# NTSB investigations, IA: 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 CHI07LA011](https://openairdocs.org/ntsb/CHI07LA011.md): Cessna R182 · Ames, IA · Accident · No injuries · Limited investigation · Final report · Oct 22, 2006 · N5274S · Substantial damage
  > The fatigue failure of the landing gear actuator pin and the exterior visual maintenance inspection for cracks not possible by company maintenance personnel.
- [NTSB CHI05LA047](https://openairdocs.org/ntsb/CHI05LA047.md): Learjet 25B · Cedar Rapids, IA · Accident · No injuries · Limited investigation · Final report · Dec 20, 2004 · N252BK · Substantial damage
  > The pilot was not able to maintain directional control of the airplane due to the failure of the nose gear strut seal which prevented the nose wheel from centering. A factor associated with the accident was the berm that the airplane contacted.
- [NTSB CHI04LA183](https://openairdocs.org/ntsb/CHI04LA183.md): Cessna 340A · Mason City, IA · Accident · No injuries · Limited investigation · Final report · Jul 9, 2004 · N60PP · Substantial damage
  > The proper touchdown point not obtain/maintained by the pilot following a single-engine approach to landing. Contributing factors were the vacuum pump oil leak, the low oil pressure of the propeller control system, and the unfeathered propeller.
- [NTSB CHI02LA293](https://openairdocs.org/ntsb/CHI02LA293.md): Hughes 269A · Council Bluffs, IA · Accident · No injuries · Limited investigation · Final report · Sep 24, 2002 · N1040S · Substantial damage
  > The premature fracture of the cyclic/mixture bracket resulting in the inability to conduct a landing flare.
- [NTSB CHI02FA292](https://openairdocs.org/ntsb/CHI02FA292.md): Piper PA-24-260 · Ankeny, IA · Accident · 1 fatal · Field investigation · Final report · Sep 24, 2002 · N8782P · Destroyed
  > The pilot applied an excessive angle of bank and failed to maintain terrain clearance. An additonal factor was the pilot's attention being diverted.
- [NTSB CHI02LA286](https://openairdocs.org/ntsb/CHI02LA286.md): Bailey DSA-1 · Washington, IA · Accident · Serious injuries · Limited investigation · Final report · Sep 16, 2002 · N304MB · Substantial damage
  > The selection of unsuitable terrain and the failure of the oil pressure gage line. Factors were, the pilot/owners failure to obtain an annual condition inspection, and the corn crop.
- [NTSB CHI99IA136](https://openairdocs.org/ntsb/CHI99IA136.md): McDonnell Douglas DC-9-32 · Dubuque, IA · Incident · No injuries · Incident investigation · Final report · Apr 9, 1999 · N205ME · No damage
  > the frozen elevator control. Factors to the incident were the rain and the low temperature.
- [NTSB CHI99LA045](https://openairdocs.org/ntsb/CHI99LA045.md): Beech 58 · Ankeny, IA · Accident · Minor injuries · Limited investigation · Final report · Dec 3, 1998 · N7278R · Substantial damage
  > the elevator control system jammed for undetermined reasons.
- [NTSB CHI99LA012](https://openairdocs.org/ntsb/CHI99LA012.md): Hiller UH-12C · Clinton, IA · Accident · No injuries · Limited investigation · Final report · Oct 24, 1998 · N9739C · Substantial damage
  > the failure of the 90 degree gearbox for reasons undetermined. Factors were the failure of the gearbox, and it not being possible for the pilot to maintain control of the aircraft.
- [NTSB CHI98FA323](https://openairdocs.org/ntsb/CHI98FA323.md): Bell 222 · Spencer, IA · Accident · 3 fatal · Field investigation · Final report · Aug 21, 1998 · N30SV · Destroyed
  > The below standard (loose) fit of the 'white' swashplate outer ring pin resulting in fatigue and subsequent separation of the pin, and ultimately the in-flight breakup of the rotorcraft. A factor was the manufacturer's dissemination of the pin which did not…
- [NTSB CHI97LA266](https://openairdocs.org/ntsb/CHI97LA266.md): Swearingen SA226TC · Des Moines, IA · Accident · Minor injuries · Limited investigation · Final report · Aug 20, 1997 · N224AM · Substantial damage
  > the pilot's improper in-flight planning/decision and failure to perform the emergency procedure for shut-down of the right engine. Factors relating to the accident were: the power lever cable became disconnected from the fuel control unit, due to improper…
- [NTSB CHI97IA072](https://openairdocs.org/ntsb/CHI97IA072.md): McDonnell Douglas DC-9-15 · Des Moines, IA · Incident · No injuries · Incident investigation · Final report · Feb 20, 1997 · N93S · Minor damage
  > the cross tie relay shorted resulting in a fire in the left main electrical equipment rack.
- [NTSB CHI96LA011](https://openairdocs.org/ntsb/CHI96LA011.md): McDonnell Douglas DC-9-31 · Cedar Rapids, IA · Accident · No injuries · Limited investigation · Final report · Oct 14, 1995 · N945AX · Substantial damage
  > inadequate installation of a thrust reverser, driver linkage arm pivot bolt and nut, which resulted in the nut and bolt becoming disconnected. A factor relating to the accident was: the manufacturer's unclear information regarding the type and number of…
- [NTSB CHI93DCD02](https://openairdocs.org/ntsb/CHI93DCD02.md): Piper PA-25 · Essex, IA · Accident · 1 fatal · Final report · May 21, 1993 · N6453Z · Destroyed
  > Fatigue failure of the forward spar fuselage attachment assembly for the right wing. A factor related to the accident was: the lack of a directed inspection procedure that could have been provided with the issuance of an airworthiness directive.
- [NTSB DCA93GA042](https://openairdocs.org/ntsb/DCA93GA042.md): Mitsubishi MU-2B-60 · Zwingle, IA · Accident · 8 fatal · Class 1 · Final report · Apr 19, 1993 · N86SD · Destroyed
  > The fatigue cracking and fracture of the propeller hub arm. The resultant separation of the hub arm and the propeller blade damaged the engine, nacelle, wing, and fuselage, thereby causing significant degradation to aircraft performance and control that made…
- [NTSB CHI92DCD08](https://openairdocs.org/ntsb/CHI92DCD08.md): John Schackel Q2 · Rutland, IA · Accident · Minor injuries · Final report · Jul 4, 1992 · N84JS · Substantial damage
  > A fatigue failure of the engine crankshaft during cruise flight.
- [NTSB CHI92DCD01](https://openairdocs.org/ntsb/CHI92DCD01.md): Raymond Bristow Rand KR-2 · Boone, IA · Accident · 1 fatal · Final report · Feb 3, 1992 · N1066 · Destroyed
  > Failure of the pilot to maintain aircraft control. A factor in the accident is total failure of the airplane canopy.
- [NTSB CHI92LA085](https://openairdocs.org/ntsb/CHI92LA085.md): Piper PA-32R-300 · Cedar Rapids, IA · Accident · No injuries · Limited investigation · Final report · Feb 2, 1992 · N427KP · Substantial damage
  > A result of the pilot-in-command not understanding the airplanes emergency procedures and not performing the appropriate emergency procedures. A factor associated with the accident was an electrical system failure.
- [NTSB CHI91LA263](https://openairdocs.org/ntsb/CHI91LA263.md): Beech 36 · Davenport, IA · Accident · No injuries · Limited investigation · Final report · Aug 15, 1991 · N25496 · 2 aircraft · Substantial damage
  > The inadequate visual lookout and poor inflight planning and decision making by the pilot of N97867. Factors in the accident are inoperative exterior lights and radio communication not possible.
- [NTSB CHI91DCD01](https://openairdocs.org/ntsb/CHI91DCD01.md): Heal SONERAI-I · Davenport, IA · Accident · 1 fatal · Final report · Jun 23, 1991 · N4227N · Destroyed
  > Failure of the wing spar straps, as the aircraft was being maneuvered around a pylon in an air race.
- [NTSB CHI91IA058](https://openairdocs.org/ntsb/CHI91IA058.md): Boeing B727-223 · Des Moines, IA · Incident · Minor injuries · Incident investigation · Final report · Jan 4, 1991 · N6821 · No damage
  > An oil leak originating from the auxiliary power unit which created smoke in the passenger cabin after it passed through the air conditioning/heating system equipment and associated duct work.
- [NTSB MKC90LA145](https://openairdocs.org/ntsb/MKC90LA145.md): Monnett Sonerai II · Cherokee, IA · Accident · Minor injuries · Limited investigation · Final report · Jul 13, 1990 · N2MX · Substantial damage
  > Aircraft control not maintained by the pilot in command.
- [NTSB CHI90IA070](https://openairdocs.org/ntsb/CHI90IA070.md): Boeing B737-300 · Cedar Rapids, IA · Incident · No injuries · Incident investigation · Final report · Jan 20, 1990 · N338UA · Minor damage
  > The failure of all four main landing gear tires on takeoff due to the parking brake being locked.
- [NTSB MKC89LA163](https://openairdocs.org/ntsb/MKC89LA163.md): Beech 58 · Cedar Rapids, IA · Accident · No injuries · Limited investigation · Final report · Jul 30, 1989 · N1846L · Substantial damage
  > The failure of the pilot in command to maintain alignment with the runway and excessive aircraft control in close proximity to the ground. Contributing to the accident was the pilot's diverted attention which resulted from having to shut down the left engine.
- [NTSB DCA89MA063](https://openairdocs.org/ntsb/DCA89MA063.md): Mcdonnell Douglas DC-10-10 · Sioux City, IA · Accident · 111 fatal · Class 1 · Major · Final report · Jul 19, 1989 · N1819U · Destroyed
  > The inadequate consideration given to human factors limitations in the inspection and quality control procedures used by united airlines' engine overhaul facility which resulted in the failure to detect a fatigue crack originating from a previously…
- [NTSB MKC89LA021](https://openairdocs.org/ntsb/MKC89LA021.md): Cessna U206G · Montezuma, IA · Accident · No injuries · Limited investigation · Final report · Nov 9, 1988 · N5359U · Substantial damage
  > While on a VFR cross country cargo flight, the commercial plt said his alternator failed and that within eight minutes he lost electrical power and was unable to operate the navigation instruments. He continued toward his destination about 2 more hours when…
- [NTSB MKC87LA128](https://openairdocs.org/ntsb/MKC87LA128.md): Lowder Quickie II · Iowa City, IA · Accident · No injuries · Limited investigation · Final report · Jun 28, 1987 · N86KL · Substantial damage
  > The PIC rptd normal takeoff and climb during a LCL flt. Abt 15 min into the flt, the PIC experienced a nose down pitching. Throttle was reduced and level attitude was established. The PIC rptd difficulty maintaining level flt and made a precautionary lndg on…
- [NTSB MKC87LA112](https://openairdocs.org/ntsb/MKC87LA112.md): Cessna 150G · Forest City, IA · Accident · No injuries · Limited investigation · Final report · May 19, 1987 · N3767J · Substantial damage
  > After reaching a cruise alt of 1000 ft AGL, the plt noticed a lack of oil pressure. He elected to make a precautionary landing in an unplowed soft field. The plt then reduced pwr to idle and set up for the landing. During the landing roll the acft nosed over.…
- [NTSB MKC87LA040](https://openairdocs.org/ntsb/MKC87LA040.md): Beech A-36 · Corning, IA · Accident · Minor injuries · Limited investigation · Final report · Jan 17, 1987 · N7688N · Substantial damage
  > The flt had progressed normally from champagne, IL. The IFR flt plan was cancelled at lamoni VOR and the flt proceeded VFR. On final approach to rwy 17, aprx 1 mile from the rwy, the altimeter suddenly unwound and the acft struck trees. The altimeter had…
- [NTSB MKC83LA207](https://openairdocs.org/ntsb/MKC83LA207.md): Hiller UH-12E · Corwith, IA · Accident · Minor injuries · Limited investigation · Final report · Aug 31, 1983 · N173HA · Destroyed
  > While en route, the plt heard a clanking noise behind him which was followed by a severe vibration of the flt controls. He initiated an autorotative descent from 3000 ft. he said the helicopter began to roll left, then righted itself. The helicopter touched…
- [NTSB MKC83LA166](https://openairdocs.org/ntsb/MKC83LA166.md): Schippers BD-4 · Danbury, IA · Accident · No injuries · Limited investigation · Final report · Jul 28, 1983 · N412JS · Substantial damage
  > While en route, the propeller separated from the home built acft. Subsequently, the nose gear failed & the main gear were damaged during a landing on rolling terrain. An examination revealed that the mounting bolts for a propeller spacer had failed. The…
- [NTSB MKC82DA151](https://openairdocs.org/ntsb/MKC82DA151.md): Bell 47G-2A · Washington, IA · Accident · No injuries · Final report · Aug 22, 1982 · N73205 · Substantial damage
  > The helicopter was being air taxied to the refueling location when it crashed. The pilot said he had lifted off and was about 6 ft AGL with about 20 KTS forward speed when he suddenly felt a snap and the cyclic went full left. The helicopter became…

## 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" = 'IA' 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=IA

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OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.