Statuts:	Enquête Officielle
Date:	22 JAN 1943
Heure:	15:15
Type/Sous-type:	Douglas DC-3A-399
Compagnie:	Pan American Grace Airways
Immatriculation:	NC33645
Numéro de série:	4124
Année de Fabrication:	1941
Heures de vol:	3179
Moteurs:	2 Pratt & Whitney R-1830
Equipage:	victimes: 4 / à bord: 4
Passagers:	victimes: 10 / à bord: 11
Total:	victimes: 14 / à bord: 15
Dégats de l'appareil:	Perte Totale
Conséquences:	Written off (damaged beyond repair)
Lieu de l'accident:	NE of Chaparra (Pérou)
Phase de vol:	En vol (ENR)
Nature:	Transport de Passagers Nat.
Aéroport de départ:	Arequipa-Rodriguez Ballon Airport (AQP/SPQU), Pérou
Aéroport de destination:	Lima-Callao International Airport (LIM/SPIM), Pérou
Numéro de vol:	9

Détails:
Trip No. 9 departed from Santiago, Chile at 05:30 with Lima, Peru as its destination. The flight arrived at Arequipa, Peru at 13:59 for an intermediate stop. It left Arequipa at 14:09. At 14:25, the captain reported to Arequipa that the flight was "leaving control zone altitude 12,200, climbing on instruments, course 290."
Fifty minutes later, the DC-3 struck a mountain peak at an elevation of about 13,000 feet.

PROBABLE CAUSE: "Action of the pilot in continuing the flight on instruments in the overcast, contrary to company flight procedure of which, according to the evidence, the pilot was aware. CONTRIBUTING FACTORS: 1. Absence of adequate flight dispatch control by the company.; 2. Failure of the company to inaugurate and maintain written flight and operating procedures in such a form as to be constantly available for the guidance of pilots and dispatchers."

Sources:
» CAB File No. 408-43