NTSB investigations: Lycoming IO-540 series

44 cases on aircraft whose registry engine model is Lycoming IO-540 series, where the first occurrence was “Airframe/component/system failure/malfunction”. Aircraft are matched to the registry by N-number and event date, checked against the reported serial number, make and model, so older matches can be wrong.

Cases per year

19832026
NTSB investigations: Lycoming IO-540 series per year, 1983–2026: 44 cases
19831
19842
19851
19863
19881
19891
19921
19934
19952
19962
19971
19982
19991
20003
20013
20022
20034
20044
20051
20063
20072

Latest cases

Query with SQL
duckdb -csv -c "SELECT c.\"ntsbNumber\", c.\"eventDate\", c.\"eventType\", c.\"eventCity\", c.\"eventStateOrRegion\", a.n_number, a.\"aircraftMake\", a.\"aircraftModel\", c.\"highestInjuryLevel\", c.\"totalFatal\", c.\"completionStatus\", c.report_url
  FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c.\"mKey\" AND a.position = 1
  WHERE c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41530', '41585')
      AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o.\"occurrenceNumber\" = 1 AND o.\"occurrenceCode\" = 130))
  ORDER BY c.\"eventDate\" DESC, c.\"ntsbNumber\" 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.

NTSB NYC07LA104Accident · No injuriesLimited investigationFinal reportPiper PA-32-300 · Richmond, VAThe improper installation of the right brake assembly by maintenance personnel.Apr 25, 2007 · N679DM · Substantial damageNTSB DEN07FA079Accident · 2 fatalField investigationFinal reportRobinson R44 II · Ponte Vedra Bch, FLthe mechanic's improper installation of the attachment hardware for the servo to swashplate push-pull tube joint which resulted in a disconnection, subsequent loss of control, and impact with terrain. Contributing factors were the company management's…Mar 27, 2007 · N744SH · DestroyedNTSB LAX06LA228Accident · No injuriesLimited investigationFinal reportPalmer Seawind 3000 · Havasu Lake, CAan electrical fire due to improper wiring of the electrical system by other maintenance personnel.Jul 11, 2006 · N8025Q · DestroyedNTSB CHI06CA125Accident · No injuriesData collectionFinal reportBangham Barracuda · Monett, MORupture of the hydraulic hose and deformation of the hydraulic cylinder piston rods for undetermined reasons, which resulted in a failure of the landing gear extension system. Contributing factors were the pilot's premature shutdown of the engine on short…May 5, 2006 · N91LB · Substantial damageNTSB ATL06CA073Accident · No injuriesData collectionFinal reportRobinson R44 Raven II · Rocky Point, NCThe pilot's inadequate visual lookout during a precautionary landing which resulted in an in-flight collision with a transmission wire.May 3, 2006 · N288RH · Substantial damageNTSB ANC05FA039Accident · Serious injuriesField investigationFinal reportPiper PA-32-300 · Dunnellon, FLThe improper installation of the bolt that connects the throttle linkage to the fuel control arm by an unknown maintenance person, which resulted in a loss of the bolt, a loss of engine rpm control, and subsequent forced landing and collision with trees.Mar 2, 2005 · N444NM · DestroyedNTSB LAX04LA253Accident · 1 fatalLimited investigationFinal reportAnderson Harmon Rocket II · Seal Beach, CAthe in-flight separation of the elevator, which resulted in a loss of airplane control and an uncontrolled descent. The underlying cause and mechanism of the elevator separation could not be determined.Jul 7, 2004 · N28BE · DestroyedNTSB CHI04CA159Accident · Serious injuriesData collectionFinal reportBracken CB540 · Lapeer, MIThe pilot's loss of control due to an undetermined flight control system malfunction. Contributing factors to the accident were the wires and trees.Jun 19, 2004 · N5439N · DestroyedNTSB ATL04LA126Accident · Serious injuriesLimited investigationFinal reportPiper PA 32R-301 · Baxley, GAThe mechanical malfunction of the autopilot pitch servo, and the pilot's inability to maintain adequate control pressure to manually retrim the pitch attitude.Jun 14, 2004 · N8451E · Substantial damageNTSB ATL04LA065Accident · No injuriesLimited investigationFinal reportAero Commander 500 · Allendale, SCThe failure of the hydraulic brake system accumulator due to a ruptured diaphragm. A factor was the ditch.Jan 11, 2004 · N800SL · Substantial damageNTSB FTW04LA001Accident · Serious injuriesLimited investigationFinal reportBratton Experimental Homebuilt Swearingen SX300 · Floresville, TXThe separation of one propeller blade while in cruise flight. A factor contributing to the accident was the lack of suitable terrain for the forced landing.Oct 2, 2003 · N301SX · Substantial damageNTSB CHI03LA314Accident · No injuriesLimited investigationFinal reportCessna 182S · Joliet, ILThe pilot not performing a go-around when the other airplane taxied onto the landing runway, which resulted in the pilot not attaining the proper touchdown point. Factors to the accident include the failure of the alternator, the complete loss of electrical…Sep 21, 2003 · N775WB · Substantial damageNTSB SEA03LA066Accident · No injuriesLimited investigationFinal reportMaule MX-7-235 · Plummer, IDThe jamming of the left parking brake locking tab on a burr on the left brake master cylinder activation rod during the landing roll, resulting in the left brake becoming locked in a position where excessive braking was applied.Apr 20, 2003 · N114MK · Substantial damageNTSB LAX03LA123Accident · No injuriesLimited investigationFinal reportRobinson R-44 II · Willcox, AZThe failure of the alternator belt which resulted in the failure of the main drive belt.Apr 2, 2003 · N233TR · Substantial damageNTSB FTW03LA061Accident · 1 fatalLimited investigationFinal reportCreekmore Team Rocket F-1 · Rosenberg, TXThe in-flight separation of the vertical stabilizer as a result of the builder's failure to install the upper attachment fitting for the vertical fin aft spar.Dec 20, 2002 · N140TC · DestroyedNTSB ANC02LA069Accident · Minor injuriesLimited investigationFinal reportPiper PA-32-300 · Kake, AKThe in-flight separation of the upper engine cowling from the airplane. A factor contributing to the accident was the soft, sandy terrain of the landing area.Jun 25, 2002 · N2947N · Substantial damageNTSB CHI02LA022Accident · No injuriesLimited investigationFinal reportSmith Aerostar 601 · Danville, ILThe separation of the main landing gear scissor assembly during landing for undetermined reasons, resulting in the directional control of the airplane not being possible.Nov 8, 2001 · N128AC · Substantial damageNTSB LAX02LA015Accident · No injuriesLimited investigationFinal reportThomson Harmon Rocket II · Perris, CAthe airplane builder's failure to properly install a bolt and nut into the aileron and elevator flight control system. A contributing factor was the soft terrain conditions for the ensuing forced landing.Oct 27, 2001 · N325L · Substantial damageNTSB ATL01LA029Accident · Minor injuriesLimited investigationFinal reportRobert D. Wood Velocity Xlfg · Sebastian, FLThe manufacturer's inadequate design of the winglet/rudder assembly, and inadequate bonding techniques for metal to fiber structures, which resulted in control surface flutter.Feb 3, 2001 · N658SE · Substantial damageNTSB LAX01LA045Accident · Serious injuriesLimited investigationFinal reportCollette Glassair III · Guistine, CAMaintenance personnel misrouted the crankcase breather hose so that it was pinched when the cowling was installed. This pressurized the crankcase displacing the oil seal and forcing oil out of the engine. A factor was the unsuitable terrain encountered during…Nov 19, 2000 · N540AK · Substantial damageNTSB MIA00LA219Accident · Minor injuriesLimited investigationFinal reportPiper PA-32-300 · Washington, NCThe inadvertent stall by the pilot-in-command while returning for a precautionary landing. Contributing to the accident was the loose engine cowling.Jul 16, 2000 · N2947A · Substantial damageNTSB CHI00LA189Accident · No injuriesLimited investigationFinal reportStaudacher S-300D2 · Kenosha, WIThe fatigue failure of the rod end bearing and the separation of the aileron. A factor was the inadequate design change by the aircraft designer.Jul 7, 2000 · N112KG · Substantial damageNTSB SEA99LA131Accident · No injuriesLimited investigationFinal reportPiper PA-23-250 · Snohomish, WABrake system failure due to the presence of air bubbles in the hydraulic fluid.Jul 12, 1999 · N65PR · Substantial damageNTSB FTW99LA034Accident · Serious injuriesLimited investigationFinal reportStanton Staros SA 260 · Marion, TXThe fuel leak for an undetermined reason which resulted in an in-flight fire.Nov 24, 1998 · N540HC · DestroyedNTSB FTW98LA303Accident · Serious injuriesLimited investigationFinal reportPiper PA-60-602P · Beaumont, TXThe pilot's failure to maintain control of the airplane while attempting to return to the airport. Factors were the open baggage compartment door and the pilot's diverted attention to the open door.Jul 7, 1998 · N6898Y · Substantial damageNTSB IAD97LA044Accident · No injuriesLimited investigationFinal reportAerospatiale TB-20 · University Park, PAthe pilot's inability to control the airplane due to a damaged/bent elevator control lever and resultant lack of elevator authority.Jan 18, 1997 · N2803A · Substantial damageNTSB CHI96LA317Accident · Serious injuriesLimited investigationFinal reportPiper PA-32R-301 · Stewartville, MNthe pilot's improper in-flight planning/decision, which resulted in a failure to reach the proper touchdown point for the landing. The fractured nose gear shimmy damper attaching collar and the jammed nose gear were related factors.Aug 26, 1996 · N801SP · Substantial damageNTSB ATL96LA045Accident · No injuriesLimited investigationFinal reportPiper PA-32-RT-300 · Blountville, TNInadequate maintenance, and subsequent in-flight separation of the cowling, due to worn cowling components.Feb 7, 1996 · N2200J · Substantial damageNTSB FTW95LA355Accident · No injuriesLimited investigationFinal reportPiper PA-32R-300 · Fayetteville, ARThe pilot's inability to extend the landing gear due to the failure of an emergency gear extension valve.Aug 19, 1995 · N47423 · Substantial damageNTSB MIA95LA061Accident · No injuriesLimited investigationFinal reportGlassair III · Boynton Beach, FLa violent shimmy of the nose gear for undetermined reason(s), which resulted in an on-ground loss of directional control and a subsequent nose over.Jan 22, 1995 · N300FF · Substantial damageNTSB BFO93FA107Accident · Serious injuriesField investigationFinal reportUS/Lta 138S Airship · New York, NYInadequate design of, and design standards for, the airship which resulted in an envelope failure following separation of a portion of the night sign equipment.Jul 4, 1993 · N832US · DestroyedNTSB LAX93IA235Incident · No injuriesIncident investigationFinal reportUS/Lta 138-S · Santa Maria, CAInadequate specifications in the design and manufacture of a rudder control tube rod end bearing by the airship manufacturer.May 25, 1993 · N832US · Minor damageNTSB ANC93LA036Accident · No injuriesLimited investigationFinal reportMaule M5 · Chena Hot Sprng, AKThe total failure of the landing gear axle as a result of a pre existing fracture in the axle.Feb 20, 1993 · N9176E · Substantial damageNTSB ATL93LA050Accident · No injuriesLimited investigationFinal reportPiper PA-32R-301 · Goldsboro, NCThe pilot's improper decision in attempting a night landing at an airport without operating runway lights which resulted in a touchdown off the runway. Factors which contributed to the accident were: an airplane lighting malfunction for an undetermined…Jan 14, 1993 · N8409A · Substantial damageNTSB CHI92FA267Accident · 1 fatalField investigationFinal reportPiper PA-61-601P · Aurora, INExceeding the design stress limits of the airplane by the pilot in command.Sep 8, 1992 · N717BB · DestroyedNTSB NYC90FA040Accident · 1 fatalField investigationFinal reportPiper PA-60-602P · Frenchtown, NJThe inadequate maintenance and inspection of the turbocharger tailpipe exhaust stack on the right engine by the mechanic(s). The failure of the tailpipe permitted heat from the exhaust to weaken the main spar of the right wing resulting in a catastrophic…Dec 21, 1989 · N6894Y · DestroyedNTSB MIA88LA204Accident · No injuriesLimited investigationFinal reportPiper PA-32-300 · Fort Myers, FLWhile en route, on a personal cross country flt, the alternator belt broke resulting in the loss of electrical power which the plt did not recognize before the battery had been drained. During the precautionary landing the acft landed hard resulting in…Apr 17, 1988 · N2032M · Substantial damageNTSB NYC86FHD03Accident · 1 fatalFinal reportPassonno Skybolt · Moorestown, NJThe Passonno skybolt was observed to recover from a loop and then the tail surfaces started to shake. The acft then descended to the ground and was destroyed by impact. Examination of various horizontal stabilizer and elevator components showed that the…Aug 27, 1986 · N8FP · DestroyedNTSB MKC86LA120Accident · No injuriesLimited investigationFinal reportEagle DW-1 · Corning, ARThe plt was making his second flt in this acft when the accident occurred. He failed to lock the cockpit canopy before start of takeoff roll. During the takeoff roll the canopy opened and separated from the acft. The plt diverted his attention from flying the…May 29, 1986 · N8814M · Substantial damageNTSB CHI86FEM05Accident · No injuriesFinal reportEagle DW-1 · Baroda, MIThe plt shut down the acft engine after noticing oil on the canopy and a loss of oil pressure. A forced landing was performed in a corn field and the acft nosed over. Post accident inspection disclosed the oil pressure hose had ruptured.May 23, 1986 · N8807Z · Substantial damageNTSB CHI86LA021Accident · No injuriesLimited investigationFinal reportEagle DW-1 · Bangor, MIThe acft nosed over after landing on a grass landing strip. The pilot stated the tail came up and the aircraft flipped over on its back after left brake was applied. An examination of the landing gear and brakes revealed that the right brake was released but…Oct 30, 1985 · N8807Z · Substantial damageNTSB DEN84LA215Accident · No injuriesLimited investigationFinal reportEagle DW-1 · Marion, SDIn cruise flt, oil covered the windscreen and plt elected a precautionary landing on a dirt road. Acft collided with a mailbox on roll out and nosed over. Oil filler cap found loose.Jun 25, 1984 · N8802R · Substantial damageNTSB CHI84LA231Accident · No injuriesLimited investigationFinal reportEagle DW-1 · Oklee, MNThe acft ran off a road into a ditch which destroyed the main landing gear during the forced landing. The plt said oil covered the windshield after takeoff and he could not see well enough to find the airstrip so he landed on the road while looking out the…Jun 12, 1984 · N8801P · Substantial damageNTSB ANC83LA046Accident · No injuriesLimited investigationFinal reportPiper PA-32-301 · Nondalton, AKThe plt reported that during a landing on an ice & snow covered rwy, the braking was poor & he was using pumping actions while applying the brakes. Reportedly, when the acft was about half way down the rwy, the left brake lost all pressure. At about the same…Jan 17, 1983 · N8429N · Substantial damage