In Rod's report
http://www.atsb.gov.au/media/24341/a...401043_001.pdf BASI mentions no less than 19 times the use of unapproved performance charts. They were in fact approved.
This had absolutely ZERO in contributing to the accident. There were other similar smoke screen/diversions.
The circumstances that led to this accident were;
1) Port engine failure caused by an incorrectly fitted thrust washer (see page 12 of the report).
2) Port propellor failed to fully feather (see page 15 of the report).
3) Incredible profile drag attributed to a very old airframe which degraded performance so much that continued flight was not a possibility.
Here is a link to the Dutch Dakota Assoc fatal DC3 accident that occurred with very similar circumstances. Very interesting to see what their accident investigation concluded.
dda