# Service difficulty reports: Pratt & Whitney R-2000-7M2

A list on [Pratt & Whitney R-2000-7M2](https://openairdocs.org/engine/pratt-whitney-r-2000-7m2.md).

Newest first. General aviation reporting is voluntary.

- [SDR A8OA201301160002](https://openairdocs.org/sdr/A8OA201301160002.md): Valve · inoperative · Jan 16, 2013 · N238PT · Dhav DHC4A · Engine (Turbine/Turboprop)
  > 20 MINUTES IN FLIGHT, IN A CLIMB RT ENGINE EXPERIENCED HIGH OIL TEMP WARNING. CREW INITIATED RT ENGINE SHUTDOWN PROCEDURES. R & R RT ENGINE THERMOSTATIC VALVE IAW ENGINE MM 79-20-03. PERFORMED GROUND RUN, ALL INDICATIONS NORMAL. NO LEAKS NOTED. PN, OFF 3036
- [SDR DALA13002271816](https://openairdocs.org/sdr/DALA13002271816.md): Battery Pack · discharged · Jan 12, 2013 · N840MH · Boeing 767432ER · Emergency Lighting
  > LOWER LOBE CREW REST EMERGENCY LIGHTS ARE INOPERATIVE. REPLACED BATTERY PACK, OPS OK.
- [SDR CA110719005](https://openairdocs.org/sdr/CA110719005.md): Engine · power loss · Jul 14, 2011 · Doug C54GDC · Engine (Turbine/Turboprop)
  > (CAN) NR 2 ENGINE WAS SHUTDOWN AND PROPELLER FEATHERED DUE TO ROUGH RUNNING. THERE IS EVIDENCE OF ALUMINUM IN THE OIL SCREEN. SUSPECT PISTON FAILURE AS THE TEMPS AND PRESSURES WERE STABLE. THE ACFT WAS IN ACTIVE FIRE RETARDANT CONFIGURATION, SO THE ENGINE W
- [SDR CA090408001](https://openairdocs.org/sdr/CA090408001.md): Governor · bypassing · Apr 4, 2009 · Doug C54EDC · Propeller Governor
  > (CAN) UPON REMOVAL OF PROP GOVERNOR, AME FOUND OIL CONTROL PLUG BACKED OUT, THEREFORE BYPASSING OIL. PLUG WAS REINSTALLED AND TIGHTENED, THE GOVERNOR WAS REINSTALLED AND ENGINE RUN PROVED PROPER OPERATION. THE ACFT WAS RELEASED FOR SERVICE.
- [SDR CA071031007](https://openairdocs.org/sdr/CA071031007.md): Cylinder Head · cracked · Oct 29, 2007 · Doug C54EDC · Reciprocating Engine Cylinder Section
  > (CAN) CRACK DISCOVERED AT SPARK PLUG HOLE, RETURNED TO BASE AND REPLACED CYLINDER AND A/C RETURNED TO SERVICE. (TC NR 20071031007)
- [SDR CA070529003](https://openairdocs.org/sdr/CA070529003.md): Engine · making metal · May 27, 2007 · Doug C54EDC · Engine (Reciprocating)
  > (CAN) ENGINE REMOVED DUE TO METAL IN OIL SCREEN, TBO 750 HOURS. ENGINE BEING SENT OUT FOR OVERHAUL. (TC NR 20070529003)
- [SDR CA070420001](https://openairdocs.org/sdr/CA070420001.md): Cylinder · cracked · Apr 19, 2007 · Doug DC4 · Reciprocating Engine Cylinder Section
  > (CAN) REPLACED NR 14 CYLINDER ON NR 4 ENGINE, DUE TO CRACK. AIRCRAFT RETURNED TO SERVICE. (TC NR 20070420001)
- [SDR CA070102003](https://openairdocs.org/sdr/CA070102003.md): Engine · making metal · Dec 23, 2006 · Doug C54EDC · Engine (Reciprocating)
  > (CAN) ENGINE BEGAN TO RUN ROUGH, DECREASE IN OIL PRESSURE, ENGINE WAS SHUTDOWN AND FEATHERED. OIL SCREEN PULLED, MODERATE AMOUNT OF ALUMINUM FILINGS, ENGINE REMOVED AND SENT FOR OVERHAUL. NOTE: SUSPECT LINK PIN (TC NR 20070102003)
- [SDR CA051121004](https://openairdocs.org/sdr/CA051121004.md): Cylinder · cracked · Nov 17, 2005 · Doug C54ADC · Reciprocating Engine Cylinder Section
  > (CAN) NR 2 ENGINE WAS PRECAUTIONARILY SHUTDOWN DUE TO SHAKE. IT WAS DISCOVERED THAT NR 10 CYLINDER WAS CRACKED AT THE EXHAUST EAR. THE CYLINDER ASSY WAS REPLACED AND AIRCRAFT RETURNED TO SERVICE.
- [SDR CA050927003](https://openairdocs.org/sdr/CA050927003.md): Cylinder · cracked · Sep 23, 2005 · Doug C54ADC · Reciprocating Engine Cylinder Section
  > THE NR 8 CYLINDER CRACKED AT THE EXHAUST VALVE CAUSING THE ENGINE TO SHAKE.
- [SDR CA050826003](https://openairdocs.org/sdr/CA050826003.md): Cylinder · cracked · Aug 25, 2005 · Doug C54GDC · Reciprocating Engine Cylinder Section
  > (CAN) NR 10 CYLINDER CRACKED AT THE EXHAUST VALVE SIDE AND MADE ENGINE RUN A LITTLE ROUGH. ENGINE WAS SHUT DOWN PRECAUTIONARY AND THE CYLINDER WAS REPLACED.
- [SDR CA040716009](https://openairdocs.org/sdr/CA040716009.md): Case · failed · Jul 14, 2004 · Doug C54 · Engine (Reciprocating)
  > (CAN) DURING CLIMB THE NR 4 ENGINE WOULD NOT GOVERN, THE ENGINE WAS SHUTDOWN AND THE PROPELLER FEATHERED. THE AIRCRAFT RETURNED TO BASE WITHOUT FURTHER INCIDENT.
- [SDR CA040716007](https://openairdocs.org/sdr/CA040716007.md): Diaphragm · damaged · Jul 12, 2004 · Doug C54 · Engine (Reciprocating)
  > (CAN) DURING CRUISE THE NR 4 ENGINE STARTED TO BACKFIRE AND SHAKE. THE ENGINE WAS SHUTDOWN AND THE PROPELLER FEATHERED. THE FLIGHT RESUMED WITHOUT INCIDENT.
- [SDR CA040716008](https://openairdocs.org/sdr/CA040716008.md): Engine · malfunctioned · Jul 12, 2004 · Doug C54 · Engine (Reciprocating)
  > (CAN) DURING CLIMB THE NR 4 ENGINE STARTED TO BACKFIRE AND SHAKE. THE ENGINE WAS SHUT DOWN AND THE PROPELLER FEATHERED. THE FLIGHT RESUMED WITHOUT INCIDENT.
- [SDR CA040618007](https://openairdocs.org/sdr/CA040618007.md): Spark Plug · fouled · Jun 17, 2004 · Doug C54 · Spark Plug/Igniter
  > DURING CRUISE, THE PILOTS NOTICED THE NR 4 ENGINE STARTING TO BACKFIRE, THE BACK FIRING WAS GETTING OUT OF CONTROL SO THE ENGINE WAS SHUT DOWN AND THE PROPELLER FEATHERED. DURING THE INSPECTION OF THE NR 4 ENGINE IT WAS FOUND THAT THE FRONT AND REAR SPARKS FO
- [SDR CA040614005](https://openairdocs.org/sdr/CA040614005.md): Tube · inoperative · Jun 12, 2004 · Doug C54 · Reciprocating Engine Oil System
  > (CAN) DURING CRUISE THE PILOTS NOTICED A DROP IN OIL QUANTITY ON THE NR 2 ENGINE. THE ENGINE WAS SHUTDOWN AND PROPELLER FEATHERED. MAINTENANCE WAS CONTACTED AT ARRIVAL, THE OIL DRAIN TUBE WAS REPLACED AND THE AIRCRAFT RETURNED TO SERVICE.
- [SDR CA040416003](https://openairdocs.org/sdr/CA040416003.md): Cylinder Head · separated · Apr 16, 2004 · Doug C54A · Reciprocating Engine Cylinder Section
  > (CAN) DURING CRUISE, THE CREW NOTICE A SLIGHT VIBRATION TO THE NR 1 ENGINE, THEY ALSO NOTICED AN OIL LEAK. THE ENGINE WAS SHUT DOWN AND PROPELLER FEATHERED. DURING INSPECTION IT WAS NOTICED THAT THE NR 9 CYLINDER HEAD WAS SEPARATING FROM THE BARREL, THE ENGIN
- [SDR CA040412008](https://openairdocs.org/sdr/CA040412008.md): Gasket · leaking · Apr 10, 2004 · Doug C54 · Reciprocating Engine Oil System
  > (CAN) DURING CRUISE THE CREW NOTICED AN OIL LEAK ON THE NR 2 ENGINE. THE ENGINE WAS SHUT DOWN AND PROPELLER FEATHERED. ON INSPECTION IT WAS NOTICED THAT THE OIL PRESSURE LINE GASKET HAD BLOWN OUT. THE GASKET WAS REPLACED AND THE AIRCRAFT RETURNED TO SERVICE.
- [SDR CA040412009](https://openairdocs.org/sdr/CA040412009.md): Governor · out of rig · Apr 7, 2004 · Doug C54ADC · Propeller Governor
  > (CAN) DURING TAKE-OFF THE NR 3 ENGINE ENCOUNTERED AN OVERSPEED. THE AIRCRAFT RETURNED TO THE HANGER. IT WAS FOUND THAT THE PROP GOVENOR WAS OUT OF RIG. IT WAS RE-RIGGED AND THE AIRCRAFT WAS RETURNED TO SERVICE.
- [SDR CA040405008](https://openairdocs.org/sdr/CA040405008.md): Engine · malfunctioned · Apr 3, 2004 · Doug C54A · Engine (Reciprocating)
  > (CAN) DURING CRUISE, THE CREW NOTICED THAT THE NR 3 ENGING WAS STARTING TO OVERSPEED. THE ENGINE WAS SHUTDOWN, PROPELLER FEATHERED, AND THE FLT RESUMED WITHOUTANY FURTHER ACTION.
- [SDR CA021230001](https://openairdocs.org/sdr/CA021230001.md): Axle · bent · Dec 18, 2002 · Doug C54A · Wheel/Ski/Float
  > (CAN) AIRCRAFT WAS REPORTED TO HAVE A HARD LANDING TO MAINTENANCE AND WAS BROUGHT INTO THE HANGAR TO CARRY OUT A HARD LANDING INSPECTION. DOUGLAS SERVICE MANUAL FOR HARD LANDING INSPECTIONS WAS USED AND IT WAS FOUND UPON REMOVAL OF THE RT MAIN WHEELS THAT THE
- [SDR CA021210010](https://openairdocs.org/sdr/CA021210010.md): Cylinder Head · cracked · Nov 21, 2002 · Doug C54A · Reciprocating Engine Cylinder Section
  > (CAN) DURING CRUISE THE PILOT NOTICED THAT NR 3 ENGINE WAS BACKFIRING EXCESSIVELY. THE ENGINE WAS SHUT DOWN AND FEATHERED. WHEN MAINTENANCE INSPECTED THE ENGINE, THEY FOUND NR 4 CYLINDER WAS CRACKED BETWEEN BOTH SPARK PLUG HOLES. THE CYLINDER WAS REPLACED AND
- [SDR CA011017004](https://openairdocs.org/sdr/CA011017004.md): Engine · making metal · Sep 28, 2001 · Doug C54A · Engine (Reciprocating)
  > (CAN) DECAYING OIL PRESSURE SHORTLY AFTER TAKEOFF. THERE WAS SOME METAL CONTAMINATION IN THE MAIN OIL SCREEN. DUE TO THE HIGH T.S.O. (1373.1 HRS) THE DECISION WAS MADE TO REPLACE THE ENGINE AND HAVE FURTHER INVESTIGATION CARRIED OUT BY THE ENGINE OVERHAUL AGEN
- [SDR 20010226CW002](https://openairdocs.org/sdr/20010226CW002.md): Starter · inoperative · Jan 29, 2001 · N44911 · Doug C54BDC · Engine Starter
  > WOULD NOT TURN ENGINE OVER, INOPERATIVE.
- [SDR 20010226CW001](https://openairdocs.org/sdr/20010226CW001.md): Cylinder · damaged · Jan 28, 2001 · N44911 · Doug C54BDC · Reciprocating Engine Cylinder Section
  > VALVE CHECK SHOWS EXCESS WOBLE IN EX GUIDE.
- [SDR 20010226CW003](https://openairdocs.org/sdr/20010226CW003.md): Skin · damaged · Jan 23, 2001 · N44911 · Doug C54BDC · Trailing Edge Flaps
  > WEAR AND TEAR FROM GRAVEL STRIPS, NEED NEW SKINS. BEARING IN PORK CHOPS WERE CHANGED EVEN IF NOT NEEDED.
- [SDR 20010226CW005](https://openairdocs.org/sdr/20010226CW005.md): Bulb · burned out · Jan 23, 2001 · N44911 · Doug C54BDC · Exterior Lighting
  > BULB BURNED OUT.
- [SDR 20000829SH001](https://openairdocs.org/sdr/20000829SH001.md): Drive Gear · fractured · Jul 19, 2000 · N2225C · Frchld 22C7A · Reciprocating Engine Oil System
  > LOSS OF OIL PRESSURE (ENGINE) IN FLIGHT. FOUND MAIN OIL PUMP, PN 33019, DRIVESHAFT SHEARED JUST BELOW THE SCAVENGE VANES. THE CAUSE APPEARS TO BE A FATIGUE FRACTURE. THE ENGINE ASSY WILL BE REPLACED DUE TO OIL STARVATION. THE OIL PUMP ASSY WILL BE SENT TO
- [SDR CA981230011](https://openairdocs.org/sdr/CA981230011.md): Adapter · failed · Dec 9, 1998 · Doug C54A · Hydraulic System, Main
  > (CAN) LOSS OF MAIN SYSTEM HYDRAULIC PRESSURE ON APPROACH. GEAR DOWN AND LOCKED. GROUND TEST ADAPTER CAP BROKEN, REPLACED WITH STEEL CAP.
- [SDR CA980706006](https://openairdocs.org/sdr/CA980706006.md): Head · split · Jun 5, 1998 · Doug DC4 · Reciprocating Engine Cylinder Section
  > (CAN) NR 1 ENGINE DEVELOPED VIBRATION/SHAKING ON TAKEOFF. NR 1 ENGINE WAS SHUTDOWN. POST-FLIGHT INVESTIGATION FOUND THE NR 14 CYLINDER HEAD SPLIT. THE CYLINDER WAS REPLACED. THE ENGINE GROUND RUN SERVICEABLE AND THE AIRCRAFT WAS RETURNED TO SERVICE.
- [SDR CA980706005](https://openairdocs.org/sdr/CA980706005.md): Rod · broken · Jun 4, 1998 · Doug C54GDC · Reciprocating Engine Cylinder Section
  > (CAN) ENGINE BEGAN SEVERE VIBRATION IN CRUISE AND WAS SHUT DOWN. POST- FLIGHT INSPECTION FOUND THE CONNECTION ROD AT NR 14 CYLINDER HAD BROKEN. THE ENGINE WAS REPLACED AND TEST FLOWN SERVICEABLE.
- [SDR CA971024001](https://openairdocs.org/sdr/CA971024001.md): Bearing · disintegrated · Oct 16, 1997 · Doug C54A · Reciprocating Engine Power Section
  > (CAN) NR2 PROPELLER RPM BEGAN TO INCREASE AND COULD NOT BE CONTROLLED. THE NR2 ENGINE WAS SHUTDOWN. INVESTIGATION BY MAINTENANCE FOUND THE MASTER ROD BEARING FAILED, ALLOWING THE ASSOCIATED PISTONS TO OVER TRAVEL ON BOTH UP AND DOWN STROKES TO THE EXTENT THE P
- [SDR 97ZZZX3102](https://openairdocs.org/sdr/97ZZZX3102.md): Connect Rod · failed · Jun 12, 1997 · N800NC · Dhav DHC4A · Reciprocating Engine Power Section
  > ENGINE BROKE A CONNECTING ROD IN-FLIGHT. RETURNED TO BASE WITH 25 INCHES MANIFOLD PRESSURE. LANDED WITHOUT INCIDENT. ENGINE STILL RAN WITH BROKEN ROD AND DID NOT DESTROY ITSELF.
- [SDR CA970604002](https://openairdocs.org/sdr/CA970604002.md): Cable Link · broken · May 24, 1997 · Doug C54A · Landing Gear Retraction/Extension System
  > (CAN) IT IS SUSPECTED THAT THE RH OUTER BUNGEE CABLE LINK P/N 1107968 BROKE CAUSING THE ATTACHED BUNGEE SPRING P/N 1107969 TO REBOUND AND STRIKE THE GEAR INDICATOR LIGHT SWITCH BRACKET CAUSING MISALIGNMENT SUFFICIENT TO CAUSE THE DOWN AND LOCKED INDICATOR LIGH
- [SDR 96ZZZX5990](https://openairdocs.org/sdr/96ZZZX5990.md): Magneto · failed · Oct 2, 1996 · N800NC · Dhav DHC4A · Magneto/Distributor
  > WHILE RETURNING, IN-FLIGHT, ENGINE RT MAGNETO QUIT WORKING. FURTHER INSPECTION. FOUND MAG HAD FAILED DUE TO TIMING GEARS HAVING ROTATED CAUSING MAG TO LOSE ITS TIMING. MAG WAS PROPERLY SAFTIED WITH COTTER KEY STILL IN PLACE. FAILURE WAS CAUSED BY A BUSHING
- [SDR CA961002010](https://openairdocs.org/sdr/CA961002010.md): Cylinder · broken · Sep 18, 1996 · Doug C54A · Reciprocating Engine Cylinder Section
  > (CAN) #2 ENGINE BEGAN TO RUN ROUGH AND BACKFIRE IN CLIMB. ENGINE WAS SHUTDOWN AND AIRCRAFT RETURNED TO BASE. POST FLIGHT INSPECTION FOUND THE #6 CYLINDER EXHAUST ROCKER BOX SECTION BROKEN LOOSE FROM THE CYLINDER CAUSING THE EXHAUST VALVE TO REMAIN CLOSED. #6 C
- [SDR CA961001005](https://openairdocs.org/sdr/CA961001005.md): Lead · faulty · Sep 17, 1996 · Doug C54A · Magneto/Distributor
  > (CAN) #3 ENGINE BEGAN RUNNING ROUGH IN CRUISE. PRECAUTIONARY SHUT DOWN WAS CARRIED OUT. POST FLIGHT INSPECTION FOUND A SHORT TO GROUND HIGH TENSION LEAD FROM THE LEFT MAGNETO TO THE DISTRIBUTOR BLOCK. LEFT HIGH TENSION LEAD AND FRON TSPARK PLUG REPALCED. ENGIN
- [SDR CA960923005](https://openairdocs.org/sdr/CA960923005.md): Check Valve · disconnected · Sep 5, 1996 · Doug C54A · Hydraulic System, Main
  > (CAN) LOSS OF MAIN HYDRAULIC FLUID DURING FLIGHT DUE TO GROUND HYDRAULIC TEST CONNECTION (P/N 230566-8) COMING LOOSE AND SEPARATING FROM ADAPTER FITTING (P/N 22336699) THAT IS ATTACHED TO PIPE ASSEMBLY (P/N 5321900-26) HYDRAULIC PRESSURE LINE IN #3 ENGINE NACE
- [SDR CA960212201](https://openairdocs.org/sdr/CA960212201.md): Studs · broken · Jan 21, 1996 · Doug C54A · Reciprocating Engine Power Section
  > (CAN) VISIBLE OIL LEAK IN FLIGHT. ENGINE SHUT DOWN. INSPECTION DISCLOSED THAT THE 24 CYLINDER HOLD DOWN STUDS FOR #6 CYLINDER HAD FAILED. APPROXIMATELY 50 PERCENT HAD BROKEN AND THE OTHER 50 PERCENT HAD PULLED OUT OF THE CRANKCASE.
- [SDR CA960110201](https://openairdocs.org/sdr/CA960110201.md): Valve Seat · loose · Dec 7, 1995 · Doug C54A · Reciprocating Engine Cylinder Section
  > (CAN)IN CRUISE FLIGHT #4 ENGINE BEGAN TO RUN ROUGH ACCOMPANIED BY BACKFIRING THROUGH THE INDUCTION SYSTEM. THE ENGINE WAS SHUTDOWN. POST FLIGHT INSPECTION DISCLOSED THE #8 CYLINDER INTAKE VALVE SEAT HAD CA ME ADRIFT, PREVENTING THE INTAKE VALVE FROM CLOSING.

## 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 = 'R20007M2'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/engine/pratt-whitney-r-2000-7m2/reports

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