ASN Wikibase Occurrence # 43501
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: | Friday 11 October 1996 |
| Time: | 17:17 LT |
| Type: |  Aero Vodochody L-29 Delfin |
| Owner/operator: | Erickson Group Ltd. |
| Registration: | N7150A |
| MSN: | 591318 |
| Engine model: | P&W J60-5A |
| Fatalities: | Fatalities: 2 / Occupants: 2 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Tillamook, OR -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Unknown |
| Departure airport: | (S47) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The Checkoslovakian manufactured Aero Vodochody L-29 jet trainer collided with terrain following a loss of control while maneuvering at low altitude. Before the accident, the aircraft was maneuvering into position to photograph an F4F Wildcat aircraft. Witnesses reported that the aircraft took off and maneuvered to overtake the Wildcat. They stated that as the L-29 crossed behind the F4F's flight path, it rolled to the right, approximately 1-1/4 turns. Reportedly, the L-29's nose pitched up during the occurrence, then dropped to an extremely nose-low position. The aircraft subsequently impacted the ground in a near level attitude with a steep flight path angle. The witnesses reported that the sequence took place at an estimated airspeed between 120 and 150 knots and about 500 feet above ground level. The witnesses also reported that the two aircraft did not collide. A guide to world military aircraft gives the airplane's flaps-down stall speed as 81 MPH (70 knots) at 7165 pounds gross weight. One witness stated the pilot had performed a 'barrel' roll type of maneuver; the witness believed this was an intentional maneuver to slow down, as he was overtaking the F4f. The investigation did not determine whether the aircraft had encountered wake turbulence, or whether it had stalled and/or dished out during the maneuver.
Probable Cause: failure of the pilot to maintain control of the aircraft, while maneuvering behind an F4F aircraft. The lack of altitude for a recovery was a related factor.
Accident investigation:
 |
|
Sources:
NTSB SEA97LA011
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Oct-2008 10:30 | ASN archive | Added |
| 21-Dec-2016 19:24 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 08-Apr-2024 18:33 | ASN Update Bot | Updated [Time, Operator, Other fatalities, Source, Narrative, Category, Accident report] |
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