NTSB investigations: Lycoming HIO-360 series

23 cases on aircraft whose registry engine model is Lycoming HIO-360 series, where the first occurrence was “Loss of engine power”. 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

19862026
NTSB investigations: Lycoming HIO-360 series per year, 1986–2026: 23 cases
19861
19882
19891
19901
19941
19961
19973
19982
20012
20032
20041
20051
20061
20074

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 ('41524')
      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\" = 350))
  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 SEA08LA035Accident · Serious injuriesLimited investigationFinal reportSchweizer 269C · Newberg, ORThe student pilot's inadvertent application of the fuel shut off valve during flight. Contributing to the accident were the locations of the heater and fuel shutoff controls.Nov 21, 2007 · N61480 · Substantial damageNTSB LAX07CA267Accident · Minor injuriesData collectionFinal reportHughes 269C · Ramona, CAa loss of engine power for undetermined reasons.Sep 3, 2007 · N58332 · Substantial damageNTSB MIA07CA103Accident · Serious injuriesData collectionFinal reportHughes 269A · Las Piedras, PRThe failure of the non-certificated pilot to maintain a proper rate of descent during the autorotative landing following a reported loss of engine power for undetermined reasons, resulting in a hard landing.May 29, 2007 · N63HD · Substantial damageNTSB DFW07LA061Accident · Minor injuriesLimited investigationFinal reportHughes 269A · Fulshear, TXThe loss of engine power for undetermined reasons. A contributing factor was the lack of suitable terrain for the forced landing.Jan 27, 2007 · N8503A · Substantial damageNTSB ATL06LA085Accident · No injuriesLimited investigationFinal reportHughes 269A · Concord, NCThe loss of engine power for undetermined reasons while maneuvering, resulting in a forced landing to uneven terrain and a roll over.May 26, 2006 · N269RS · Substantial damageNTSB DEN05FA080Accident · Serious injuriesField investigationFinal reportSchweizer 269C · Pueblo, COthe flight instructor's failure to maintain control of the helicopter during the attempted autorotation after the loss of engine power for reasons undetermined. Contributing factors include the flight instructor's improper preflight planning, the high density…Jun 15, 2005 · N311CP · DestroyedNTSB SEA04LA128Accident · No injuriesLimited investigationFinal reportHughes 269C · Arlington, WAA significant power loss for undetermined reasons while in cruise flight, leading to a full autorotational landing. Factors include no suitable terrain in the area, and soft swampy terrain at the point where the pilot found it necessary to perform the forced…Jul 10, 2004 · N56PH · Substantial damageNTSB FTW03TA190Accident · Minor injuriesFinal reportHughes 269A · Freer, TXLoss of engine power for undetermined reasons.Jul 30, 2003 · N81170 · Substantial damageNTSB LAX03FA060Accident · 1 fatalField investigationFinal reportSchweizer 269C · Collinsville, CAA loss of engine power for undetermined reasons, and the pilot's failure to maintain main rotor rpm during the subsequent autorotation. A factor in the accident was the unsuitable nature of the terrain for a forced landing.Jan 4, 2003 · N98TH · DestroyedNTSB CHI01LA215Accident · Minor injuriesLimited investigationFinal reportSchweizer 269C · Walker, MNthe loss of engine power for undetermined reasons during takeoff. Factors were the vehicles, the unsuitable terrain the pilot encountered, and the low altitude of the helicopter at the time of the loss of engine power.Jul 15, 2001 · N61434 · Substantial damageNTSB LAX01LA121Accident · Minor injuriesLimited investigationFinal reportSchweizer 269C · Ojai, CAA loss of engine power for undetermined reasons.Mar 19, 2001 · N6123A · Substantial damageNTSB MIA98LA221Accident · No injuriesLimited investigationFinal reportEnstrom F-28F · Marco Island, FLThe pilot's inadequate fuel management which led to fuel exhaustion. A related factor was the pilot's improper use of the flight controls during autorotation.Aug 12, 1998 · N19BZ · Substantial damageNTSB FTW98LA084Accident · No injuriesLimited investigationFinal reportHughes 269C · Riviera, TXThe total loss of engine power due to a fatigue failure of the crankshaft for undetermined reason. A factor was the lack of suitable terrain for the forced landing.Jan 2, 1998 · N1091Y · Substantial damageNTSB SEA98LA021Accident · No injuriesLimited investigationFinal reportEnstrom F-28F · John Day, ORa loss of engine power for undetermined reasons.Dec 6, 1997 · N171HH · Substantial damageNTSB ATL97LA067Accident · No injuriesLimited investigationFinal reportHughes 269A · Lake Wales, FLloss of engine power for undetermined reason(s); and the flight instructor's improper flare and improper use of the flight controls, while flaring for an autorotative landing.May 1, 1997 · N37754 · Substantial damageNTSB MIA97LA103Accident · Serious injuriesLimited investigationFinal reportHughes TH-55 · Cullman, ALa loss of engine power for undetermined reasons and the pilot-in-command's failure to maintain control of the helicopter. Factors in this accident were: an improper autorotation as a result of improper collective use and resulting failure to maintain main…Mar 28, 1997 · N818D · Substantial damageNTSB SEA97FA003Accident · No injuriesField investigationFinal reportEnstrom F-28C · Spokane, WAa loss of engine power for undetermined reasons.Oct 5, 1996 · N574H · Substantial damageNTSB LAX94LA201Accident · No injuriesLimited investigationFinal reportSchweizer 300C · Pacific Ocean (Pacific Ocean)The low altitude of the aircraft when the engine lost power and the pilot's misjudgement of the flare point during the autorotation. Factors in the accident were the loss of engine power and the sunglare.Apr 10, 1994 · N60718 · Substantial damageNTSB FTW90LA074Accident · No injuriesLimited investigationFinal reportHughes 269C · Houma, LALoss of engine power for an unknown reason.Feb 24, 1990 · N7504A · Substantial damageNTSB BFO89LA054Accident · No injuriesLimited investigationFinal reportHughes 269C · Baltimore, MDThe pilot landed on unsuitable soft terrain which caused the landing skid to sink into the ground. This resulted in a landing skid overload failure and nose over of the helicopter. Contributing to the accident was the soft terrain.Jul 1, 1989 · N1113Z · Substantial damageNTSB LAX89LA044Accident · No injuriesLimited investigationFinal reportEnstrom F-28C · Inyokern, CAThe pilot stated that, 'I landed in an open unpopulated area for the mechanic ... To make adjustments on the main blade (we were tracking and balancing the blades). I never shut the engine down. I disengaged the clutch. After the adjustment was made, I…Nov 16, 1988 · N552CS · DestroyedNTSB CHI88DEE07Accident · No injuriesFinal reportHughes 269C · Sandwich, ILThe plt rprtd that while he was conducting spraying opns, he noted a significant loss of eng power. He made a run-on landing in a bean field. As he landed, the left skid dug into a furrow & the helicopter rolled over. During the investigation, which included…Jul 21, 1988 · N7425F · Substantial damageNTSB NYC86LA113Accident · No injuriesLimited investigationFinal reportEnstrom F-28C · Ridgefield Park, NJA weight imbalance, then a split needle, caused the plt to abort 2 previous attempts to depart. Conditions were corrected & the helicopter departed the waterfront helipad. As it went over the water, the plt noted a loss of eng power. He tried to return to the…Apr 27, 1986 · N60PB · Substantial damage