PPRuNe Forums - View Single Post - 4th Aug 2018 Junkers JU52 crashed in Switzerland
Old 22nd Nov 2018, 09:26
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jimjim1
 
Join Date: Oct 2007
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On the basis that I might at least look at the pictures I used google translate against the Figure captions before I found onlinedoctranslator.

These seem in some cases clearer than those in the whole doc translation I linked to above.

Figure 1: Wing section with the 4 bars (Source: Operating Instructions Ju 52 / 3m, supplemented
by the SUST)

Figure 2: Motor mount of the left or right motor (Source: Operating instructions
Ju 52 / 3m)

Figure 3: Maintenance program of the Ju 52
The engines had a maximum allowable according to the maintenance program
Operating time to overhaul (Time Between Overhaul - TBO) of 1500
Hours with a tolerance of 10%. In the operating manual of the aircraft engine
The manufacturer's BMW 132 from 1939 states the following: «One
Overhaul should rarely be required before 200 to 300 hours of operation ».

Figure 4: Accident site southwest of Piz Segnas. A mesh square has one side length
of a kilometer. Source of the base map: Federal Office of Topography.

Figure 5: End position of the wreck

Figure 6: Repair in the area of ​​the wing center box, recognizable by the greenish yellow

Structural parts and the golden connection elements.

Figure 7: Repair of the structure of a motor carrier. The half shells became direct
riveted on the thick paint layer.

Figure 8: Lower spar tube of spar I of the left wing. The arrow points to the zone
with cracks in the spar tube.

Figure 9: Detailed view of the crack zone at the lower spar tube of the left wing.

Figure 10: Detail view of the inner side of the lower side of the left wing.

Figure 11: Detail view of the cabin structure at the rear right. Striking are the rotten ones
Wooden floor (yellow marked zone) and the corrosion damage (red arrows).

Figure 12: Corrosion in the area of ​​the wing connection (red arrows)

Figure 13: Marked aging damage on a hose

Figure 14: Fuel hose with date (November 11, 1988)

Figure 15: Cylinder positions 1, 2 and 3 of the left engine with piston.

Figure 16: Cam of the middle motor. The machining marks are clearly visible
(regular, finely grooved surface) and the eruptions on the upper tread.

Figure 17: Engine components stored in a cabinet and not identifiable.
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