Gentlemen,
Me and my co-builders finally got the DAR to the hangar today, and about 3 years from start to finish, we are finally approved to fly (pending just a tad more paperwork.)
In any case, when the DAR was on his back looking at the belly he showed me what looked like corrosion from battery acid on four screws on the belly of the plane. He asked if there was some battery powered device above the screws (which were in a rectangular configuration.) When I double checked inside the aircraft, it confirmed that the corrosion (which takes the form of a white powdery residue) was on the exterior of the screws which held my Whelen strobe power supply to its base plate, and then to the floor of the empenage.
There is no acid or other fluid in a Whelen power supply, so I naturally ask this question: why the **** would the exterior of the stainless steel screws holding a power supply to an aluminum aircraft appear corroded?
Since the aircraft has not been flown yet, and our "testing" of those particular lights has not taken more than 60 seconds total since their installation, I cannot fathom what is taking place.
Any ideas?
dahugo
Me and my co-builders finally got the DAR to the hangar today, and about 3 years from start to finish, we are finally approved to fly (pending just a tad more paperwork.)
In any case, when the DAR was on his back looking at the belly he showed me what looked like corrosion from battery acid on four screws on the belly of the plane. He asked if there was some battery powered device above the screws (which were in a rectangular configuration.) When I double checked inside the aircraft, it confirmed that the corrosion (which takes the form of a white powdery residue) was on the exterior of the screws which held my Whelen strobe power supply to its base plate, and then to the floor of the empenage.
There is no acid or other fluid in a Whelen power supply, so I naturally ask this question: why the **** would the exterior of the stainless steel screws holding a power supply to an aluminum aircraft appear corroded?
Since the aircraft has not been flown yet, and our "testing" of those particular lights has not taken more than 60 seconds total since their installation, I cannot fathom what is taking place.
Any ideas?
dahugo
