# NTSB investigations, TN: Aircraft maintenance event

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 ERA25LA238](https://openairdocs.org/ntsb/ERA25LA238.md): Cessna 310 · Fayetteville, TN · Accident · No injuries · Class 3 · Limited · Final report · Jun 24, 2025 · N5045Q · Substantial damage
  > The pilot’s decision to operate the airplane with known discrepancies.
- [NTSB ERA23LA347](https://openairdocs.org/ntsb/ERA23LA347.md): Piper PA28 · Knoxville, TN · Accident · No injuries · Class 3 · Limited · Final report · Jul 27, 2023 · N15417 · Substantial damage
  > An in-flight fire that resulted from an inadequate 100-hr inspection, which failed to detect and correct improper electrical cable routing in the engine compartment.
- [NTSB ERA18IA078](https://openairdocs.org/ntsb/ERA18IA078.md): Airbus Helicopters EC 130 · Memphis, TN · Incident · No injuries · Class 3 · Incident · Final report · Jan 28, 2018 · N894GT · Minor damage
  > The pilot’s failure to lock the collective pitch control after landing, and the mechanic’s failure to properly balance the collective pitch control after converting the helicopter to a single-pilot configuration, which resulted in an uncommanded collective…
- [NTSB ERA16LA191](https://openairdocs.org/ntsb/ERA16LA191.md): Sikes Zenith CH750 Stol · Lawrenceburg, TN · Accident · Minor injuries · Limited investigation · Final report · May 22, 2016 · N925PS · Substantial damage
  > The pilot's failure to perform an adequate preflight inspection, which resulted in a loss of control due to an improperly-rigged rudder. Contributing to the accident was the pilot's failure to implement and follow proper flight-testing plans.
- [NTSB ERA16FA144](https://openairdocs.org/ntsb/ERA16FA144.md): Bell 206 · Pigeon Forge, TN · Accident · 5 fatal · Field investigation · Final report · Apr 4, 2016 · N16760 · Destroyed
  > An inflight loss of engine power due to a failure of the engine fuel pump, which resulted in a collision with trees and terrain during the subsequent autorotation. The failure of the engine fuel pump resulted from the absence of adequate grease leading to…
- [NTSB ERA14FA461](https://openairdocs.org/ntsb/ERA14FA461.md): Eagle R&D Helicycle · Gallatin, TN · Accident · 1 fatal · Field investigation · Final report · Sep 28, 2014 · N7062U · Substantial damage
  > The pilot's decision to fly the improperly balanced helicopter at high speed and low altitude, which resulted in a loss of control and collision with terrain. Contributing to the accident were the pilot's depression and resulting degradation of executive…
- [NTSB ERA14FA421](https://openairdocs.org/ntsb/ERA14FA421.md): Klaas Development Lancair IV P · Ooltewah, TN · Accident · 1 fatal · Field investigation · Final report · Sep 3, 2014 · N541EM · Substantial damage
  > The inadequate torque of the propeller mounting bolts and inspection of the propeller, which resulted in the fatigue fracture of the bolts and a subsequent in-flight separation of the propeller assembly.
- [NTSB ERA14LA142](https://openairdocs.org/ntsb/ERA14LA142.md): Cessna 172R · Jackson, TN · Accident · No injuries · Limited investigation · Final report · Mar 5, 2014 · N9417Z · Substantial damage
  > A total loss of engine power due to maintenance personnel’s improper installation of the lower vacuum pump.
- [NTSB ERA12LA422](https://openairdocs.org/ntsb/ERA12LA422.md): Mooney M20J · Mc Kinnon, TN · Accident · Serious injuries · Limited investigation · Final report · Jun 28, 2012 · N174JB · Substantial damage
  > The separation of the piston connecting rod from the crankshaft due to inadequate installation from a mechanic, resulting in a total loss of engine power.
- [NTSB ERA11CA375](https://openairdocs.org/ntsb/ERA11CA375.md): Temco GC-1B · Sparta, TN · Accident · No injuries · Data collection · Final report · Jul 2, 2011 · N106S · Substantial damage
  > The improper installation of the right rudder control cable by maintenance personnel, which resulted in the pilot's inability to maintain directional control during takeoff.
- [NTSB MIA08LA185](https://openairdocs.org/ntsb/MIA08LA185.md): Bellanca 17-30A · Sparta, TN · Accident · No injuries · Limited investigation · Final report · Sep 6, 2008 · N9792E · Substantial damage
  > Failure of the nose landing gear mount during a normal landing due to an improper weld.
- [NTSB NYC08LA165](https://openairdocs.org/ntsb/NYC08LA165.md): Dragon Fly GT-500 · Paris, TN · Accident · 1 fatal · Limited investigation · Final report · Apr 21, 2008 · N101GP · Substantial damage
  > A fuel system configuration that was not in accordance with the engine manufacturer's published guidance, which resulted in a complete loss of engine power due to fuel starvation.

## 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" = 'TN' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '040' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent"))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/040/sequence?state=TN

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