# Service difficulty reports: Pratt & Whitney Canada PW150A

A list on [Pratt & Whitney Canada PW150A](https://openairdocs.org/engine/pratt-whitney-canada-pw150a.md).

Newest first. General aviation reporting is voluntary.

Page 1 of 62 · 3,094 reports

- [SDR 2023F00050](https://openairdocs.org/sdr/2023F00050.md): Wheel · degraded · Feb 10, 2023 · N881WM · Dhav DHC8* · Wheel/Ski/Float
  > NUMBER 1 MAIN WHEEL ASSY. OBSERVED WOBBLING DURING TAXI AFTER LANDING. FOUND OUTER BEARING HAD DISINTEGRATED.
- [SDR 2023FA0000078](https://openairdocs.org/sdr/2023FA0000078.md): Wire Splice · failed · Feb 8, 2023 · N881WM · Bombdr DHC8400 · Doors
  > DURING A SCHEDULED FLIGHT FROM PHL TO YTZ, FUSELAGE DOOR WARNING LIGHT ILLUMINATED UPON REACHING FL240. DOORS PAGE SHOWED IT TO BE THE AFT BAGGAGE DOOR. PRESSURIZATION REMAINED NORMAL. AIRCRAFT RETURNED TO PHL.
- [SDR WMAA202301120028](https://openairdocs.org/sdr/WMAA202301120028.md): Warning Message · illuminated · Jan 10, 2023 · N881WM · Bombdr DHC8400 · Door Warning System
  > DURING FLIGHT FROM PHL TO YTZ, FUSELAGE DOOR WARNING LIGHT ILLUMINATED UPON REACHING FL240. DOORS PAGE SHOWED IT TO BE (AFT) BAGGAGE DOOR. PRESSURIZATION REMAINED NORMAL. AIRCRAFT TURNED AROUND AND RETURNED TO PHL. INTERMITTENT FROM STEADY RED TO GREEN AGAIN
- [SDR 202301090025](https://openairdocs.org/sdr/202301090025.md): Bearing · disintegrated · Jan 6, 2023 · Bombdr DHC8402 · Wheel/Ski/Float
  > NUMBER 1 MAIN WHEEL ASSY. OBSERVED WOBBLING DURING TAXI AFTER LANDING. FOUND OUTER BEARING HAD DISINTEGRATED.
- [SDR WMAA202212230001](https://openairdocs.org/sdr/WMAA202212230001.md): Warning Message · illuminated · Dec 20, 2022 · N881WM · Bombdr DHC8400 · Cargo/Baggage Doors
  > DURING FLIGHT FROM PHL TO BOS, FUSELAGE DOOR WARNING SYSTEM ILLUMINATED. MFD DOORS PAGE SHOWED AFT BAGGAGE DOOR AS NOT FULLY STOWED. PRESSURIZATION CHECKED NORMAL IAW PILOT'S QRH AND MANUALS. FLIGHT TURNED AROUND AND RETURNED TO PHL.
- [SDR QXEA2021122900568](https://openairdocs.org/sdr/QXEA2021122900568.md): None · none · Dec 29, 2021 · N450QX · Bombdr DHC8402 · Power Indicating System
  > DURING CLIMB PASSING 13000 IN MCL THE #TRQ BUG MOMENTARILY DROPPED TO APPROX. 45% THEN IMMEDIATELY RETURNED TO 91% NO POWER CHANGE NOTED AND EVENT MARKER PRESSED. INSPECTED AND CLEANED FADEC AND TORQUE SENSORS CONNECTORS. NO CONTAMINATION WAS FOUND. PERFORME
- [SDR QXEA2021121000547](https://openairdocs.org/sdr/QXEA2021121000547.md): O-Ring · wrong part · Dec 9, 2021 · N450QX · Bombdr DHC8402 · Engine (Turbine/Turboprop)
  > CLIMBING OUT, THE #1 OIL PRESSURE STARTED FLUCTUATING. AS TIME PASSED IT OCCASIONALLY DIPPED INTO THE RED AND THE #1 ENGINE OIL PRESS WARNING LIGHT BEGAN TO FLICKER. SHUTDOWN THE ENGINE, RAN THE CHECKLISTS AND RETURNED TO THE FIELD. ACCOMPLISHED OVERWEIGHT LAN
- [SDR QXEA2021080600387](https://openairdocs.org/sdr/QXEA2021080600387.md): Warning Message · false activation · Aug 4, 2021 · N450QX · Bombdr DHC8402 · Engine Oil Pressure
  > ON TAKEOFF ROLL #2 ENGINE PSI HIT 73 PSI STAYED AT 73 PSI TILL POWER WAS TAKEN OUT. ABORTED TAKEOFF. REMOVED FROM SERVICE. INTERROGATED CDS FOR ANY EXCEEDANCE ON THE #2 ENG. NO EXCEEDANCES NOTED. IAW Q400 AMM TASK 45-00-946-001 DETERMINED TO BE IN A TRANSITORY
- [SDR QXEA2021072000366](https://openairdocs.org/sdr/QXEA2021072000366.md): Warning Message · illuminated · Jul 18, 2021 · N400QX · Bombdr DHC8402 · Engine Indicating System
  > CLIMBING THROUGH 17,000 NOTICED POWERPLANT MESSAGE ON ED. RETURNED TO FIELD. LANDING UNEVENTFUL. REMOVED FROM SERVICE. INTERROGATED CDS, FOUND FAULT CODES 120,122,134 CHA #2 ENG. PERFORMED PEC FAULT CLEAR REF Q400 AMM TASK 61-20-36-070-801. NO RECENT RELATED H
- [SDR QXEA2021062400321](https://openairdocs.org/sdr/QXEA2021062400321.md): Sensor · malfunctioned · Jun 23, 2021 · N437QX · Bombdr DHC8402 · Engine Indicating System
  > UPON REACHING CRUISE @FL250 ENG #2 OIL PSI INDICATION OBSERVED AS WHITE DASHES. SECONDS LATER INDICATION RETURNED BUT SHOWED @ RED 0. IT FLICKERS BETWEEN WHITE DASHES AND ZERO. EVENTUALLY IT STAYED INDICATION W / FLUCTUATING VALUES. NO CAUTIONS/WARNINGS OR ANN
- [SDR QXEA2021031900122](https://openairdocs.org/sdr/QXEA2021031900122.md): Connector · loose · Mar 18, 2021 · N450QX · Bombdr DHC8402 · Engine Fuel System Wiring
  > ON CLIMB OUT 10 MIN AFTER DEPARTURE AT APPROXIMATELY 20,000 FT. NOTICED A MOMENTARY REDUCTION IN THE #2 ENGINE TORQUE TO ABOUT 50%. MONITORED SYSTEM, NO OTHER ANOMALIES NOTED. REMOVED FROM SERVICE. PERFORMED GVI OF #2 FADEC. ON TACTILE INSP OF CANNON PLUG P50+
- [SDR QXEA2021022200069](https://openairdocs.org/sdr/QXEA2021022200069.md): Fadec · fluctuates · Feb 21, 2021 · N450QX · Bombdr DHC8402 · Engine (Turbine/Turboprop)
  > ON TAKEOFF WE NOTICED A FLUCTUATION OF TRQ 1% AND 2% ABOVE AND BELOW TRQ RATING. NH AND PROP RPM FLUCTUATION ALSO TOOK PLACE. AFTER SETTING CLIMB POWER, EVERYTHING SEEMED TO STABILIZE. REMOVED FROM SERVICE. NR 2 ENG FMU & FADEC WERE R & R AS PRECAUTIONARY
- [SDR QXEA2021012200022](https://openairdocs.org/sdr/QXEA2021012200022.md): Bleed Valve · malfunctioned · Jan 22, 2021 · N444QX · Bombdr DHC8402 · Compressor Bleed Valve
  > AT 1500 AGI ON CLIMBOUT NR 2 ENGINE FADEC CAUTION ILLUMINATED ALONG WITH POWERPLANT MESSAGE AT BOTTOM OF ED. EMERGENCY DECLARED. RETURNED TO FIELD, LANDING UNEVENTFUL. REMOVED FROM SERVICE. INTERROGATED CDS FOUND FAULT CODE 912 BOTH A & B CHANNELS NR 2 ENG
- [SDR QXEA2021012000019](https://openairdocs.org/sdr/QXEA2021012000019.md): Oil System · low pressure · Jan 18, 2021 · N403QX · Bombdr DHC8402 · Engine Oil Pressure
  > AROUND 13,000 NOTICED NR 2 ENGINE OIL PRESS WARNING LIGHT ILLUMINATED + OIL PRESS FLUCTUATING RAPIDLY. WENT FROM NORMAL GREEN ARC TO RED MIN LINE. OIL TEMPT WAS NORMAL ONLY CAUTION LIGHT WAS NR 2 ENGINE OIL PRESS WARN 65PSI-31PSI. RETURNED TO FIELD. LANDI
- [SDR QXEA2020112500328](https://openairdocs.org/sdr/QXEA2020112500328.md): Wire Harness · malfunctioned · Nov 23, 2020 · N438QX · Bombdr DHC8402 · Engine Fuel System Wiring
  > JUST STARTED ADDING POWER FOR TAKEOFF-LOW POWER LOW AIRSPEED AND RECEIVED A POWERPLANT MESSAGE. ABORTED TAKEOFF, RETURNED TO GATE. REMOVED FROM SERVICE. INTERROGATED CDS AND FOUND CURRENT FAULTS 719A AND 719B FAULT CODES (3540). CLEARED FAULT ON NR 1 ENGI
- [SDR QXEA2020110200307](https://openairdocs.org/sdr/QXEA2020110200307.md): Propeller · vibration · Oct 29, 2020 · N404QX · Bombdr DHC8402 · Propeller Assembly
  > VIBRATIONS WERE FELT DURING CLIMB OUT. THEY WERE MORE NOTICEABLE WHEN CONDITION LEVERS WERE AT 1020 AND 900. VIBRATIONS WERE LESS ONCE CONDITION LEVERS WERE SET AT 850 AND TORQUE WAS BELOW 55%, THEN DURING DESCENT VIBRATIONS INCREASED AGAIN WHEN TORQUE WAS A
- [SDR SROM020200718201](https://openairdocs.org/sdr/SROM020200718201.md): I/O Module · malfunctioned · Jul 16, 2020 · N792CP · Bombdr DHC8402 · Overheat Detection
  > RIGHT FUEL TANK TEMP INDICATED +99°C WITH FIRE BELL. REMOVED AND REPLACED THE RT FUEL HEATER THERMAL ACTUATOR INAW DHC-8-400 AMM 73-11-05 (FOR THE FUEL OVERHEAT). SWAPPED INPUT/OUTPUT MODULE (IOM) POSITIONS IAW Q400 AMM 31-41-11 (FOR TROUBLE SHOOTING THE F
- [SDR QXEA2020020300078](https://openairdocs.org/sdr/QXEA2020020300078.md): Governor · inoperative · Feb 2, 2020 · N452QX · Bombdr DHC8402 · Propeller Controlling System
  > #1 PROPELLER DOES NOT APPEAR FULLY FEATHERED AFTER SHUTDOWN. REMOVED FROM SERVICE. REMOVED AND REPLACED #1 PROP OSG IAW Q400 MM 61-20-26-000-801 AND 61-20-26-400-801. OPS CHECK GOOD. C/W PROP FEATHER CHECK IAW Q400 MM 71-00-00-868-819. OPS CHECK GOOD. AIRCR
- [SDR QXEA2020012200040](https://openairdocs.org/sdr/QXEA2020012200040.md): Blade · damaged · Jan 20, 2020 · N452QX · Bombdr DHC8402 · Propeller Blade Section
  > SUSPECT #1 PROP #4 BLADE WAS SHOWED SIGNS OF SPARKING ON APPROACH. REMOVED FROM SERVICE. FOUND #4 BLADE OF #1 PROP HAD DAMAGED DEICE BOOT. R+R #4 BLADE. AIRCRAFT RETURNED TO SERVICE.
- [SDR QXEA2019122000469](https://openairdocs.org/sdr/QXEA2019122000469.md): Adjuster · out of adjust · Dec 19, 2019 · N404QX · Bombdr DHC8402 · Engine Oil Pressure
  > DURING CLIMB AND ENROUTE #2 OIL PRESSURE INDICATED 72 (YELLOW) FOR A COUPLE SECONDS AND THEN DROPPED TO 70. THIS OCCURRED SEVERAL TIME A MINUTE. EVENT MARKER PRESSED ONCE. RETURNED TO FIELD. LANDING UNEVENTFUL. REMOVED FROM SERVICE. ADJUSTED #2 ENGINE OIL PRES
- [SDR QXEA2019122300472](https://openairdocs.org/sdr/QXEA2019122300472.md): Adjuster · out of adjust · Dec 19, 2019 · N404QX · Bombdr DHC8402 · Engine Oil Pressure
  > DURING CLIMB AND EN ROUTE #2 OIL PRESSURE INDICATED 72 (YELLOW) FOR A COUPLE SECONDS AND THEN DROPPED TO 70. THIS OCCURRED SEVERAL TIME A MINUTE. EVENT MARKER PRESSED ONCE. RETURNED TO FIELD. LANDING UNEVENTFUL. REMOVED FROM SERVICE. ADJUSTED #2 ENGINE OIL PRE
- [SDR QXEA2019121600464](https://openairdocs.org/sdr/QXEA2019121600464.md): Switch · detached · Dec 14, 2019 · N442QX · Bombdr DHC8402 · Propeller Controlling System
  > AUTO FEATHER SWITCH POPPED OUT ON T/O. REMOVED FROM SERVICE. RESEATED AUTO FEATHER SW & PERFORMED OPERATION TEST OF THE PROPELLER AUTO FEATHER AND UPTREAM SYST PER Q400 AMM TASK 61-20-00-710-810-OPS CHECK GOOD.NO OTHER DEFECT NOTED. AIRCRAFT RETURNED TO SERVIC
- [SDR QXEA2019120900454](https://openairdocs.org/sdr/QXEA2019120900454.md): Governor · malfunctioned · Dec 9, 2019 · N433QX · Bombdr DHC8402 · Turbine Governor
  > SEVERAL MINUTES AFTER START CHECKLIST COMPLETED, PROP RPM ON #2 ENGINE INCREASED TO 980 THEN SETTLED AT 950. AFTER 1 MINUTE PLACED THE #2 ENGINE INTO THE START/FEATHER. REMOVED FROM SERVICE. PERFORMED OPERATIONAL TEST OF THE OVERSPEED GOVERNOR IAW Q400 AMM 61-
- [SDR QXEA2019110800410](https://openairdocs.org/sdr/QXEA2019110800410.md): Fadec · malfunctioned · Nov 8, 2019 · N405QX · Bombdr DHC8402 · Fuel Controlling System
  > FADEC 1/DU DISPLAYED ON ED AFTER ENGINE SHUTDOWN. A/F TEST CAME BACK WITH ABORT MESSAGE. REMOVED FROM SERVICE. DISPLAY REPLACED, NO HELP. FADEC #1 REPLACED NO HELP. FADEC B ENG 1 CB REPLACED AND #1 IOP REPLACED. OPS CHECK GOOD. FAULTS & MESSAGES CLEARED AND DI
- [SDR CA190808008](https://openairdocs.org/sdr/CA190808008.md): Trim Switch · worn · Aug 6, 2019 · Bombdr DHC8400 · Rudder Tab Control System
  > (CAN) AIRCRAFT EXPERIENCED AN ATB DUE TO UNCOMMANDED RUDDER TRIM MOVEMENT AT CLIMB PHASE. THE RUDDER TRIM ACTUATOR MOVED TO LEFT SIDE IN SPITE OF THE RUDDER TRIM SWITCH WAS IN NEUTRAL POSITION. FLIGHT CREWS PERFORMED AILERON RUDDER RUNAWAY IN QRH, BUT THE RUDD
- [SDR CA190807010](https://openairdocs.org/sdr/CA190807010.md): Cable · broken · Aug 4, 2019 · Bombdr DHC8400 · Landing Gear Door Retract Section
  > (CAN) WHILE ATTEMPTING TO OPEN THE MLG DOOR TO CONDUCT A SERVICING TASK, MTC NOTED THAT THE GEAR DOOR DID NOT OPEN WHEN THE ALT RELEASE WAS PULL, THEY FURTHER LOOK INTO THE LH NACELLE AND NOTED A CABLE HANGING FROM THE NACELLE. THE LEVER ASSEMBLY HAD BROKE ON
- [SDR CA190822001](https://openairdocs.org/sdr/CA190822001.md): Flow Divider · malfunctioned · Aug 4, 2019 · Bombdr DHC8402 · Fuel Divider
  > (CAN) THE CUSTOMER REPORTED THAT THE CREW ABORTED THE TAKE-OFF TWICE BECAUSE THE AUTO FEATHER UNIT FAILED TO FUNCTION. GROUND RUNS CONFIRMED THAT #2 ENGINE DID NOT INCREASE ABOVE 50% TORQUE. THE FMU, WF TRANSMITTER AND FMV WERE REPLACED AND THE AIRCRAFT HAS RE
- [SDR CA190807001](https://openairdocs.org/sdr/CA190807001.md): Bolt · missing · Aug 3, 2019 · Bombdr DHC8400 · Propeller Feathering/Reversing
  > (CAN) PILOT REJECTED T.O DUE TO #1 LOW OIL PRESSURE INDICATION. MAINTENANCE FOUND OIL LEAK FORM THE #1 ENGINE, SPECIFICALLY FROM THE FEATHERING PUMP. OIL PUMP COVER WAS MISSING A BOLT CAUSE THE OIL LEAK. (TC# 20190807001)
- [SDR CA190802012](https://openairdocs.org/sdr/CA190802012.md): Pressure Switch · failed · Aug 2, 2019 · Bombdr DHC8400 · Trailing Edge Flap Control System
  > (CAN) DEFECT: ON FINAL APPROACH FLAP WAS SELECTED TO 10 DEGREE. THE FLAP POWER CAUTION LIGHT CAME ON, MISSED APPROACH WAS EXCECUTED BUT FLAPS STAYED AT 5 DEGREE, FLAPS WERE OVERSPEED 2.5 KNOTS, QRA WAS EXECUTED WITH THE CB RESET. UPON RESET THE CAUTION LIGHT E
- [SDR CA190807014](https://openairdocs.org/sdr/CA190807014.md): Warning Message · illuminated · Aug 1, 2019 · Bombdr DHC8400 · Trailing Edge Flap Control System
  > (CAN) ON 23-JUL-2019, THE FLIGHT CREW OBSERVED A FLAP POWER CAUTION LIGHT ON APPROACH. THEY DIVERTED TO THE ALTERNATE AIRPORT AND LANDED WITHOUT INCIDENT THERE. THE MAINTENANCE CREW CARRIED OUT AN INSPECTION AND RESET THE CIRCUIT BREAKER. THE AIRCRAFT RETURN
- [SDR CA190731021](https://openairdocs.org/sdr/CA190731021.md): Oil Cooler · malfunctioned · Jul 31, 2019 · Bombdr DHC8400 · Engine Oil Cooler
  > (CAN) MOC REPORT: FLIGHT QF 2086 #1 ENGINE HIGH OIL TEMP. ENGINE POWER REDUCED AS PER AFM. PAN DECLARED AND A/C RETURN BACK TO DEPARTURE AIRPORT. (TC# 20190731021)
- [SDR CA190801005](https://openairdocs.org/sdr/CA190801005.md): Pump · damaged · Jul 30, 2019 · Bombdr DHC8400 · Aircraft Fuel Distribution System
  > (CAN) LEFT HAND ENGINE FUEL LOW PRESSURE CAUTION LIGHT ILLUMINATED AFTER TAKEOFF. CREW ACTIONED QRH AND LIGHT EXTINGUISHED WITH FUEL BOOST PUMP ON. MAINTENANCE TROUBLESHOOTING DISCOVERED A BROKEN CHECK VALVE IN THE LH PRIMARY FUEL EJECTOR PUMP. THE CHECK VALVE
- [SDR CA190731017](https://openairdocs.org/sdr/CA190731017.md): Adc · failed · Jul 30, 2019 · Bombdr DHC8400 · Air Data Computer
  > (CAN) IN CRUISE, ALT FAIL, IAS FAIL ON PFD #1. ASSOCIATED CAUTIONS FOR PITCH TRIM, ELEVATOR FEEL, PROP DEICE, SPOILER OB, ROLL SPLR OB HYD, RUD CNTRL. CB`S A7/A4 (LEFT UPPER) RELEASED. MAINTENANCE REPLACED THE #1 AIR DATA UNIT, COMPLETED THE OPS CHECKS AND THE
- [SDR CA190731015](https://openairdocs.org/sdr/CA190731015.md): Flow Divider · malfunctioned · Jul 29, 2019 · Bombdr DHC8400 · Fuel Divider
  > (CAN) REJECTED TAKEOFF DUE TO #1 ENGINE NOT GOING TO FULL POWER (MAX 50%). CREW RETURNED TO THE GATE DEPLANED PASSENGERS. RDC NP LDG SWITCH RESET AND AIRCRAFT POWER DOWN/POWER UP COMPLETED. ANOTHER RUN SAME RESULT. MAINTENANCE REPLACED THE #1 FLOW DIVIDER, EN
- [SDR CA190807009](https://openairdocs.org/sdr/CA190807009.md): Controller · failed · Jul 23, 2019 · Bombdr DHC8400 · Cabin Pressure Controller
  > (CAN) DURING CRUISE A/C STARTED TO DE-PRESSURIZE. CAPTAIN RECOVERED THE CONTROL IN MANUAL AND DESCENDED TO FL 200. FLIGHT CONTINUED TO DESTINATION. A/C PLACED ON MEL FOR MANUAL PRESSURIZATION. CPC WAS REPLACED ON 23-JUL-2019. NO FURTHER PROBLEM REPORTED BY OPE
- [SDR CA190726023](https://openairdocs.org/sdr/CA190726023.md): Gearbox · making metal · Jul 23, 2019 · Bombdr DHC8400 · Turbine Engine Reduction Gear
  > (CAN) #1 ENGINE FAULT CODE 939 (RGB CHIPS DETECTED) WAS RECEIVED THROUGH THE FAST SYSTEM. MATERIAL WAS ROUTED TO THE LAB AND WAS DETERMINED TO BE M50. FAULT CODE REPEATED THE FOLLOWING DAY AND THE ENGINE WAS REMOVED FROM SERVICE. RGB WILL BE ROUTED TO THE MANU
- [SDR CA190722009](https://openairdocs.org/sdr/CA190722009.md): Power Unit · failed · Jul 18, 2019 · Bombdr DHC8401 · Trailing Edge Flap Control System
  > (CAN) FLAP POWER CAUTION LIGHT ILLUMINATED ON APPROACH, FLAPS STUCK A 5 DEGREES. PERFORMED CHECK LIST THEN FLAPS STUCK AT ZERO. DECLARED EMERGENCY AND PERFORMED ZERO FLAP LANDING. REPORTED FAULT CODES HYDRAULIC PRESSURE LOSS. FPU REPLACED AND AIRCRAFT RTS. PN
- [SDR CA190712006](https://openairdocs.org/sdr/CA190712006.md): Strap · cracked · Jul 11, 2019 · Bombdr DHC8400 · Trailing Edge Flaps
  > (CAN) A CRACK INDICATION WAS FOUND DURING SCHEDULED INSPECTION. CRACK INDICATION WAS REMOVED BY OPENING THE HOLE TO FIRST OVERSIZED. (TC# 20190712006)
- [SDR CA190726004](https://openairdocs.org/sdr/CA190726004.md): Flow Divider · malfunctioned · Jul 11, 2019 · Fuel Divider
  > (CAN) THE PILOT ABORTED THE TAKE-OFF DUE TO RIGHT HAND ENGINE UNABLE TO ACHIEVE TAKE OFF POWER. THE ENGINE STAGNATES AT 40% TORQUE WITH POWER LEVER ANGLE (PLA) AT TAKE-OFF POWER. (TC# 20190726004)
- [SDR CA190730010](https://openairdocs.org/sdr/CA190730010.md): Oil System · overtemp · Jul 8, 2019 · Dhav DHC8102 · Turbine Engine Oil System
  > (CAN) DURING THE FLIGHT, THE FLIGHT CREW NOTICED A HIGH OIL TEMPERATURE ON THE NUMBER 2 ENGINE. AS THE TEMPERATURE CONTINUED TO INCREASE, THE FLIGHT CREW ELECTED TO RETURN TO THE AIRPORT OF ORIGIN. SINCE THE HIGH OIL TEMPERATURE WAS TIME LIMITED, THE FLIGHT CR
- [SDR CA190709016](https://openairdocs.org/sdr/CA190709016.md): Cover · cracked · Jul 8, 2019 · Bombdr DHC8400 · Turbine Engine Accessory Drive
  > (CAN) DURING OPERATION AN OIL LEAK WAS NOTICED ON THE #2 NACELLE, FURTHER INVESTIGATION FOUND THE ACCESSORY GEARBOX MOUNTING FLANGE HAD SOME LOOSE ATTACHING NUTS UNDER THE STARTER, UPON FURTHER INVESTIGATION IT WAS FOUND THAT THE FLANGE BY THE LOOSE NUTS WERE
- [SDR CA190724008](https://openairdocs.org/sdr/CA190724008.md): Carbon Seal · leaking · Jul 7, 2019 · Bombdr DHC8400 · Turbine Engine Oil System
  > (CAN) DURING FLIGHT, SMOKE BECAME EVIDENT IN THE CABIN/COCKPIT. PAN DECLARED, AND THE AIRCRAFT LANDED AT THE DESTINATION AIRPORT PER QUICK REFERENCE HANDBOOK PROCEDURES. ON TROUBLESHOOTING EGR CARRIED OUT, OIL WETNESS FOUND ON COWL POST RUN AND SMOKE IN CABIN
- [SDR CA190705002](https://openairdocs.org/sdr/CA190705002.md): Pressure Switch · failed · Jul 4, 2019 · Bombdr DHC8400 · Trailing Edge Flap Control System
  > (CAN) MSN 4438 THAT HAD AN ATB DUE TO FLAPS STUCK AT 5 DEGREES. DURING THE FLAP RETRACTION THE FLAPS GOT STUCK AT 5 DEGREES AND THE FLAP POWER CAUTION LIGHT ILLUMINATED. FOR THE FLAP POWER CAUTION LIGHT, BLEEDING OF THE HYDRAULIC SYSTEM WAS DONE. SEVERAL FLAP
- [SDR CA190628016](https://openairdocs.org/sdr/CA190628016.md): Bypass Valve · malfunctioned · Jun 25, 2019 · Bombdr DHC8400 · Engine Oil Cooler
  > (CAN) OIL TEMP IN THE CRUSE ROSE TO 110. ATB OF QF2478. NORMAL LANDING, NIL EMERGENCY REPORTED. AMM 05-11-00 FOLLOWED, OIL SERVICE C/OUT, #1 ACOC BYPASS VALVE REPLACED, AIRCRAFT RTS (TC# 20190628016)
- [SDR CA190628012](https://openairdocs.org/sdr/CA190628012.md): Flow Divider · malfunctioned · Jun 21, 2019 · Bombdr DHC8400 · Fuel Divider
  > (CAN) PILOT REPORT REJECTED T.O. COULD ONLY ACHIEVE 49% TORQUE. ENGINE DID NOT ACHIEVE THE REQUIRED TORQUE CREW DID NOT BEGAN THE TAKE OFF ROLL. MAINTENANCE REPLACE THE FMU BUT HAD THE SAME PROBLEM LATER THE SAME DAY. FLOW DIVIDER WAS REPLACED. (TC# 20190628
- [SDR CA190625007](https://openairdocs.org/sdr/CA190625007.md): Transducer · failed · Jun 20, 2019 · Bombdr DHC8400 · Propeller Controlling System
  > (CAN) DURING CLIMB AT 3000FT CAPTAIN NOTICED #1 ENG SURGING THEN THE PEC CAUTION ILLUMINATED. SHORTLY AFTERWARDS THE PROP RPM WENT FORM 900 TO 1060 UN-COMMANDED WHICH WAS HELD BY THE OVERSPEED GOVERNOR. THE CREW THEN ACTIONED THE QRH AND SHUT DOWN THE ENGINE.
- [SDR CA190704002](https://openairdocs.org/sdr/CA190704002.md): Sensor · failed · Jun 20, 2019 · Bombdr DHC8400 · Propeller Controlling System
  > (CAN) DURING CLIMB CREW SHUTDOWN THE ENGINE DUE TO OVERSPEED CONDITION AND RETURNED BACK TO ORIGIN. ON TROUBLESHOOTING IT WAS CONFIRMED THAT BFT (BETA FEEDBACK TRANSDUCER) WAS FAULT AND CAUSED OVERSPEED CONDITION WHICH FADEC CONTROLLED. SENSOR REPLACED AND AIR
- [SDR CA190621013](https://openairdocs.org/sdr/CA190621013.md): Pump · malfunctioned · Jun 18, 2019 · Bombdr DHC8400 · Hydraulic Pump (Electric/Engine), Main
  > (CAN) ON 18-JUNE-2019, DURING CRUISE, THE #1 HYD ISO VLV CAUTION LIGHT ILLUMINATED. THE HYD QUANTITY IN #1 HYD SYSTEM WAS OBSERVED AT 15% WHICH SUBSEQUENTLY DROPPED TO 0 % FOLLOWED BY THE #1 ENG HYD PUMP CAUTION LIGHT AND THE #1 HYD VALVE CLOSED ADVISORY LIGHT
- [SDR CA190619008](https://openairdocs.org/sdr/CA190619008.md): Cap · sheared · Jun 18, 2019 · Bombdr DHC8400 · Propeller Hub Section
  > (CAN) WHILE TORQUING PROP CAP ATTACHMENT SCREWS ONE SHEARED OFF BEFORE IT MET THE REQUIRED TORQUE. PICTURES ATTACHED (TC# 20190619008)
- [SDR CA190617004](https://openairdocs.org/sdr/CA190617004.md): Pulley · seized · Jun 17, 2019 · Bombdr DHC8400 · Aileron Control System
  > (CAN) DURING CLIMB OUT CREW REPORTED STIFF ROLL CONTROL. FLIGHT RETURNED TO DEPARTURE AIRPORT AND LANDED WITHOUT INCIDENT. MAINTENANCE TROUBLESHOOTING FOUND TWO BINDING PULLEYS IN THE RH AILERON CABLE CIRCUIT. PULLEYS REPLACED AND THE AIRCRAFT RETURNED TO SERV

Next page: https://openairdocs.org/engine/pratt-whitney-canada-pw150a/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 = 'PW150A'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/engine/pratt-whitney-canada-pw150a/reports

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