# NTSB investigations, KY: Airframe/component/system failure/malfunction

NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports.

## Latest cases

- [NTSB IAD04LA041](https://openairdocs.org/ntsb/IAD04LA041.md): Piper PA-28R-180 · London, KY · Accident · No injuries · Limited investigation · Final report · Aug 20, 2004 · N2330T · Substantial damage
  > An undocumented, improper repair attempt, which subsequently resulted in fatigue cracking to the rib cap.
- [NTSB IAD03CA068](https://openairdocs.org/ntsb/IAD03CA068.md): Aero Commander 100 · Fulton, KY · Accident · Minor injuries · Data collection · Final report · Jul 26, 2003 · N4103X · Destroyed
  > The malfunction of the brake system and the pilot's delay in aborting the landing.
- [NTSB NYC02IA097](https://openairdocs.org/ntsb/NYC02IA097.md): Bombardier CL600-2B19 · Covington, KY · Incident · No injuries · Incident investigation · Final report · May 8, 2002 · N709CA · No damage
  > The manufacturer's failure to provide inspection criteria for the BPSU compartment aileron control pulleys, which resulted in eventual pulley corrosion, and subsequent control stiffness when seized pulleys and water-soaked aileron cables froze together at…
- [NTSB NYC02LA071](https://openairdocs.org/ntsb/NYC02LA071.md): Cirrus Design SR-20 · Lexington, KY · Accident · Minor injuries · Limited investigation · Final report · Mar 16, 2002 · N244CD · Substantial damage
  > The pilot's failure to maintain aircraft control. Factors in this accident were the undetermined failure of the turn coordinator, as reported by the pilot, and the instrument meteorological conditions.
- [NTSB NYC01IA072](https://openairdocs.org/ntsb/NYC01IA072.md): Bombardier CL-600-2B19 · Covington, KY · Incident · No injuries · Incident investigation · Final report · Jan 3, 2001 · N933CA · Minor damage
  > Missing exhaust nozzle bolts for undetermined reasons. A factor was inadequate maintenance inspection of the affected area.
- [NTSB MIA01IA051](https://openairdocs.org/ntsb/MIA01IA051.md): Canadair CL-600-2B19 · Hebron, KY · Incident · No injuries · Incident investigation · Final report · Dec 26, 2000 · N729CA · No damage
  > The inadequate design of the flight compartment windshield by the windshield manufacturer resulting in cracking of the center ply.
- [NTSB NYC00IA116](https://openairdocs.org/ntsb/NYC00IA116.md): Israel Aircraft Industries 1125 · Pine Knot, KY · Incident · No injuries · Incident investigation · Final report · Apr 3, 2000 · N511WA · No damage
  > The partial failure of an inverter and the inadequate design of the electrical circuit breaker system.
- [NTSB NYC98LA172](https://openairdocs.org/ntsb/NYC98LA172.md): Ekstrom-Farrington Twinstar · Paducah, KY · Accident · No injuries · Limited investigation · Final report · Aug 25, 1998 · N72DE · Substantial damage
  > Failure of a through-bolt that attached the lateral control arms to the yoke assembly, due to unanticipated rotor brake forces through the flight control system.
- [NTSB NYC97FA178](https://openairdocs.org/ntsb/NYC97FA178.md): Cessna U206B · Gilbertsville, KY · Accident · 2 fatal · Field investigation · Final report · Sep 6, 1997 · N206KY · Destroyed
  > The improper repair of a float by maintenance personnel which resulted in the total failure of the float.
- [NTSB NYC97LA129](https://openairdocs.org/ntsb/NYC97LA129.md): Lockheed L-1011-385-1 · Covington, KY · Accident · Serious injuries · Limited investigation · Final report · Jun 27, 1997 · N723DA · No damage
  > the failure of the primary and secondary elevator driveshafts, and the failure of maintenance personnel to detect the failure of the primary shaft during scheduled inspections.
- [NTSB CHI97LA119](https://openairdocs.org/ntsb/CHI97LA119.md): Beech D35 · Lexington, KY · Accident · No injuries · Limited investigation · Final report · Apr 29, 1997 · N5985C · Substantial damage
  > flutter for an undetermined reason, which resulted in structural damage to the aft fuselage.
- [NTSB IAD97LA028](https://openairdocs.org/ntsb/IAD97LA028.md): Hughes 269C · Mayfield, KY · Accident · No injuries · Limited investigation · Final report · Dec 4, 1996 · N1105P · Substantial damage
  > disengagement of the main transmission aft pinion nut, allowing the tail rotor splined drive sleeve to disengage from the pinion, which resulted in loss of directional control and an emergency (autorotative) landing.
- [NTSB CHI97IA029](https://openairdocs.org/ntsb/CHI97IA029.md): Beech 1900D · Hopkensville, KY · Incident · No injuries · Incident investigation · Final report · Nov 17, 1996 · N841SK · Minor damage
  > the materials used in the new windshield, to meet new EPA requirements, were inadequate for the design.
- [NTSB BFO92FA144](https://openairdocs.org/ntsb/BFO92FA144.md): Hughes 269C · East Bernstadt, KY · Accident · 2 fatal · Field investigation · Final report · Sep 25, 1992 · N9609F · Destroyed
  > Inadequate maintenance inspection involving failure to detect wear of the clutch spring assembly, resulting in the uncoupling of engine power to the main transmission.
- [NTSB NYC92GA147](https://openairdocs.org/ntsb/NYC92GA147.md): Sikorsky S-76A · Graefenburg, KY · Accident · Serious injuries · Final report · Aug 7, 1992 · N50KY · Destroyed
  > An inadequate preflight inspection by the flight crew by failing to assure that all four of the engine cowling latches were properly secured, which resulted in subsequent failure of section ii of the tail rotor driveshaft after the cowling contacted the main…
- [NTSB NYC92LA097](https://openairdocs.org/ntsb/NYC92LA097.md): Piper PA-22-150 · Hazard, KY · Accident · No injuries · Limited investigation · Final report · Jun 2, 1992 · CGDNH · Substantial damage
  > The internal failure of the brake's master cylinder. Factors contributing to this accident were; the pilot's improperly planned approach and failure to touch down at the proper point.
- [NTSB BFO92LA055](https://openairdocs.org/ntsb/BFO92LA055.md): Piper PA-24-250 · Falmouth, KY · Accident · Minor injuries · Limited investigation · Final report · May 8, 1992 · N7851P · Substantial damage
  > The pilot misjudged the airplane's altitude and distance in reference to the runway. Contributing to the accident was the fuel system leak.
- [NTSB NYC92GA089](https://openairdocs.org/ntsb/NYC92GA089.md): Mcdonnell Douglas 500E · Mount Zion, KY · Accident · No injuries · Final report · Apr 30, 1992 · N97BR · Substantial damage
  > An in-flight separation of the tail rotor assembly as the result of the loss of an abrasion strip from the leading edge of one of the tail rotor blades, which induced vibrational stresses high enough to initiate fatigue failure in the tail rotor gear box…
- [NTSB BFO92LA047](https://openairdocs.org/ntsb/BFO92LA047.md): Bell 47G-2 · Pikeville, KY · Accident · No injuries · Limited investigation · Final report · Mar 24, 1992 · N2831B · Destroyed
  > Delamination and subsequent failure of a main rotor blade.
- [NTSB BFO92LA019](https://openairdocs.org/ntsb/BFO92LA019.md): Piper PA-46-350P · Bowling Green, KY · Accident · No injuries · Limited investigation · Final report · Jan 13, 1992 · N9161K · Substantial damage
  > The pilot's premature flare, stalling the airplane which resulted in a hard landing. Factors related to the accident were the dual fuel flow gauge failures and deteriorating weather conditions.
- [NTSB NYC92IA042](https://openairdocs.org/ntsb/NYC92IA042.md): Airbus Industrie A-310-324 · Covington, KY · Incident · No injuries · Incident investigation · Final report · Dec 7, 1991 · N819PA · No damage
  > The installation of an improper restrictor in the bleed air line by the manufacturer, which caused the rvdt to fail due to heat, and brought about the uncommanded power loss.
- [NTSB BFO91LA042](https://openairdocs.org/ntsb/BFO91LA042.md): Beech P35 · Gilbertsville, KY · Accident · No injuries · Limited investigation · Final report · Apr 3, 1991 · N1476G · Substantial damage
  > The pilot's failue to ensure the gear was fully extended during a precautionary landing after the loss of electrical power for undetermined reasons.
- [NTSB BFO90LA065](https://openairdocs.org/ntsb/BFO90LA065.md): Robinson R22 · Paducah, KY · Accident · No injuries · Limited investigation · Final report · Jul 27, 1990 · N9017S · Substantial damage
  > The loss of tail rotor thrust due to improper part installation.
- [NTSB ATL90IA060](https://openairdocs.org/ntsb/ATL90IA060.md): Douglas DC-9-31 · Louisville, KY · Incident · Minor injuries · Incident investigation · Final report · Jan 31, 1990 · N8978E · Minor damage
  > The disabling of the main landing gear torque link which allowed the truck to rotate freely. The torque link was disabled when excessive vibration was generated by excessive play of the torque link pins in their bushings.
- [NTSB ATL88DLQ01](https://openairdocs.org/ntsb/ATL88DLQ01.md): Byron/Sorrell SNS-2 · Morehead, KY · Accident · No injuries · Final report · Jun 8, 1988 · N112CB · Substantial damage
  > Inflight separation of both propeller blades from the acft for undetermined reasons.
- [NTSB ATL88MA053](https://openairdocs.org/ntsb/ATL88MA053.md): Hawker Siddeley HS-125-400A · Lexington, KY · Accident · 2 fatal · Major investigation · Final report · Dec 5, 1987 · N400PH · Destroyed
  > While en route at FL 370, the plts declared an emerg, rprtd a fire in the rgt eng & reqd vectors to the nearest suitablearpt. They were vectored twd the Lexington bluegrass arpt & clrd to dscnd. Shortly after declaring an emerg, the plts rprtd they secured…
- [NTSB ATL87IA083](https://openairdocs.org/ntsb/ATL87IA083.md): Saab-Fairchild SF340A · Covington, KY · Incident · No injuries · Incident investigation · Final report · Mar 10, 1987 · N341CA · Minor damage
  > After a hydraulic sys malfunction, the capt returned to arpt to exchange acft. Company plt had completed day of flying and was asked to taxi acft to maint hangar. Departing capt was in process of manually pumping hyd sys to sufficient pressure to ensure…
- [NTSB CHI87IA047](https://openairdocs.org/ntsb/CHI87IA047.md): Fairchild SA226TC · Paducah, KY · Incident · No injuries · Incident investigation · Final report · Dec 11, 1986 · N323BA · Minor damage
  > Just after the beginning of a descent for landing a rudder cable failed completely, rendering the rudder inoperative. The aircraft landed uneventfully. Metallurgical analysis revealed that the cable wore severely until it failed. Following an examination of…
- [NTSB ATL86LA255](https://openairdocs.org/ntsb/ATL86LA255.md): Cessna T310R · Louisville, KY · Accident · No injuries · Limited investigation · Final report · Sep 12, 1986 · N6171X · Substantial damage
  > The plt was on a VFR cross country flt when the left eng began to run rough. He diverted to bowman field and made a precautionary landing where he left the aircraft with a FBO to be repaired. Examination showed that the overboard dump part of the exhaust…
- [NTSB ATL86FLQ06](https://openairdocs.org/ntsb/ATL86FLQ06.md): Bernard Sonerai II · Trenton, KY · Accident · 1 fatal · Final report · Aug 5, 1986 · N325WB · Destroyed
  > Witnesses reported seeing the acft spin to ground impact with a section of the right wing hanging. Post accident exam revealed the outboard half (aprx 4 ft) of the right wing was bent aprx 120 degrees to the inside half of the right wing. Monnett experimental…
- [NTSB ATL86FLQ03](https://openairdocs.org/ntsb/ATL86FLQ03.md): Piper PA-28RT-201T · Hopkinsvile, KY · Accident · Minor injuries · Final report · Oct 23, 1985 · N8277Y · Substantial damage
  > The acft had electrical failure during an IFR flt and radio/radar contact was lost. The plt said he was in & out of the clouds during the final stages or the x-country flt. The cloud ceiling was about 800 ft where he finally descended & landed in a soybean…
- [NTSB ATL85FA216](https://openairdocs.org/ntsb/ATL85FA216.md): Bell 206B · Anneville, KY · Accident · No injuries · Field investigation · Final report · Jul 15, 1985 · N16646 · Substantial damage
  > The pilot stated that the aircraft experienced hydraulic system failure followed by a loss of engine power. An emergency autorotation landing was attempted in a pasture and during the landing the aircraft was substantially damaged. Post crash examination…
- [NTSB ATL84FA173](https://openairdocs.org/ntsb/ATL84FA173.md): Boeing 727 · Covington, KY · Accident · Serious injuries · Field investigation · Final report · May 17, 1984 · N723RW · No damage
  > After leveling at FL330, the #2 eng fire warning light & bell activated. The crew followed the published procedures, shut down the eng & used a fire bottle. They then diverted to cincinnati & made a precautionary landing. After landing, fire dept personnel…
- [NTSB ATL83LA103](https://openairdocs.org/ntsb/ATL83LA103.md): Hughes 369HS · Paducah, KY · Accident · No injuries · Limited investigation · Final report · Feb 15, 1983 · N3280K · Substantial damage
  > The acft was damaged during an autorotation into an open field after a chip detector light illuminated. The chip light is used for detecting metal in the transmission, engine and tail rotor gear box. Examination of the transmission revealed metal particles on…
- [NTSB ATL83LA082](https://openairdocs.org/ntsb/ATL83LA082.md): Cessna T210L · Horse Cave, KY · Accident · No injuries · Limited investigation · Final report · Jan 5, 1983 · N1741X · Substantial damage
  > The pilot reported that he encountered turbulence, and at about the same time, the engine began running rough. He began troubleshooting and discovered that the roughness was directly proportional to throttle movement; when the throttle was advanced, the…
- [NTSB ATL82DA272](https://openairdocs.org/ntsb/ATL82DA272.md): Cessna 172RG · Prospect, KY · Accident · No injuries · Final report · Sep 13, 1982 · N5115U · Substantial damage
  > The plt was returning to his departure point due to encountering rough wx. While descending to 4,000 ft for an ILS approach the plt experienced a total electrical failure. The plt elected to descend to VFR conditions & broke out about 100 ft AGL. The plt…
- [NTSB ATL82FLQ07](https://openairdocs.org/ntsb/ATL82FLQ07.md): KR-2 · Mcwhorter, KY · Accident · Serious injuries · Final report · Jul 1, 1982 · N27JK · Destroyed
  > This was a home built aircraft that was equipped with an uncertificated, variable pitch, propeller. During flight, a propeller blade separated and the plane was substantially damaged when a forced landing was made on upward sloping terrain. The aircraft and…
- [NTSB ATL82DA115](https://openairdocs.org/ntsb/ATL82DA115.md): Piper PA-23 · Louisville, KY · Accident · No injuries · Final report · Apr 25, 1982 · N1227P · Substantial damage
  > The pilot stated that during level flight at 9000 ft, he noticed smoke coming from under the instrument panel, followed by a vibration for 15 to 20 seconds. He diverted and landed at Louisville, KY without further incident. An examination revealed that the…

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
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."eventStateOrRegion" = 'KY' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT o.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o."occurrenceNumber" = 1 AND o."occurrenceCode" = 130)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?occurrence=130&state=KY

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