ASN Wikibase Occurrence # 59619
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| Date: | 10-JUN-2001 |
| Time: | 12:20 |
| Type: |  Yakovlev Yak-52 |
| Owner/operator: | Private |
| Registration: | N52BG |
| MSN: | 889106 |
| Fatalities: | Fatalities: 2 / Occupants: 2 |
| Other fatalities: | 0 |
| Aircraft damage: | Written off (damaged beyond repair) |
| Category: | Accident |
| Location: | Custer, near Bellingham, Washington -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | Point Roberts, WA |
| Everett, WA (PAE) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The experimental category Yakovlev Yak-52, was destroyed after colliding with terrain while maneuvering. The first pilot, a commercial pilot/certified flight instructor who was seated in the forward seat, and the second pilot, a commercial pilot receiving instruction, were fatally injured. The accident airplane, a Yak-52, was the number two airplane in a flight of three aircraft. Shortly after takeoff, the number three airplane (Yak-18) returned to secure a fuel door that became unlatched during the initial takeoff. The pilot of the Yak-52 elected to maneuver over an area know as Cherry Point and wait for pilot of the Yak-18 to rejoin him. Approximately 10 minutes later, the pilot of the Yak-18 rejoined the Yak-52. The Yak 18 pilot stated that as he approached the area from the northwest, he observed the accident airplane maneuvering northeast of his position at an altitude of 1,500 feet mean sea level (MSL). He instructed the Yak-52 pilot to reverse his course in an effort to join him in formation flight. He reported that shortly after the pilot of the Yak-52 initiated the turn to the west (left), the airplane "...stalled and pitched nose down at about 40-60 degrees." Reportedly, the Yak-52 then rolled to the right, pitched up and oscillated around its vertical axis. Witnesses stated that the accident airplane rotated 2-3 times prior to impacting terrain. The pilot of the Yak-18 stated the accident airplane impacted terrain in a relatively level attitude with little forward motion. Post accident inspection of the airplane and associated components revealed no evidence of a preimpact mechanical malfunction or failure.
Probable Cause: The first pilot's failure to maintain aircraft control while maneuvering. Factors include an inadvertent stall.
Sources:
NTSB: https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20010614X01180&key=1
FAA register: 3. FAA: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?omni=Home-N-Number&nNumberTxt=52BG
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 19-Apr-2009 06:35 | XLerate | Added |
| 19-Apr-2009 06:41 | XLerate | Updated |
| 17-Mar-2011 12:30 | TB | Updated [Cn, Source] |
| 18-Mar-2011 05:46 | TB | Updated [Source] |
| 10-Oct-2013 16:09 | Dr. John Smith | Updated [Source] |
| 08-Aug-2016 17:03 | Dr.John Smith | Updated [Time, Operator, Location, Destination airport, Source, Narrative] |
| 21-Dec-2016 19:25 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 10-Dec-2017 11:28 | ASN Update Bot | Updated [Departure airport, Destination airport, Source, Narrative] |
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