ASN Wikibase Occurrence # 19542
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| Date: | Saturday 17 May 2008 |
| Time: | 16:45 |
| Type: |  de Havilland Canada DHC-2 Beaver |
| Owner/operator: | Chelan Airways |
| Registration: | N9558Q |
| MSN: | 1151 |
| Year of manufacture: | 1957 |
| Total airframe hrs: | 12070 hours |
| Engine model: | Pratt & Whitney R-985 |
| Fatalities: | Fatalities: 2 / Occupants: 5 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Lake Chelan, near Stehekin, WA -
 United States of America
|
| Phase: | Landing |
| Nature: | Passenger - Non-Scheduled/charter/Air Taxi |
| Departure airport: | Chelan, WA (S10) |
| Stehekin, WA | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The amphibious-float-equipped airplane departed from a paved runway for the 40-nautical-mile flight to its destination, where a water landing on a lake was to be made. The pilot did not raise the landing gear after takeoff. During the flight, the air was bumpy and turbulent, and this resulted in the gear advisory system activating numerous times. The purpose of the system is to alert the pilot of the landing gear position--up for a water landing or down for a runway landing--when the airspeed decreased below a set threshold value. The pilot disabled the system by pulling its circuit breaker because the alerts were becoming a nuisance; he intended to reset the breaker during descent, but did not do so. Upon reaching the destination, the pilot set up a 150- to 200-feet-per-minute rate of descent for a glassy water landing on the lake. With the landing gear in the down position, the airplane contacted the water and abruptly nosed over. The airplane came to rest floating inverted, suspended by the floats. The pilot reported that the day of the accident was his nineteenth consecutive duty day, including office duty and flight duty. He stated that he feels the lack of days off during the previous 19 days was a contributing factor to this accident. When asked what would have prevented the accident, the pilot suggessted consistency in using the checklist. On two flights earlier in the day he had used a written checklist; on the accident flight he did not.
Probable Cause: The pilot's failure to retract the landing gear wheels prior to performing a water landing. Contributing to the accident were the pilot's disabling of the landing gear warning/advisory system and possible fatigue due to his work schedule.
Accident investigation:
 |
|
Sources:
NTSB
History of this aircraft
Other occurrences involving this aircraft
| 25 June 2014 | N115CX | Rbg Bush Planes Llc | 0 | Mulchatna River, NE of Dillingham, AK | |
min |
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 18-May-2008 09:55 | Fusko | Added |
| 19-May-2008 04:12 | emil | Updated |
| 20-May-2008 04:28 | Dmitriy | Updated |
| 21-Dec-2016 19:14 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 21-Dec-2016 19:16 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 21-Dec-2016 19:20 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 03-Dec-2017 10:49 | ASN Update Bot | Updated [Other fatalities, Departure airport, Destination airport, Source, Narrative] |
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