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Last updated: 8 December 2021
Statuts:Enquête Officielle
Date:mercredi 9 août 1995
Heure:20:14
Type/Sous-type:Silhouette image of generic B732 model; specific model in this crash may look slightly different
Boeing 737-2H6
Compagnie:Aviateca
Immatriculation: N125GU
Numéro de série: 23849/1453
Année de Fabrication: 1987-09-26 (7 years 11 months)
Heures de vol:16645
Cycles:20323
Moteurs: 2 Pratt & Whitney JT8D-15A
Equipage:victimes: 7 / à bord: 7
Passagers:victimes: 58 / à bord: 58
Total:victimes: 65 / à bord: 65
Dégats de l'appareil: Détruit
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:24 km (15 milles) NE of San Salvador (   Le Salvador)
Élévation des lieux de l'accident: 1800 m (5906 feet) amsl
Phase de vol: En approche (APR)
Nature:Transport de Passagers Intern.
Aéroport de départ:Guatemala City-La Aurora Airport (GUA/MGGT), Guatémala
Aéroport de destination:San Salvador-Comalapa International Airport (SAL/MSLP), Le Salvador
Numéro de vol: 901
Détails:
Flight GUG901 (Miami-Guatemala City-San Salvador-Managua-San Jose) encountered bad weather (heavy rain, thunderstorms) while approaching San Salvador. The crew therefore diverted off Airway G346 to avoid the thunderstorms. The aircraft should then have passed overhead the airport and turn right downwind for an ILS approach to runway 07. There seemed to be some confusion as to the position of the aircraft. The aircraft was at 5000 feet (as cleared by ATC) when the GPWS sounded. Full power was applied, but the Boeing struck the San Vicente Volcano (also known as Chinchontepec, 2181 m high) at an altitude of 1800 m.

Probable Cause:

PROBABLE CAUSE: "The Direccion General De Transporte Aereo determines that the probable cause of the accident was the flight crew's lack of situational awareness in relation to the 7,159 foot obstruction, the flight crew's decision to descend below the MSA while deviating from a published transition or approach, and the ambiguity of position information between both the flight crew and the air traffic controller which resulted in the controller's issuance of an altitude assignment that did not provide terrain clearance. Contributing to the accident was the failure of the First Officer to direct his concern of reported positions to the Captain in a more direct and assertive manner and the failure of the controller to recognize the aircraft's reported position relative to obstructions and give appropriate instructions/warnings. An ineffective CRM program at Aviateca also contributed to the accident ."

Accident investigation:
cover
Investigating agency: AAC El Salvador
Status: Investigation completed
Duration: 58 days (2 months)
Accident number: Final report
Download report: Final report

Sources:
» Air Safety Week 14 August 1995 (p. 2)
» Flight International 23-29 August 1995 (12)
» NTSB


Photos

photo of Boeing-737-2H6-9M-MBM
accident date: 09-08-1995
type: Boeing 737-2H6
registration: 9M-MBM
 

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 Guatemala City-La Aurora Airport et San Salvador-Comalapa International Airport est de 202 km (126 miles).
Accident location: Exact; as reported in the official accident report.

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

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