Does anybody have experience deicing the inside/intake of a engine nacelle between the heated engine lip and the fan blades.
During the extensive ground delays associated with heavy snowfalls we've observed some rather excessive ice buildups inside the nacelle and it has damaged the fan blades on occasion. 2" thick accumulations were noted several times (reported as 3" but lets keep it real)
The ground heaters are too slow in melting the ice so now we're thinking of using glycol applied with a low pressure sprayer. There are obvious engine and cabin air contamination concerns so we'd rather not go the glycol route but I can't think of any other reasonable solution.
Anybody have any suggestions or cautions with respect to using glycol?