# Service difficulty reports: Pratt & Whitney Canada PW123

A list on [Pratt & Whitney Canada PW123](https://openairdocs.org/engine/pratt-whitney-canada-pw123.md).

Newest first. General aviation reporting is voluntary.

Page 1 of 38 · 1,854 reports

- [SDR 8G9R202509110001](https://openairdocs.org/sdr/8G9R202509110001.md): Pump · making metal · Sep 8, 2025 · N419BT · Cndair CL2156B11215 · Hydraulic Pump (Electric/Engine), Main
  > HYDRAULIC SYSTEM FOUND CONTAMINATED WITH METAL FROM FAILED L/H ENGINE-DRIVEN HYDRAULIC PUMP.
- [SDR 7C7A2023012760010](https://openairdocs.org/sdr/7C7A2023012760010.md): Engine · leaking · Jan 26, 2023 · N151RA · Dhav DHC8311 · Turbine Engine Oil System
  > UNSCHEDULED #1 ENGINE CHANGE DUE TO INTERNAL OIL LEAK
- [SDR 2023FA0000368](https://openairdocs.org/sdr/2023FA0000368.md): Blades · fractured · Nov 28, 2022 · N8QIAT · Engine (Turbine/Turboprop)
  > REGIONAL ONE INC. ENGINE SERIAL NUMBER AR0036 WAS RECEIVED AT STANDARDAERO FOR A POST RENTAL INSPECTION, DURING RECEIVING INSPECTION IT WAS NOTED THAT THE ENGINE HAD A PT BLADE DISTRESS EVENT.
- [SDR CA190801001](https://openairdocs.org/sdr/CA190801001.md): Hose · leaking · Jul 29, 2019 · Dhav DHC8311 · Landing Gear Retraction/Extension System
  > (CAN) ON GEAR RETRACTION CREW REPORTED A BANG FROM NOSE AREA AND THEN THE ISO VALVE LIGHT CAME ON, #2 HYDRAULIC QUANTITY WENT DOWN, MAIN GEAR WENT UP NOSE DID NOT. CREW SELECTED GEAR DOWN NOSE WENT GREEN IMMEDIATELY AND MAINS CAME DOWN, AS PER QRH ALTERNATE EX
- [SDR CA190725002](https://openairdocs.org/sdr/CA190725002.md): Blade · damaged · Jul 18, 2019 · Dhav DHC8315 · Engine (Turbine/Turboprop)
  > (CAN) AIRCRAFT CLIMBED TO INITIAL CRUISE AT FL190 BUT ENCOUNTERED ICING. ICING WAS BEING SHED NORMALLY BUT CREW ELECTED TO CLIMB TO AVOID IT. AS THEY CLIMBED THE AIRCRAFT SHUDDERED AND YAWED. THEY NOTED LH ENGINE ITT INCREASING AND TORQUE DECREASING, OIL PRESS
- [SDR CA190709011](https://openairdocs.org/sdr/CA190709011.md): Capacitor · damaged · Jul 5, 2019 · Dhav DHC8201 · Electrical Power System Wiring
  > (CAN) THE OCCURRENCE HAPPENED ON GROUND DURING MAINTENANCE WITH NO PASSENGERS OR FLIGHT CREW ON BOARD. DESCRIPTION: DURING MAINTENANCE, IT WAS DISCOVERED SMOKE FROM AVIONIC SHELF. CIRCUIT BREAKERS 115/26 VAC XFMR LT AND CIRCUIT BREAKER RNAV 2 (J2) WAS FOUND P
- [SDR CA190708002](https://openairdocs.org/sdr/CA190708002.md): Blade · damaged · Jul 5, 2019 · Turbine Section
  > (CAN) NATO SUPPORT ENGINE WAS RECEIVED FOR INVESTIGATION AND REPAIR DUE TO OPERATOR REPORTED AN IN-FLIGHT SHUTDOWN ON TAKE-OFF AT 600 FT. (TC# 20190708002)
- [SDR CA190703011](https://openairdocs.org/sdr/CA190703011.md): Outflow Valve · malfunctioned · Jun 30, 2019 · Dhav DHC8311 · Pressure Regulator/Outflow Valve
  > (CAN) FLIGHT CREW REPORTED LOSS OF PRESSURIZATION AT 23000`. EMERGENCY DECENT CARRIED OUT. MAINTENANCE REPLACED THE FORWARD OUTFLOW VALVE, PN 103068-14, SN 14-120 AND THE PRESSURE SELECTOR PANEL PN 130522-1, SN 89-407. ALSO REPLACED THE 1R DOOR SEAL. PRESSURE
- [SDR CA190626004](https://openairdocs.org/sdr/CA190626004.md): Actuator · failed · Jun 25, 2019 · Dhav DHC8311 · Landing Gear Retraction/Extension System
  > (CAN) ON APPROACH THE CREW RECEIVED A GEAR UNSAFE INDICATION FOR THE R/H MAIN LANDING GEAR WHEN GEAR SELECTED DOWN. THEY CONDUCTED A MISSED APPROACH AND A SUCCESSFUL ALTERNATE EXTENSION WAS CARRIED OUT. NO EMERGENCY WAS DECLARED, AND THE FLIGHT LANDED WITHOUT
- [SDR CA190628008](https://openairdocs.org/sdr/CA190628008.md): Switch · broken · Jun 21, 2019 · Dhav DHC8202 · Engine Controls
  > (CAN) WE HAD AN ENGINE IFSD ON MSN 522 DUE TO THE RH ENGINE SURGE BETWEEN 80% AND 120% ON FRIDAY 21/JUNE/19. PRECAUTION ENGINE SHUT DOWN WAS PERFORMED AND THE AIRCRAFT WAS SAFELY LANDED WITHOUT ANY INCIDENT: PILOT REPORT: THE ENGINE STARTED SURGING IMMEDIATELY
- [SDR CA190624016](https://openairdocs.org/sdr/CA190624016.md): Fmc · faulted · Jun 20, 2019 · Dhav DHC8311 · Auto Flight System
  > (CAN) DURING LEVEL FLIGHT THE A/C WOULD DESCEND 100FT AND THEN CLIMB BACK UP TO SELECTED ALTITUDE AND LEVEL OFF. ON APPROACH WITH GLIDE-SLOPE CAPTURED THE A/C WOULD BEGIN TO DESCEND 2 DOTS BELOW GLIDE-SLOPE. IN BOTH SITUATIONS THE AUTOPILOT WAS SELECTED ON WIT
- [SDR CA190703016](https://openairdocs.org/sdr/CA190703016.md): Battery · hot · Jun 20, 2019 · Dhav DHC8311 · Battery/Charger System
  > (CAN) CREW REPORTED AUX BATTERY HOT WARNING IN CRUISE. AIRCRAFT DIVERTED TO AN ALTERNATE AIRPORT (YQB) AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED THE AUX BATTERY AND THE AIRCRAFT RETURNED TO SERVICE. REMOVED AUX BATTERY PN 020413-000, SN 090520007EE67.
- [SDR CA190704001](https://openairdocs.org/sdr/CA190704001.md): Engine · surges · Jun 20, 2019 · Dhav DHC8102 · Engine (Turbine/Turboprop)
  > (CAN) PILOT REPORTED THAT #2 ENGINE STARTED SURGING IMMEDIATELY AFTER THE AIRCRAFT WAS AIRBORNE AND WITH THE GEAR SELECTED UP. PILOT INITIALLY HEARD THE CYCLING CHANGE IN ENGINE SOUND, AND FELT THE YAW. #2 ENGINE TORQUE WAS OBSERVED TO BE FLUCTUATING BETWEEN 8
- [SDR CA190605004](https://openairdocs.org/sdr/CA190605004.md): Connector · overheated · Jun 3, 2019 · Dhav DHC8311 · Light System Wiring
  > (CAN) WHILE TROUBLESHOOTING A TRIPPED CABIN OVERHEAD LIGHTING SYSTEM CIRCUIT BREAKER, ELECTRICAL CONNECTORS 3320-J35 AND 3320-P40 WERE FOUND WITH SIGNIFICANT OVERHEAT DAMAGE. CONNECTORS WERE REPLACED AND SYSTEM TESTED SERVICEABLE. PART NUMBERS: 770030-1 (-J35
- [SDR CA190628009](https://openairdocs.org/sdr/CA190628009.md): Engine · deteriorated · Apr 30, 2019 · Dhav DHC8315 · Engine (Turbine/Turboprop)
  > (CAN) AIRCRAFT REPORTED STALL/SURGE AROUND 60-70% DURING ACCELERATION AND DECELERATION. PILOTS REPORTED THE DEFECT ON THE#1 ENGINE, HOWEVER UPON INVESTIGATION THE ENGINEERS REPORTED IT ON BOTH ENGINES. CUSTOMER CHECKED THE BLEED SYSTEM AND CONDUCTED A CAPPED R
- [SDR CA190502018](https://openairdocs.org/sdr/CA190502018.md): Transformer · burned · Apr 28, 2019 · Dhav DHC8311 · AC Generator-Alternator
  > (CAN) 1ST INSTANCE DURING GROUND ENGINE RUN AC GEN CAUTION LIGHT CAME ON - AC GEN REPLACED. 2ND TIME AC GEN CAUTION LIGHT CAME AND AIR TURN BACK WAS INITIATED, SUBSEQUENT TROUBLE SHOOTING 1) FOUND WIRE 2421-10003CBC IN #1 AC CONTACTOR BOX CHAFING AND ARCING TO
- [SDR CA190415012](https://openairdocs.org/sdr/CA190415012.md): Ahrs · failed · Apr 14, 2019 · Dhav DHC8301 · Attitude and Direction Data System
  > (CAN) PILOT REPORT THAT THE #2 EHSI AND EADI FAILED ON CLIMBOUT. MAINTENANCE ACTION: #2 AHRS REPLACED AND TESTED IAW AMM 34-20-00. AIRCRAFT HOURS: 66071:48. CYCLES: 81263. (TC# 20190415012)
- [SDR CA190327004](https://openairdocs.org/sdr/CA190327004.md): Starter Gen · failed · Mar 26, 2019 · Dhav DHC8314 · Starter-Generator
  > (CAN) PILOTS STARTED THE RH ENGINE AND THE DC GENERATOR WOULD NOT COME ONLINE, SO THEY SHUT DOWN THE ENGINE AND WHEN THEY ATTEMPTED TO START THE ENGINE FOR THE SECOND TIME, THE ENGINE WOULD NOT ROTATE AND COULD ONLY GET 21 TO 22 VOLTS ON THE DC PANEL FROM EXTE
- [SDR CA190326001](https://openairdocs.org/sdr/CA190326001.md): Sensor · failed · Mar 25, 2019 · Dhav DHC8311 · Landing Gear Position and Warning
  > (CAN) ATB CARRIED OUT DUE TO WOW CAUTION DEFECT. PROBLEM TRACED TO #2 NLG WOW SENSOR. WOW SENSOR REPLACED, FUNCTION CHECKS CARRIED OUT, A/C RTS. (TC# 20190326001)
- [SDR CA190313001](https://openairdocs.org/sdr/CA190313001.md): Fuel Filter · bypassing · Mar 12, 2019 · Dhav DHC8301 · Engine Fuel Distribution
  > (CAN) IN FLIGHT, THE FLIGHT CREW RECEIVED #2 FUEL FILTER BYPASS WARNING LIGHT. THIS RESULTED IN AN AIRBORNE RETURN TO ORIGINATING POINT. REPLACED THE #2 ENGINE FUEL FILTER IAW AMM 73-10-00-02 & TIB DH8-73-06. AIR/LEAK & VISUAL CHECK OF FILTER INSTALLATION COM
- [SDR CA190313008](https://openairdocs.org/sdr/CA190313008.md): Shaft · sheared · Feb 28, 2019 · Dhav DHC8311 · Turbine Engine Reduction Gear
  > (CAN) 20-FEB-2019 AFTER 50 FLIGHT HOURS CHIP DETECTORS & OIL FILTERS INSPECTED (FAULT ISOLATION-1 FIG 108, SHEET. 3). FOUND SOME BLACK MATERIAL. MATERIAL REMOVED FROM CHIP DETECTOR, RGB OIL FILTER AND OIL SAMPLE SENT TO LABORATORY FOR ANALYSIS. AFTER #2 ENGI
- [SDR CA190227012](https://openairdocs.org/sdr/CA190227012.md): Signal Cond Unit · failed · Feb 23, 2019 · Dhav DHC8301 · Propeller Feathering/Reversing
  > (CAN) 2961 HRS SINCE REPAIR DURING T/O ROLL AS THE LH ENGINE TORQUE WAS RISING TO APPROX 70% THE TORQUE SURGED TO OVER 100% AND PROP RPM DROPPED TO APPOX 600-800 RPM. CAPT SAID IT SOUNDED LIKE THE PROP WAS PARTIALLY FEATHERING.TAKE OFF WAS REJECTED AT OR BELOW
- [SDR CA190218006](https://openairdocs.org/sdr/CA190218006.md): Fcu · failed · Feb 17, 2019 · Dhav DHC8301 · Fuel Control/Turbine Engines
  > (CAN) NO1 ENG ON FINAL AT 20 TQ, RPM DROPPED, ABLE TO GET 1030 RPM WITH COND LEVER AT MAX, OTHER REMAINED AT 1050 GROUND RUNS CARRIED OUT#1 PWR LEVER DOES NOT INCREASE WITH PLA INCREASE. #1 ENGINE LAGS IN PWR. #1 ENGINE IS AT 786 RPM WHEN IT SHOULD BE AT 90
- [SDR CA190206003](https://openairdocs.org/sdr/CA190206003.md): Engine · leaking · Jan 30, 2019 · Turbine Engine Oil System
  > (CAN) ENGINE SERIAL WAS RECEIVED FOR INVESTIGATION AND REPAIR AFTER THE OPERATOR REPORTED INTERNAL OIL LEAKAGE WITHIN THE TURBOMACHINERY WITH VISIBLE OIL LEAKAGE FROM THE `F` FLANGE. (TC# 20190206003)
- [SDR CA190219003](https://openairdocs.org/sdr/CA190219003.md): Oil System · low pressure · Jan 16, 2019 · Dhav DHC8314 · Engine Oil Pressure
  > (CAN) `WHILE THE AIRCRAFT WAS CLIMBING ABOUT 10 MILES NORTH OF CYUL, THE FLIGHT CREW NOTED A LOW OIL PRESSURE INDICATION ON THE RIGHT HAND ENGINE. THE ENGINE PROPELLER WAS FEATHERED AS REQUIRED BY THE APPLICABLE CHECKLIST. THE FLIGHT CREW DECLARED AN EMERGENC
- [SDR CA180618003](https://openairdocs.org/sdr/CA180618003.md): Indicator · malfunctioned · Jun 17, 2018 · Dhav DHC8301 · Airspeed/Mach Indicator
  > (CAN) AT FL200, DURING CRUISE IN ICING CONDITIONS, THE CAPTAIN`S ASI DROPPED FROM 190 KIAS TO 120 KIAS. MAINTENANCE ACTION INITIALLY HAD THE SYSTEM PURGED WITH NO MOISTURE FOUND. THEN THE CAPTAIN`S ASI WAS REPLACED, IAW AMM 34-11-33. A LEAK CHECK WAS CARRIE
- [SDR CA180529014](https://openairdocs.org/sdr/CA180529014.md): Pump · failed · May 28, 2018 · Cndair CL2156B11215 · Fuel Boost Pump
  > (CAN) LT FUEL PUMP HAD LOW OUTPUT PRESSURE AND MADE GRINDING NOISE. (TC# 20180529014)
- [SDR CA180529013](https://openairdocs.org/sdr/CA180529013.md): Bearing · failed · May 25, 2018 · Cndair CL2156B11215 · Air Distribution Fan
  > (CAN) THE PILOTS REPORTED A VERY STRONG BURNING SMELL IN THE FLIGHT DECK WHILE ON APPROACH TO THE LOON RIVER TANKER BASE. NO SMOKE OR OBVIOUS INDICATIONS. UPON INVESTIGATION, THE AIR CONDITIONING BLOWER MOTOR BEARINGS WERE FOUND TO BE WORN, CAUSING PLAY AND
- [SDR CA180423017](https://openairdocs.org/sdr/CA180423017.md): Bracket · cracked · Apr 21, 2018 · Dhav DHC8301 · Nacelle/Pylon Miscellaneous Structure
  > (CAN) IN CLIMB UPON GEAR RETRACTION, FLIGHT CREW RECEIVED A LEFT GEAR UNSAFE RED WARNING LIGHT AND A LT DOOR AMBER CAUTION LIGHT. FLIGHT RETURNED AND LANDED WITHOUT FURTHER INCIDENT AFTER PERFORMING AN ALTERNATE GEAR EXTENSION. FLIGHT CREW VISUAL INSPECTION
- [SDR CA180208004](https://openairdocs.org/sdr/CA180208004.md): Transducer · faulty · Feb 1, 2018 · Dhav DHC8315 · Turbine Engine Oil System
  > (CAN) PILOT CARRIED OUT NR 2 ENG SHUTDOWN DUE TO LOW OIL PRESSURE INDICATION DEFECT, WAS FIXED BY REPLACING THE TRANSDUCER. THE PINS APPEARED TO BE STAINED/CONTAMINATED, SO CONTACTS WERE CLEANED. (TC NR 20180208004).
- [SDR CA180117009](https://openairdocs.org/sdr/CA180117009.md): Skin · cracked · Jan 16, 2018 · Cndair CL2156B11215 · Horizontal Stabilizer Miscellaneous Structure
  > (CAN) SKIN CRACKED FROM APPROXIMATELY WL STATION 261 TO WL STATION 265. AFT OUTBOARD SIDE OF RT FINLET. (TC NR 20180117009).
- [SDR CA180104005](https://openairdocs.org/sdr/CA180104005.md): Spar Cap · cracked · Jan 4, 2018 · Cndair CL2156B11215 · Wing Spar
  > (CAN) LT WING LOWER FORWARD SPAR CAP CRACKED AT LT WS 58. (TC# 20180104005)
- [SDR CA180104006](https://openairdocs.org/sdr/CA180104006.md): Spar Cap · cracked · Jan 4, 2018 · Cndair CL2156B11215 · Wing Spar
  > (CAN) RT WING LOWER FORWARD SPAR CAP CRACKED AT RT WS 58. (TC# 20180104006)
- [SDR HNAA2017092500325](https://openairdocs.org/sdr/HNAA2017092500325.md): Hose · ruptured · Sep 24, 2017 · N335EN · Dhav DHC8311 · Turbine Engine Oil System
  > IN FLIGHT, NR 2 ENGINE OIL PSI DROPPED TO ZERO FOLLOWED BY A NR 2 ENGINE FIRE INDICATION. PERFORMED ENGINE SHUTDOWN AND USED BOTH BOTTLES, FIRE INDICATION EXTINGUISHED AND PERFORMED A SINGLE ENGINE LANDING. REMOVED AND REPLACE THE NR 2 ENGINE IAW WC71-02-02.
- [SDR JJBA20170918007](https://openairdocs.org/sdr/JJBA20170918007.md): Valve · failed · Sep 11, 2017 · N359PH · Dhav DHC8202 · Engine (Turbine/Turboprop)
  > NR 2 ENGINE POWER SURGING IN FLIGHT. DURING FLIGHT THERE WAS A 10-20 PERCENT POWER SPLIT BETWEEN LEVERS. LATER THE ENGINE BEGAN SURGING AGAIN +/-5 PERCENT, THE FUEL FLOW HAD A LARGE SURGE. AN EMERGENCY WAS DECLARED. AFTER TROUBLESHOOTING, IT WAS DETERMINED T
- [SDR HNAA2017051200162](https://openairdocs.org/sdr/HNAA2017051200162.md): Ecu · malfunctioned · May 10, 2017 · N328EN · Dhav DHC8311 · Fuel Controlling System
  > AT FLIGHT LEVEL 9000 FT, NR 1 TORQUE ROLLED BACK 25%. THEN WENT BACK TO NORMAL AND REPEATED. RETURN TO FIELD. REMOVED AND REPLACED THE NR 1 ECU IAW SRT MANUAL, OPS CHECKED GOOD. OK FOR SERVICE.
- [SDR JJBA20170506024](https://openairdocs.org/sdr/JJBA20170506024.md): Oil System · fluctuates · May 6, 2017 · N374PH · Dhav DHC8202 · Turbine Engine Oil System
  > NR 1 OIL PRESSURE FLUCTUATING WITH LOW PRESSURE CAUTION FLICKERING. PERFORMED MTC 7910/01, NO DEFECTS NOTED..
- [SDR HNAA2017031700088](https://openairdocs.org/sdr/HNAA2017031700088.md): Igniter · failed · Mar 17, 2017 · N335EN · Dhav DHC8311 · Ignition Harness (Distribution)
  > NR 1 ENGINE WILL NOT LIGHT OFF. REMOVED AND REPLACED THE NR 1 ENGINE IGNITERS.
- [SDR JJBA20161219017](https://openairdocs.org/sdr/JJBA20161219017.md): Unknown · smoke · Dec 19, 2016 · N369PH · Dhav DHC8202 · Engine (Turbine/Turboprop)
  > TOWER REPORTED SMOKE FROM NR 1 ENGINE. ALL PARAMETERS AND INDICATIONS NORMAL, NO SMOKE REPORTED IN CABIN.
- [SDR HNAA2016120900350](https://openairdocs.org/sdr/HNAA2016120900350.md): Panel · malfunctioned · Dec 9, 2016 · N336EN · Dhav DHC8311 · Engine (Turbine/Turboprop)
  > 1 AND 2 ENGINES HAD 15 PERCENT TORQUE SURGES AT 400 FEET ALTITUDE. REACHED 105 PERCENT TORQUE. REDUCED TORQUE TO 4 PERCENT. SURGE STOPPED. RETURNED TO FIELD. REMOVED AND REPLACED THE RELAY PANEL AT THE CAPTAIN`S SIDE CONSOLE. GROUND RAN AIRCRAFT FOR BETA BAC
- [SDR JJBA20161207012](https://openairdocs.org/sdr/JJBA20161207012.md): Switch · failed · Dec 7, 2016 · N368PH · Dhav DHC8202 · Engine (Turbine/Turboprop)
  > NR 2 ENGINE SURGED AFTER TAKE OFF. TORQUE WENT 70-140 PERCENT. NR 2 ENGINE SURGING FROM 70 TO 140 BACK AND FORTH RIGHT AFTER GEAR UP, BELOW 500FT. FOLLOWED CHECK LIST AND SHUT DOWN THE ENGINE. DECLARED AN EMERGENCY AND RETURNED TO FIELD. R & R THE SWITCH
- [SDR JJBA20160916007](https://openairdocs.org/sdr/JJBA20160916007.md): Pump · inoperative · Sep 16, 2016 · N362PH · Dhav DHC8202 · Engine Fuel Pump
  > NR 1 ENGINE SURGED IN-FLIGHT CAUSING AN OVER TORQUE AND ACFT BECAME UNCONTROLLABLE. CREW THEN SHUTDOWN THE ENGINE. REMOVED MFC AND FUEL PUMP, MFC PN 3244853-19, SN-C31243V, TT-7648.77, TC-9192. UPON TAKEOFF CLIMB, BOTH ENGINES WERE OPERATING TOGETHER NORMAL
- [SDR JJBA20160826018](https://openairdocs.org/sdr/JJBA20160826018.md): Pump · inoperative · Aug 26, 2016 · N359PH · Dhav DHC8202 · Engine Fuel Pump
  > NR 1 PROP TORQUE LAGS P/L INPUTS. FLUCTUATES 50% WITH NO P/L INPUTS. R & R THE NR 1 ENGINE FUEL PUMP AND NR 1 ENGINE MFC IAW PWMM 72-01-40 PERFORMED OPS CHECK IAW AMM 71-00-00, OPS AND LEAK CHECKED GOOD. NO OTHER DEFECTS NOTED AT THIS TIME.
- [SDR JJBA20160816015](https://openairdocs.org/sdr/JJBA20160816015.md): Engine · failed · Aug 16, 2016 · N362PH · Dhav DHC8202 · Engine (Turbine/Turboprop)
  > PILOT REPORTED NR 1 ENGINE LOST OIL PRESSURE THEN THE ENGINE SHUTDOWN. R & R THE NR 1 ENGINE.
- [SDR JJBA20160622011](https://openairdocs.org/sdr/JJBA20160622011.md): Engine · smoke · Jun 22, 2016 · N360PH · Dhav DHC8202 · Engine (Turbine/Turboprop)
  > SMOKE IN THE FLT DECK AFTER ENGINE START. R & R ACM, OPS CHECK FAILED. BORESCOPE INSPECTION-1 AREA WAS MOIST WITH OIL RESIDUE BUT NOT COLLECTIBLE AS A QUANTITY. FOUND A DIFFUSER DUCT BOLT CLOGGING DRAIN, REMOVED BOLT, R & R NL PROBE O-RINGS. NOTE THAT ENGI
- [SDR JJBA20160614007](https://openairdocs.org/sdr/JJBA20160614007.md): Tscu · inoperative · Jun 14, 2016 · N375PH · Dhav DHC8202 · Engine BMEP/Torque Indicating
  > NR 2 ENGINE TORQUE AT 150+ FOR 7-10 SECONDS. R & R NR 2 PROP ASSEMBLY AND R & R NR 2 TSCU. CREW SHUTDOWN THE ENGINE AND RETURNED TO FIELD. PROP ASSEMBLY, PN:806700-1, SN: 970610, TSN: 31647.45, CSN: 42798.
- [SDR CA160310011](https://openairdocs.org/sdr/CA160310011.md): Pump · failed · Mar 9, 2016 · Dhav DHC8314 · Hydraulic Pump (Electric/Engine), Main
  > (CAN) IN CRUISE, CREW NOTICE THAT THE HYDRAULIC LEVEL OF SYSTEM NR 2 WAS 0, THEY DECLARE AN EMERGENCY AND LANDED SAFELY. FURTHER INVESTIGATION, NO SIGN OF HYDRAULIC LEAK HAVE BEEN FOUND. THE AIRCRAFT NR 2 HYDRAULIC SYSTEM WAS SERVICED, SYSTEM WAS TESTED ON THE
- [SDR CA160307004](https://openairdocs.org/sdr/CA160307004.md): Housing · cracked · Mar 5, 2016 · Dhav DHC8301 · Cabin Cooling System
  > (CAN) WHILE REPLACING THE ACM FOR AN UNRELATED ISSUE, IT WAS FOUND TO HAVE A CRACK INTERNALLY IN THE HOUSING CAUSING AN OIL LEAK WITH SMOKE IN THE CABIN.
- [SDR CA160302009](https://openairdocs.org/sdr/CA160302009.md): Bearing · failed · Mar 1, 2016 · Cndair CL2151A10 · Ailerons
  > (CAN) WHILE CONDUCTING THE 72 MONTH INSPECTION (CHECK) OF THIS AIRCRAFT, MAINTENANCE HAS DISCOVERED THAT THE UPPER CENTER AILERON BEARING IN THE AILERON CENTER ATTACHMENT FITTING WAS FAILED. THE BEARING HAS COME APART WITH THE BALL BEARINGS FALLING OUT. REFERE
- [SDR CA160301020](https://openairdocs.org/sdr/CA160301020.md): Windshield · burned · Feb 26, 2016 · Dhav DHC8301 · Flight Compartment Windows
  > (CAN) ON APPROACH THE CREW EXPERIENCED ARCING AND SMOKE FROM THE FO WINDSHIELD AT THE LOCATION OF THE TERMINAL LUGS. THERE WERE NO ASSOCIATED CAUTION LIGHTS. MAINTENANCE FOUND EVIDENCE OF ARCING AT THE TERMINAL LUG LOCATION. ALL TERMINALS WERE FOUND TIGHT AND

Next page: https://openairdocs.org/engine/pratt-whitney-canada-pw123/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 engine_model_key = 'PW123'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/engine/pratt-whitney-canada-pw123/reports

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