# NTSB investigations: Standard operating practices

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 CEN19FA072](https://openairdocs.org/ntsb/CEN19FA072.md): Bell 407 · Zaleski, OH · Accident · 3 fatal · Class 1 · Field · Final report · Jan 29, 2019 · N191SF · Destroyed
  > The NTSB determines that the probable cause of this accident was Survival Flight's inadequate management of safety, which normalized pilots' and operations control specialists' noncompliance with risk analysis procedures and resulted in the initiation of the…
- [NTSB ANC17LA051](https://openairdocs.org/ntsb/ANC17LA051.md): Leonardo AW139 · Tujunga, CA · Accident · No injuries · Class 3 · Limited · Final report · Sep 2, 2017 · N304FD · Substantial damage
  > A yaw excursion and uncontrolled descent due to loss of tail rotor effectiveness during aerial firefighting operations resulting in an impact with trees. A contributing factor was the pilot’s failure to maintain sufficient airspeed, coupled with a quartering…
- [NTSB ANC15MA041](https://openairdocs.org/ntsb/ANC15MA041.md): Dehavilland DHC-3 · Ketchikan, AK · Accident · 9 fatal · Class 1 · Major · Final report · Jun 25, 2015 · N270PA · Substantial damage
  > (1) the pilot's decision to continue visual flight into an area of instrument meteorological conditions, which resulted in his geographic disorientation and controlled flight into terrain; and (2) Promech's company culture, which tacitly endorsed flying in…
- [NTSB OPS14IA007](https://openairdocs.org/ntsb/OPS14IA007.md): Boeing 757 · Powhatan, VA · Incident · Minor injuries · Incident investigation · Final report · Apr 29, 2014 · UNK · Minor damage
  > The air traffic controller’s failure to provide required advisories about significant radar-observed convective precipitation along both airplanes’ flight routes and the air route traffic control center’s lack of a program to ensure that air traffic…
- [NTSB CEN14GA135](https://openairdocs.org/ntsb/CEN14GA135.md): Cessna 210E · Oden, AR · Accident · 1 fatal · Final report · Jan 31, 2014 · N4957U · Substantial damage
  > The pilot’s improper decision to fly into an area with reported marginal meteorological conditions in an airplane not maintained for instrument flight and his subsequent failure to maintain clearance from trees and terrain.
- [NTSB WPR12FA420](https://openairdocs.org/ntsb/WPR12FA420.md): Piper PA-28-181 · Strawberry, AZ · Accident · 3 fatal · Field investigation · Final report · Sep 13, 2012 · N4188E · Substantial damage
  > The flight instructor's and the evaluator's failure to divert at an appropriate time during cruise flight, which resulted in the airplane's inability to maintain a sufficient altitude to clear rising terrain. Contributing to the accident was the flight…
- [NTSB DCA12FA076](https://openairdocs.org/ntsb/DCA12FA076.md): Hawker Hawker Hunter MK.58A · Point Mugu, CA · Accident · 1 fatal · Field investigation · Final report · May 18, 2012 · N329AX · Destroyed
  > the pilot's decision to continue the flight with a known fuel imbalance condition that resulted in a loss of lateral control when the imbalance exceeded the known capabilities of the airplane. The fuel imbalance was due to incomplete refueling and an…
- [NTSB CEN09LA525](https://openairdocs.org/ntsb/CEN09LA525.md): Cessna 182 · Caddo Mills, TX · Accident · Serious injuries · Limited investigation · Final report · Aug 15, 2009 · N2364G · Minor damage
  > The failure of the operator to ensure that the airplane engine was shutdown during passenger unloading and the lack of adequate supervision of the passenger by the pilot and ground crewmember.
- [NTSB LAX08PA259](https://openairdocs.org/ntsb/LAX08PA259.md): Sikorsky S-61N · Weaverville, CA · Accident · 9 fatal · Class 1 · Final report · Aug 6, 2008 · N612AZ · Destroyed
  > The following actions by Carson Helicopters: 1) the intentional understatement of the helicopter's empty weight, 2) the alteration of the power available chart to exaggerate the helicopter's lift capability, and 3) the practice of using unapproved…
- [NTSB SEA08IA096](https://openairdocs.org/ntsb/SEA08IA096.md): Raytheon 1900D · Page, AZ · Incident · No injuries · Incident investigation · Final report · Mar 26, 2008 · N261GL · Minor damage
  > The flight crew’s unprofessional behavior and deviation from standard operating procedures which resulted in an in-flight emergency.

## 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."mKey" IN (SELECT f.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_findings.parquet' f WHERE starts_with(f."findingCode", '04024015'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-findings/04024015/cases

---
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.
