# Service difficulty reports: Lycoming O-320-B2B

A list on [Lycoming O-320-B2B](https://openairdocs.org/engine/lycoming-o-320-b2b.md).

Newest first. General aviation reporting is voluntary.

- [SDR 2022FA0000554](https://openairdocs.org/sdr/2022FA0000554.md): Torque Tube · broken · Sep 27, 2022 · N7207 · Piper PA18150 · Elevator Structure
  > RH ELEVATOR TORQUE TUBE CRACKED/SEVERED/FAILED. MAIN SPAR TUBE FAILED JUST OUTBOARD OF OUTBOUND HINGE ATTACHMENT. FOUND DURING PRE-FLIGHT.
- [SDR 2022FA0000395](https://openairdocs.org/sdr/2022FA0000395.md): Carburetor · low torque · Jul 25, 2022 · N406AC · Amerac S1AAMERAC · Aircraft Fuel Distribution System
  > ALL 4 FLOAT BOWEL BOLTS COMPLETELY BACKED OFF RENDERING BOWL LOOSE WITH AT LEAST 1/8" GAP BETWEEN UPPER MATING SURFACE. CAUSES ENGINE TO RUN QUITE ROUGH AND THREATENS COMPLETE LOSS OF POWER. THIS IS THE SECOND CASE I HAVE SEEN OF THIS (ONE PREVIOUSLY ON A FRES
- [SDR 2018FA0000461](https://openairdocs.org/sdr/2018FA0000461.md): Cylinder · cracked · Feb 16, 2018 · Reciprocating Engine Cylinder Section
  > WHILE SERVICING ACFT EXHAUST SYSTEM I LOOKED IN THE EXHAUST PORTS AND FOUND ALL 4 CYLINDERS CRACKED IN THE SAME LOCATION FROM THE EXHAUST SEAT TO THE EXHAUST STUD. THREE OF THE CYLINDERS WERE CRACKED IN THE SPARK PLUG BOSS WITH 1 OF THEM HAVING NUMEROUS SMALL
- [SDR CA140925006](https://openairdocs.org/sdr/CA140925006.md): Battery Pack · inoperative · Sep 22, 2014 · Blanca 7GCBC · Emergency Locator Beacon
  > (CAN) DURING THE ANNUAL INSPECTION OF THE ELT, IT WAS DISCOVERED THAT THE BATTERIES WERE TIME-EXPIRED AND VERY LOW VOLTAGE (LESS THAN 1 VOLT FOR 3 OUT OF 4 BATTERIES). THE ELT WAS MARKED ON THE OUTSIDE WITH A STICKER INDICATING THAT THE BATTERIES WERE NEXT DUE
- [SDR 2013FA0000314](https://openairdocs.org/sdr/2013FA0000314.md): Power Supply · dislodged · Jun 2, 2013 · N63WT · Bbavia 7GCAA · Exterior Lighting
  > ACFT HAD A STROBE POWER SUPPLY IN THE OTBD LT WING TIP COME LOOSE FROM ITS MOUNTING LOCATION ON THE OUTSIDE OF THE LAST FULL LENGTH RIB. IT PROCEEDED TO BOUNCE AROUND THE INSIDE OF THE WING FROM FRONT TO BACK. IT CAUSED CONSIDERABLE DAMAGE TO THE PAINT AND P
- [SDR 2011FA0000811](https://openairdocs.org/sdr/2011FA0000811.md): Axle · cracked · Dec 12, 2011 · N8119H · Piper PA28161 · Main Landing Gear Strut/Axle/Truck
  > CRACK FOUND IN EAR OF RT AXLE STUB DURING ANNUAL INSPECTION. UNKNOWN IF IT HAS EVER BEEN CHANGED BEFORE. UNKNOWN IF CRACK IS RESULT OF HARD LANDING OR FATIGUE (OR BOTH). ACFT IS INVOLVED IN A FLIGHT SCHOOL OPERATION. R & R PART, RESEALED STRUT. ACFT RELE
- [SDR 2011FA0000280](https://openairdocs.org/sdr/2011FA0000280.md): Retainer · broken · Apr 30, 2011 · N18SY · Piper PA18 · Engine (Reciprocating)
  > 37 HOURS SINCE THE ENGINE WAS LAST REASSEMBLED, THE VALVE COVERS WERE REMOVED. BROKEN PUSH ROD RETAINER SPRINGS WERE FOUND IN 3 OUT OF 4 CYLINDERS. 1 BROKEN STEEL SPRING PIECE HAD BEEN BENT BY THE ROCKET ARM AND HAD SIGNIFICANTLY DENTED THE VALVE COVER NEARLY
- [SDR 2011FA0000327](https://openairdocs.org/sdr/2011FA0000327.md): Pump · defective · Apr 25, 2011 · N157GS · Amtr RV6 · Fuel Boost Pump
  > EXPERIMENTAL FUEL BOOST PUMP PN PX375B-40A-5-25-F, SN 30313 01-10. NEW PUMP BENCH TESTED BEFORE INSTALLATION, WOULD NOT SELF PRIME. PUMP ALSO WOULD NOT MAKE ANY PRESSURE ONCE PRIMED AND OUTLET CLOSED OFF. PUMP WAS DIASSEMBLED AND INSPECTED. FOUND BAD DESIGN
- [SDR 2010FA0001263](https://openairdocs.org/sdr/2010FA0001263.md): Crankshaft · corroded · Dec 27, 2010 · Reciprocating Engine Power Section
  > CRANKSHAFT ID FOR CORROSION. DURING THE REMOVAL OF CRANKSHAFT EXPANSION PLUG STD 1211, CRANKSHAFT INTERNAL URETHABOND 104 WAS FOUND BUBBLED. REMOVED URETHABOND 104 AND FOUND CORROSION PITS THOUGHOUT THE TOP 3.5 INCH SURFACE. ENGINE IS FACTORY O/H, AD98-02-08
- [SDR 2010FA0001064](https://openairdocs.org/sdr/2010FA0001064.md): Carburetor · malfunctioned · Jul 27, 2010 · N7271D · Piper PA18A150 · Fuel Control/Reciprocating Engines
  > ENGINE RAN POORLY ON CLIMB FROM BANNER PICK UP - ABOUT 1200 FT AGL ENGINE ONLY PRODUCED 100 RPM WITH BLACK SMOKE COMING FROM EXHAUST STACKS. NR 2D, NR 4 SPARK PLUGS WERE BLACK WITH SOOT. IT WAS DETERMINED THAT THE CARBURETOR WAS NOT FUCTIONING PROPERLY. R/P
- [SDR CA090325010](https://openairdocs.org/sdr/CA090325010.md): Hub · unserviceable · Mar 25, 2009 · Piper PA18125 · Propeller Hub Section
  > (CAN) DURING AN INSP IAW CAR 625, APPENDIX C, PARAGRAGH 5 IT WAS FOUND THAT CORROSION IN THE MOUNTING BOLT HOLES HAS RENDERED THE PROPELLER UNSERVICEABLE.
- [SDR 2008FA0000267](https://openairdocs.org/sdr/2008FA0000267.md): Rib · bowed · Apr 7, 2008 · N872JM · Bbavia 7GCAA · Ailerons
  > REMOVED THE RT AILERON DUE TO REPORTS OF BINDING BETWEEN THE AILERON AND WING DURING AEROBATIC MANEUVERS. ON THE GROUND THE IB AILERON TO AILERON BAY RIB CLEARANCE WAS APPROX.0625 INCH. IAW TECH SUPPORT THE CLEARANCE SHOULD BE.2500 INCH. THE WING IB AILER
- [SDR 2007FA0000980](https://openairdocs.org/sdr/2007FA0000980.md): Muffler · broken · Oct 19, 2007 · N98SA · Piper PA18150 · Engine Noise Suppressor
  > THE TAILPIPE CRACKED AWAY FROM THE SHELL. THERE ARE NO STRAPS WELDED FROM THE PIPE TO THE SHELL LIKE SOME OTHER MUFFLERS. THE METAL FAILED, NOT THE WELD.
- [SDR 2006FA0001012](https://openairdocs.org/sdr/2006FA0001012.md): Main Bearing · failed · Oct 11, 2006 · Engine (Reciprocating)
  > THIS ENGINE WAS DISMANTLED DUE TO METAL CONTAMINATION. WE DISCOVERED THAT THE REAR SURFACE OF THE BEARING WAS PEELING AWAY. PROBABLE CAUSES OF THIS BEARING FAILURE ARE UNKNOWN. (K)
- [SDR CA030826002](https://openairdocs.org/sdr/CA030826002.md): Strainer · stripped · Aug 12, 2003 · Piper PA28160 · Aircraft Fuel Filter/Strainer
  > (CAN) DURING INSPECTION OF THE FUEL GASCOLATOR AT THE ANNUAL, THE STUD FOR THE SAFETY NUT WAS FOUND TO BE STRIPPED. THE GASCOLATOR BALE WAS REPLACED WITH A NEW PART AS A RECTIFICATION TO THE PROBLEM.
- [SDR 20001113SH002](https://openairdocs.org/sdr/20001113SH002.md): Float · misaligned · Sep 30, 2000 · N9372C · Piper PA28161 · Fuel Control/Reciprocating Engines
  > COMPLETE ENGINE FAILURE WITH FORCED LANDING. DISCOVERED CARBURETOR FLOODING ENGINE. UPON DISASSEMBLY OF CARBURETOR WITH FAA REP, FOUND FLOAT HANGING UP SIDE OF BOWL. FLOAT APPEARS TO BE MISALIGNED DURING ASSSEMBLY AND SOLDERING OF FLOAT. (X)
- [SDR 20000911SH004](https://openairdocs.org/sdr/20000911SH004.md): Magneto · inoperative · Aug 21, 2000 · Magneto/Distributor
  > ENGINE WOULD NOT START NORMALLY. COIL IN MAGNETO SHOWING OPEN. THIS LEFT MAG OPENED AND REPLACED, FAULTY COIL (NUMBER ON COIL, M3525 0310).
- [SDR 20000911SH005](https://openairdocs.org/sdr/20000911SH005.md): Magneto · malfunctioned · Aug 21, 2000 · Magneto/Distributor
  > ENGINE RAN OKAY. MAGNETO DISASSEMBLED AS PRECAUTIONARY. FOUND COIL OUT OF LIMITS WITH VERY HIGH RESISTANCE ON SECONDARY CIRCUIT. (COIL NR 5, M3525 011989). (X)
- [SDR 99ZZZX630](https://openairdocs.org/sdr/99ZZZX630.md): Bushing · worn · Dec 7, 1998 · N82530 · Piper PA18150 · Magneto/Distributor
  > ENGINE IS FACTORY REMANUFACTURED 2-11-98. MAGNETO GOOD, PREVIOUSLY WOULD NOT START, NEXT FLIGHT. BRASS BUSHING IS DISTRIBUTOR BLOCK WORN BADLY.
- [SDR 99ZZZX631](https://openairdocs.org/sdr/99ZZZX631.md): Bushing · worn · Dec 7, 1998 · N82530 · Piper PA18150 · Magneto/Distributor
  > ENGINE IS FACTORY REMANUFACTURED 2-11-98. MAGNETO DROP GOOD PREVIOUSLY. WOULD NOT START, NEXT FLIGHT. BRASS BUSHING IN DISTRIBUTOR BLOCK WORN BADLY.
- [SDR CA970618001](https://openairdocs.org/sdr/CA970618001.md): Rib · corroded · Jun 7, 1997 · Piper PA28160 · Vertical Stabilizer, Spar/Rib
  > (CAN) VERTICAL STABILIZER REMOVED FOR PAINT STRIPPING. THE TWO RIBS P/N 66972-00 AND P/N 63506-00 WERE FOUND CORRODED AND NEEDED REPLACING.
- [SDR AU970409](https://openairdocs.org/sdr/AU970409.md): Crankcase · worn · Apr 7, 1997 · Piper PA18150 · Reciprocating Engine Power Section
  > (AUS) ENGINE CRANKCASE TUNNEL OUT OF LIMITS - CAMSHAFT LOBES WORN
- [SDR AU970185](https://openairdocs.org/sdr/AU970185.md): Elt · damaged · Mar 6, 1997 · Piper PA18150 · Emergency Locator Beacon
  > (AUS) ELT BATTERIES DAMAGED AND WORN DUE TO POOR DESIGN OF THE ELT
- [SDR CA960528103](https://openairdocs.org/sdr/CA960528103.md): Tube · defective · May 6, 1996 · Piper PA28160 · Stabilizer Control System
  > (CAN) PREPARING THE TUBE FOR INSTALLATION, THERE WAS A BLOB OF PAINT IN THE AREA OF MOUNTING OF THE WEIGHT. ON REMOVING THE BLOB OF PAINT, A FOLD IN THE METAL AND A 3 INCH LONGITUDINAL CRACK IN THE TUBE WAS REVEALED. MATERIAL DEFECT. POOR QUALITY CONTROL.

## 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 = 'O320B2B'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/engine/lycoming-o-320-b2b/reports

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