ASN Wikibase Occurrence # 45524
This information is added by users of ASN. Neither ASN nor the Flight Safety Foundation are responsible for the completeness or correctness of this information.
If you feel this information is incomplete or incorrect, you can submit corrected information.
| Date: | Tuesday 18 June 2002 |
| Time: | 12:20 |
| Type: |  Yakovlev Yak-52 |
| Owner/operator: | Private |
| Registration: | N644LL |
| MSN: | 833310 |
| Total airframe hrs: | 1164 hours |
| Engine model: | Ivchenko M14-P |
| Fatalities: | Fatalities: 1 / Occupants: 1 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Antioch, CA -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Private |
| Departure airport: | Livermore Airport, CA (LVK/KLVK) |
| Concord-Buchanan Field, CA (CCR/KCCR) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
On June 18, 2002, at 1220 pacific daylight time, a Yakovlev Yak 52 single-engine aerobatic airplane, N644LL, was destroyed when it impacted terrain following a loss of control while maneuvering near Antioch, California. The airplane was registered to a private individual and operated by another private individual. The commercial pilot, sole occupant of the airplane, was fatally injured. Visual meteorological conditions prevailed, and a flight plan was not filed for the 14 Code of Federal Regulations Part 91 personal flight. The local flight originated from the Livermore Municipal Airport, near Livermore, California, at 1005, and was destined for the Buchanan Field (CCR), near Concord, California.
A witness located north east of the accident site, observed the airplane "starting a vertical climb, slowly rolling over and diving straight down." The witness stated that the airplane "never appeared to be trying to pull out of the dive." Subsequently, the witness lost sight of the airplane behind a mountain, and heard the "sound of impact." Examination of the wreckage revealed a screwdriver located in the aft section of the fuselage. Multiple witness marks were observed around the elevator bellcrank housing, and numerous gouges on the screwdriver. When the screwdriver was placed between the elevator bellcrank and housing, and the bellcrank moved by hand, the elevator control was restricted to the neutral position. The energy dispersive x-ray spectroscopy analysis performed on the screwdriver conclusively demonstrated that the screwdriver was lodged between the various structural items.
Probable Cause: The loss of control while performing acrobatic maneuvers due to a screwdriver restricting elevator travel. A contributing factor was the airplane's fuselage not being sterile of foreign objects.
Accident investigation:
 |
|
Sources:
NTSB: https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20020619X00925&key=1
Location
Images:
Photos: NTSB
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 28-Oct-2008 00:45 | ASN archive | Added |
| 21-Dec-2016 19:24 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 09-Dec-2017 16:49 | ASN Update Bot | Updated [Source, Narrative] |
| 20-Dec-2023 19:48 | Captain Adam | Updated [Departure airport, Destination airport, Narrative, Accident report, Photo] |
| 20-Dec-2023 19:49 | Captain Adam | Updated [Photo] |
Corrections or additions? ... Edit this accident description
The Aviation Safety Network is an exclusive service provided by:
Quick Links:
| ASN Home | Send Correction / Feedback |
| FSF Home | Disclaimer | Copyright |
| Contact Us | Privacy Policy |
| Press / Media |
CONNECT WITH US:
©2024 Flight Safety Foundation