AD 66-27-03

66-27-03 BOEING: Amdt. 39-307 Part 39 Federal Register November 5, 1966. Applies to Models 707 and 720 Series Airplanes Equipped With Nylon Tube Conduit in the Tail Cone.

Compliance required as indicated, unless already accomplished.

To prevent fire in the tail cone due to shorted tail navigation light wires, accomplish the following:

(a) Within the next 300 hours' time in service after October 12, 1966, unless already accomplished, inspect tail navigation light wiring for frayed or deteriorated wires and inspect protective nylon tube to ensure that it is secured to bulkhead. Replace frayed or deteriorated wires and secure nylon tube to bulkhead as necessary before further flight.

(b) Repeat the inspection described in (a) every 300 hours' time in service until the following modifications or equivalent modifications approved by the Chief, Aircraft Engineering Division, FAA Western Region are accomplished but not later than 2,250 hours' time in service from theeffective date of this AD

(1) Trim nylon tube flush with bulkhead 65-14660-3 at Fuselage Station 1653;

(2) Install cover plate and angle fabricated in accordance with Boeing Service Bulletin No. 2395(R-1) or later FAA-approved revision using a clamp and grommet in accordance with that Bulletin; and

(3) Replace all frayed or chafed tail cone light wiring.

This supersedes AD 66-24-02.

This directive effective November 5, 1966.