AD 75-18-08

75-18-08 MCDONNELL DOUGLAS: Amendment 39-2351 as amended by Amendment 39-2411. Applies to DC-10-10, -10F, -30, -30F and -40 series airplanes, certificated in all categories.

To prevent possible airplane misalignment during ILS approaches without readily available failure indication, accomplish the following:

(A) Unless already accomplished or unless one of the relieving provisions, specified below, has been accomplished, within four calendar days after receipt of this telegram the airplane is limited to Category I minima and the following placard or its equivalent must be placed in plain view of the pilots: AIRCRAFT LIMITED TO CATEGORY I APPROACH MINIMA.

(B) Operators shall, by the most immediate and practicable means, notify flight crews of the foregoing.

(C) The Category I limitation does not apply to an airplane after accomplishing one of the following:

(1) Accomplish modification defined in McDonnell Douglas Service Bulletin 34-66, dated July 23, 1975, or later FAA-approved revisions; or

(2) Accomplish a modification approved by the Chief, Aircraft Engineering Division, FAA Western Region.

(D) Prior to August 6, 1976, accomplish McDonnell Douglas Service Bulletin 34-66, dated July 23, 1975, or later FAA-approved revisions, or an equivalent modification approved by the Chief, Aircraft Engineering Division, FAA Western Region.

Amendment 39-2351 was effective September 2, 1975, for all persons except those to whom it was made effective immediately by telegrams dated August 6, 1975.

This amendment 39-2411 is effective November 10, 1975 for all persons except those to whom it was made effective by telegrams, dated October 10, 1975, which contained this amendment.