76-03-04 RAVEN INDUSTRIES, INC.: Amendment 39-2508. Applies to Raven Model RX-6 hot air balloons certificated in all categories.
Compliance required before further flight.
To prevent cracking and breaking of the polyethylene gondola liner, accomplish the following:
Install a placard on the instrument panel in clear view of the pilot, stating, "Operation limited to ground surface temperatures of 40 degrees F and above".
The hot air balloon may be operated only when ground surface temperature is at or above 40 degrees F until modifications to reinforce the gondola liner, to be made available by Raven Industries, Inc., are installed.
This amendment becomes effective February 13, 1976.