Came across similar problem re low volt light & EASA, fortunately the CAA surveyor managed to find a way of giving approval just using the drawing which comes with the assembly. Don't know how though!
Do you know if this is still a UK requirement only? Seems strange that the CAA can require the fitment of the LV system when the manufacturer doesn't specify it. Sort of runs contrary to the argument that manufacturer's recommendations (seat belts) must now be satisfied and yet they don't recommend this item.

As far as I know the low volts loght is still only a UK requirement although they have now dropped the starter warning light requirement.

I first ran foul of this about 4 years ago when I was transfering a Dutch registered Seneca to the UK reg. EASA would not allow us to put in a minor mod for the job but required a major mod because it required a change to the flight manual???. The major mod could only be certified by a design approved company & they wanted to charge us £3000.00 (as a favour because we were good customers!). It was the only way we could get it cleared.

I took EASA to task over this & wrote to M.Goudou (grand fromage) to ask why easa were so strict over a mod which was only a CAA requirement. I can't even remember the reply but it was full of references to EASA rule numbers. Surfice to say it got us nowhere.

A little later they relaxed the rule ie not requiring a major mod, but by this time my customer was £3000 lighter with no chance of a refund.

Who said EASA do not make it up as they go along?.

Please, would you research that a bit more and let us know how it was done - inconsistencies like this can work in our favour if we know the hows and whys and wherefores!

Malcolm

I'll do some behind the scenes research and if possible let you know how it was done, providing it doesn't upset the apple-cart of course.