64-14-03 DORNIER: Amdt. 746 Part 507 Federal Register June 13, 1964. Applies to All Model DO-28 Aircraft Up to and Including Serial Number 3060.
Compliance required as indicated.
It has been found that the generator and battery relays remain inoperative with low battery voltage so that the electrical system remains without power supply. To correct this condition, accomplish the following:
Within the next 50 hours' time in service, change the electrical wiring as specified by Dornier Technical Bulletin 28-6 dated December 7, 1962.
(Dornier Technical Bulletin No. 28-6 dated December 7, 1962 covers this same subject.)
This directive effective July 13, 1964.