67-19-05 PIPER: Amdt. 39-427, Part 39, Federal Register June 2, 1967. Applies to Type PA-30 airplanes, Serial Numbers 30-853, 30-902 Through 30-1470, Which Incorporate Factory Installed Oxygen System or Piper Oxygen Kits 756981 or 757100.
Compliance required within the next 25 hours' time in service after the effective date of this Airworthiness Directive, unless already accomplished. To prevent cracking of the oxygen cylinder mounting channels and prevent the rudder control cable from rubbing on the oxygen cylinder rear retaining strap, accomplish the following:
(a) On airplanes, Serial Numbers 30-853, 30-902 through 30-1454, modify the oxygen cylinder mounting installation in accordance with the Installation Instructions contained in Piper Oxygen Cylinder Mounting Modification Kit No. 757094 or equivalent modification, approved by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region.
(b) On all airplanes modify the Oxygen Cylinder Rear RetainingStrap P/N 758109 and remove the Rubber Strip P/N 13945-85 as shown on the sketch contained in Piper Service Bulletin No. 246, dated March 21, 1967, or equivalent modification approved by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region.
(c) Upon request, with substantiating data submitted through an FAA maintenance inspector, compliance time may be increased by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region.
(Piper Service Bulletin No. 236, dated December 29, 1966, also pertains to the subject of paragraph (a)).
This amendment effective June 7, 1967.