Originally Posted by
Clare Prop
BTW fuel gauges are calibrated every two years
Thanks, I've done this on a few machines but couldn't recall the requisite interval for Cherokees.
Having said that there were a few that developed issues (or continued to have them) in the intervals between checks, hence their reputation for unreliability - although as a few have remarked here, some were quite good. I'm fairly sure they didn't make the MEL (remember the Gimli Glider!), and for the operators I knew they usually weren't taken seriously, preferring instead to ensure the tanks were dipped regularly. That works well until you have an in-flight leak...
FP.