# NTSB investigations: Unscheduled maint checks

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 WPR22LA005](https://openairdocs.org/ntsb/WPR22LA005.md): Beech B36TC · Los Banos, CA · Accident · No injuries · Class 3 · Limited · Final report · Oct 9, 2021 · N7220B · Substantial damage
  > The total loss of engine power due to the improper installation of the No. 4 connecting rod bolt nut during a recent overhaul.
- [NTSB ERA15LA341](https://openairdocs.org/ntsb/ERA15LA341.md): Piper PA 28RT-201 · Russell Springs, KY · Accident · Minor injuries · Class 2 · Limited · Final report · Sep 4, 2015 · N8162S · Substantial damage
  > Maintenance personnel’s inadequate fuel injection servo maintenance due to an out-of-date AD list, which resulted in the fuel injection servo plug backing out of the threaded plug hole on the regulator cover of the fuel injection servo and subsequent total…
- [NTSB WPR14CA295](https://openairdocs.org/ntsb/WPR14CA295.md): Cessna R182 · El Monte, CA · Accident · No injuries · Data collection · Final report · Jul 18, 2014 · N7571T · Substantial damage
  > The failure of the right main landing gear pivot assembly. Contributing to the accident was the owner's failure to perform an inspection of the assembly in accordance with the manufacturer's service bulletin.
- [NTSB DCA12IA096](https://openairdocs.org/ntsb/DCA12IA096.md): Airbus A320 · Las Vegas, NV · Incident · No injuries · Incident investigation · Final report · Jun 17, 2012 · N552JB · No damage
  > the failure of the right main landing gear door retraction flexible hydraulic line in the Green hydraulic system, which led to prolonged operation of the power transfer unit and subsequent overheating and loss of pressure in the Yellow hydraulic system,…
- [NTSB WPR11LA074](https://openairdocs.org/ntsb/WPR11LA074.md): Piper PA-28-140 · Chino, CA · Accident · No injuries · Limited investigation · Final report · Dec 10, 2010 · N5800U · Substantial damage
  > Fatigue cracking of the upper torque-link attach lugs on the left main landing gear strut, which resulted in separation of the left main landing gear during taxi.
- [NTSB CEN09FA094](https://openairdocs.org/ntsb/CEN09FA094.md): Bombardier CL-600-2C10 · Chicago, IL · Incident · No injuries · Field investigation · Final report · Dec 16, 2008 · N511MJ · Minor damage
  > The failure of the left landing gear to extend due to improper maintenance when the landing gear door was replaced. Contributing to the incident was the manufacturer's inadequate maintenance manual instructions.

## 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", '01010550'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-findings/01010550/cases

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