ASN Wikibase Occurrence # 284428
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 14 August 2007 |
| Time: | 13:00 LT |
| Type: |  Cessna 172B |
| Owner/operator: | Private |
| Registration: | N7657X |
| MSN: | 17248157 |
| Year of manufacture: | 1960 |
| Total airframe hrs: | 2954 hours |
| Engine model: | Lycoming O-360-A1A |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Seattle, Washington -
 United States of America
|
| Phase: | Unknown |
| Nature: | Training |
| Departure airport: | Seattle, WA |
| Spanaway, WA | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
During the floatplane instructional flight, the private pilot decided to make a practice landing and takeoff on a large lake. Although the landing on the calm water was uneventful, during the takeoff run, just before liftoff, the aircraft encountered the wake of a large boat. As the aircraft crossed the crest of the first wave of the wake, it became momentarily airborne, and then it impacted the advancing forward face of the second wave. At the moment of impact, four of the float attach fittings failed. The pilot therefore immediately aborted the takeoff, but the right wing impacted the surface of the water before the aircraft came to a stop. Neither the private pilot nor the instructor pilot that was supervising him had seen the large swell approaching during the landing, and during the takeoff run, neither of them noticed it until a few seconds prior to the time the aircraft impacted it.
Probable Cause: The private pilot's failure to see the approaching large wake swell, both during his landing and the subsequent takeoff, and the failure of the instructor pilot to insure that the private pilot's visual lookout was effective enough to detect the oncoming wake. Factors include a wake generated by a large boat.
Accident investigation:
 |
|
Sources:
NTSB SEA07CA235
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 30-Sep-2022 16:34 | ASN Update Bot | Added |
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