AD 87-14-05

87-14-05 DEHAVILLAND AIRCRAFT COMPANY OF CANADA, A DIVISION OF BOEING OF CANADA, LTD.: Amendment 39-5676. Applies to Models DHC-8-101 and DHC-8-102 series airplanes, serial numbers 3 through 83, certificated in any category. Compliance required as indicated, unless previously accomplished.

To prevent failure of the main landing gear yoke pin, accomplish the following:

A. Within 25 landings after the effective date of this AD:

1. Inspect both main landing gears to determine the yoke pin part number, in accordance with Paragraph 1, Accomplishment Instructions of de Havilland Aircraft Company of Canada Service Bulletin 8-32-56, dated May 8, 1987.

2. Reidentify the shock strut, as necessary, in accordance with Paragraph 1, Accomplishment Instructions of de Havilland Aircraft Company of Canada Service Bulletin 8-32- 56, dated May 8, 1987.

B. If yoke pin P/N 10150-3 is installed, replace it with yoke pin P/N 10150-5, in accordance with the following schedule:1. For Model DHC-8-101 airplanes (33,000 lb. airplane): prior to the accumulation of 5,500 flights since installation of the yoke pin.

2. For Model DHC-8-102 airplanes (34,500 lb. airplane): prior to the accumulation of 4,700 flights since installation of the yoke pin.

C. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base in order to comply with the requirements of this AD.

D. An alternate means of compliance or adjustment of the compliance time, which provides an acceptable level of safety, may be used when approved by the Manager, New York Aircraft Certification Office, FAA, New England Region.

All persons affected by this directive who have not already received the appropriate service information from the manufacturer may obtain copies upon request to The de Havilland Aircraft Company of Canada, A Division of Boeing of Canada, Ltd., Garratt Boulevard, Downsview, Ontario M3K 1Y5, Canada. This information may be examined at FAA, Northwest Mountain Region, 17900 Pacific Highway South, Seattle, Washington, or FAA, New England Region, New York Aircraft Certification Office, 181 South Franklin Avenue, Valley Stream, New York.

This amendment becomes effective August 1, 1987.