Pan American World Airways Flight 202 was a Boeing 377 Stratocruiser aircraft that crashed in the Amazon Basin about 281 nautical miles (320 mi; 520 km) southwest of Carolina, Brazil, on April 29, 1952.

The wreckage was not found until May 1, when a Pan American Curtiss Commando freighter reported finding it in Caraja Indian territory 281 nautical miles (520 km) southwest of Carolina.

[3] "The burned, broken wreckage of the Pan American Stratocruiser that vanished Monday night was found in northern Brazil today," reported The New York Times in its May 2, 1952, issue.

An air hunt over 320,000 square miles (830,000 km2) of jungle, river basins and plateau land finally located the ruins in the Indian country between the cities of Barreiras and Carolina.

Pan American officials said a Panair do Brasil airliner circled the scene of the crash; its pilot reported extensive evidence of fire and said he saw two of the big plane's engines lying 1,600 feet (490 m) apart in the hilly, heavily wooded area.

[4][not specific enough to verify] Later, a 27-man investigation team flew via seaplane to Lago Grande, a tiny Indian village on the Araguaia River less than 40 nautical miles (50 mi; 70 km) from the wreckage, with the intention of trekking to the accident site.

A properly equipped and provisioned second investigation team built a base camp northwest of Lago Grande and finally reached the wreckage on August 15.

3 and 4 engines (normally attached to the starboard wing), had fallen in an area of dense forest about 13 nautical miles (15 mi; 24 km) northwest of the base camp.

[5] In this case, investigators hypothesized that the propeller failure caused the engine to experience highly unbalanced loads and it eventually separated from the aircraft, precipitating an in-flight breakup.