ASN Wikibase Occurrence # 327018
| Date: | Friday 4 April 1986 |
| Time: | 19:22 |
| Type: |  IAI 1124A Westwind II |
| Owner/operator: | Integerresources Inc. & Drayton Ass. |
| Registration: | N50SK |
| MSN: | 309 |
| Year of manufacture: | 1980 |
| Total airframe hrs: | 2745 hours |
| Engine model: | Garrett TFE731-3-1G |
| Fatalities: | Fatalities: 7 / Occupants: 7 |
| Aircraft damage: | Destroyed, written off |
| Category: | Accident |
| Location: | Redwater, TX -
 United States of America
|
| Phase: | En route |
| Nature: | Executive |
| Departure airport: | Dallas-Redbird Airport, TX (RBD/KRBD) |
| Teterboro Airport, NJ (TEB/KTEB) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
Westwind N50SK departed Dallas-Redbird Airport at 18:56 CST under an IFR flightplan bound for Teterboro.
Upset at FL370 as a result of clear air turbulence associated with a VIP level 6 thunderstorm; entered an uncontrolled descent through the cell. Left main landing gear door broke off due to overstress striking the left horizontal stabilizer which separated.
PROBABLE CAUSE:
flight/nav instruments,weather radar system..failure,partial
weather condition..thunderstorm
weather condition..turbulence,clear air
weather condition..gusts
weather condition..downdraft
preflight briefing service..improper..atc personnel(fss)
hazardous weather advisory..not issued..atc personnel(fss)
in-flight weather advisories..not issued..atc personnel(fss)
information unclear..atc personnel(fss)
CONTRIBUTING FACTORS:
operation with known deficiencies in equipment..continued..pilot in command
light condition..dark night
excessive workload (task overload)..pilot in command
excessive workload (task overload)..copilot/second pilot
Accident investigation:
 |
|
Sources:
NTSB
Location
Revision history:
| Date/time | Contributor | Updates |
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