ASN Wikibase Occurrence # 23108
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| Date: | Monday 13 August 2001 |
| Time: | 17:06 |
| Type: |  de Havilland Canada DHC-2 Beaver |
| Owner/operator: | Wahkash Contracting Ltd. |
| Registration: | C-GVHT |
| MSN: | 257 |
| Year of manufacture: | 1951 |
| Engine model: | Pratt & Whitney R-985-AN-14B |
| Fatalities: | Fatalities: 5 / Occupants: 5 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | 40 mi N of Port Hardy, BC -
 Canada
|
| Phase: | En route |
| Nature: | Unknown |
| Departure airport: | Campbell River, BC |
| Mackenzie Sound | |
| Investigating agency: | TSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
A de Havilland DHC-2 Beaver floatplane, C-GVHT (serial number 257), took off from Campbell River, British Columbia, at 1530 Pacific daylight time, with a pilot and four passengers on board. The aircraft was on a visual flight rules flight to a logging camp on Mackenzie Sound, 76 nautical miles northwest of Campbell River, and was scheduled to arrive at 1700. When the aircraft arrived over the Mackenzie logging camp, the pilot informed ground personnel by radio that he was overhead at 2800 feet, between cloud layers with no place to descend, and that because of unfavourable weather conditions, he was returning, presumably to Campbell River. The aircraft then flew to a clear area north of the camp and entered the Frederic Creek valley. When company ground personnel could not contact the aircraft by radio, they began a ground search, later followed by an aerial search. The searches were hampered by poor weather. The aircraft wreckage was found three days later, about four nautical miles northeast of the camp. The accident occurred at 1706 in daylight conditions. All occupants were fatally injured, and the aircraft was destroyed. The emergency locator transmitter was destroyed on impact and did not transmit a signal. No fire occurred.
Findings as to Causes and Contributing Factors
1. The pilot abandoned his attempt to fly through the pass because of unsuitable weather conditions. He flew into a confined area that required him to manoeuvre the aircraft aggressively to avoid the rising terrain, causing the aircraft to stall.
2. The aircraft weight exceeded the certificated MAUW, and the CG was outside the floatplane aft limit. The out-of-limit weight and balance aggravated aerodynamic stall and produced rapid and uncontrolled aircraft attitudes from which the pilot could not recover before striking the trees.
3. Basic weight and balance of the aircraft was incorrectly recorded in several aircraft documents, leading to remarkable discrepancies in take-off weight and CG calculations. As a result, a pilot could not calculate an accurate weight and balance. In certain conditions, calculations erroneously showed that the aircraft was below maximum allowable gross weight.
Accident investigation:
 |
|
Sources:
http://www.tsb.gc.ca/eng/rapports-reports/aviation/2001/a01p0194/a01p0194.asp
http://www.dhc-2.com/id457.htm
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 27-Sep-2008 01:00 | ASN archive | Added |
| 07-Mar-2009 11:59 | harro | Updated |
| 19-Feb-2014 16:11 | TB | Updated [Location, Source, Damage, Narrative] |
| 23-Oct-2023 19:43 | harro | Updated [[Location, Source, Damage, Narrative]] |
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