They found it!
From here:
http://milwaukee.bizjournals.com/milwau ... st=b_ln_hl
Carnauba airplane wreckage found
The Business Journal of Milwaukee - 2:29 PM CDT Wednesday
The Johnson family has succeeded in its quest to find the wreckage of the original Carnauba airplane, a 1930s vintage aircraft that played a key role in S.C. Johnson & Son Inc.'s early history.
The wreckage has been found off the shores of Manokwari Bay, Papua, Indonesia in 90 feet of water in a debris field, according to a statement from the company. Fisk Johnson, chairman and chief executive officer of the Racine-based family-owned company led the expedition.
Johnson was joined on the dive trip with his brother, Curt Johnson, chairman of JohnsonDiversey, Inc., Sturtevant, and his sister, Helen Johnson-Leipold, chairwoman and CEO of Johnson Outdoors Inc., Racine, and chairwoman of Johnson Financial Group, Racine. Their mother, Gene Johnson, the widow of the late Samuel C. Johnson, also took part in the trip.
Fisk Johnson and his family embarked on an expedition June 27 to search for the wreckage of the Sikorsky 38 aircraft. Johnson's late grandfather, H.F. Johnson, Jr., flew the amphibious plane 15,000 miles to Brazil in 1935, searching for a sustainable source of wax -- the Carnauba palm tree.
After the expedition to Brazil, the plane was sold to a petroleum company and crashed off the coast of Indonesia shortly after takeoff during a flight in 1938. The pilot, not related to the Johnson family, swam to shore and survived, but the plane was not recovered despite extensive searches, including a 1997 Johnson family dive expedition.
"Seeing the original plane for the first time, resting deep under the ocean, was magical," Fisk Johnson said. "We've all dreamt of the moment that would finalize Carnauba's incredible journey. Now that it's here, words simply can't capture this experience. It was as if Dad was with us. We could feel his spirit and his love of adventure."
Although plans for the wreckage have yet to be determined, Johnson has previously said that he hoped to be able to relocate part or all of it to the new building being constructed to honor his father. The building will display the replica Carnauba aircraft that Samuel Johnson and his sons flew to Brazil in 1998 when retracing the famed 1935 adventure.