Updated Articles

  1. SB-166 Piper PA-22 Chafing of Master Switch Wires

    Last Updated: 12/14/2021 in Service Bulletins, Letters and Memos Piper J-2 thru PA-25 Piper PA-22
    Inspection of clearance between the pilot's seat and the master switch wires.

  2. SB-165 Piper Aileron Hinge Reinforcing Bracket

    Last Updated: 12/14/2021 in Service Bulletins, Letters and Memos Piper J-2 thru PA-25 Piper J-3
    Replacing aluminum aileron hinge reinforcing bracket with one made of steel, part number 10931-02.

  3. SB-163A Piper PA-20/PA-22 Fusing of Cigar Lighter Circuit

    Last Updated: 12/14/2021 in Service Bulletins, Letters and Memos Piper J-2 thru PA-25 Piper PA-20
    Installing an additional standard fuse (15A Bussman #AGC-15) in the wire between the cigar lighter and the ammeter at the next 100 hour inspection to protect against a short circuit condition.

  4. SB-158 Piper PA-20 Nameplates

    Last Updated: 12/14/2021 in Service Bulletins, Letters and Memos Piper J-2 thru PA-25 Piper PA-20
    Inspection of all PA-20 name plates and those bearing the model designation "PA-20A" be removed and returned to the Factory Service Department for replacement.

  5. SB-157D Piper Lift Strut Fork Inspection and Replacement

    Last Updated: 12/14/2021 in Service Bulletins, Letters and Memos Piper J-2 thru PA-25 All Models
    Provides inspection and fatigue life requirements applicable to the wing lift strut forks.

  6. SB-153A Piper PA-22 Brake Master Cylinder Diaphragm

    Last Updated: 12/14/2021 in Service Bulletins, Letters and Memos Piper J-2 thru PA-25 Piper PA-22
    Failures of the diaphragm in the B711 Scott Master Cylinder used on the PA-22 Tri-Pacer within 300 or 400 hours of operation.

  7. SB-148A Piper PA-18/PA-22 Fuel Tank Caps

    Last Updated: 12/14/2021 in Service Bulletins, Letters and Memos Piper J-2 thru PA-25 Piper PA-18
    A recent design change to the fuel tank caps has created a possible hazard to the venting system and it is therefore requested that the caps be reworked in the following manner.

  8. SB-143 Piper Magneto Ground Wire Attachment Nut

    Last Updated: 12/14/2021 in Service Bulletins, Letters and Memos Piper J-2 thru PA-25 All Models
    Instructions for safetying the terminal attachment nut on the magneto ground wire.

  9. SB-141 Piper Fuel Selector Valve

    Last Updated: 12/14/2021 in Service Bulletins, Letters and Memos Piper J-2 thru PA-25 Piper PA-18
    Possibility of the fuel valve detent pins in a few valves were improperly centered, thus preventing positive indication of valve position.

  10. SB-135 Piper PA-20/PA-22 Fuel Selector Valve Pointer

    Last Updated: 12/14/2021 in Service Bulletins, Letters and Memos Piper J-2 thru PA-25 Piper PA-20
    Instructions for correcting an incorrectly installed pointer on the fuel selector valve.
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