# JASC 8510: Reciprocating Engine Front Section - Type: JASC system/component code (FAA) - ATA chapter: 85 Reciprocating Engine - Title in the code table: RECIPROCATING ENGINE FRONT SECTION - Service difficulty reports: 70 - FAA code table: https://www.faa.gov/sites/faa.gov/files/JASC_Code.pdf#page=71 - Page: https://openairdocs.org/jasc/8510 ## What it covers For reports of the piston engine front cases which contain the propeller shaft, reduction gears, and accessory drive. Typical parts are propeller shaft, gear, bearing, bushing, case, seal, pinion gear. ## Service difficulty reports (70, newest 50) - [SDR N3XR202106170001](https://openairdocs.org/sdr/N3XR202106170001), Mar 11, 2021: Diamon DA42NG. DAMPENER. WORN. DURING AN ANNUAL INSPECTION, THE TORSION VIBRATION DAMPER (P/N-E4B-73-000-000-KIT) WAS INSPECTED PER THE MANUFACTURER'S (N312ER) - [SDR 2020FA0000562](https://openairdocs.org/sdr/2020FA0000562), Dec 23, 2020: Cirrus SR22. PISTON PIN. DESTROYED. NR 5 CYLINDER SUSPECTED CRACKED. CONFIRMED ON DYE PEN WITH A CRACK AT THE INJECTOR BOSS. REMOVED POWER ASSEMBLY FOR DISP (N321BG) - [SDR CA190411012](https://openairdocs.org/sdr/CA190411012), Apr 9, 2019: Diamon DA40. DRIVE SHAFT. BROKEN. (CAN) PILOT REPORTED THAT HE WAS HAVING HARD TIME STARTING BUT ENGINE WAS ALMOST RUNNING SO HE ADDED POWER TO THROTTLE A - [SDR N3XR2019040500001](https://openairdocs.org/sdr/N3XR2019040500001), Apr 5, 2019: Cessna 172S. PLUG. LEAKING. DURING A 100 HR INSPECTION, OIL WAS FOUND LEAKING FROM THE CRANKSHAFT EXPANSION PLUG P/N-STD-1211. THE PLUG WAS REPLACED (N488ER) - [SDR N3XR2019040500002](https://openairdocs.org/sdr/N3XR2019040500002), Apr 4, 2019: Cessna 172S. PLUG. LEAKING. DURING A 100 HR INSPECTION, OIL WAS FOUND LEAKING FROM THE CRANKSHAFT EXPANSION PLUG P/N-STD-1211. THE PLUG WAS REPLACED (N475ER) - [SDR CA190304019](https://openairdocs.org/sdr/CA190304019), Mar 1, 2019: Piper PA12. SUPPORT. CRACKED. (CAN) WHILE INSPECTING AT ANNUAL ONE OF THE AMES NOTICED AN ODD LINE THAT LOOKED LIKE A CRACK ON THE STARTER RING GEAR S - [SDR 2018FA0000479](https://openairdocs.org/sdr/2018FA0000479), Oct 26, 2018: Cirrus SR22. DRIVE GEAR. DAMAGED. INTERNAL ENGINE DAMAGE TO CRANKCASE GEAR REQUIRING ENGINE TEAR DOWN AND INSPECTION. DURING ROUTINE ENGINE OIL CHANGE, SM (N718SR) - [SDR CCJA201809105016](https://openairdocs.org/sdr/CCJA201809105016), Sep 7, 2018: Cessna 414A. COLLAR. SPALLED. INSTALLED ENGINE AFTER OVERHAUL. AFTER THIRD START, THE PROPELLER FEATHERED. FOUND OIL TRANSFER COLLAR SPALLED/GROOVED. (N414WJ) - [SDR 2017FA0000009](https://openairdocs.org/sdr/2017FA0000009), Jan 1, 2017: Amtr CHALLENGER2. BEARING. FAILED. WHILE IN CRUISE CONDITION AT 5500 RPM THE ENGINE STARTED TO SLOW DOWN, THE CRAFTS AUXILIARY FUEL PUMP WAS STARTED. THE E (N105WZ) - [SDR 2015F00088](https://openairdocs.org/sdr/2015F00088), Jun 19, 2015: Tecnam P2006T. GEARBOX. CRACKED. ON DESCENT, RT ENG EXPERIENCED LOSS OF OIL, VIBRATION & LOSS OF POWER. ENG WAS SHUTDOWN INFLIGHT & UNEVENTFUL SINGLE ENG (N912PF) - [SDR 2015FA0000257](https://openairdocs.org/sdr/2015FA0000257), Jun 3, 2015: Beech A36. BEVEL GEAR. SEPARATED. REMOVED AND REINSTALLED NEWLY O/H PROPELLER GOVENOR BECAUSE OF SLUGGISH ACTION. TECH SUPPORT RECOMMENDED FLIGHT CHECK. D (N394EA) - [SDR 2015FA0000066](https://openairdocs.org/sdr/2015FA0000066), Feb 19, 2015: Cessna 310R. SEAL. BLEW OUT. ICE BUILDUP ON VENT TUBE CAUSED CRANKCASE PRESSURES TO INCREASE AND CRANKSHAFT SEAL TO PUSH ON RETAINERS TILL FAILURE. F - [SDR XGKR201311200001](https://openairdocs.org/sdr/XGKR201311200001), Sep 9, 2013: Diamon DA42. CLUTCH. DISINTEGRATED. GEARBOX CLUTCH DISINTEGRATED CAUSING COMPLETE POWER FAILURE, CAUSING ENGINE OVER-SPEED AND LOSS OF ENGINE OIL AND OIL PR (N415TS) - [SDR CA121101002](https://openairdocs.org/sdr/CA121101002), Oct 31, 2012: Cessna 180F. RISER. CRACKED. (CAN) DURING 50 HR INSPECTION, CRACKED INTAKE MANIFOLD RISER, PN G27658A1 FOUND AT LT SIDE MOUNT AT OIL SUMP FLANGE PERI - [SDR CA110428012](https://openairdocs.org/sdr/CA110428012), Feb 17, 2011: Hofflu H36DIMONA. BUSHING. SEIZED. (CAN) 914F-3 (TURBOCHARGED) ENGINE WAS BEING OVERHAULED (10 YEARS IN SERVICE) AND THE FORWARD CRANKSHAFT BUSHING IN THE - [SDR CA100916005](https://openairdocs.org/sdr/CA100916005), Sep 15, 2010: Mooney M20J. ALT AIR DOOR. BROKEN. THE ACFT WAS TAKINGOFF FROM AIRFIELD WHEN THE ENGINE SUDDENLY LOST POWER. AN EMERGENCY WAS DECLARED. THE ENG MIXTURE WAS - [SDR 2010FA0000530](https://openairdocs.org/sdr/2010FA0000530), Jun 11, 2010: Diamon DA42. CLUTCH. BLOWN. DURING CRUISE FLIGHT THE PILOT SAID THE LT ENGINE LOST POWER THEN IT OVERSPEED. ENGINE SHUTDOWN. (N208PA) - [SDR CA090305009](https://openairdocs.org/sdr/CA090305009), Jan 25, 2009: Moravn Z242L. SEAL. LEAKING. (CAN) THE PILOT HAD TO MAKE A PRECAUTIONARY LANDING ON A FROZEN LAKE. THE PILOT DETECTED SOMETHING BURNING AND NOTICED O - [SDR 2007FA0001053](https://openairdocs.org/sdr/2007FA0001053), Nov 30, 2007: Cessna 421B. LOCK PLATE. MISSING. THIS ENGINE WAS REMOVED ON AUGUST 31, 2007, HOBBS TIME 1523.9 DUE TO CRACKED ENGINE CASE. THE ENGINE WAS SENT TO RAM AIR (N707DT) - [SDR O5W2007F00000](https://openairdocs.org/sdr/O5W2007F00000), Nov 20, 2007: Cessna 421B. LOCK PLATE. DESTROYED. THIS ENGINE WAS REMOVED ON AUG 31, 2007, HOBBS TIME 1523.9 DUE TO A CRACKED ENGINE CASE. THE ENGINE WAS SENT FOR REPAIR. (N707DT) - [SDR CA070717012](https://openairdocs.org/sdr/CA070717012), Jun 11, 2007: Dhav DHC3. THRUST BEARING. BROKEN. (CAN) WHILE TAXIING FROM DOCK, THE AIRCRAFT ENGINE STARTED SHAKING AND THE PILOT SHUT THE ENGINE DOWN. AIRCRAFT TOWED BA - [SDR CA070321004](https://openairdocs.org/sdr/CA070321004), Mar 16, 2007: Piper PA31350. CRANKCASE. CRACKED. (CAN) THE AIRCRAFT WAS BROUGHT INTO THE HANGAR DURING AN INTERMEDIATE STOP TO WORK ON SOME SNAGS. THE ENGINEER NOTICED A - [SDR 2006FA0000544](https://openairdocs.org/sdr/2006FA0000544), May 26, 2006: Amtr AVIDFLYER. DRIVE GEAR. DAMAGED. ACCIDENT INVESTIGATION. ON CLIMB-OUT ENGINE RPM INCREASED AND PROPELLER RPM DECREASED. THE GRD-2000 GEAR REDUCTION UNIT (N157VM) - [SDR 2006FA0000133](https://openairdocs.org/sdr/2006FA0000133), Jan 20, 2006: Piper PA28161. CRANKCASE. BROKEN. BOTH FORWARD BOLT ATTACHMENT FLANGES WERE CRACKED OFF OF STARTER ATTACHMENT FLANGE ASSEMBLY. THIS CAUSED THE STARTER TO (N263ND) - [SDR CA050718005](https://openairdocs.org/sdr/CA050718005), Jul 4, 2005: Doug DC6B. CASE. DETERIORATED. AIRCRAFT DEPARTED AND DURING CRUISE, THE FLIGHT CREW NOTICED THAT ENGINE NR 2 WAS COVERED IN OIL. THE PROP WAS FEATHERED - [SDR NACA20040031](https://openairdocs.org/sdr/NACA20040031), Aug 31, 2004: Doug DC6. CASE. LEAKING. NR 1 ENGINE SHUT DOWN DUE TO EXCESSIVE OIL LOSS. REPLACED NR 1 ENGINE NOSE CASE ASSEMBLY DUE TO A BLOWN ACCESSORY PLUG. (N779TA) - [SDR CA040818003](https://openairdocs.org/sdr/CA040818003), Aug 18, 2004: SHAFT. SHEARED. (CAN) TWO PINION SHAFTS FOUND SHEARED WHEN REDUCTION GEAR SECTION REMOVED. ALL BROKEN PARTS FOUND AND ENGINE CLEANED FOR - [SDR NACA20040032](https://openairdocs.org/sdr/NACA20040032), Aug 3, 2004: Doug DC6. CASE. LEAKING. NR 4 ENGINE SHUT DOWN DUE TO EXCESSIVE OIL LEAK. REPLACED NOSE CASE ASSEMBLY DUE TO A BLOWN ACCESSORY PLUG. (N779TA) - [SDR CA040722006](https://openairdocs.org/sdr/CA040722006), Jul 22, 2004: Cndair CL2151A10. NOSE COWL. FAILED. (CAN) AIRCRAFT WAS ON CLIMB OUT AFTER WATERSCOOPING OPERATION. THE RT ENGINE OVERSPED BEYOND 3400 RPM AT 20. - [SDR O3O2004F00000](https://openairdocs.org/sdr/O3O2004F00000), Jan 9, 2004: Piper PA32260. SHAFT. BROKEN. DISMANTLED THIS ENGINE DUE TO FUEL CONTAMINATION, FOUND THE PROP GOVERNOR IDLER SHAFT BROKEN AT THE KEYWAY AREA. ALSO TH (N4798S) - [SDR 2003FA0001257](https://openairdocs.org/sdr/2003FA0001257), Dec 8, 2003: Univar 415C. BEARING. WRONG PART. ENGINE STOPPAGE INFLIGHT, FIRST DIAGNOSIS WAS CARBURETOR PROBLEM. SECOND STOPPAGE INDICATED A DIFFERENT PROBLEM. TEARDOW (N94107) - [SDR 2003FA0001230](https://openairdocs.org/sdr/2003FA0001230), Dec 5, 2003: Diamon DA20C1. BRACKET. CRACKED. ALTERNATOR BRACKET FAILED AFTER THE HEAD BROKE OFF THE AN4-5A BOLT THAT RETAINS THE BRACKET TO THE SPACER BETWEEN THE CA - [SDR J792003F00002](https://openairdocs.org/sdr/J792003F00002), Jun 6, 2003: Beech 58. SEAL. LEAKING. DURING ANNUAL 100 HOUR INSPECTION, FOUND RIGHT ENGINE CRANKSHAFT SEAL LEAKING. REPLACED WITH NEW PN 641250. LEAK CHECK, (N95KM) - [SDR J792003F00001](https://openairdocs.org/sdr/J792003F00001), Jun 6, 2003: Beech 58. SEAL. LEAKING. DURING ANNUAL 100 HOUR INSPECTION, FOUND LEFT ENGINE CRANKSHAFT SEAL LEAKING. REPLACED WITH NEW PN 641250. LEAK CHECK, O (N95KM) - [SDR FTU2003F00000](https://openairdocs.org/sdr/FTU2003F00000), Dec 19, 2002: Gulstm 500S. BRACKET. BROKEN. DURING ANNUAL INSPECTION AND REMOVAL OF ENGINE FOR OVERHAUL, ALTERNATOR BELT TENSION BRACKET WAS FOUND BROKEN AT THE END (N1938S) - [SDR CA020801009](https://openairdocs.org/sdr/CA020801009), Jul 31, 2002: Cndair CL2151A10. CASE. DAMAGED. (CAN) FLIGHT CREW OBSERVED OIL LEAKING FROM RIGHT ENGINE AND INITIATED A PRECAUTIONARY ENGINE SHUTDOWN. AIRCRAFT LANDED - [SDR CA020808003](https://openairdocs.org/sdr/CA020808003), Jul 23, 2002: Grumav G21A. CASE. CRACKED. (CAN) DURING ROUTINE MAINTENANCE A 3 INCH CRACK WAS FOUND IN THE FORWARD NOSE CASE STARTING JUST ABOVE THE OIL SUMP AND - [SDR CA020710004](https://openairdocs.org/sdr/CA020710004), Jul 9, 2002: Cndair CL2151A10. CASE. DAMAGED. (CAN) FLIGHT CREW OBSERVED OIL LEAKING FROM RT ENGINE AND INITIATED A PRECAUTIONARY ENGINE SHUTDOWN. AIRCRAFT LANDED SAF - [SDR 2001FA0000305](https://openairdocs.org/sdr/2001FA0000305), Sep 18, 2001: Piper PA30. SEAL. FAILED. DURING A CROSS-COUNTRY FLIGHT BETWEEN CNO AND SPF (31 AUG 01 THRU 3 SEP 01), OIL STREAKS FROM THE NOSE BOWLS OF BOTH ENG (N7331Y) - [SDR CA011102008](https://openairdocs.org/sdr/CA011102008), Aug 2, 2001: Cessna R182. CRANKCASE. CRACKED. (CAN) THE PILOT NOTICED AFTER AN HOUR OF FLIGHT THAT THE OIL PRESSURE WAS DROPPING. HE PERFORMED A PRECAUTIONARY LANDING - [SDR CA010725026](https://openairdocs.org/sdr/CA010725026), Jun 26, 2001: Dhav DHC2MK1. CASE. LEAKING. (CAN) SMALL OIL LEAK ON NOSE SECTION. REMOVED NOSE SECTION AND DISCOVERED CRACK RADIATING FROM BOLT HOLE IN BEARING BORE - [SDR 2001FA0000345](https://openairdocs.org/sdr/2001FA0000345), Mar 4, 2001: Amtr LANCAIRES. BEARING. FAILED. FLYING AT 5000 FEET, SAW SMOKE COME OUT OF FRONT OF COWL. PULLED POWER BACK. SMOKE QUIT. INCREASED POWER TO TRY TO MAKE (N350N) - [SDR DHL2001367518](https://openairdocs.org/sdr/DHL2001367518), Feb 8, 2001: Airbus A300B4203. BLADE. NICKED. C CHECK, NR 2 ENGINE FAN ROTOR BLADES FOUND TO BE NICKED AND BURRED. ALL BLADES BLENDED PER GE STANDARD PRACTICES MANUAL (N367DH) - [SDR WVBA01100](https://openairdocs.org/sdr/WVBA01100), Jul 24, 2000: Piper PA31350. CAMSHAFT. DAMAGED. DURING INSPECTION, METAL CONTAMINATION WAS DISCOVERED IN THE SPIN ON OIL FILTER. FURTHER INVESTIGATION FOUND NR 4 AND NR (N300ED) - [SDR 20000731SH005](https://openairdocs.org/sdr/20000731SH005), Jul 17, 2000: Piper PA28181. CRANKSHAFT. FAILED. CRANKSHAFT FAILED IN-FLIGHT, FORWARD CHEEK OF NR 4 CONROD JOURNAL. AIRCRAFT LANDED AT AIRPORT. NO DAMAGE. (X) (N2265M) - [SDR 20000719SH015](https://openairdocs.org/sdr/20000719SH015), May 19, 2000: Cessna 180A. CRANKSHAFT. FAILED. PER TCM MSB 00-5, CRANKSHAFT WAS REJECTED BY TELEDYNE CONTINENTAL MOTORS. (X) (N9728B) - [SDR CA990927022](https://openairdocs.org/sdr/CA990927022), Aug 3, 1999: SUPPORT. CRACKED. (CAN) CRACK AT BASE OF THE INTAKE MANIFOLD ATTACH SUPPORT BRACKET. - [SDR 99ZZZX2071](https://openairdocs.org/sdr/99ZZZX2071), Apr 1, 1999: Diamon DA20C1. GEAR. FAILED. OPERATOR REPORTED BIG DROP IN OIL PRESSURE. REMOVED OIL FILTER AND FOUND STEEL AND ALUMINUM CHUNKS (LARGE). SOURCE OF ME (N212CS) - [SDR 99ZZZX1450](https://openairdocs.org/sdr/99ZZZX1450), Mar 16, 1999: GEARS. WORN. MENTIONED GEARS HAD ALL TEETH WORN OFF. THIS ALLOWED METAL FITTINGS TO CONTAMINATE ENGINE NECESSATATING ENGINE REMOVAL. - [SDR 99ZZZX1449](https://openairdocs.org/sdr/99ZZZX1449), Mar 16, 1999: GEARS. WORN. MENTIONED GEARS HAD ALL TEETH WORN OFF. THIS ALLOWED METAL FITTINGS TO CONTAMINATE ENGINE NECESSATATING ENGINE REMOVAL. All 70: https://openairdocs.org/jasc/8510/reports.md ## Other codes in chapter 85 - [JASC 8500](https://openairdocs.org/jasc/8500): Engine (Reciprocating) (745 reports) - [JASC 8520](https://openairdocs.org/jasc/8520): Reciprocating Engine Power Section (2,213 reports) - [JASC 8530](https://openairdocs.org/jasc/8530): Reciprocating Engine Cylinder Section (4,340 reports) - [JASC 8540](https://openairdocs.org/jasc/8540): Reciprocating Engine Rear Section (167 reports) - [JASC 8550](https://openairdocs.org/jasc/8550): Reciprocating Engine Oil System (669 reports) - [JASC 8560](https://openairdocs.org/jasc/8560): Reciprocating Engine Supercharger (21 reports) - [JASC 8570](https://openairdocs.org/jasc/8570): Reciprocating Engine Liquid Cooling (10 reports) - [JASC 8597](https://openairdocs.org/jasc/8597): Engine System Wiring (5 reports) --- From OpenAirDocs.org, an independent open copy of FAA and NTSB data. 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