# NTSB investigations, AZ: 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 WPR23LA017](https://openairdocs.org/ntsb/WPR23LA017.md): Cessna 177RG · Mesa, AZ · Accident · Serious injuries · Class 3 · Limited · Final report · Oct 18, 2022 · N747ML · Substantial damage
  > The failure of maintenance personnel to properly secure the fuel supply line to the fuel flow divider, which resulted in a fuel leak, fuel exhaustion, and a total loss of engine power.
- [NTSB WPR17LA190](https://openairdocs.org/ntsb/WPR17LA190.md): Beech M35 · Lake Havasu City, AZ · Accident · Minor injuries · Limited investigation · Final report · Aug 29, 2017 · N339Z · Substantial damage
  > The pilot's incorrect positioning of the fuel tank selector valve during a tank switch, which resulted in fuel starvation and a loss of engine power. Contributing to the accident was the worn condition of the fuel selector valve handle position detents and…
- [NTSB WPR16FA183](https://openairdocs.org/ntsb/WPR16FA183.md): Cessna 182P · Gilbert, AZ · Accident · Serious injuries · Field investigation · Final report · Sep 18, 2016 · N20844 · Destroyed
  > An inadvertent explosion of pyrotechnics, which were contained in a box that had been installed on the airplane's left main landing gear assembly spring leg which resulted in shrapnel striking the airplane's left wing and breaching the left wing fuel tank,…
- [NTSB WPR13FA417](https://openairdocs.org/ntsb/WPR13FA417.md): Bell UH-1V · Cordes Lakes, AZ · Accident · 2 fatal · Field investigation · Final report · Sep 21, 2013 · N22490 · Destroyed
  > The pilot's improper maintenance on the helicopter’s main rotor blade pitch control system, which resulted in an in-flight loss of main rotor blade pitch control, mast bumping, and mast failure.
- [NTSB WPR13LA099](https://openairdocs.org/ntsb/WPR13LA099.md): Goetz Helicycle · Mesa, AZ · Accident · No injuries · Limited investigation · Final report · Jan 22, 2013 · N143PG · Substantial damage
  > The pilot's failure to properly install and secure the wire connecting the electronic speed controller unit to the fuel controller actuator motor, which resulted in the wire’s disconnection in flight and the resultant partial loss of engine power.
- [NTSB WPR13LA043](https://openairdocs.org/ntsb/WPR13LA043.md): Cirrus SR22 · Show Low, AZ · Accident · Minor injuries · Limited investigation · Final report · Nov 16, 2012 · N800RW · Substantial damage
  > The fatigue failure of an improperly installed nipple in the oil system of a supplemental type certificate-installed supercharger, which resulted in a complete loss of engine oil during cruise climb.
- [NTSB WPR11LA292](https://openairdocs.org/ntsb/WPR11LA292.md): Cessna 320F · Phoenix, AZ · Accident · No injuries · Limited investigation · Final report · Jun 21, 2011 · N6160Q · Substantial damage
  > The mechanic's failure to properly secure the nose landing gear actuator push-pull tube to the landing gear door hinge clevis, which resulted in the gear jamming and not fully retracting after takeoff.
- [NTSB WPR11CA112](https://openairdocs.org/ntsb/WPR11CA112.md): Harvey Patten Rans S-6ES · Buckeye, AZ · Accident · Minor injuries · Data collection · Final report · Jan 28, 2011 · N8053R · Substantial damage
  > A disconnection of the elevator control linkage due to incorrect installation or maintenance, which was due to the retaining nut backing off the bolt and allowing the bolt to fall out.
- [NTSB WPR11IA019](https://openairdocs.org/ntsb/WPR11IA019.md): Bombardier CL-600-2B19 · Phoenix, AZ · Incident · No injuries · Incident investigation · Final report · Oct 18, 2010 · N938SW · Minor damage
  > The overextension of the main cabin door due to difficulty opening the door because the power-assist motor cable was lodged within the main cabin door assembly.
- [NTSB WPR10LA251](https://openairdocs.org/ntsb/WPR10LA251.md): Cessna 210A · Benson, AZ · Accident · Minor injuries · Limited investigation · Final report · May 21, 2010 · N6630X · Substantial damage
  > A loss of engine power due to fuel starvation as a result of a loss of fuel pressure caused by the fuel pump screws being loose. Contributing to the accident was inadequate maintenance.
- [NTSB WPR10CA164](https://openairdocs.org/ntsb/WPR10CA164.md): Eurocopter AS 350 B3 · Parker, AZ · Accident · No injuries · Data collection · Final report · Mar 16, 2010 · N4282 · Substantial damage
  > The mechanics' failure to account for all the tools following a maintenance procedure and the pilot's failure to perform a preflight check before a maintenance test flight.
- [NTSB WPR09LA196](https://openairdocs.org/ntsb/WPR09LA196.md): Cessna 152 · Glendale, AZ · Accident · Minor injuries · Limited investigation · Final report · Apr 15, 2009 · N6285M · Substantial damage
  > A loss of engine power due to the failure of both magnetos resulting from an improper maintenance repair by maintenance personnel.
- [NTSB LAX08LA269](https://openairdocs.org/ntsb/LAX08LA269.md): Cessna TU206F · Glendale, AZ · Accident · No injuries · Limited investigation · Final report · Aug 19, 2008 · N62DB · Substantial damage
  > A loose fuel line fitting that resulted in a partial loss of engine power during the initial takeoff climb. Contributing to the accident was inadequate maintenance installation of the fitting.

## 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 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=AZ

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