83-15-03 PICCARD: Amendment 39-4694. Applies to Model AX-6 balloons certificated in any category.
Compliance: Within the next 50 hours time-in-service after the effective date of this AD, unless already accomplished.
To reduce the time for pilot light extinguishment after shutoff and prevent damage to main fuel systems modified per General Balloon Corporation Service Letter No. 8 or AD 82-13- 02, accomplish the following:
a) Modify P/Ns 5041-X10, 8201-23 or GBC 156 propane jet by drilling out the orifice with a #65 drill (.035 inch diameter) in accordance with Don Piccard Balloons, Inc., Service Letter No. 9 dated May 10, 1983.
NOTE: The X in P/N 5041-X10 is a shaded square and is part of the part number.
b) If blast valve handle P/N 5041-7 is installed, modify or replace with a P/N PSP 608 handle per Don Piccard Balloon Corporation Service Letter No. 10 dated May 10, 1983.
c) If a main fuel quick-shutoff valve is installed, either remove in its entirety or modify the installation in accordance with Don Piccard Balloons, Inc., Service Letter No. 10 dated May 10, 1983.
d) An equivalent means of compliance with this AD may be used if approved by the Manager, Chicago Aircraft Certification Office, ACE-115C, 2300 East Devon Avenue, Room 232, Des Plaines, Illinois 60018; telephone (312) 694-7357.
This AD supersedes AD 82-13-02, Amendment 39-4406.
This amendment becomes effective on August 4, 1983.