AD 85-14-11

85-14-11 BELL HELICOPTER TEXTRON, INC,: Amendment 39-5812. Applies to Model 222 helicopters, serial numbers 47008 through 47089; Model 222B helicopters, serial numbers 47131 through 47143; Model 222U helicopters, serial numbers 47501 through 47537, and 47539.

Compliance is required prior to next flight after the effective date of this AD unless previously accomplished in accordance with BHTI ASB 222-85-33, dated August 13, 1985, or ASB 222U-85-8, dated August 13, 1985.

To prevent the loss of a rivet and ultimate disconnection of the control linkage on tail rotor control servo 222-382-002-101, accomplish the following:

(a) Prior to next flight, after the effective date of this AD, visually inspect installation of linkage rivets (3) for shop-formed head in accordance with BHTI ASB No. 222-85- 33, dated August 13, 1985, or 222U-85-8, dated August 13, 1985.

NOTE: Parts are identified in BHTI Model 222 Component Repair and Overhaul Vol. 2, Chapter 29-00-1 pp. 1009and 1010, Fig. 1, Index Number 46, 54, and 156 rivets, March 16, 1981.

b. If the shop-formed head on each rivet is not evident, or if either rivet is loose or missing, the tail rotor control servo must be replaced prior to further flight.

c. An alternate method of compliance which provides an equivalent level of safety, may be used when approved by the Manager, Helicopter Certification Branch, Aircraft Certification Division, FAA, Southwest Region.

The above procedures shall be done in accordance with BHTI ASB No. 222-85-33, dated August 13, 1985, or 222U-85-8, dated August 13, 1985, as appropriate. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a)(1) and 1 CFR Part 51. Copies may be obtained from BHTI, P.O. Box 482, Fort Worth, Texas 76101. Copies may be inspected at the Office of the Regional Counsel, FAA, Southwest Region, 4400 Blue Moune Road, Fort Worth, Texas, or at the Office of the Federal Register, 1100 L Street, N.W., Room 8401, Washington, D.C.

This amendment 39-5812 becomes effective February 9, 1988, as to all persons except those persons to whom it was made immediately effective by priority letter AD 85-14-11, issued July 26, 1985, which contained this amendment.