Updated Articles

  1. SB-143 Piper Magneto Ground Wire Attachment Nut

    Instructions for safetying the terminal attachment nut on the magneto ground wire.
  2. SB-141 Piper Fuel Selector Valve

    Possibility of the fuel valve detent pins in a few valves were improperly centered, thus preventing positive indication of valve position.
  3. SB-135 Piper PA-20/PA-22 Fuel Selector Valve Pointer

    Instructions for correcting an incorrectly installed pointer on the fuel selector valve.
  4. SB-124 Piper PA-22 Landing Gear Reinforcement

    Modification and reinforcement of landing gear to prevent cracks in the leading edge of the streamlined tube where it joins the inboard end of the axle.
  5. SB-122 Piper Fuel Grade Specification for Lycoming O-290-D2 Engines

    Correction to the fuel grade specification in flight manuals and fuel tank placards for the Lycoming O-290-D2 engines.
  6. SB-121 Piper PA-18/PA-20/PA-22 Oil Radiator Lines

    Misalignment of the oil radiator lines on the Lycoming 0-290-D2 135 horsepower engines at the point where they pass through the rear engine baffle.
  7. SB-120 Piper J-3/PA-11 Replacement of Front and Rear Lift Strut Forks and Barrels

    Failures of lift struts caused by abuse, failure to replace lift struts after ground accidents, and the use of damaged parts from scrapped airplanes as service replacement parts.
  8. SB-119 Piper PA-22 Freezing of Nose Wheels

    Solution to water freezing in the oleo housing, which causes the nose wheel to become inoperative in regards to directional steering both on the ground and in the air.
  9. SB-118 Piper Battery Box Lid Modification

    Modifying the battery box lid to eliminate the possibility of "shorting" the battery terminal wing nuts.
  10. SB-117B Piper PA-20/PA-22 Chafing of Master Switch Wires

    Immediate inspection of clearance between the aileron cable and the master switch wires (from the master switch to the ammeter).