Yes, the low level Sea Eagle operations over the sea meant that the shortcomings of the windscreen wash system were highlighted. The fluid disappeared in the airflow before the single wiper could benefit. The aircrew had discovered that operating it with a bootful of rudder spread it better allowing the wiper to do its proper job. The unknown consequence was the high fatigue loading on the fin attachment fittings.
We still had one jet in service with the OLM system fitted but since the wash wipe operation wasn't signalled on the system - why would it be - that hadn't given us any early indication. There was however a lot of assessment of whether we could use the OLM data in the subsequent investigation. We did do some work looking at potential options, with a choice between strengthening the fin fittings or fitting a new wash wipe system (which was a novel business case) as well as advising the aircrew not to use excessive rudder when cleaning the screen but the problem eventually went away with the jets retirement.