• AD, Primary Flight Control Cable Retirement

    This is a fairly new AD that is applicable here in Oz, but I am raising it here because the clock is ticking down on this one.
    The compliance date is 01 Jan2018, but this means that it will involve any airplane that has an annual inspection after 01 Jan 2017.

    Background info;
    Two Bonanzas, (coincidentally, maintained by the same shop) had a failure of an elevator cable. This led to two defect reports, and a subsequent investigation.
    The end result is that CASA have decided that ALL control cables with stainless fittings are suspect, and must be replaced EVERY 15 YEARS.

    This applies to almost every airplane, irrespective of size, make, hours, or handling history. (How many B737,B747's do Qantas have?)

    The AD is here;

    For Mouse owners, this means all elevator cables, all aileron cables, rudder cables and trim cables. Depending on your mechanics interpretation of the word "primary", this could also include interconnect cables, autopilot servo cables and others.

    Apart from the cost of the cables themselves, (several AMU's), the installation time is really significant and will add several more AMU's to the total job. Remember, this is EVERY 15 years.

    I don't know what the flow-on effect will be with the FAA, but these CASA guys love to share stories with their brothers.

    Comments 4 Comments
    1. Unclerap's Avatar
      Unclerap -
      Hope not, but if it comes to pass this will be big bucks for every mouse. We did a Lance AD last year and it was about a week of labor to do the elevator cable. As soon as you fritz with the rudder/aileron innerconnect you risk trim issues bigtime.

      Any BAC A&Ps out there that have done a mouse cable replacement? If so, labor estimate?

    1. Byron's Avatar
      Byron -
      I had two cables replaced last annual due to wear, elevator in tail cone and a section of the aileron cables in the center pedestal area. 10 hrs for elevator, 26.5 hrs for aileron, including rigging. They got the rigging right first time, which I was very happy about.

    1. Bill B's Avatar
      Bill B -
      Wow, replacing all primary flight control cables would be very labor intensive, not to mention expensive if you bought the parts from Beech. I just tried to get a price for aileron cables on the Beech site and was directed to customer service, that means the price just went up.

      I replaced both the flap control cables about 10 years ago I think it took me about 10 hours. Had to rig the rudder and stab cables a while back and that took all day.
    1. Byron's Avatar
      Byron -
      I think the cables for mine came from McFarlane and weren't excessively spendy, as aircraft stuff goes. I'm not sure whether they stock them or the shop gave dimensions. In any case the labor was far more expensive.
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