# Service difficulty reports: Aero Commander 690B

A list on [Aero Commander 690B](https://openairdocs.org/model/aero-commander-690b.md).

Newest first. General aviation reporting is voluntary.

Page 1 of 2 · 73 reports

- [SDR 2025F00176](https://openairdocs.org/sdr/2025F00176.md): Drag Brace · broken · Aug 4, 2025 · N721TB · Gulstm 690B · Main Landing Gear
  > LEFT MAIN LANDING GEAR DRAG BRACE ASSEMBLY P/N EA1570-501 WAS FOUND CRACKED IN THE UPPER PORTION OF THE DRAG BRACE. CRACK WAS FOUND DURING A PRE FLIGHT INSPECTION. THE CRACK IS IN AN AERA THAT TWIN COMMANDER SL 376 ADDRESSES FOR NDT INSPECTION. CRACKED DRAG BR
- [SDR 2024F00109](https://openairdocs.org/sdr/2024F00109.md): Wire · chafed · Mar 8, 2024 · N55WJ · Gulstm 690B · Fire Protection System Wiring
  > DURING TRAINING FLIGHT AROUND THE PATTERN ABOVE KFMM PILOT NOTICED FIRE WARNING LIGHT INTERMITTENTLY ILLUMINATED. PILOT REPORTED REDUCING POWER AND LIGHT WOULD NOT ILLUMINATE AGAIN. LANDED AIRCRAFT AND REPORTED TO MAINTENANCE THE CONDITION. UPON TROUBLESHOOTIN
- [SDR 2022FA0000295](https://openairdocs.org/sdr/2022FA0000295.md): None · none · Jun 12, 2022 · N71AA · Gulstm 690B · Landing Gear Brake System
  > THE WHEEL AND BRAKES ON THE LH MAIN LANDING GEAR CAUGHT FIRE DURING A LONG TAXI FOR A DEPARTURE. THE INITIAL PICTURES SHOWED ALL COMPONENTS INTACT. THE AIRCRAFT WAS THEN TOWED ON A DOLLY TO THE FBO.
- [SDR 2019FA0000185](https://openairdocs.org/sdr/2019FA0000185.md): Brace · damaged · Jun 1, 2019 · N600WS · Gulstm 690B · Fuselage Main, Structure
  > WHILE PERFORMING SERVICE LETTER NO. 355, FUSELAGE STATION 386.82 SCREW TORQUE INSPECTION, FOUND BOTH BOLTS ATTACHING BRACES 310024-15 AND 310024-16 TO BRACE 310024-53 LOOSE AND THE BOLT HOLES ELONGATED. SERVICE LETTER 355 IS A ONE TIME INSPECTION INTENDED TO
- [SDR LAMA20190624531](https://openairdocs.org/sdr/LAMA20190624531.md): Tire · flat · May 31, 2019 · N690AX · Gulstm 690B · Tire
  > ON LANDING ROLL OUT, THE PIC NOTED A NOISE AND THE AIRCRAFT TENDED TO PULL TO THE LEFT. A VISUAL CONFIRMATION OF A FLAT TIRE ON THE LT MAIN GEAR WAS NOTED. THE AIRCRAFT EXITED THE RUNWAY AND STOPPED ON THE TAXI WAY FOR FURTHER EVALUATION AND REPAIR. THE LT WHE
- [SDR EHSA2019F00173](https://openairdocs.org/sdr/EHSA2019F00173.md): Attach Bolt · loose · Mar 25, 2019 · N690FD · Gulstm 690B · Fuselage Main, Attach Fittings
  > CRACKS WERE FOUND DURING ROUTINE INSPECTION AT STATION 386.82. THIS SECTION IS LOCATED AT THE FORWARD SECTION OF THE ATTACH POINT FOR THE VERTICAL TAIL. UPON FURTHER INSPECTION OF THE REMAINING 8 AIRCRAFT 2 ADDITIONAL AIRCRAFT WERE FOUND TO HAVE MINOR CRACKI
- [SDR 7PTA201808040001](https://openairdocs.org/sdr/7PTA201808040001.md): Engine · power loss · Aug 1, 2018 · N55WJ · Gulstm 690B · Engine (Turbine/Turboprop)
  > AFTER TAKE OFF, DURING CLIMB PASSING THROUGH 4000 AGL, THE RIGHT ENGINE LOST POWER. PILOT SHUT THE ENGINE DOWN, FEATHERED THE PROP AND RETURNED TO DEPARTURE. OPEN.
- [SDR 2018FA0000138](https://openairdocs.org/sdr/2018FA0000138.md): Control Cable · loose · Apr 11, 2018 · N690RJ · Gulstm 690B · Fuel Selector/Shut-Off Valve
  > DURING REQUIRED NEGATIVE TORQUE SYSTEM CHECK FLIGHT, THE RT ENGINE WAS SHUTDOWN AND FAILED TO RE-LIGHT. THE ENGINE WOULD NOT RE-LIGHT DUE TO A FAILURE OF THE AIRFRAME EMERGENCY FUEL SHUTOFF CONTROL ASSEMBLY (CABLE PN 57-7741-2075). AN IN-FLIGHT EMERGENCY WAS D
- [SDR 7PTA2018012500001](https://openairdocs.org/sdr/7PTA2018012500001.md): Hydraulic Line · backed out · Jan 19, 2018 · N260WE · Gulstm 690B · Hydraulic System, Main
  > LEFT ENGINE HYDRAULIC LINE BETWEEN ENGINE HYD PUMP AND FIREWALL. FITTING AT THE FIREWALL LOOSENED UP AND LEAKED HYD FLUID TO THE POINT THE PILOT GOT A HYP PRESS LOW LIGHT. PILOT DECLARED AND EMERGENCY AND LANDED WITHOUT INCIDENT.
- [SDR L50R2015FA0000478](https://openairdocs.org/sdr/L50R2015FA0000478.md): Shaft · broken · Oct 1, 2015 · N2141B · Gulstm 690B · Landing Gear Actuator
  > THE AIRCRAFT EXPERIENCED AN INFLIGHT, UNCOMMANDED NOSE GEAR EXTENSION INTO THE DOWN & LOCKED POSITION. TROUBLESHOOTING IN A MAINTENANCE FACILITY REVEALED THAT THE ACTUATING SHAFT OF THE HYDRAULIC NOSE GEAR RETRACT CYLINDER HAD FRACTURED AND FAILED. BY DESIGN
- [SDR 2015F00046](https://openairdocs.org/sdr/2015F00046.md): Engine · fire · Mar 11, 2015 · N130TT · Gulstm 690B · Engine (Turbine/Turboprop)
  > AFTER LANDING, PILOT WAS TAXING AND THE LEFT ENGINE FIRE LIGHT CAME ON, THE ENGINE LOST ALL POWER AND FIRE AND SPARKS WERE COMING OUT OF THE TAIL PIPE. VISUAL INSPECTION SHOWED NR 3 TURBINE WHEEL BLADES MELTED. AFTER REMOVAL AND DISASSEMBLY OF THE ENGINE, AL
- [SDR 2013FA0000060](https://openairdocs.org/sdr/2013FA0000060.md): Engine · failed · Jan 28, 2013 · N15SF · Gulstm 690B · Engine (Turbine/Turboprop)
  > IN NORMAL CRUISE AT 3,000 FT MSL, THE LT ENGINE LOST COMPLETE POWER AND SUBSEQUENTLY BEGAN TO NTS (NEGATIVE THRUST SENSING). THE ENGINE WAS INDENTIFIED, VERIFIED AND FEATHERED IAW EMERGENCY CHECKLIST PROCEDURES.
- [SDR O9IA2012012400012](https://openairdocs.org/sdr/O9IA2012012400012.md): Blower Motor · burned · Jan 24, 2012 · N71AA · Gulstm 690B · Windshield/Door Rain/Ice Removal
  > DURING CLIMBOUT, PILOT SELECTED WINDSHIELD DEFOG. ELECTRIC ODOR IN COCKPIT AND SMOKE SEEN FROM AREA BEHIND INSTRUMENT PANEL. PILOT NOTICED THAT DEFOG BLOWER WAS NOT FUNCTIONAL. CABIN PRESSURE WAS DUMPED AND ACFT RETURNED TO STATION. INVESTIGATION REVEALED
- [SDR CA120130011](https://openairdocs.org/sdr/CA120130011.md): Line · misinstalled · Dec 21, 2011 · Gulstm 690B · Aircraft Fuel Distribution System
  > (CAN) UPON DISCONNECTING COMPONENTS TO REMOVE THE CENTER SECTION BLADDERS, SOME COMPONENTS WERE FOUND TO BE CONNECTED INCORRECTLY. UPON CONSULTING MM TO VERIFY WIRING, FOUND THE FOLLOWING: THE RT ENGINE FUEL LINE WAS CONNECTED TO THE LT FUEL SHUTOFF AND THE R
- [SDR 2011FA0000699](https://openairdocs.org/sdr/2011FA0000699.md): Strut · cracked · Oct 26, 2011 · N40SM · Gulstm 690B · Main Landing Gear Strut/Axle/Truck
  > LEFT MAIN GEAR STRUT WAS FLAT, TRIED TO SERVICE, WHEN WE APPLIED NITROGEN PRESSURE HYDRAULIC FLUID CAME OUT OF A 3 INCH LONG CRACK IN THE STRUT BODY AND BEARING ASSY. AFTER TALKING WITH MFG THEY HAVE NEVER SEEN THIS TYPE OF FAILURE BEFORE.
- [SDR 2011FA0000320](https://openairdocs.org/sdr/2011FA0000320.md): Skin · misrepaired · May 10, 2011 · N727JA · Gulstm 690B · Wing, Plate/Skin
  > FOUND SB 237 IAW AD 2009-25-2 UPPER WING SKIN, STRAP INSP AND MODIFICATION DONE INCORRECTLY. HARDWARE AND FASTENERS WERE NOT CORRECTLY PLACED AND WERE SUBSTITUTED INCORRECTLY IAW SB 237. MFG WAS NOTIFIED AND AN ENGINEERING REPAIR AND AMOC WAS COMPLETED. ALT
- [SDR 2010FA0001101](https://openairdocs.org/sdr/2010FA0001101.md): Pulley · chafed · Oct 8, 2010 · N555MT · Gulstm 690B · Trailing Edge Flap Control System
  > FLAP PULLEY CHAFES FLAP BRACKET - PREVIOUSLY ADDRESSED IN AD98-07-17 AND SB226.
- [SDR 2010FA0001100](https://openairdocs.org/sdr/2010FA0001100.md): Pulley · chafed · Oct 8, 2010 · N330ES · Gulstm 690B · Trailing Edge Flap Control System
  > FLAP PULLEY AND CLIP CHAFE FLAP BRACKET - ADDRESSED PREVIOUSLY IN BOTH AD98-07-17 AND SB226.
- [SDR 2010F00211](https://openairdocs.org/sdr/2010F00211.md): Control Head · burned · Sep 26, 2010 · N93ME · Gulstm 690B · DME/TACAN System
  > DME HEAD SHORTED INSIDE CAUSING SMOKE TO BE PULLED INTO AVIONICS VENTILATION SYS AND CIRCULATED TO THE ACFT CABIN.
- [SDR NYS2009F00000](https://openairdocs.org/sdr/NYS2009F00000.md): Drag Brace · cracked · May 5, 2009 · N15SF · Gulstm 690B · Main Landing Gear
  > DURING PHASE INSP, FOUND UPPER WEB OF DRAG BRACE CRACKED THRU UPLOCK BRACKET ATTACH HOLE.
- [SDR PAI52007S4751](https://openairdocs.org/sdr/PAI52007S4751.md): Line · ruptured · Oct 24, 2007 · N91CT · Gulstm 690B · Hydraulic System, Main
  > HYDRAULIC PRESSURE FLEX LINE AT RT ENGINE DRIVEN HYDRAULIC PUMP RUPTURED IN FLIGHT CAUSING LOSS OF HYDRAULIC FLUID.
- [SDR 2007FA0000092](https://openairdocs.org/sdr/2007FA0000092.md): Turbine Wheel · damaged · Jan 15, 2007 · N690LL · Gulstm 690B · Turbine Section
  > INSPECTION OF ENGINE REVEALED DAMAGE TO 3RD STAGE TURBINE ROTOR VISIBLE THROUGH ENGINE TAILPIPE. ENGINE WAS REMOVED FROM AIRCRAFT AND THE TURBINE SECTION MODULE REMOVED TO INVESTIGATE FOR CAUSE OF DAMAGE. UPON INSPECTION 4 EA PINS WERE FOUND MISSING FROM 2ND
- [SDR 2006FA0000083](https://openairdocs.org/sdr/2006FA0000083.md): Skin · corroded · Jan 2, 2006 · N690LL · Gulstm 690B · Ailerons
  > CORROSION BEYOND 10 PERCENT LIMITS IN LEADING EDGE SKIN UNDER BALANCE WEIGHTS. FOUND DURING SB238. (K)
- [SDR FTU2004F00003](https://openairdocs.org/sdr/FTU2004F00003.md): Spar · cracked · Jun 7, 2004 · N20MA · Gulstm 690B · Ailerons
  > WHILE COMPLYING WITH SB 236. AILERON SPAR IB HINGE INSPECTION AND REINFORECMENT DATED MARCH 9, 2004 PART 1, BOTH AILERON IB SPAR WEBS AT IB HINGE AREA WERE FOUND CRACKED, THE AFT AND FORWARD END RIBS ALSO SHOWED CRACKS. WHILE COMPLYING WITH THE NEEDED REPAIR
- [SDR LDI2004F00000](https://openairdocs.org/sdr/LDI2004F00000.md): Trunnion Pin · seized · Feb 9, 2004 · N25RZ · Gulstm 690B · Nose/Tail Landing Gear
  > NOSE GEAR WOULD NOT RETRACT. TRUNNION PINS HAD FROZEN UP. TRUNNION PINS DO NOT HAVE ANY LUBRICATION GREASE ZERTS WHICH COULD HAVE PREVENTED THE NOSE GEAR TRUNNION FROM FREEZING UP.
- [SDR W1J2004F00000](https://openairdocs.org/sdr/W1J2004F00000.md): Retaining Ring · out of position · Feb 6, 2004 · N690RP · Gulstm 690B · Propeller Assembly
  > ON 2/6/04 A NORMAL ENGINE RUN AND TAXI WAS BEING PERFORMED. AS WE ATTEMPTED TO TAXI OUT THE LT SIDE SEEMED TO HAVE NO THRUST OR MOVEMENT. WE HEARD A LOUD THUMP OR POP ON THE LT SIDE OF THE AIRCRAFT. AT THAT TIME WE ABORTED THE TAXI AND SHUT DOWN BOTH ENGINE
- [SDR FTU2003F00004](https://openairdocs.org/sdr/FTU2003F00004.md): Exciter · failed · Feb 20, 2003 · N690GS · Gulstm 690B · Exciter
  > EXCITER BOX HAD INTERMITTENT FAILURE AFTER ONLY BEING IN SERVICE FOR 11.3 HOURS. THIS UNIT WAS ORIGINALLY A MFG BLUE LABELED REMANUFACTURED PART. INSTALLED ANOTHER OVERHAULED UNIT, OPS CHECKED SYSTEM, NO PROBLEMS FOUND. THIS UNIT RETURNED TO VENDOR FOR POSS
- [SDR FTU2003F00002](https://openairdocs.org/sdr/FTU2003F00002.md): Pump · mismanufactured · Feb 7, 2003 · N32BW · Gulstm 690B · Hydraulic Pump (Electric/Engine), Main
  > WHEN PUMP WAS INSTALLED, IT WAS DISCOVERED THAT THE THREADS ON THE IN AND OUT PORTS WERE STRAIGHT THREAD. THE FITTINGS THAT ARE CALLED OUT IN THE IPC ARE PIPE THREAD, BECAUSE OF THE LIMITED SPACE AT THE PUMP MOUNTED POSITION. OVERHAUL PUMP WAS CHANGED AND TH
- [SDR 2003FA0000516](https://openairdocs.org/sdr/2003FA0000516.md): Cap · separated · Nov 1, 2002 · N77UA · Gulstm 690B · Rudder, Plate/Skin
  > SHORTLY AFTER LEVELING OFF AT A CRUISE ALTITUDE OF 16,000 FT, THE AIRCRAFT MADE A HARD UNCOMMANDED TURN TO THE LEFT AND LOST APPROX 1000 FT ALTITUDE BEFORE THE PILOT WAS ABLE TO REGAIN CONTROL. POST FLIGHT INSPECTION REVEALED THAT THE TOP PORTION OF THE RUDDE
- [SDR 2002FA0001222](https://openairdocs.org/sdr/2002FA0001222.md): Indicator · defective · Sep 30, 2002 · N690HT · Gulstm 690B · Engine EGT/TIT Indicating System
  > NON-LINEAR ERROR GAGE READS COOLER THAN INPUT 5 DEGREE AT 400, 6 DEGREE C 500, 7 DEGREES C 600 AS HIGH AS 10 DEGREE AT TIMES ZERO ERROR AT 200 DEGREE. DEFECT FOUND DURING CALIBRATION OF EGT DUE TO TEMP SPLITS.
- [SDR 2002FA0000924](https://openairdocs.org/sdr/2002FA0000924.md): Relay · failed · Jul 22, 2002 · N771BA · Gulstm 690B · Battery/Charger System
  > NR 2 BATTERY MAIN RELAY FAILED CLOSED. THE FAILURE CREATED HEAT DISTRESS AND MELTED THE CONTACTORS WITHIN THE RELAY.
- [SDR O9I2002F00002](https://openairdocs.org/sdr/O9I2002F00002.md): Rib · cracked · Apr 24, 2002 · N60DB · Gulstm 690B · Vertical Stabilizer, Spar/Rib
  > DURING A ROUTINE PERIODIC INSPECTION A CRACK WAS FOUND IN VERTICAL STABILIZER BOTTOM RIB (PN 410008197). THE CRACK RADIATED FROM THE SIDE FLANGE (LEFT) FORWARD RIVET AND EXTENDED TO THE EDGE OF THE RIB. THE TOTAL CRACK LENGTH IS.375 INCH. THE LOWER RIB O
- [SDR MV52002F00001](https://openairdocs.org/sdr/MV52002F00001.md): Monitor · failed · Mar 18, 2002 · N690HT · Gulstm 690B · Fuel Quantity Indicator
  > FUEL QUANTITY INDICATION -0- AT ALL TIMES. REPLACEMENT OF FUEL QUANTITY CONTROL MONITOR CORRECTED INDICATION PROBLEM.
- [SDR MV52002F00000](https://openairdocs.org/sdr/MV52002F00000.md): Tube · cracked · Nov 26, 2001 · N517HP · Gulstm 690B · Entrance Stairs
  > FORWARD CABIN DOOR STEP TUBE CRACKED AT ROLL PIN (PN MS9048-047) ATTACHMENT. CRACK EXTENDED ONE INCH AFT FROM THE ROLL PIN.
- [SDR MV52001F00001](https://openairdocs.org/sdr/MV52001F00001.md): Skin · cracked · Oct 19, 2001 · N771BA · Gulstm 690B · Fuselage Main, Plate/Skin
  > UPPER FUSELAGE SKIN CRACKED AT COMM ANTENNA MOUNTING BASE LOCATED AT STATION 210, FIVE INCHES LEFT OF AIRCRAFT CENTERLINE. ANTENNA INSTALLATION WAS ORIGINAL FROM AIRCRAFT MANUFACTURE. CRACK ATTRIBUTED TO INSUFFICIENT METAL THICKNESS TO BOTH OUTER SKIN OF.02
- [SDR MV52001F00000](https://openairdocs.org/sdr/MV52001F00000.md): Angle · cracked · Aug 10, 2001 · N690SM · Gulstm 690B · Main Landing Gear
  > ANGLE LOCATED AT LEFT MAIN LANDING GEAR TO WING ATTACH AREA CRACKED AT INBOARD SIDE. CRACK EXTENDED ONE INCH FROM AFT PORTION OF WING AREA FORWARD.
- [SDR 20001207SH017](https://openairdocs.org/sdr/20001207SH017.md): Drag Brace · cracked · Nov 20, 2000 · N9LV · Gulstm 690B · Landing Gear Retraction/Extension System
  > UPPER PORTION OF DRAG BRACE CRACKED. CRACK EXTENDED APPROXIMATELY.50 INCH. (X)
- [SDR 20001130SH003](https://openairdocs.org/sdr/20001130SH003.md): Seat Track · corroded · Nov 9, 2000 · N9LV · Gulstm 690B · Fuselage, Seat/Cargo Attach Fittings
  > PILOT INBOARD SEAT RAIL LOCATED AT THE FLOOR ATTACHMENT HAD EVIDENCE OF CORROSION AT THE AFT ATTACHMENT SCREWS. (X)
- [SDR 20001109SH009](https://openairdocs.org/sdr/20001109SH009.md): Aileron · cracked · Oct 13, 2000 · Gulstm 690B · Ailerons
  > DURING INSPECTION, 3 EACH.25 INCH LONG CRACKS WERE FOUND ON THE LEADING EDGE AT THE FASTENERS USED TO SECURE THE AILERON BALANCE WEIGHT. AFTER THE LEADING EDGE WAS REMOVED FROM THE AILERON AS PART OF THE REPAIR, A.75 INCH LONG CRACK WAS FOUND IN THE LOWER I
- [SDR 20001026SH008](https://openairdocs.org/sdr/20001026SH008.md): Arm · cracked · Oct 2, 2000 · N771BA · Gulstm 690B · Landing Gear Door Retract Section
  > ARM ASSY CRACKED AT LANDING GEAR DOOR ATTACH AREA. (X)
- [SDR 20000622SH031](https://openairdocs.org/sdr/20000622SH031.md): Control Cable · frayed · Jun 9, 2000 · N489GA · Gulstm 690B · Rudder Control System
  > RIGHT RUDDER CABLES FRAYED. (X)
- [SDR 20000524SH014](https://openairdocs.org/sdr/20000524SH014.md): Control Cable · frayed · May 11, 2000 · N690JH · Gulstm 690B · Rudder Control System
  > LEFT AND RIGHT FORWARD RUDDER CABLES HAD BROKEN WIRE STRANDS AT LEFT AND RIGHT PULLEY AT BS 99.00. FOUND DURING 100-HOUR INSPECTION. ROTATED CABLES 10 DEGREES FROM PULLEY TO SEE BROKEN WIRE STRANDS. CAUSE, DETERIORATION DUE TO TIME. AIRCRAFT TT: 5,313 HOU
- [SDR 20000524SH013](https://openairdocs.org/sdr/20000524SH013.md): Control Cable · broken · May 11, 2000 · N690JH · Gulstm 690B · Rudder Control System
  > LEFT AND RIGHT FORWARD RUDDER CABLES HAD BROKEN WIRE STRANDS AT LEFT AND RIGHT PULLEY AT BS 99.00. FOUND DURING 100-HOUR INSPECTION. ROTATED CABLES 10 DEGREES FROM PULLEY TO SEE BROKEN WIRE STRANDS. CAUSE, DETERIORATION DUE TO TIME. AIRCRAFT TT: 5,313 HOU
- [SDR 20000516SH002](https://openairdocs.org/sdr/20000516SH002.md): Channel · cracked · Apr 21, 2000 · N81703 · Gulstm 690B · Ailerons
  > AFTER REMOVAL OF BOTH RT AND LT AILERON INBOARD HINGE ASSEMBLIES, FOUND BOTH AILERON ''U'' CHANNELS HAD CRACKS IN THE WEB AROUND THE LOWER HINGE ATTACH BOLTS. SUBMITTER RECOMMENDED INSTALLING A REINFORCING PLATE ON AFT SIDE OF WEB IAW AC 43.131B PAR 4-58, 4-5
- [SDR 20000516SH001](https://openairdocs.org/sdr/20000516SH001.md): Channel · cracked · Apr 21, 2000 · N81703 · Gulstm 690B · Ailerons
  > AFTER REMOVAL OF BOTH RT AND LT AILERON INBOARD HINGE ASSEMBLIES, FOUND BOTH AILERON ''U'' CHANNELS HAD CRACKS IN THE WEB AROUND THE LOWER HINGE ATTACH BOLTS. SUBMITTER RECOMMENDED INSTALLING A REINFORCING PLATE ON AFT SIDE OF WEB IAW AC 43.131B PAR 4-58, 4-5
- [SDR 20000522SH002](https://openairdocs.org/sdr/20000522SH002.md): Line · broken · Apr 20, 2000 · N690SC · Gulstm 690B · Fuel Control/Reciprocating Engines
  > RIGHT ENGINE WOULD NOT START. FOUND PY LINE BROKEN JUST AFT OF LINE FITTING. REPLACED LINE. (X)
- [SDR 99ZZZX4242](https://openairdocs.org/sdr/99ZZZX4242.md): Control Cable · frayed · Oct 18, 1999 · N11HY · Gulstm 690B · Elevator Tab Control System
  > CABLE FOR TRIM CONTROL AT THE COLLINS AUTOPILOT ELEVATOR TRIM SERVO WAS FOUND FRAYED APPROXIMATELY 90 PERCENT THROUGH.
- [SDR 99ZZZX14](https://openairdocs.org/sdr/99ZZZX14.md): Autopilot · misinstalled · Nov 30, 1998 · N690TG · Gulstm 690B · Autopilot System
  > AUTOPILOT WOULD NOT CAPTURE NAV OR SLOW TO CAPTURE. AUTOPILOT WOULD DRIFT FROM PROPER COURSE WHEN CAPTURED. THIS WAS DUE TO INCORRECT HSI MODE RELAY INTERFACE WIRING FOR GPS. WIRING WAS INTERRUPTED AT AUTOPILOT FLIGHT DIRECTOR FD 112V AND SHOULD HAVE BEEN I
- [SDR 99ZZZX948](https://openairdocs.org/sdr/99ZZZX948.md): Tire · leaking · Nov 1, 1998 · N205BN · Gulstm 690B · Wheel/Ski/Float
  > TIRES WERE REPLACED BECAUSE THEY WOULD NOT HOLD AIR. INSPECTION REVEALED DILATING HOLES ALLOWING AIR LOSS TO CONTINUE AFTER SEVERAL DAYS. LEAKAGE BECAME WORSE TO THE POINT RE-INFLATION WAS NEEDED AFTER EACH FLIGHT. HIGH RISK OF LANDING WITH FLAT TIRE ON TRI
- [SDR 99ZZZX947](https://openairdocs.org/sdr/99ZZZX947.md): Tire · leaking · Nov 1, 1998 · N205BN · Gulstm 690B · Wheel/Ski/Float
  > TIRES WERE REPLACED BECAUSE THEY WOULD NOT HOLD AIR. INSPECTION REVEALED DILATING HOLES ALLOWING AIR LOSS TO CONTINUE AFTER SEVERAL DAYS. LEAKAGE BECAME WORSE TO THE POINT RE-INFLATION WAS NEEDED AFTER EACH FLIGHT. HIGH RISK OF LANDING WITH FLAT TIRE ON TRI

Next page: https://openairdocs.org/model/aero-commander-690b/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 = '690B'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/model/aero-commander-690b/reports

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