by urrengr2003
When did the company complete the program of repositioning the MU hoses from above the deck to the front pilots. Recently saw a pic of several 5500's taken in 1968 with hoses above the pilots. I came on the scene in 1964 and the only 5300 hundreds I came across at that time with the high hoses were those units equipped with snow plows. What knowledge of this modification program am I missing?