# Service difficulty reports: Dehavilland DHC-3 A list on [Dehavilland DHC-3](https://openairdocs.org/model/dehavilland-dhc-3.md). Newest first. General aviation reporting is voluntary. Page 1 of 8 · 394 reports - [SDR 2026FA0000655](https://openairdocs.org/sdr/2026FA0000655.md): Ignition Switch · failed · Aug 19, 2026 · N205RC · Dhav DHC3 · Ignition System > AUTO IGNTION SWITCH FAILURE. SWITCH FAILED INTERNALLY. - [SDR 2026F00175](https://openairdocs.org/sdr/2026F00175.md): Igniter · burned · Aug 13, 2026 · N510PR · Dhav DHC3 · Spark Plug/Igniter > IGNITORS BURN THROUGH TO ELECTRICAL LEAD WITHIN 100 HOURS OF USE. HOT TURBINE COMBUSTION GASES ESCAPE THROUGH IGNITOR BODY TO BURN CONNECTION AND IGITOR LEAD. LEAD SEIZES IN PLACE AND CANNOT BE REMOVED WITHOUT BEING DESTROYED. IGNITOR FAILS, IGNITION LEAD - [SDR 2026FA0000610](https://openairdocs.org/sdr/2026FA0000610.md): Fork · cracked · Jul 29, 2026 · N88765 · Dhav DHC3 · Fuselage, Landing Gear Attach Fittings > CRACKED TAIL LANDING GEAR FORK PART NUMBER C3UT85-3. CRACK IN CRITICAL AREA OF FORK WHERE FAILURE COULD CAUSE MAJOR DAMAGE TO AIRCRAFT DURING TAKE OFF OR LANDING. ORIGINAL OEM CAST TAIL FORK FAILS AND BREAKS WHICH FORCES TAIL LANDING GEAR WITH TAIL SKI TO CO - [SDR 2026FA0000487](https://openairdocs.org/sdr/2026FA0000487.md): Bolt · sheared · Jun 5, 2026 · N636KT · Dhav DHC3 · Wheel/Ski/Float > PILOT REPORTED ON PREFLIGHT THAT THE RH MAIN SKI BOLT WAS LOOSE AND SUSPECTED BROKEN. INSPECTED AND VERIFIED THE MAIN SKI ATTACH BOLT C3US156-3 WAS BROKEN. - [SDR 2024F00294](https://openairdocs.org/sdr/2024F00294.md): Breather Tube · misrouted · Nov 19, 2024 · N3324T · Dhav DHC3 · Engine (Turbine/Turboprop) > SMOKE IN CABIN. CORRECTIVE ACTION: FOUND ENGINE BREATHER TUBE MIS-ROUTED CAUSING BREATHER VAPORS TO ENTER THE LOWER FUSELAGE. - [SDR 2023FA0000098](https://openairdocs.org/sdr/2023FA0000098.md): Intake Duct · frozen · Feb 22, 2023 · N92858 · Dhav DHC3 · Engine (Turbine/Turboprop) > ENGINE IS A PT6A-34, VASAR STC FOR THE PRATT AND WHITNEY TURBINE. PILOT REPORTED A SURGE IN THE ENGINE DURING TAKEOFF AND A POWER LOSS. THE ENGINE RECOVERED QUICKLY AFTER THE POWER LOSS. THE AIRCRAFT WAS BEING RELOCATED FROM NOT FAR FROM THE MAIN HANGER, SO TH - [SDR 2022F00374](https://openairdocs.org/sdr/2022F00374.md): Attach Bolt · cracked · Sep 29, 2022 · N80945 · Dhav DHC3 · Wheel/Ski/Float > MLG SKI ATTACH BOLT CRACKED AND DEFORMED. - [SDR 2022FA0000508](https://openairdocs.org/sdr/2022FA0000508.md): Spar · cracked · Sep 15, 2022 · N92858 · Dhav DHC3 · Elevator Structure > LEFT ELEVATOR SERVO TAB SPAR ON ELEVATOR AT HINGE ATTACH POINT CRACKED. - [SDR 2021F00302](https://openairdocs.org/sdr/2021F00302.md): Fuel Control · failed · Oct 19, 2021 · N3324T · Dhav DHC3 · Fuel Control/Reciprocating Engines > FUEL CONTROL PERFORMED AN COMMANDED ACCELERATION, OVERSPEED GOVERNOR STOPPED THE OVERSPEED FROM HAPPENING. - [SDR ERHA2021062300182](https://openairdocs.org/sdr/ERHA2021062300182.md): Tail Wheel · detached · Jun 15, 2021 · N636KT · Dhav DHC3 · Nose/Tail Landing Gear Strut/Axle > TAILWHEEL ASSEMBLY PN-C3UT144-9 BROKE FREE FROM THE AIRFRAME JUST AFTER TAKE OFF. THE TAILWHEEL ATTACH BOLT HAD BEEN REPAIRED. - [SDR CA190709014](https://openairdocs.org/sdr/CA190709014.md): Fuel Control · malfunctioned · Jun 11, 2019 · Dhav DHC3 · Fuel Control/Turbine Engines > (CAN) PILOT APPLIED REVERSE POWER TO BACK AWAY FROM THE DOCK. WHEN THE POWER LEVER WAS MOVED BACK TO THE IDLE POSITION, THE ENGINE ACCELERATED UNCONTROLLED. PILOT TRIED TO SLOW THE AIRCRAFT DOWN BY PLACING POWER LEVER BACK INTO BETA RANGE, THE ENGINE DECELERAT - [SDR CA190412006](https://openairdocs.org/sdr/CA190412006.md): Duct · cracked · Apr 10, 2019 · Dhav DHC3 · Turbine Engine Combustion Section > (CAN) DURING A REGULARLY SCHEDULED BORESCOPE INSPECTION, DAMAGE WAS NOTED ON THE LARGE EXIT DUCT (LED). UPON FURTHER INSPECTION, A CRACK WAS FOUND ON THE INNER LINING AND NUMEROUS CRACKS WERE FOUND ON THE OUTER LINING ALONG THE WELD SEAM. (TC# 20190412006) - [SDR CA190412007](https://openairdocs.org/sdr/CA190412007.md): Engine · damaged · Apr 10, 2019 · Dhav DHC3 · Turbine Engine Combustion Section > (CAN) DURING A NON-SCHEDULED HOT SECTION INSPECTION, THE BOLTS (PART NUMBER MS9574-06) SECURING THE CONTAINMENT RING TO POWER TURBINE VANE RING AT FLANGE D WERE FOUND LOOSE. THE LOCKWIRE WAS INTACT, BUT THERE WAS EVIDENCE OF FRETTING FOUND UNDERNEATH THE HEADS - [SDR CA190227016](https://openairdocs.org/sdr/CA190227016.md): Fuel Control · failed · Feb 24, 2019 · Dhav DHC3 · Fuel Control/Turbine Engines > (CAN) TO INITIATE DESCENT FOR LANDING, THE PILOT BROUGHT BACK THE POWER. AS THE POWER LEVER WAS BROUGHT BACK, POWER (INDICATED AND ACTUAL) STOPPED REDUCING AROUND 40 PSI, THE THROTTLE LEVER WAS ULTIMATELY BROUGHT TO THE IDLE STOP (GATE) WITH THE POWER (INDICAT - [SDR CA190307019](https://openairdocs.org/sdr/CA190307019.md): Fuel Control · malfunctioned · Feb 16, 2019 · Dhav DHC3 · Fuel Control/Turbine Engines > (CAN) PILOT REPORTED THAT THE AIRCRAFT WAS NOT MAKING MAX POWER. ENGINE GROUND RUNS WERE CARRIED OUT AND WAS UNABLE TO OBTAIN MAX NG. ALSO, THE NG WAS NOT STABLE, IT WAS SLOWLY DECELERATING. THE FCU, PART NUMBER 3244786-8-7, WAS CHANGED AND MAX POWER WAS OBTAI - [SDR TQOA2019F00035](https://openairdocs.org/sdr/TQOA2019F00035.md): Bearing · destroyed · Jul 30, 2018 · N959PA · Dhav DHC3 · Rudder Control System > PILOT REPORTED THAT HE HAD DIFFICULTY MOVING THE RUDDER SO THE PILOT DECLARED AN EMERGENCY LANDING AND LANDING SAFELY. WHILE INSPECTING THE RUDDER SYSTEM, THE BOTTOM BEARING WAS FOUND TO BE IN PIECES WHICH CAUSE EXCESSIVE PLAY WHEN RUDDER WAS IN MOTION. - [SDR HNAA2016041800100](https://openairdocs.org/sdr/HNAA2016041800100.md): Bulb · inoperative · Apr 15, 2016 · N326EN · Dhav DHC3 · Emergency Lighting > EMERGENCY LIGHT INOPERATIVE AT 10DF SECOND RED LT. R & R BULB. - [SDR CA160301016](https://openairdocs.org/sdr/CA160301016.md): Ignition Lead · worn · Feb 23, 2016 · Dhav DHC3 · Ignition Harness (Distribution) > (CAN) DURING A REGULARLY SCHEDULED INSPECTION, THE LEFT HAND IGNITION LEAD, P/N CH53399-04, WAS FOUND TO BE WORN AT THE IGNITER ATTACHMENT END. THE LEAD HAD 509.2 HOURS SINCE INSTALLATION. THIS OPERATOR HAS HAD NUMEROUS PROBLEMS WITH IGNITION LEADS FAILING. - [SDR CA160225005](https://openairdocs.org/sdr/CA160225005.md): Ignition Lead · failed · Feb 21, 2016 · Dhav DHC3 · Ignition Harness (Distribution) > (CAN) DURING A REGULARLY SCHEDULED INSPECTION, THE LEFT HAND IGNITION LEAD, WAS FOUND TO BE WORN AT THE IGNITER ATTACHMENT END. THIS OPERATOR HAS HAD NUMEROUS PROBLEMS WITH IGNITION LEADS FAILING. - [SDR CA160202009](https://openairdocs.org/sdr/CA160202009.md): Csu · failed · Jan 31, 2016 · Dhav DHC3 · Propeller Governor > (CAN) CSU (PROPELLER GOVERNOR) ALLOWING PROPELLER RPM TO CHANGE WITH TORQUE CHANGES, AS POWER WAS ADVANCED OR RETARDED THE PROP RPM WOULD RISE OR FALL BY UP TO 75 RPM PRIOR TO THE GOVERNOR CATCHING IT AND GOVERNING RPM. CSU WAS REPLACED WITH A SERVICEABLE UNIT - [SDR CA151125015](https://openairdocs.org/sdr/CA151125015.md): Hinge · damaged · Nov 20, 2015 · Dhav DHC3 · Trailing Edge Flaps > (CAN) AIRCRAFT WAS TAKING OFF FROM WATER. AT ABOUT 50 FT OF ALTITUDE, THE A/C UNEXPECTANTLY SANK AND INDUCED A LEFT HAND ROLL. THE PILOT TOOK ACTION TO MAINTAIN CONTROL AND LANDED SAFELY. UPON CARRYING OUT THE INVESTIGATION, IT WAS FOUND THAT THE INBOARD FLA - [SDR CA151110010](https://openairdocs.org/sdr/CA151110010.md): Ignition Lead · damaged · Nov 8, 2015 · Dhav DHC3 · Ignition Harness (Distribution) > (CAN) DURING A REGULARLY SCHEDULED INSPECTION, THE LEFT HAND IGNITION LEAD, P/N CH53399-04, WAS FOUND TO BE WORN AT THE IGNITER ATTACHMENT END. THE LEAD HAD 389.5 HOURS SINCE INSTALLATION. THIS OPERATOR HAS HAD NUMEROUS PROBLEMS WITH IGNITION LEADS FAILING. - [SDR CA151022007](https://openairdocs.org/sdr/CA151022007.md): Ignition Lead · worn · Oct 21, 2015 · Dhav DHC3 · Ignition Harness (Distribution) > (CAN) DURING A REGULARLY SCHEDULED INSPECTION, THE RIGHT HAND IGNITION LEAD, P/N CH53399-04, WAS FOUND TO BE WORN AT THE IGNITER ATTACHMENT END. THE TIP WAS BENT. THIS OPERATOR HAS HAD NUMEROUS PROBLEMS WITH IGNITION LEADS FAILING. - [SDR CA151014009](https://openairdocs.org/sdr/CA151014009.md): G Switch · failed · Oct 9, 2015 · Dhav DHC3 · Emergency Locator Beacon > (CAN) DURING THE ELT ANNUAL RECERTIFICATION, BENCH TESTING FOUND THAT THE G-SWITCH FAILED. THERE WERE ALSO TWO SCREWS WITH O - RINGS MISSING AND THE H-SHIELD WAS CRACKED. THIS OPERATOR HAS HAD SEVERAL OTHER ELT G-SWITCHES FAIL BENCH TESTING AND REQUIRED REPLA - [SDR CA150831008](https://openairdocs.org/sdr/CA150831008.md): Ignition Lead · broken · Aug 26, 2015 · Dhav DHC3 · Ignition Harness (Distribution) > (CAN) DURING A REGULARLY SCHEDULED INSPECTION, THE RIGHT HAND IGNITION LEAD WAS FOUND TO BE BROKEN AT THE IGNITER ATTACHMENT END. THE LEAD HAD A TSN OF 833.9 HOURS. THIS OPERATOR HAS HAD NUMEROUS PROBLEMS WITH IGNITION LEADS FAILING. IT SEEMS TO BE MOSTLY THE - [SDR CA150818009](https://openairdocs.org/sdr/CA150818009.md): Ignition Lead · worn · Aug 12, 2015 · Dhav DHC3 · Ignition Harness (Distribution) > (CAN) DURING A REGULARLY SCHEDULED INSPECTION, BOTH LEFT AND RIGHT HAND IGNITION LEADS WERE FOUND TO BE WORN AT THE IGNITER ATTACHMENT ENDS. - [SDR CA150831010](https://openairdocs.org/sdr/CA150831010.md): Duct · cracked · Aug 10, 2015 · Dhav DHC3 · Turbine Engine Combustion Section > (CAN) DURING A SCHEDULED HOT SECTION INSPECTION, THE LARGE EXIT DUCT (LED) WAS FOUND CRACKED IN MULTIPLE LOCATIONS ALONG THE OUTER SEAM WELD. THE TSO OF THE LED IS 1687.8 HOURS. THIS OPERATOR HAS HAD NUMEROUS PREVIOUS INSTANCES OF CRACKED LED`S. - [SDR CA150629022](https://openairdocs.org/sdr/CA150629022.md): Motor · failed · Jun 28, 2015 · Dhav DHC3 · Fuel Boost Pump > (CAN) WHEN NR 2 BOOST PUMP WAS SELECTED, PUMP SOUNDED VERY ROUGH & LABORED. OVERHAULED MOTOR WAS INSTALLED & DEFECT WAS CLEARED. - [SDR CA150609005](https://openairdocs.org/sdr/CA150609005.md): Control Wheel · cracked · Jun 9, 2015 · Dhav DHC3 · Stabilizer Control System > (CAN) UPON ROUTINE INSPECTION, THE RIVETS ON THE STABILIZER CONTROL WHEEL APPEARED LOOSE. REMOVED THE STABILIZER CONTROL WHEEL FOR FURTHER INSPECTION AND FOUND IT TO BE CRACKED AT THE CENTER HUB AT RIVET LOCATIONS. CRACK LENGTH WAS IN A 2" RADIUS FROM RIVET - [SDR JKGC20150604001](https://openairdocs.org/sdr/JKGC20150604001.md): Servo · damaged · Jun 4, 2015 · N3125N · Dhav DHC3 · Elevator Control System > PILOT FELT VIBRATION IN YOKE, MADE PRECAUTIONARY LANDING. RT ELEVATOR SERVO, SERVO CONTROL ROD & ELEVATOR SKINS SUSTAINED DAMAGE. - [SDR CA150526006](https://openairdocs.org/sdr/CA150526006.md): Float · leaking · May 21, 2015 · Dhav DHC3 · Fuel Control/Reciprocating Engines > (CAN) FUEL CONTINUED TO LEAK FROM ENG CARB AIR BOX DRAIN PIPE AFTER START UP. STUCK FLOAT SUSPECT. CARB REPLACED WITH SERVICEABLE UNIT & GND RUNS & LEAK CHECK COMPLIED WITH, NO FAULT FOUND. FLOAT ON REMOVED CARB METAL TYPE FUEL HAS LEAKED INTO NORMALLY EMP - [SDR CA150526005](https://openairdocs.org/sdr/CA150526005.md): Cam · worn · May 19, 2015 · Dhav DHC3 · Reciprocating Engine Power Section > (CAN) AT SPRING RUN UP, ENG SOUNDS LIKE TWIN ENG ACFT WITH PROPS OUT OF SYNC. CAM RING EXHAUST TRACK WEAR SUSPECTED AS IS A KNOWN PROBLEM WITH THIS INDICATION. CAM INSPECTED & WEAR FOUND ON 3 OF 4 CAM LOBES OF EXHAUST TRACK. CAM PN 11768 & 9 EXTRACK ROLLERS - [SDR CA150506008](https://openairdocs.org/sdr/CA150506008.md): G Switch · failed · May 4, 2015 · Dhav DHC3 · Emergency Locator Beacon > (CAN) DURING THE G406-4, ELT`S ANNUAL RECERTIFICATION, IT WAS FOUND THAT THE G-SWITCH INTERMITTENTLY FAILED. THIS WAS THE OPERATOR`S 4TH ELT G-SWITCH THAT FAILED BENCH TESTING AND REQUIRED REPLACEMENT IN THE LAST 4 MONTHS. - [SDR CA150416004](https://openairdocs.org/sdr/CA150416004.md): Control Rod · bent · Apr 16, 2015 · Dhav DHC3 · Trailing Edge Flap Control System > (CAN) ANNUAL INSPECTION, LT WING, FOUND THE ACTUATING CONTROL ROD FOR FLAP SYSTEM, PN C3CF105-7 WAS BENT, DEFLECT.5", INSIDE WING, NEAR FUSELAGE, JUST BEHIND THE FIBER ROLLER APPROXIMATE 2", IN NORMAL OPERATION THIS SECTION DOESN`T TOUCH THE FIBER ROLLER, NO - [SDR CA150408030](https://openairdocs.org/sdr/CA150408030.md): Bolt · loose · Apr 7, 2015 · Dhav DHC3 · Turbine Section > (CAN) DURING A NON-SCHEDULED HOT SECTION INSPECTION, THE BOLTS SECURING THE CONTAINMENT RING TO POWER TURBINE VANE RING AT FLANGE D WERE FOUND LOOSE. THE LOCK WIRE WAS INTACT, BUT THERE WAS EVIDENCE OF FRETTING FOUND UNDERNEATH THE HEADS OF THE BOLTS. THE BO - [SDR CA150408029](https://openairdocs.org/sdr/CA150408029.md): Duct · cracked · Apr 7, 2015 · Dhav DHC3 · Engine Collector/Tailpipe/Nozzle > (CAN) DURING A NON-SCHEDULED HOT SECTION INSPECTION, THE LARGE EXIT DUCT WAS FOUND CRACKED IN MULTIPLE LOCATIONS ALONG THE OUTER SEAM WELD. THE CRACKS TOTALED APPROXIMATELY HALF OF THE CIRCUMFERENCE OF THE LED. THE TSO OF THE LED IS 1887.5 HOURS. THIS OPERATO - [SDR CA150408026](https://openairdocs.org/sdr/CA150408026.md): Blade · sheared · Mar 31, 2015 · Dhav DHC3 · Turbine Section > (CAN) THE PILOT WAS IN A HOLDING PATTERN, WAITING FOR THE LANDING AREA TO CLEAR. THE ACFT WAS AT 1500 FT & AFTER FIVE MINUTES OF CIRCLING, THERE WAS A BIG BANG FROM THE FRONT OF ENG. OIL STARTED TO SPLATTER OVER THE COWLING & WINDSHIELD, THERE WAS A LOUD GRI - [SDR CA150408022](https://openairdocs.org/sdr/CA150408022.md): Blades · fractured · Mar 31, 2015 · Dhav DHC3 · Turbine Section > (CAN) SINGLE OTTER ON FLOATS. WHILE ON FINAL TO LAND, THE PROP FEATHERED UNCOMMANDED AND AN AUDIBLE LOUD NOISE WAS HEARD. THE ACFT LANDED SAFELY ON THE WATER AND PILOT NOTICED THE ENGINE WAS STILL RUNNING, BUT NO OIL PRESSURE. THE PILOT SHUTDOWN THE ENGINE. - [SDR CA141117006](https://openairdocs.org/sdr/CA141117006.md): Transducer · failed · Nov 11, 2014 · Dhav DHC3 · Propeller Governor > (CAN) TORQUE READING STUCK AT 130 PSI. 2 MINUTES AFTER TAKEOFF, DURING CLIMB, PILOT REPORTED DOUBLE TORQUE GAUGE FAILURE. TORQUE READING WAS STUCK AT 130 PSI. PILOT RETURNED TO BASE AND LANDED SAFELY. TORQUE PRESSURE TRANSDUCER, PN: APTE-548-2250-70D, WAS - [SDR 2014FA0000600](https://openairdocs.org/sdr/2014FA0000600.md): Circuit Breaker · overheated · Sep 20, 2014 · N87KA · Dhav DHC3 · Electrical Power System Wiring > A WEAK BATTERY CAUSED A CIRCUIT BREAKER IN THE CHARGING SYSTEM TO TRIP. AFTER REDUCING ELECTRICAL LOAD, THE PILOT RESET THE CIRCUIT BREAKER WHICH SUBSEQUENTLY TRIPPED A SECOND TIME. THE CASE OF THE CIRCUIT BREAKER GOT HOT ENOUGH DURING THE EVENT TO RELEASE A - [SDR CA140731011](https://openairdocs.org/sdr/CA140731011.md): Spar · cracked · Jul 21, 2014 · Dhav DHC3 · Elevator, Spar/Rib > (CAN) THE PILOT NOTICED A SLIGHT VIBRATION IN CONTROL COLUMM - UPON INSPECTION WE LOOKED AT THE TAIL AND NOTICED THE OUTBOARD RH ELEVATOR BEARING HOUSING TO BE LOOSE - OUTBOARD FORWARD ELEVATOR SPAR WAS MAJORLY CRACKED AROUND BEARING HOUSING ATTACH POINT AND N - [SDR CA140623003](https://openairdocs.org/sdr/CA140623003.md): Fitting · cracked · Jun 21, 2014 · Dhav DHC3 · Wing Miscellaneous Structure > (CAN) VIBRATION IN FLIGHT, FLOWN TO MAINTENANCE. RIGHT HAND/AFT LOWER FLYING WIRE PULL FOUND CRACKED AND FLYING WIRE FOUND LOOSE. WIRE PULL, REPLACED WITH SERVICEABLE UNIT. FLOAT RIGGING ADJUSTED PER P5M 1-3-2 SECTION 2.41.4 LOG ENTRIES COMPLETED. - [SDR CA140618003](https://openairdocs.org/sdr/CA140618003.md): Engine · failed · Jun 16, 2014 · Dhav DHC3 · Engine (Turbine/Turboprop) > (CAN) SHORTLY AFTER TAKEOFF FROM OUR BASE OF OPERATION OUR DHC-3T OTTER ON FLOATS HAD FLAMES SHOOT OUT OF BOTH OF THE EXHAUST STACKS AND THEN THE PROPELLER RAPIDLY SLOWED TO A STOP AND THE AIRCRAFT MADE A SAFE EMERGENCY LANDING ON THE LAKE AND WAS TOWED BACK T - [SDR CA140617002](https://openairdocs.org/sdr/CA140617002.md): Shaft · sheared · Jun 16, 2014 · Dhav DHC3 · Fuel Control/Turbine Engines > (CAN) AS PILOT ATTEMPTED TO TAXI AWAY FROM DOCK HE REALIZED HE COULDN`T GET OFF THE STOP LOCKS, MEANING HE HAD LITTLE OR NO REVERSE. AIRCRAFT REPAIR SERVICE REMOVED THE PLANE FROM THE WATER & INSPECTED THE PILOTS DEFECT. IT WAS THEN WE HAD REALIZED AFTER TRY - [SDR JKGC20140530001](https://openairdocs.org/sdr/JKGC20140530001.md): Trim Tab · destroyed · May 30, 2014 · N3125N · Dhav DHC3 · Elevator Tab Control System > AIRCRAFT 5000 FEET IN TURBULENCE. ELEVATOR TRIM TAB CAME APART CAUSING DAMAGE TO ELEVATOR. - [SDR ERHA20140327004](https://openairdocs.org/sdr/ERHA20140327004.md): Steering Unit · faulty · Mar 27, 2014 · N320KT · Dhav DHC3 · Landing Gear Steering System > TAIL WHEEL STEERING UNIT CAUSES YAW DAMPENER TO TURN ON UN-COMMANDED. TAIL WHEEL STEERING UNIT HAS AN ELEC COIL THAT IS UNPROTECTED BY A DIODE. THE COLLAPSE OF THE ELEC COILS FIELD CAUSES THE SENSITIVE YAW DAMPENER TO TURN ON UN-COMMANDED. - [SDR ERHA20140321003](https://openairdocs.org/sdr/ERHA20140321003.md): Steering Unit · faulty · Mar 21, 2014 · N424K · Dhav DHC3 · Landing Gear Steering System > THE ACFT IS EQUIPPED WITH AN ELEC TAIL WHEEL STEERING UNIT, THAT IS CONTROLLED BY THE PILOT BY THE USE OF A TOGGLE SWITCH. THE OFF ACTIVATION OF THE TAIL WHEEL STEERING SWITCH CAUSED THE INSTALLED AUTOPILOT YAW DAMPENER TO TURN ON UN-COMMANDED. THE ACFT WIRI - [SDR CA140224026](https://openairdocs.org/sdr/CA140224026.md): Duct · cracked · Feb 22, 2014 · Dhav DHC3 · Engine Collector/Tailpipe/Nozzle > (CAN) DURING A NON-SCHEDULED HOT SECTION INSPECTION, THE LARGE EXIT DUCT WAS FOUND CRACKED ALONG THE OUTER SEAM. THE TTSN OF THE LED IS 1073.8 HRS. THIS OPERATOR HAS HAD NUMEROUS PREVIOUS INSTANCES OF CRACKED LEDS. - [SDR CA140214006](https://openairdocs.org/sdr/CA140214006.md): Skin · cracked · Feb 14, 2014 · Dhav DHC3 · Wing, Plate/Skin > (CAN) UPON COMPLETING WING INSPECTION ACCESS HOLES INSTALLATION 5 CORRUGATED SKINS WERE FOUND CRACKED. - [SDR CA140214008](https://openairdocs.org/sdr/CA140214008.md): Spar · corroded · Feb 12, 2014 · Dhav DHC3 · Wing Spar > (CAN) ON REPLACING WING CORRUGATIONS ON THE WINGS THE FRONT SPAR PLATE AT APPROXIMATELY BS 70 WAS FOUND CORRODED. Next page: https://openairdocs.org/model/dehavilland-dhc-3/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 = 'DHC3' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/model/dehavilland-dhc-3/reports --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.