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Last updated: 24 October 2020
Statuts:Enquête Officielle
Date:jeudi 19 juin 1980
Heure:18:49 MST
Type/Sous-type:Silhouette image of generic MD81 model; specific model in this crash may look slightly different
McDonnell Douglas DC-9-81 (MD-81)
Compagnie:McDonnell Douglas
Immatriculation: N1002G
Numéro de série: 48001/917
Année de Fabrication: 1979
Heures de vol:6
Moteurs: 2 Pratt & Whitney JT8D-209
Equipage:victimes: 0 / à bord: 3
Passagers:victimes: 0 / à bord: 0
Total:victimes: 0 / à bord: 3
Dégats de l'appareil: Substantiels
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:Yuma International Airport, AZ (YUM) (   Etats-Unis d'Amérique)
Phase de vol: A l'atterrissage (LDG)
Nature:Test
Aéroport de départ:Yuma International Airport, AZ (YUM/KYUM), Etats-Unis d'Amérique
Aéroport de destination:Yuma International Airport, AZ (YUM/KYUM), Etats-Unis d'Amérique
Détails:
N1002G, the second DC-9-80 series prototype took off from Yuma, AZ at 18:20 for a certification test flight to demonstrate that the plane could be landed safely with a complete failure of its hydraulic systems. The crew were to fly a low approach, go around and another approach with a full stop landing. Both approaches to be flown without hydraulic pressure. The second approach was rejected at about 800 feet agl because the warning light for "parking brakes set" was lit. The aircraft was positioned for another approach to runway 21R. The aircraft touched down at around 175 knots just past the arresting cable, 1,831 feet beyond the landing threshold of the runway. Reverse was used before touchdown of the nosegear. The aircraft yawed and ground looped and ran off the right side of the runway. After the aircraft left the pavement, the left main gear collapsed and the right main gear and the nose gear separated from the aircraft. The aircraft came to rest on its lower fuselage about 50 feet beyond the right edge. Two 50-ton cranes then tried to lift the aircraft; one of the cranes broke and fell on top of the fuselage.

Probable Cause:

PROBABLE CAUSE: "Inadequate procedures established for certification test flight, and the pilot's mismanagement of thrust following the initial loss of directional control"

Accident investigation:
cover
Investigating agency: NTSB
Status: Investigation completed
Duration: 1 year and 3 months
Accident number: NTSB/AAR-81-16
Download report: Final report

Sources:
» NTSB-AAR-81-16


Photos

photo of DC-9-81-N1002G
accident date: 19-06-1980
type: McDonnell Douglas DC-9-81 (MD-81)
registration: N1002G
 

Plan

Les informations ci-dessus ne représentent pas l'opinion de la 'Flight Safety Foundation' ou de 'Aviation Safety Network' sur les causes de l'accident. Ces informations prélimimaires sont basées sur les faits tel qu'ils sont connus à ce jour.
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MD-80

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