ASN Wikibase Occurrence # 289919
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| Date: | Wednesday 3 July 2013 |
| Time: | 05:05 LT |
| Type: |  PZL M-18B Dromader |
| Owner/operator: | Valley Air Service Inc |
| Registration: | N7643J |
| MSN: | 1Z025-18 |
| Year of manufacture: | 1984 |
| Total airframe hrs: | 6523 hours |
| Engine model: | Garrett AiResearch TPE331 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Caldwell, Idaho -
 United States of America
|
| Phase: | Take off |
| Nature: | Agricultural |
| Departure airport: | Caldwell, ID (ID00) |
| Caldwell, ID (ID00) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot reported that, when he applied power for takeoff on an aerial application flight, the airplane seemed to accelerate normally until the tailwheel lifted off the ground. He adjusted the power lever forward, but the torque did not seem to increase. The pilot stated that, at that point, it was "unlikely" that the airplane would lift off the ground before it reached the end of the runway but that it was "too late to abort" the takeoff. The pilot advanced the power lever full forward and held it there. He then jettisoned the applicant load and simultaneously pulled back on the control stick. The main landing gear wheels lifted off the ground but the tailwheel did not. The airplane subsequently collided with a fence and came to rest in a river. A postaccident examination of the engine revealed no evidence of mechanical failures or malfunctions that would have precluded normal operation. An 8-knot tailwind existed at the time of the takeoff, which most likely resulted in the airplane's performance deficiency. The pilot further reported that "a more prompt recognition of the problem and an earlier decision to dump the load [of applicant] may possibly have prevented the aircraft from hitting the fence."
Probable Cause: The pilot's improper decision to continue the takeoff with a tailwind after he recognized a performance problem with the airplane and his delayed action to dump the chemical load.
Accident investigation:
 |
|
Sources:
NTSB WPR13LA308
History of this aircraft
Other occurrences involving this aircraft
| 27 July 1996 | N7643J | Private | 0 | Mcgehee, AR | |
sub |
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 05-Oct-2022 19:48 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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