# Service difficulty reports: Lycoming IO-540-E1A5

A list on [Lycoming IO-540-E1A5](https://openairdocs.org/engine/lycoming-io-540-e1a5.md).

Newest first. General aviation reporting is voluntary.

- [SDR EY2R201507090001](https://openairdocs.org/sdr/EY2R201507090001.md): Retainer · cracked · Jul 6, 2015 · Propeller Governor
  > FLYWEIGHT RETAINING DISC FOUND CRACKED DURING MPI. CRACK INDICATION WAS FOUND WHILE PROPELLER GOVERNOR WAS SENT IN FOR OVERHAUL.
- [SDR CA150417005](https://openairdocs.org/sdr/CA150417005.md): Pressure Switch · failed · Apr 15, 2015 · Gulstm 500B · Hydraulic Pressure Sensor
  > (CAN) HYDRAULIC SYS PRESS SWITCH INTERNAL FAILURE CAUSED ALL HYD SYSTEM FLUID TO ESCAPE OUT PRESS SWITCH DRAINING ALL FLUID. LANDING GEAR WAS SELECTED DOWN USING EMER GEAR EXTENSION SYS & ACFT LANDED SAFELY. HYD OPERATED FLAPS & BRAKE SYS WAS AFFECTED ALSO.
- [SDR 2012FA0000788](https://openairdocs.org/sdr/2012FA0000788.md): Wire · damaged · Nov 15, 2012 · N1176Z · Gulstm 500B · Fuel System Wiring
  > AFTER FINDING A BROKEN WIRE ON THE FUEL LEVEL TRANSMITTER OF ANOTHER ACFT OF THE SAME MAKE AND MODEL, MECHANIC INSPECTED AND FOUND FUEL LEVEL TRANSMITTER WITH BRITTLE WIRE ON THE TRANSMITTER VARIABLE CONTACT MAKING AN NTERMITTENT CONNECTION.
- [SDR 2012FA0000753](https://openairdocs.org/sdr/2012FA0000753.md): Wire · broken · Oct 25, 2012 · N1165Z · Gulstm 500B · Fuel System Wiring
  > AFTER AN OCCURANCE OF AN OFF AIRPORT LANDING, DUE TO FUEL STARVATION, ON OCT 10,2012, WITH FUEL GUAGE SHOWING 60 GALLONS ON BOARD. THE MECHANIC FOUND A BROKEN WIRE ON THE FUEL LEVEL TRANSMITTER VARIABLE CONTACT. PROBABLE CAUSE COULD BE THE WIRE LOOKED TO BE
- [SDR 2009FA0000951](https://openairdocs.org/sdr/2009FA0000951.md): Plug · damaged · Oct 16, 2009 · N324RR · Gulstm 500B · Reciprocating Engine Power Section
  > LT ENG STARTED LOSING RPM. PILOT REPORTED FUEL PRESSURE DROPPED BELOW NORMAL RANGE BUT HAVE TO BELIEVE IT WAS OIL PRESSURE. ENG WAS CAGED AND LANDED SAFELY. THE OIL PRESSURE SCREEN WAS FULL OF ALUMINUM RESTRICTING OIL FLOW TO THE ENG. ON TEARDOWN, THE NR 4
- [SDR 813200701](https://openairdocs.org/sdr/813200701.md): Rocker Shaft · broken · Aug 14, 2007 · N518TM · Gulstm 500B · Reciprocating Engine Cylinder Section
  > LEFT ENGINE PILOT NOTICED PARTIAL POWER LOSS. AFTER LANDING THERE WAS A LARGE OIL LEAK FROM THE NR 6 EXHAUST PUSHROD TUBE WHICH HAD BEEN JARRED LOOSE AND UNCLIPPED. THE CAM FOLLOWER WAS BROKEN. THE TANG ON THE ROCKER COVER THAT HOLDS THE EXHAUST ROCKER SHAF
- [SDR 5072007](https://openairdocs.org/sdr/5072007.md): Cylinder · broken · May 1, 2007 · N690RR · Gulstm 500B · Reciprocating Engine Cylinder Section
  > THE HOLD DOWN STUDS ON NR 2 CYLINDER BROKE CAUSING ON OIL LEAK TO LOSS OIL PRESSURE.
- [SDR 040607](https://openairdocs.org/sdr/040607.md): Flow Divider · leaking · Apr 6, 2007 · N411ET · Gulstm 500B · Fuel Divider
  > THE RT ENGINE EXPERIENCED A LOSS OF POWER AND INDICATED A SIGNIFICANT INCREASE IN FUEL FLOW. THE ENGINE WAS SHUTDOWN AND A THE AIRCRAFT LANDED AT THE NEXT AVAILABLE AIRPORT. MAINTENANCE REVEALED THAT THE RETURN TO TANK LINE FROM THE FUEL FLOW DIVIDER WAS LOOSE
- [SDR 01302007](https://openairdocs.org/sdr/01302007.md): Pump · damaged · Jan 30, 2007 · N610BW · Gulstm 500B · Vacuum Distribution System
  > LEFT VACUUM PUMP LOOSENED FROM ENGINE AND CAUSED A LOOSE OF OIL PRESSURE. THE VACUUM PUMP DRIVE WAS DAMAGED IN THAT THE GEAR WAS ROUNDED OFF. IT WAS HARD TO DETERMINE IF THE GEAR WORE AND CREATED STRESS TO WORK IT LOOSE FROM THE ENGINE OR IT WORKED LOOSE AND
- [SDR ZJWA102306001](https://openairdocs.org/sdr/ZJWA102306001.md): Exhaust Valve · loose · Sep 15, 2006 · N446AE · Gulstm 500B · Reciprocating Engine Cylinder Section
  > LEFT ENGINE WAS LOSING RPM. WHEN RPM GOT BELOW 2000 THE PILOT FEATHERED THE ENGINE AND LANDED SAFELY. AT ENGINE TEAR DOWN THE NR 5 CYLINDER EXHAUST SEAT HAD COME LOOSE IN THE HEAD AND CAUSE ALUMINUM SHAVINGS TO GET IN THE OIL SYSTEM AND BLOCK THE PROP GOVERN
- [SDR ZJWA462006](https://openairdocs.org/sdr/ZJWA462006.md): Rod Bearing · delaminated · Apr 6, 2006 · N23BQ · Gulstm 500B · Engine (Reciprocating)
  > METAL CONTAMINATION IN OIL SCREEN DURING INSPECTION. REMOVED ALL CYLINDERS AND RODS AND FOUND 2 ROD BEARINGS FLAKING METAL OFF. THESE 2 BEARINGS AND ONE OTHER WERE NOT THE NEWEST PART NUMBER AS CURRENTLY SUPPLIED BY SUPERIOR. THEY WERE REPLACED AND ENGINE R
- [SDR CA050824019](https://openairdocs.org/sdr/CA050824019.md): Magneto · failed · Aug 7, 2005 · Gulstm 500B · Magneto/Distributor
  > (CAN) DURING A ROUTINE COMPANY FLIGHT, THE NR 1 ENGINE STARTED RUNNING ROUGH. THE AIRCRAFT LANDED AND CALLED MAINTENANCE. UPON INSPECTION THE LT MAG WAS FOUND SEPARATED IN TWO, THE REAR HALF WAS STILL BOLTED TO THE ENGINE PAD AND THE FRONT HALF WAS HANGING B
- [SDR H3AA1](https://openairdocs.org/sdr/H3AA1.md): Bracket · cracked · Nov 30, 2004 · N24KM · Gulstm 500B · Exhaust Turbocharger
  > A CRACK APPROXIMATELY 2.5 INCHES LONG WAS NOTICED IN THE UPPER PORTION OF THE TURBO CHARGER ATTACH BRACKET. UPON REMOVAL OF FROM THE ENGINE MOUNT NUMEROUS CRACKS WERE NOTED RUNNING ALONG WELDS AND THROUGHOUT THE ENTIRE ASSEMBLY. SUBSEQUENT REMOVAL OF THE TUR
- [SDR 24KM1](https://openairdocs.org/sdr/24KM1.md): Bracket · cracked · Nov 30, 2004 · N24KM · Gulstm 500B · Exhaust Turbocharger
  > A CRACK APPROXIMATELY 2.5 INCHES LONG WAS NOTICED IN THE UPPER PORTION OF THE TURBO CHARGER ATTACH BRACKET. UPON REMOVAL OF FROM THE ENGINE MOUNT NUMEROUS CRACKS WERE NOTED RUNNING ALONG WELDS AND THROUGHOUT THE ENTIRE ASSEMBLY. SUBSEQUENT REMOVAL OF THE TUR
- [SDR ZJW2004F00001](https://openairdocs.org/sdr/ZJW2004F00001.md): Cap · out of position · Sep 14, 2004 · N127KH · Gulstm 500B · Reciprocating Engine Cylinder Section
  > NR 5 CYLINDER WRIST PIN CAP ROLLED UP IN PISTON. CAUSE METAL FRAGMENTS IN OIL SCREEN. RESTRICTED OIL FLOW TO GOVERNOR. CAUSED DROP IN RPM. ENGINE WAS FEATHERED AND LANDED SAFETY.
- [SDR ZJW2004F00002](https://openairdocs.org/sdr/ZJW2004F00002.md): Cylinder · broken · Sep 13, 2004 · N6154X · Gulstm 500B · Reciprocating Engine Cylinder Section
  > NR 1 CYLINDER BARREL BROKE CAUSING PISTON TO BE CAUGHT ON THE DOWN STROKE. THEN ROD BOLTS BROKE AND ROD CAP CAME OFF. ENGINE LOST MUCH OF OIL AND WAS FEATHERED AND LANDED SAFELY.
- [SDR AUS20020745](https://openairdocs.org/sdr/AUS20020745.md): Muffler · cracked · Jul 25, 2002 · Piper PA24260 · Engine Noise Suppressor
  > (AUS) LH MUFFLER OUTLET PIPE CRACKED AT REAR SUPPORT CLAMP.
- [SDR CA020507021](https://openairdocs.org/sdr/CA020507021.md): Stud · sheared · Apr 26, 2002 · Gulstm 500S · Landing Gear Steering System
  > (CAN) WHEN THE PILOT SELECTED GEAR DOWN, DID NOT RECEIVE A GREEN NOSE GEAR LIGHT. PILOT DID FLY BYS AND IT WAS NOTED NOSE GEAR WAS NOT IN LOCKED POSITION. PILOT LANDED & NOSE GEAR COLLAPSED WITH MINIMUM DAMAGE. INSPECTION REVEALED THAT P/N 750080-1 SPACER, (TH
- [SDR 2001FA0000497](https://openairdocs.org/sdr/2001FA0000497.md): Crankcase · cracked · Oct 22, 2001 · N127KH · Gulstm 500B · Reciprocating Engine Power Section
  > CRANKCASE WAS CRACKED AT NR 2 UPPER CYLINDER STUD AND LEAD INTO OIL PRESSURE GALLEY. ENGINE LOST OIL PRESSURE AND WAS FEATHERED.
- [SDR AUS20011017](https://openairdocs.org/sdr/AUS20011017.md): Plate · corroded · Sep 21, 2001 · Gulstm 500S · Wing, Plate/Skin
  > (AUS) EXTERNAL SPAR CAP SUPPORT PLATE RH SIDE CORRODED IN AREA OF JOINT BETWEEN TWO PLATES. EVIDENCE OF CORROSION IN SIMILAR AREA ON LH SIDE.
- [SDR 20001227SH011](https://openairdocs.org/sdr/20001227SH011.md): Capacitor · inoperative · Dec 5, 2000 · N1153C · Gulstm 500B · Magneto/Distributor
  > PRE-FLIGHT RUN UP REVEALED EXCESS RPM DROP ON MAG CHECK. POST-REPLACEMENT INSPECTION REVEALED POINTS BURNED AND CAPACITOR WIRE BROKEN AT CONNECTOR END. (X)
- [SDR 20010413CW014](https://openairdocs.org/sdr/20010413CW014.md): Wire · inoperative · Nov 8, 2000 · N159BM · Gulstm 500B · Magneto/Distributor
  > PILOT REPORTED MAGNETO INOPERATIVE. POST INSPECTION REVEALED CAPACITOR WIRE BROKEN AT CONNECTOR END AND COIL WIRE BROKEN AT CONNECTOR END.
- [SDR 20001129SH024](https://openairdocs.org/sdr/20001129SH024.md): Wire · broken · Oct 31, 2000 · N780SP · Gulstm 500B · Magneto/Distributor
  > PRE-FLIGHT RUNUP SHOWED SEVERE MAGNETO DROP. POST-REPLACEMENT INSPECTION SHOWED BURNED CONTACTS AND CAPACITOR WIRE BROKEN. (X)
- [SDR 20001031SH005](https://openairdocs.org/sdr/20001031SH005.md): Cylinder · dislodged · Oct 10, 2000 · N917GT · Gulstm 500B · Reciprocating Engine Power Section
  > NR 2 CYLINDER DISLODGED FROM CRANKCASE. ROD CAP FROM NR 2 ROD CAME OFF ROD BOLT, PN SL74644, AT LEAST ONE WAS FOUND BROKEN. THE OTHER BOLT WAS NOT FOUND. (X)
- [SDR CA000824013](https://openairdocs.org/sdr/CA000824013.md): Control Box · burned · Jul 31, 2000 · Gulstm 500B · Flight Management Computing Hardware System
  > (CAN) PILOT REPORTED SMOKE IN THE COCKPIT AND LANDED. INSPECTION FOUND THAT FM CONTROL HEAD WAS UNSERVICEABLE AND SMELLED BURNT. SERVICEABLE FM CONTROL HEAD WAS INSTALLED AND TESTED WITHOUT RECURRENCE.
- [SDR 20000719SH017](https://openairdocs.org/sdr/20000719SH017.md): Rod Bolt · broken · Jun 21, 2000 · N780SP · Gulstm 500B · Reciprocating Engine Power Section
  > ROD CAP CAME OFF NR 2 CYLINDER AS A RESULT OF EITHER SL74644 BREAKING OR SL128186 NUT BACKING OFF. (X)
- [SDR 20000719SH018](https://openairdocs.org/sdr/20000719SH018.md): Nut · failed · Jun 21, 2000 · N780SP · Gulstm 500B · Reciprocating Engine Cylinder Section
  > INTAKE GUIDE VARIANCE, 0.0020 INCH. (X)
- [SDR 20000720SH003](https://openairdocs.org/sdr/20000720SH003.md): Rod Bolt · broken · Jun 21, 2000 · N304JT · Gulstm 500B · Reciprocating Engine Power Section
  > NR 5 CYLINDER ROD CAP CAME OFF. BOTH ROD BOLTS WERE BROKEN. THE CYLINDER WAS BROKEN AND SEPARATED FROM CRANKCASE AT ITS FLANGE. (X)
- [SDR 20000720SH004](https://openairdocs.org/sdr/20000720SH004.md): Nut · broken · Jun 21, 2000 · N304JT · Gulstm 500B · Reciprocating Engine Power Section
  > NR 5 CYLINDER ROD CAP CAME OFF. BOTH ROD BOLTS WERE BROKEN. THE CYLINDER WAS BROKEN AND SEPARATED FROM CRANKCASE AT ITS FLANGE. (X)
- [SDR 20000711SH002](https://openairdocs.org/sdr/20000711SH002.md): Nut · separated · Jun 14, 2000 · N524HW · Gulstm 500B · Reciprocating Engine Power Section
  > LEFT ENGINE LOST OIL PRESSURE. FEATHERED IN-FLIGHT. DISASSEMBLED ENGINE. ROD, P/N 75061, ON NR 4 CYLINDER BROKEN AND IT LOOKS AS IF ONE NUT CAME LOOSE CAUSING THE FAILURE. (X)
- [SDR CA000713002](https://openairdocs.org/sdr/CA000713002.md): Bracket · cracked · Jan 20, 2000 · Gulstm 500B · Rudder Control System
  > (CAN) ON INSPECTION BOTH LT AND RT RUDDER PULLEY BRACKETS WERE FOUND CRACKED AT THE TOP PORTION. PULLEY BRACKETS WERE PATCHED USING THICKER ALUMINUM. FURTHER INSPECTIONS FOUND TWO OTHER PULLEY BRACKETS CRACKED IN THE SAME LOCATION.
- [SDR 20000713SH026](https://openairdocs.org/sdr/20000713SH026.md): Stud · broken · May 21, 1999 · N411PT · Gulstm 500B · Reciprocating Engine Power Section
  > NR 6 CYLINDER HOLD-DOWN STUDS, 4 EACH P/N 38-13, 2 EACH P/N 38-13, WERE BROKEN CAUSING OIL LEAKS AND VIBRATION. OIL LEAK WAS DETECTED ON POST-FLIGHT. (X)
- [SDR 20000714SH023](https://openairdocs.org/sdr/20000714SH023.md): Camshaft · broken · May 21, 1999 · N888CA · Gulstm 500B · Reciprocating Engine Power Section
  > FORWARD END OF CAMSHAFT BROKE WHERE PROPELLER GOVERNOR DRIVING GEAR ATTACHES. THIS RESULTED IN LOSS OF PROPELLER GOVERNOR AND LOSS OF RPM. ENGINE WAS FEATHERED AND LANDED SAFELY. (X)
- [SDR 99ZZZX1008](https://openairdocs.org/sdr/99ZZZX1008.md): Cylinder · misoverhauled · Feb 3, 1999 · N51RF · Gulstm 500S · Reciprocating Engine Cylinder Section
  > UPON INSTALLING AN OVERHAULED CYLINDER, NOTED THE CYLINDER WAS NOT ALIGNED WITH THE ONE NEXT TO IT AT THE ROCKER BOX AREA. THE SHORTEST PUSH ROD WOULD NOT GO IN. IT WAS FOUND OUT THAT THE CYLINDER WAS TOO SHORT AFTER OVERHAUL. ANOTHER CYLINDER WAS PUT ON AN
- [SDR 99ZZZX584](https://openairdocs.org/sdr/99ZZZX584.md): Stud · broken · Feb 27, 1998 · N615MT · Gulstm 500B · Reciprocating Engine Cylinder Section
  > LEFT ENGINE NR 2 CYLINDER BROKE 6 OF THE 8 STUDS HOLDING IT TO THE CRANKCASE. THIS RESULTED IN OIL LEAK AND CYLINDER FLANGE AND SKIRT BREAKING. TWO REMAINING STUDS AND NUTS WERE STILL SECURE. AFTER LOSS OF OIL, OIL PRESSURE DROPPED. ENGINE WAS CAGED AND A
- [SDR 97ZZZX4454](https://openairdocs.org/sdr/97ZZZX4454.md): Cylinder · separated · Sep 12, 1997 · N222LE · Gulstm 500B · Reciprocating Engine Cylinder Section
  > HEAD SEPARATED AT DOME. SEPARATION STARTED AT 4 O'CLOCK POSITION AND 11 O'CLOCK AND PROPAGATED UNTIL TOTAL FAILURE. EXHAUST AND OIL DRAIN HELD CYLINDER ON ENGINE, 900 SMOH. SUBMITTER STATED BETTER DYE-PEN INSPECTION AT OVERHAUL WITH PARTICULAR ATTENTION TO
- [SDR 97ZZZX274](https://openairdocs.org/sdr/97ZZZX274.md): Cylinder · cracked · Dec 18, 1996 · N315TG · Gulstm 500B · Reciprocating Engine Cylinder Section
  > PILOT REPORTED DROPPING CHT ON LEFT ENGINE. POST-FLIGHT REPORTED LARGE OIL LEAK. FOUND NR 6 CYLINDER HAD A CRACK THROUGH UPPER BASE FLANGE. FORWARD THREE CYLINDER HOLD DOWN STUDS WERE BROKEN. THIS CYLINDER WAS PURCHASED NEW FROM LYCOMING AT OVERHAUL. STUD
- [SDR 96ZZZX1542](https://openairdocs.org/sdr/96ZZZX1542.md): Cylinder · failed · Mar 11, 1996 · N615MT · Gulstm 500B · Reciprocating Engine Cylinder Section
  > NR 2 CYLINDER BROKE AT BASE. CYLINDER CAME LOOSE FROM THE CRANKCASE CAUSING ENGINE VIBRATION. PILOT SHUT DOWN ENGINE IN-FLIGHT. ON DISASSEMBLY, FOUND CRANKCASE AND PISTON DAMAGED. THE ENGINE WAS REMOVED FROM SERVICE.

## 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 = 'IO540E1A5'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/engine/lycoming-io-540-e1a5/reports

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