# NTSB investigations: Continental GTSIO-520-C, AZ 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 WPR26LA145](https://openairdocs.org/ntsb/WPR26LA145.md): Cessna 421B · Sedona, AZ · Accident · No injuries · Class 3 · Limited · Preliminary report · Mar 27, 2026 · N799TF · Substantial damage > On March 27, 2026, about 1630 Pacific daylight time, a Cessna 421B, N799TF, was substantially damaged when it was involved in an accident near Sedona, Arizona. The pilot and pilot rated passenger were not injured. The airplane was operated as a Code of… - [NTSB WPR23LA084](https://openairdocs.org/ntsb/WPR23LA084.md): Cessna TP206A · Maricopa, AZ · Accident · No injuries · Class 3 · Limited · Final report · Dec 8, 2022 · N30WL · Substantial damage > A total loss of engine power due to fuel starvation. Contributing to the accident was the pilot’s improper fuel management. - [NTSB WPR09CA017](https://openairdocs.org/ntsb/WPR09CA017.md): Piper L-4 · Buckeye, AZ · Accident · No injuries · Data collection · Final report · Oct 19, 2008 · N87117 · 2 aircraft · Substantial damage > Another airplanes total loss of wheel brakes while taxing which resulted in the pilot of the other aircraft colliding with a standing aircraft. Contributing to the accident was the other airplanes low brake hydraulic fluid. - [NTSB LAX05LA130](https://openairdocs.org/ntsb/LAX05LA130.md): Cessna 421B · Lake Havasu Cit, AZ · Accident · No injuries · Limited investigation · Final report · Apr 4, 2005 · N637SC · Substantial damage > the fracture of the landing gear shaft roll pin that resulted in a main gear collapse during the taxi. - [NTSB LAX05CA001](https://openairdocs.org/ntsb/LAX05CA001.md): Cessna TU206A · Nogales, AZ · Accident · No injuries · Data collection · Final report · Oct 2, 2004 · N4835F · Substantial damage > the pilot's failure to remain on the designated taxiway surface, which resulted in the airplane's collision with the ditch. The dark lighting condition was a factor to the accident. - [NTSB LAX98LA121](https://openairdocs.org/ntsb/LAX98LA121.md): Cessna 421B · Show Low, AZ · Accident · No injuries · Limited investigation · Final report · Mar 18, 1998 · N70PD · Substantial damage > The pilot's failure to attain the proper alignment on the runway due to the obscuration by snow of the runway and on the airplane's windows. - [NTSB LAX95IA011](https://openairdocs.org/ntsb/LAX95IA011.md): Cessna 402 · Grand Canyon, AZ · Incident · No injuries · Incident investigation · Final report · Oct 18, 1994 · N402SW · Minor damage > the fracture and failure of the left main landing gear bellcrank which jammed the landing gear in the retracted position. - [NTSB LAX94LA302](https://openairdocs.org/ntsb/LAX94LA302.md): Cessna 421C · Polacca, AZ · Accident · No injuries · Limited investigation · Final report · Jul 29, 1994 · N985RA · Substantial damage > the pilot's attempt to make a 180-degree turn in soft sand at a speed which imposed side loading on the nose gear. Factors were the pilot's decision to continue the approach beyond the planned touchdown point, the effect of the runway surface on braking… - [NTSB LAX91LA129](https://openairdocs.org/ntsb/LAX91LA129.md): Cessna 421B · Tucson, AZ · Accident · Serious injuries · Limited investigation · Final report · Mar 12, 1991 · N924MD · Substantial damage > The fatigue failure of the right engine turbo exhaust clamp, and, the failure of the flying pilot to complete the single engine emergency procedures in a timely manner. A factor in the accident was the failure of the pilot in command to adequately supervise… - [NTSB LAX89LA217](https://openairdocs.org/ntsb/LAX89LA217.md): Cessna 421 · Picacho, AZ · Accident · Minor injuries · Limited investigation · Final report · Jun 17, 1989 · N421S · Destroyed > Failure of the number three exhaust valve on the left engine. A major factor was the high density altitude where the airplane would not operate on single engine. - [NTSB LAX87FA151](https://openairdocs.org/ntsb/LAX87FA151.md): Cessna T210K · Prescott, AZ · Accident · Serious injuries · Field investigation · Final report · Mar 20, 1987 · N8105G · Destroyed > After overloading the aircraft with 5 pax and baggage, the pilot departed on a personal cross country flight to phoenix, AZ. He climbed the acft to and maintained an altitude of 14,500 feet MSL until reaching salt lake city, UT. The aircraft was then… - [NTSB LAX84LA069](https://openairdocs.org/ntsb/LAX84LA069.md): Cessna TU206E · Red Rock, AZ · Accident · No injuries · Limited investigation · Final report · Nov 25, 1983 · N1445M · Substantial damage > The acft taxied into a ditch after landing on a road at night. After the acft came to rest it was apparently intentionally burned. Sob & injuries are presumed. The landing site was marked by the placement of white cloths along the edges of the road. The acft… - [NTSB LAX83LA259](https://openairdocs.org/ntsb/LAX83LA259.md): Cessna 421B · Buckeye, AZ · Accident · No injuries · Limited investigation · Final report · May 7, 1983 · N315CC · Substantial damage > The plt had made 3 night landings at the strip during the past 6 mths. The procedure that had been used for lighting thestrip was to place a vehicle at the west end with the headlights facing east down the centerline of the strip. However, on the night of the… - [NTSB LAX82DA200](https://openairdocs.org/ntsb/LAX82DA200.md): Cessna TP206A · Sedona, AZ · Accident · No injuries · Final report · May 29, 1982 · N4637F · Substantial damage > During touchdown the aircraft started to porpoise. The pilot elected to go-around and added power however the aircraft departed the left side of the runway and came to rest nose down in the dirt. - [NTSB LAX80FA064](https://openairdocs.org/ntsb/LAX80FA064.md): Cessna 421B · Tucson, AZ · Accident · 2 fatal · Closed · Mar 14, 1980 · N59RZ · Destroyed ## 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" = 'AZ' AND c."eventCountry" = 'USA' AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('17035')) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?engine=17035&state=AZ --- 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.