ASN logo
Last updated: 5 July 2020
Statuts:Enquête Officielle
Date:mardi 13 janvier 1998
Heure:08:10
Type/Sous-type:Silhouette image of generic LJ25 model; specific model in this crash may look slightly different
Learjet 25B
Compagnie:American Corporate Aviation
Immatriculation: N627WS
Numéro de série: 25-170
Année de Fabrication: 1974
Heures de vol:8943
Moteurs: 2 General Electric CJ610-6
Equipage:victimes: 2 / à bord: 2
Passagers:victimes: 0 / à bord: 0
Total:victimes: 2 / à bord: 2
Dégats de l'appareil: Perte Totale
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:3,2 km (2 milles) E of Houston-George Bush Intercontinental Airport, TX (IAH) (   Etats-Unis d'Amérique)
Phase de vol: En approche (APR)
Nature:Convoyage
Aéroport de départ:Houston-William P. Hobby Airport, TX (HOU/KHOU), Etats-Unis d'Amérique
Aéroport de destination:Houston-George Bush Intercontinental Airport, TX (IAH/KIAH), Etats-Unis d'Amérique
Détails:
Descended below the glideslope during the second runway 26 approach, struck trees and crashed. The first officer's instruments were displaying a false full fly-down glideslope indication because of a failed amplifier in the navigation receiver.

Probable Cause:

PROBABLE CAUSE: "The flight crew's continued descent of the airplane below the glideslope and through the published decision height without visual contact with the runway environment. Also, when the captain encountered difficulty tracking the localizer course, his improper decision to continue the approach by transferring control to the first officer instead of executing a missed approach contributed to the cause. In addition, the following were factors to the accident: (1) American Corporate Aviation's failure to provide an airworthy airplane to the flight crew following maintenance, resulting in a false glideslope indication to the first officer; (2) the flight crew's failure to follow company crew coordination procedures, which called for approach briefings and altitude callouts; and (3) the lack of an FAA requirement for a ground proximity warning system on the airplane. "

Accident investigation:
cover
Investigating agency: NTSB
Status: Investigation completed
Duration: 1 year and 3 months
Accident number: FTW98MA096
Download report: Summary report

Sources:
» NTSB


Opérations de secours

NTSB issued 2 Safety Recommendations

Show all...

Photos

Add your photo of this accident or aircraft

Plan
Ce plan montre l'aéroport de départ ainsi que la supposée destination du vol. La ligne fixe reliant les deux aéroports n'est pas le plan de vol exact.
La distance entre Houston-William P. Hobby Airport, TX et Houston-George Bush Intercontinental Airport, TX est de 38 km (24 miles).
Accident location: Approximate; accuracy within a few kilometers.

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.
languages: languages

Share