Flugunfall 04 APR 1986 einer IAI 1124A Westwind II N50SK

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Accident

Last updated: 24 May 2013

Status:	Schlussbericht
Datum:	04 APR 1986
Zeit:	19:22 CST
Flugzeugtyp:	IAI 1124A Westwind II
Betrieben durch:	Integerresources Inc. & Drayton Ass.
Gemietet von :	Drayton Associates
Kennzeichen:	N50SK
Werknummer:	309
Baujahr:
Betriebsstunden:	2745
Triebwerk:	2 Garrett TFE731-3-1G
Besatzung:	Todesopfer: 2 / Insassen: 2
Fluggäste:	Todesopfer: 5 / Insassen: 5
Gesamt:	Todesopfer: 7 / Insassen: 7
Sachschaden:	Zerstört
Konsequenzen:	Written off (damaged beyond repair)
Unfallort:	Redwater, TX (USA)
Flugphase:	Während des Fluges (ENR)
Betriebsart:	Geschäftsflug
Flug von:	Dallas-Redbird Airport, TX (RBD), USA
Flug nach:	Teterboro Airport, NJ (TEB/KTEB), USA

Unfallbericht:
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

Informationsquelle:
» NTSB

Sicherheitsempfehlungen

NTSB issued 4 Safety Recommendations

Show all AD's and Safety Recommendations

Fotos

Map

This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Dallas-Redbird Airport, TX to Teterboro Airport, NJ as the crow flies is 2202 km (1376 miles).

This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.

languages:

Issued: 16-FEB-1988	To: FAA	A-88-020
AMEND CHAPTER 2, SECTION 6, PARAGRAPH 2-101, OF THE AIR TRAFFIC CONTROL HANDBOOK, 7110.65E, TO REQUIRE AIR TRAFFIC CONTROLLERS TO FREQUENTLY BROADCAST THE SIGNIFICANT HAZARDOUS WEATHER REPORTS THAT ARE IN EFFECT. (Closed - Unacceptable Action)
Issued: 16-FEB-1988	To: FAA	A-88-021
AMEND CHAPTER 4, SECTION 7, PARAGRAPH 343, SUBPARAGRAPH (1)(H) OF THE AIRMAN\'S INFORMATION MANUAL TO INCLUDE AIRBORNE WEATHER RADAR AS AN ITEM OF EQUIPMENT WHOSE COMPLETE OR PARTIAL LOSS OF CAPABILITY SHOULD BE REPORTED TO AIR TRAFFIC CONTROL. (Closed - Acceptable Action)
Issued: 16-FEB-1988	To: FAA	A-88-022
AMEND CHAPTER 2, PARAGRAPH 2-7 OF THE AIR TRAFFIC CONTROL HANDBOOK, 7110.65E, TO INCLUDE AIRBORNE WEATHER RADAR EQUIPMENT AS AN IN-FLIGHT EQUIPMENT LOSS OR MALFUNCTION COVERED BY THIS PARAGRAPH. (Closed - Acceptable Action)
Issued: 16-FEB-1988	To: FAA	A-88-023
EXPEDITE THE IMPLEMENTATION OF THE HAZARDOUS IN-FLIGHT WEATHER ADVISORY SERVICE PROGRAM IN ALL AIR ROUTE TRAFFIC CONTROL CENTERS WITHIN THE CONTERMINOUS UNITED STATES, PRIOR TO THE SUMMER CONVECTIVE WEATHER SEASON OF 1988. (Closed - Acceptable Alternate Action)