66-03-02 HUGHES: Amdt. 39-181, Part 39, Federal Register January 14, 1966. Applies to Models 269A, 269A-1, and 269B Helicopters.
Compliance required within the next 100 hours' time in service after the effective date of this AD, unless already accomplished.
To eliminate a possible navigational hazard, accomplish the following:
(a) On helicopters with the 12-volt electrical system, remove the existing tail position light bulb and replace it with General Electric No. 1777 bulb or FAA-approved equivalent.
(b) On helicopters with the 24-volt electrical system, remove the existing bulb and replace it with a Grimes No. 1683 bulb or FAA-approved equivalent.
(Hughes Service Notices Nos. 2A-54 (269A), 2A-1-21 (269A-1 and (2B-22), (269B) dated October 28, 1965, pertain to this same modification.)
This directive effective January 14, 1966.