78-12-07 PIPER: Amendment 39-3235. Applies to Piper Aircraft PA-30 and PA-39 with Serial Numbers 30-1 through 30-2000 and 39-1 through 39-155 which have had a right fuel selector valve P/N 492137 (Airborne P/N 1H7-8) changed since April, 1977, with a valve containing the designation "4C" in the valve serial number.
Compliance required before further flight unless already accomplished.
1. Replace any right fuel selector valve, Piper P/N 492137 (Airborne P/N 1H7-8) containing the designation "4C" in the valve serial number with a serviceable valve without the "4C" designation.
2. The replacement fuel selector valve shall be installed and adjusted in accordance with PA-30/39 Service Manual.
(Piper Service Bulletin No. 597 dated April 19, 1978, pertains to this subject.)
This amendment is effective June 19, 1978.