From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
A reduction in the sectional thickness of pivots compared to the standard part.
| Identifier | ExFiles\Box 82\3\ scan0252 | |
| Date | 9th May 1935 guessed | |
| Rm{William Robotham - Chief Engineer} We find there is a reduction in sectional thickness of A' Pivots as compared with standard this variation occurs at point of failure Drawn, correction is being dealt with RAC | ||