# NTSB investigations, 2019: 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 CEN20LA041](https://openairdocs.org/ntsb/CEN20LA041.md): Cessna 525A · Scotts Bluff, NE · Accident · No injuries · Class 3 · Limited · Final report · Dec 18, 2019 · CGOJG · Substantial damage
  > The installation of incorrect mounting hardware to secure the right engine cowl, which resulted in an in-flight separation and impact with the horizontal stabilizer and elevator.
- [NTSB ERA20LA050](https://openairdocs.org/ntsb/ERA20LA050.md): Zenith Zodiac CH-650 · Willow Springs, MO · Accident · Minor injuries · Class 3 · Limited · Final report · Dec 8, 2019 · N914AR · Substantial damage
  > Improper maintenance practices on the fuel system causing fuel starvation and a total loss of engine power.
- [NTSB CEN19LA320](https://openairdocs.org/ntsb/CEN19LA320.md): Cirrus SR22 · Hoagland, IN · Accident · Minor injuries · Class 2 · Limited · Final report · Sep 13, 2019 · N578SP · Substantial damage
  > A catastrophic engine failure and forced landing due to the separation of the No. 1 connecting rod as a result of migration of the connecting rod piston pin bushing. Contributing to the accident was the mechanic’s failure to follow manufacturer guidance…
- [NTSB ANC19LA048](https://openairdocs.org/ntsb/ANC19LA048.md): Piper PA-18 · Fairbanks, AK · Accident · No injuries · Class 3 · Limited · Final report · Aug 30, 2019 · N1124 · Substantial damage
  > The inappropriate application of paint underneath the engine cylinder hold-down nuts, which resulted in inadequate torque and the subsequent in-flight separation of the No. 3 cylinder, and resulted in a total loss of engine power.
- [NTSB ERA19FA256](https://openairdocs.org/ntsb/ERA19FA256.md): Moriarty Marvin Aventura II · Minneola, FL · Accident · 1 fatal · Class 3 · Field · Final report · Aug 23, 2019 · N9143M · Substantial damage
  > The pilot’s improper modifications to the airplane’s engine, which resulted in the partial loss of engine power. Contributing to the outcome was the pilot's exceedance of the airplane’s critical angle of attack during an attempted return to the airport…
- [NTSB CEN19LA258](https://openairdocs.org/ntsb/CEN19LA258.md): Cessna R172 · North Garden, VA · Accident · Minor injuries · Class 3 · Limited · Final report · Aug 8, 2019 · N1609V · Substantial damage
  > A total loss of engine power due to the failure of the oil pump drive gear.
- [NTSB CEN19LA224](https://openairdocs.org/ntsb/CEN19LA224.md): Piper PA18 · Osceola, WI · Accident · No injuries · Class 3 · Limited · Final report · Jul 14, 2019 · N6983B · Substantial damage
  > The failure of the right horizontal stabilizer during takeoff, resulting in a loss of control and forced landing. Contributing to the accident was the installation of an unapproved stabilizer frame and failure of maintenance personnel to identify…
- [NTSB CEN19LA219](https://openairdocs.org/ntsb/CEN19LA219.md): Fisher Flying Products Super Koala · Hazen, ND · Accident · No injuries · Class 3 · Limited · Final report · Jul 6, 2019 · N220FF · Substantial damage
  > The airplane owner's and mechanic's improper rigging and cable tension of the aileron control system, which resulted in a loss of control during takeoff.
- [NTSB ERA19TA216](https://openairdocs.org/ntsb/ERA19TA216.md): Cessna 180 · Pickens, SC · Accident · No injuries · Class 3 · Final report · Jun 29, 2019 · N75077 · Substantial damage
  > Maintenance personnel’s improper installation of the right main landing gear brake assembly, which resulted in the loss of control during landing.
- [NTSB CEN19LA174](https://openairdocs.org/ntsb/CEN19LA174.md): Robinson R44 · Key West, FL · Accident · No injuries · Class 3 · Limited · Final report · Jun 17, 2019 · N1241W · Substantial damage
  > The failure of maintenance personnel to properly secure the right-side tail boom mounting bolts which resulted in the failure of the bolts and an inflight separation of the tail rotor.
- [NTSB CEN19FA135](https://openairdocs.org/ntsb/CEN19FA135.md): Piper PA34 · Anderson, IN · Accident · Serious injuries · Class 2 · Field · Final report · May 5, 2019 · N999CR · Substantial damage
  > The loss of left engine power due to an incorrectly adjusted fuel servo and the airplane's nose up trim which resulted in the airplane steep climb, loss of airspeed, and aerodynamic stall and subsequent impact with terrain.
- [NTSB CEN19FA109](https://openairdocs.org/ntsb/CEN19FA109.md): Aerospatiale AS350 · Montgomery, TX · Accident · 1 fatal · Class 3 · Field · Final report · Mar 27, 2019 · N818MC · Substantial damage
  > Maintenance personnel's failure to properly re-install and secure a fuel line, which resulted in a total loss of engine power.
- [NTSB CEN19LA066](https://openairdocs.org/ntsb/CEN19LA066.md): Piper PA-32R-300 · Adrian, MI · Accident · Minor injuries · Limited investigation · Final report · Jan 13, 2019 · N8892E · Substantial damage
  > The airframe and powerplant mechanic's lack of experience in the overhaul of the engine model and the improper torque of the crankshaft gear bolt, which resulted in fatigue failure of the bolt and a total loss of engine power during an approach for landing.
- [NTSB ERA19LA085](https://openairdocs.org/ntsb/ERA19LA085.md): Piper PA24 · Wilkes-Barre, PA · Accident · No injuries · Limited investigation · Final report · Jan 3, 2019 · N6872P · Substantial damage
  > The pilot/mechanic's improper installation and securing of the mixture control cable, which led to a simultaneous loss of total engine power and failure of the nose landing gear to fully extend when the cable caught on the nose landing gear assembly.

## 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 year(c."eventDate") = 2019
  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?year=2019

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