JASC 7820

Service difficulty reports · 248

Reports filed under 7820 · Engine Noise Suppressor, newest first.

Query with SQL
duckdb -csv -c "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 jasc_code = '7820'
  ORDER BY difficulty_date DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

SDR CA140717012Muffler · cracked(CAN) AD CF-90-03 R2 EXHAUST TYPE CABIN HEATER INSPECTION CARRIED OUT. FOUND EXHAUST CRACKED AT RIGHT HAND INLET FLANGE RADIUS. EXHAUST MUFFLER, LEFT HAND & RIGHT HAND EXHAUST HEADER PIPES REMOVED. SENT TO MANUFACTURER FOR REPAIR & FIT INSPECTION.Jul 8, 2014 · Cessna 182BSDR CA140618001Baffle · broken(CAN) PILOT HEARD TICKING NOISE AT FULL POWER FOR TAKEOFF. TAKEOFF ABORTED. SUBSEQUENT GROUND RUNS DETECTED DEFECTIVE INTERNAL BAFFLING IN FORWARD MUFFLER ON LT ENGINE. APROXIMATELY 50% OF INTERNAL BAFFLING WAS MISSING AND REMAINING PORTION WAS FLOATING FREE. Jun 16, 2014 · Piper PA44180SDR CA140429007Baffle · collapsed(CAN) DURING A TRAINING FLIGHT, THE PILOT NOTICED SIGNIFICANT ENGINE POWER LOSS AND RETURNED TO BASE. UPON INSPECTION IT WAS FOUND THAT THE INTERNAL BAFFLE INSIDE THE MUFFLER ASSY HAD COLLAPSED. MUFFLER ASSY WAS R & R WITH NEW UNIT, THE SQUIRREL CAGE WAS INTApr 28, 2014 · Piper PA28140SDR CA140127003Muffler · cracked(CAN) DURING CF-90-03, INSPECTION A CRACK WAS FOUND AT FORWARD FLANGE. CRACK IS APPROXIMATELY 75 PERCENT AROUND THE CIRCUMFERENCE. THERE IS SEPERATION ALONG THE CRACK. EXHAUST TRAILS ARE FOUND INSIDE SHROUD AND WELL DOWN INTO HOT AIR DUCTING. MUFFLER IDENTIFIJan 17, 2014 · Cessna 150LSDR CA130724004Muffler · damaged(CAN) DURING INSPECTION, THE FORWARD MUFFLER ON THE RT ENGINE WAS FOUND TO HAVE THE INTERNAL BAFFLE MISSING. PART OF BAFFLE IS WEDGED SOLIDLY IN THE TAIL PIPE OF THE MUFFLER. THE PIECE THAT IS LEFT IS ABOUT 4" LONG AND STICKS UP INTO THE MAIN CHAMBER OF THE Jul 24, 2013 · Piper PA44180SDR CA130628001Baffle · failed(CAN) ACFT HAD THE INTERNAL BAFFLE TUBE ON THE FORWARD MUFFLER COMPLETELY MISSING ON THE LT ENGINE AND THE RT ENGINE FORWARD MUFFLER HAD THE TUBE PARTIALLY JAMMED IN THE EXHAUST. BOTH MUFFLERS HAD LESS THAN 1000 HRS ON THEM.Jun 25, 2013 · Piper PA44180SDR JJW2013F00000Muffler · crackedPILOT FOUND RT SIDE OF NEW MUFFLER CRACKED OVER 50 PERCENT OF DIAMETER WHERE EXHAUST COLLECTOR ENTERED THE MUFFLER SECTION. THIS ACFT WAS 2200 HR O/H WITH NEW MFG FACTORY KIT COMPLETED 2/1/2013 BY AUTHORIZED MFG SERVICE FACILITY. NO KNOWN REASON FOR THIS CRAFeb 15, 2013 · N771MM · Robsin R22BETASDR CA130214006Muffler · cracked(CAN) PILOTS COMPLAIN OF LACK OF HEAT. BLEED AIR SYS INSPECTED AND FOUND THIS UNIT CRACKED. ALONG WITH WORN SCEET TUBING .7500". NEW MUFFLER INSTALLED WITH NEW SCEET ATTACHING TUBING. SYSTEM CHECKED SERVICABLE. FLEET INSPECTION COMPLETED AND FOUND 2 OTHER Feb 5, 2013 · Airtrc AT802ASDR 2013FA0000098Muffler · failedPILOT OBSERVED SMOKE IN THE COCKPIT, DECLARED EMERGENCY AND LANDED NORMALLY. ON INSPECTION OF THE RT ENGINE COMPARTMENT, MUFFLER AFT WALL WAS MISSING AND EXHAUST BLAST WAS DIRECTED ON THE BATTERY BOX DIRECTLY AFT OF THE MUFFLER. BLAST MELTED THE BATTERY AND Jan 10, 2013 · N3096J · Cessna 150ESDR CA130107010Muffler · blocked(CAN) DURING AN INSPECTION OF THE LT ENGINE FOR ROUGHNESS, A VISUAL INSPECTION WAS CARRIED OUT ON THE RT ENGINE. WHEN THE EXHAUST TAILPIPE WAS INSPECTED IT WAS FOUND TO BE BLOCKED. THE MUFFLER WAS REMOVED FOR THE AFT NR 3 AND NR 4 CYLINDERS ON THE RT ENGINE.Jan 4, 2013 · Piper PA44180SDR EPUA20121228002Muffler · leakingPILOT REPORTED THERE WAS AN EXHAUST ODOR IN THE COCKPIT. MX REPLACED THE LT MUFFLER ASSEY AND CO2 DETECTORS IN THE COCKPIT.Dec 27, 2012 · N7389U · Cessna 207ASDR DJFA20120517001Diffuser · brokenPRIOR TO FLIGHT, A CREW NOTICED DAMAGE TO THE RT ENGINE NOISE SUPPRESSOR (DIFFUSER). MX VERIFIED THE FAILURE. AN ENGINE BOROSCOPE INSPECTION WAS PERFORMED AND NO ADDITIONAL DAMAGE WAS FOUND. THE NOISE SUPPRESSOR WAS REPLACED AND THE FAILED UNIT SENT BACK FOMay 17, 2012 · N436FL · Beech 400ASDR EPUA2012041101Muffler · leakingPOSSIBLE CARBON MONOXIDE IN COCKPIT, MX REPLACED LT MUFFLER ASSEMBLY.Apr 10, 2012 · N73067 · Cessna 207ASDR J7SA20120209001Muffler · wornRED APU FIRE WARNING LIGHT ILLUMINATED IN FLIGHT. AIR DIVERSION. REPLACED APU MUFFLER ASSEMBLY.Feb 9, 2012 · N515FX · Bombdr BD1001A10SDR CA111215010Muffler · broken(CAN) THE MUFFLER WAS REMOVED SERVICEABLE FROM AN ACFT WHICH WAS DOWN FOR EXTENDED MAINTENANCE, TT THIS INSTALL 1539.9 HOURS) AND INSTALLED ON THE SAME MODEL ACFT TO CLEAR A SNAG. THE MUFFLER TAILPIPE WAS FOUND LOOSE DURING A PREFLIGHT INSPECTION ONLY 27.5 HRDec 12, 2011 · Piper PA44180SDR CA111110006Muffler · broken(CAN) LEFT MUFFLER OUTLET PIPE FOUND MISSING. INSPECTION OF REMAINING MUFFLER DISCOVERED EXTENSIVE INTERNAL CORROSION AND PARTIAL COLLAPSE OF INNER CONE.Nov 4, 2011 · Grob G115CSDR CA111012002Muffler · cracked(CAN) WHEN COMPLETING AN OUT OF PHASE INSPECTION ON THE ACFT, IT WAS DISCOVERED THAT THE REAR MUFFLER ON THE RT ENGINE HAD SEPARATED INTERNALLY. THE OUTER SHROUD OF THE MUFFLER HAD BECOME COMPLETELY DETACHED FROM THE END PIPES AND THE INTERNAL PIPE. THE MUFFOct 7, 2011 · Piper PA44180SDR CA110826010Baffle · broken(CAN) THE PILOT REPORTED THAT ON APPROACH WITH PROPS IN FULL FINE, THE ENGINE RPMS WERE SPLIT WITH MORE THAN 100 RPM DIFFERENCE FROM LT TO RT. INVESTIGATION FOUND THAT PART OF THE INTERNAL BAFFLES ON THE FWD MUFFLER ON THE LT ENGINE HAD DROPPED DOWN AND WAS BAug 12, 2011 · Piper PA44180SDR 2011FA0000545Insert · deformedFOUND MUFFLER INSERT INNER BAFFLE DEFORMED DURING AN ANNUAL INSPECTION.Aug 8, 2011 · N477DS · Diamon DA40SDR CA110719012Muffler · leakingWHILE CARRYING OUT AD CF90-03-R2 PART 2- PRESSURE TEST- LARGE LEAKS WERE FOUND IN THE AREA SURROUNDING THE MUFFLER TAIL PIPE AREA UNDER THE STRUCTURE FOR SUPPORTING THE HEAT MUFF SHROUD. THE LEAKS WERE COMING FROM UNDER THIS SUPPORT STUCTURE AND NO DEFECTS WEJul 18, 2011 · Cessna 172MSDR CA110714007Muffler · crackedMUFFLER FOUND CRACKED AT INSPECTION.Jul 14, 2011 · Robsin R44RAVENIISDR 2011FA0000494Baffle · looseCONE SHAPED BAFFLE IN MUFFLER CAME LOOSE AND COMPLETELY BLOCKED EXHAUST STACK.Jul 5, 2011 · N7392X · Cessna R182SDR CA110518009Muffler · crackedFOUND CRACKED UNDER HEATER MUFF SHROUD.May 6, 2011 · Robsin R44RAVENIISDR CA110323010Slip Joint · worn(CAN) DURING ANNUAL INSPECTION, AN EXHAUST LEAK WAS DETECTED FROM A SLIP JOINT AT THE LT END OF FRONT MUFFLER. EXHAUST ASSY REMOVED AND FOUND LARGE PORTION OF INNER BAFFLE ON MUFFLER MISSING AND END PIECE OF BAFFLE STILL ATTACHED PARTIALLY BLOCKING EXHAUST EXMar 23, 2011 · Piper PA28181SDR 2011FA0000143Muffler · obstructedTHE STARBOARD MUFFLER BAFFLE CONE BROKE LOOSE FROM THE MUFFLER HOUSING AND OBSTRUCTED THE EXHAUST PIPE, CREATING BACK PRESSURE IN THE EXHAUST SYSTEM WHICH CAUSED THE ENGINE TO LOSE POWER. THE SUBSEQUENT FORCED LANDING ACCIDENT SUBSTANTUALLY DAMAGED THE AIRCRAFMar 2, 2011 · N3420U · Cessna 182FSDR CA101118002Heat Exchanger · cracked(CAN) LEAK DETECTED. UPON COMPLETION OF AD 90-03 R2 LEAK IDENTIFIED IN CABIN HEAT EXCHANGER. UNIT IS A FAA-STC AFTERMARKET EXHAUST INSTALLED PER STC SA01801AT. SIMILAR INSTALLATIONS CONTAINING THE SAME DESIGN ARE INSTALLED IN MANY OTHER MODEL AIRCRAFT. IT CONTNov 10, 2010 · Cessna 172NSDR 2011FA0000100Muffler · crackedTHE MUFFLER WAS SENT FOR O/H ON 10/11/10 BECAUSE IT WAS CRACKED.Oct 11, 2010 · N1029N · Maule MXT7180ASDR CA101006013Muffler · unserviceableDURING ROUTINE 100 HR INSP, THE EXHAUST MUFFLER WAS SUSPECTED UNSERVICEABLE BY AD CF90-03R2, PART I, VISUALLY AND SO IT WAS REMOVED FOR PRESSURE TEST AND FAILED OUT THE SMALL HOLE BY THE EXIT STACK. THIS AREA IS VERY HARD TO VISUALLY INSPECT.Oct 5, 2010 · Cessna 172PSDR CA100913012Muffler · meltedEXHAUST MUFFLER C169-32(C169-31 SUB ASSEMBLY) SENT IN FROM CUSTOMER AT 540.0 TTSN. MUFFLER HAS MASSIVE FAILURE AT THE TAILPIPE ATTACHMENT JOINT. OPERATOR IS AWARE THAT THESE FAIL. THERE IS NO AD ON THESE AND THERE REALLY SHOULD BE. AD CF-90-03R2 DOES NOT COMSep 13, 2010 · Robsin R44RAVENIISDR 2010FA0001067Muffler · unserviceableBAFFLE PLATE IN LT MUFFLER APPEARED TO BE OUT OF POSITION WHEN INSPECTED BY SHINING A FLASHLIGHT UP THE TAILPIPE. ON REMOVAL, IT WAS FOUND THAT THE BAFFLE PLATE WAS CRACKED AND WARPING IN A MANNER THAT COULD HAVE CREATED A SIGNIFICANT BLOCKAGE IN THE FLOW OF Sep 8, 2010 · N6011U · Beech 76SDR CA100813011Muffler · crackedEXHAUST MUFFLER WAS BROUGHT IN AFTER CRACKS WERE DISCOVERED. CRACK LOCATED AT CONNECTION WITH PART 9954100-7. PART 9954100-7 IS SUSPECT TO BE EITHER SHORT OR LONG. PART 9954100-7 IS REPLACED 4:1. CRACK WILL BE WELDED UP IAW AC43.13 AND PRESSURE TESTED FOR OTAug 13, 2010 · Cessna 172SSDR CA100813009Muffler · wornMUFFLER SENT IN WITH MUFFLER BODY WORN 50 PERCENT OF THE WAY THROUGH. MUFFLERS ON THIS MODEL ACFT WILL ALWAYS WEAR REGARDLESS OF PMA, OEM, PDA MFG. THIS MUFFLER IS A OEM UNIT. MUFFLERS CONTACTING EACH OTHER CAN RESULT IN FAILURE OF THE END OF THE MUFFLER, ANDAug 6, 2010 · Piper PA44180SDR CA100811011Baffle · separatedON AUGUST, 2010, AT APPROX 20:00 PDT, RECEIVED A CALL FROM FLIGHT SCHOOL, INFORMING US THAT ACFT HAD MADE AN UNSCHEDULED LANDING FOLLOWING A PARTIAL POWER LOSS EVENT. ACFT WAS REMOVED FROM SERVICE PENDING INVESTIGATION. ON THE 9TH OF AUGUST, CONDUCTED AN INSAug 6, 2010 · Piper PA28140SDR CA100527002Muffler · cracked(CAN) TAIL PIPE WELD CRACKED UNDER THE DOUBLER. THIS CRACK IS VERY DIFFICULT TO DETECT VISUALLY WITHOUT INSERTING A SMALL LIGHT THROUGH THE QUARTER INCH HOLE IN THE DOUBLER AND OBSERVING THROUGH THE OTHER.May 27, 2010 · Cessna 172PSDR 2010FA0000336Baffle · broken(M2ZR) FOLLOWING TAKEOFF, PILOT DETECTED AN UNUSUAL ENGINE SOUND ACCOMPANIED BY LOSS OF ENGINE POWER. PILOT RETURNED TO AIRPORT, LANDING DOWNWIND ON A TAXI WAY. INSP OF ENGINE REVEALED RT MUFFLER PN 1250251-16 BAFFLE/FLAME CONE ASSY. HAD COME LOOSE AND WAS Apr 12, 2010 · N4918Y · Cessna 210NSDR 2010FA0000279Muffler · crackedUPON PREFLIGHT INSP, THE RT ENG AFT MUFFLER WAS FOUND TO BE MISSING THE TAIL/EXIT PIPE SECTION. THE MUFFLER HAD BEEN ON THE ENG FOR ONLY 350 HRS TIS. UPON INSP, THE MUFFLER WAS NOTICED TO HAVE SOME CAN AREA CHAFING MARKS ON IT. ANALYSIS WAS DONE ON THIS MUFMar 3, 2010 · N577ER · Piper PA44180SDR CA100813012Muffler · crackedMUFFLER O/H BY CRS WAS BROUGHT IN FOR REPAIR EVALUATION. MUFFLER IS CRACKED IN DOUBLER AT THE TAILPIPE ATTACHMENT POINT WAS BROUGHT IN. MULTIPLE CRACKS LOCATED AT CO GUARD ATTACHMENT TO CAN. CRACK WAS DISCOVERED DURING INSP IAW TCCA AD CF-90-03R2. REPLACEMFeb 19, 2010 · Cessna 172SSDR CA100205002Muffler · cracked(CAN) CRACKED MUFFLER AT TAIL PIPE TO CAN WELD. FOUND WHEN SHINING A LIGHT THROUGH SMALL HOLE FOUND ON TAILPIPE SUPPORT. (TC 20100205002)Feb 4, 2010 · Cessna 172PSDR ECQ2009F00000Muffler · brokenINSP REVEALED FWD MUFFLER ON RT ENGINE LOOSE. FURTHER INSP REVEALED THAT: INBD MUFFLER FLANGE BROKEN. OTBD EXHAUST RISER BROKEN OFF CYLINDER ATTACH FLANGE. MUFFLER WAS LAYING ON LWR COWLING. INBD LWR COWLING HAD A BURN SPOT. OTBD HAD A HOLE BURNED TROUGH Oct 5, 2009 · N882FT · Piper PA44180SDR 2009FA0000468Shroud · chafedREMOVED ACFT MUFFLER (ATLEE DODGE PN 3241) TO PERFORM MUFFLER INSP AND FOUND THA THE HOSE CLAMP ON THE MUFFLER SHROUDS (ATLEE DODGE PN 3236) LEFT CABIN HEAT INLET PORT HAD WORN A NOTCH THRU THE ENGINE MOUNTS (PN 12351-15) LT LWR VERTICAL SUPPORT TUBING. A SMAMay 13, 2009 · N866MM · Cubcft CC18180SDR 2009FA0000268Muffler · failedDURING DESCENT TO LANDING THE PILOT EXPERIENCED A HIGH OIL TEMPERATURE FOLLOWED BY A HOT SMELL AND SMOKE ENTERING THE COCKPIT. ENGINE LOST POWER AS A RESULT OF THE (P) LEAD WIRE SHIELDING MELTING TO THE RT MAGNETO AND GROUNDING OUT.Apr 1, 2009 · N5920T · Cessna 150DSDR 2009FA0001024Baffle · mushroomedACFT WAS EXPERIENCING LARGE EGT DIFFERENCES BETWEEN THE RT AND LT CYL BANKS AT TAKEOFF AND CRUISE FLIGHT (BOTH FULL RICH AND LEAN OPERATIONS). ENG TREND MONITORING SHOWED THE DIFFERENCE GROWING SLOWLY OVER SEVERAL MONTHS TO MORE THAN 350F AT TAKEOFF FROM AN OMar 3, 2009 · N725JM · Bbavia 8KCABSDR 2009FA0000017Muffler · failedMUFFLER CAN BLOW OUT AT TAIL PIPE CONNECTION AND COLLECTOR FAILURES, BULGES AND BLOW OUTS. WEAK MATERIAL, USE THICKER AND BETTER MATERIAL. PEOPLE ARE GETTING SICK AND/OR BAD HEADACHES. CO DETECTORS ARE SOUNDING OFF IF YOU HAVE ONE. (K)Dec 23, 2008 · N1425K · Robsin R44RAVENIISDR CA081204010Muffler · cracked(CAN) DURING PREFLIGHT INSPECTION, A 2" CRACK IN THE END OF TAILPIPE WAS NOTED, RUNNING PARALLEL TO THE PIPE AXIS. THE CRACK APPEARS TO BE AT THE EDGE OF A HOT SPOT CAUSED BY THE WAY THE EXHAUST GASES FLOW OUT OF THE PIPE AND MAY HAVE BEEN A RESULT OF THERMAL Dec 1, 2008 · Cessna 172MSDR CA081204009Muffler · leaking(CAN) WHILE CARRYING OUT AD CF90-03R2 A SMALL LEAK WAS NOTED AT THE TOP OF THE EXHAUST PIPE JUNCTION WITH THE MUFFLER BODY. THIS IS A COMMON PLACE FOR THESE MUFFLERS TO FAIL.Dec 1, 2008 · Cessna 172MSDR S8Y2008F00001Muffler · warpedORIGINAL EQUIPMENT INSTALLED NEW AT FACTORY. FUND BY VISUAL INSPECTION AT THIRD 100 HR INSPECTION CYCLE. MUFFLER CONE/BAFFLE SAGGING AND WARPED. DOWN LOAD OF RECENT ENGINE DATA, EGT/CHT, SHOWS NO ANOMALIES THAT WOULD HAVE CAUSED DEFECT. (K)Nov 10, 2008 · N519SR · Cirrus SR22SDR CA081106005Baffle · failed(CAN) POWER LOSS ON TAKEOFF DUE TO BAFFLE FAILURE INSIDE MUFFLER WHICH RESTRICTED EXHAUST OF ENGINE CAUSING PARTIAL POWER LOSS.Oct 31, 2008 · Piper PA28180SDR 2008FA0000656Muffler · bulgedMUFFLER FOUND - BULGED - BLISTERED AND HEAT CRACKED AT TAILPIPE TRANSITION. (K)Sep 21, 2008 · N510KJ · Robsin R44RAVENIISDR 2008FA0000596Muffler · failedEND CAP SEPARATED (CLEAR BREAK) FROM MUFFLER CAR. FAILURE OCCURED IN THE BEND RADIAS OF END CAP. NOT IN THE END CAP TO MUFFLER CAP, WELD. (K)Aug 21, 2008 · N22355 · Cessna 150HSDR DXYA200800003Bolt · brokenPILOTS HAD REPORTED SLIGHT ROUGHNESS AT IDLE. DURING INSPECTION FOUND RT OB MUFFLER SUPPORT BRACKET UPPER ATTACH BOLT NR 2050012-1 BROKEN. THIS BOLT SUPPORTS BRACKET AS WELL AS NR 3 CYLINDER INTAKE TUBE. INTAKE TUBE LOOSE ALLOWING INDUCTION AIR LEAK AS WELLApr 1, 2008 · N34072 · Cessna 177RG
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