACFT DIVERTED FOR REPAIR. FOUND FAILED BLEED SYS HOSE AND A NON-
- [SDR 97ZZZX1646](https://openairdocs.org/sdr/97ZZZX1646.md): Gas Generator · corrosion hole · Feb 28, 1997 · N1AT · Cessna 501 · Turbine Section
  > WHILE TROUBLESHOOTING AN EXISTING PROBLEM WITH ONE ENGINE, THE DIFFUSER TUBES WERE FOUND TO HAVE HEAVY CORROSION WITH SEVERAL HOLES CORRODED THROUGH. SUBSEQUENT INSPECTION OF THE OTHER ENGINE RESULTED IN FINDING THE SAME PROBLEM. BOTH ENGINES WERE REMOVED AN

Next page: https://openairdocs.org/model/cessna-501/reports.md?page=2

## 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 = '501'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/model/cessna-501/reports

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