AD 63-17-04

63-17-04 LOCKHEED: Amdt. 600 Part 507 Federal Register August 13, 1963. Applies to All Model 1329 Aircraft. Serial Numbers 5001 and Up.

Compliance required as indicated.

As a result of cracks in the rib flanges of the horizontal stabilizer box section, accomplish the following:

(a) Prior to further flight post the following placards in full view of the pilot:

(1) "Airspeed Limit V MO Equals 300 Knots Eas. M Mo Remains Mach 0.82."

(2) "Do Not Extend Speed Brake During Flight at Speeds Above 250 Knots EAS or at Altitudes Above 30,000 Feet Except in an Emergency."

(b) Within the next 20 hours' time in service, after the effective date of this AD, inspect the horizontal stabilizer in accordance with the provisions specified in Lockheed Bulletin No. 329-142.

(c) When a new stabilizer P/N JE 205-502 is installed in accordance with Lockheed Jetstar Service Bulletin No. 329-148 dated January 31, 1964, or an equivalent modification approved by the Chief, Engineering Branch, FAA Southern Region is incorporated, compliance with this AD is no longer required.

This directive effective upon publication in the Federal Register for all persons except those to whom it was made effective immediately by telegram dated July 25, 1963.

Revised September 7, 1963.

Revised March 7, 1964.