58-16-01 PIPER: Applies to Model PA-20 Serial Numbers 20-1 to 20-1121 Inclusive, and Model PA-22 Serial Numbers 22-1 to 22-6087 Inclusive, That Have Cigar Lighters Installed.
Compliance required within next 100 hours of operation.
To preclude the possibility of blowing the master fuses, due to a short circuit caused by a faulty cigar lighter element, install a 15-ampere standard fuse, Bussman No. AGC-15 or equivalent, in the wire between the cigar lighter and the ammeter.
(Piper Service Bulletin Number 163A covers the same subject.)