Updated Articles

  1. SL-176 Piper PA-20/PA-22 Stabilizer Adjusting Mechanism

    Last Updated: 04/12/2022 in Service Bulletins, Letters and Memos Piper J-2 thru PA-25 Piper PA-22
    Suggestions to alleviate troubles with the stabilizer adjusting mechanism.

  2. SL-214 Piper PA-20/PA-22 Navigation Light Switch

    Last Updated: 04/12/2022 in Service Bulletins, Letters and Memos Piper J-2 thru PA-25 Piper PA-22
    Update to Service Letter #209.

  3. SL-209 Piper PA-20/PA-22 Navigation Light Switch

    Last Updated: 04/12/2022 in Service Bulletins, Letters and Memos Piper J-2 thru PA-25 Piper PA-22
    Incorporating a heavy duty navigation light switch, Piper part number 484-575, manufactured by the Ohmite Manufacturing Company.

  4. SL-194 Piper PA-20/PA-22 Sealing of Firewalls

    Last Updated: 04/12/2022 in Service Bulletins, Letters and Memos Piper J-2 thru PA-25 Piper PA-22
    Instructions for sealing any gaps or holes in the firewalls with non-hardening fireproof putty.

  5. SL-136A Piper PA-20/PA-22 Fuel Line Chafing and Fuel Valve Operation

    Last Updated: 04/12/2022 in Service Bulletins, Letters and Memos Piper J-2 thru PA-25 Piper PA-22
    Inspection of the aluminum fuel lines forward of the fuel valve.

  6. SB-351 Piper PA-20/PA-22 Fuel Line Replacement

    Last Updated: 04/12/2022 in Service Bulletins, Letters and Memos Piper J-2 thru PA-25 Piper PA-22
    A recent survey of PA-20 and PA-22 aircraft has revealed that a certain number of these airplanes are operating with the strainer to carburetor flexible fuel line in a deteriorated condition.

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

    Last Updated: 04/12/2022 in Service Bulletins, Letters and Memos Piper J-2 thru PA-25 Piper PA-22
    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.

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

    Last Updated: 04/12/2022 in Service Bulletins, Letters and Memos Piper J-2 thru PA-25 Piper PA-22
    Instructions for correcting an incorrectly installed pointer on the fuel selector valve.

  9. SB-123 Piper PA-20/PA-22 Front Spar Interference

    Last Updated: 04/12/2022 in Service Bulletins, Letters and Memos Piper J-2 thru PA-25 Piper PA-20
    Inspection to determine if there is interference between the inboard end of the front spar web and the aileron pulley attachment bolt in the area of the front wing hinge fitting.

  10. SB-123 Piper PA-20/PA-22 Front Spar Interference

    Last Updated: 04/12/2022 in Service Bulletins, Letters and Memos Piper J-2 thru PA-25 Piper PA-22
    Inspection to determine if there is interference between the inboard end of the front spar web and the aileron pulley attachment bolt in the area of the front wing hinge fitting.
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