AD 87-13-06

87-13-06 BRITISH AEROSPACE (BAe): Amendment 39-5657. Applies to HP 137 Mk1, Jetstream Series 200, and Jetstream Model 3101 (includes Model 3100) (all serial numbers) airplanes equipped with main landing gear legs, Type Nos. 1863, 1863/4A, 1863/4B, 1863/4C, B00A702850A, and B00A702925A for left-hand installation and Type Nos. 1864, 1864/4A, 1864/4B, 1864/4C, B00A702851A, and B00A702926A for right-hand installation, certificated in any category.

Compliance as required in Table 1 below, unless already accomplished:

TABLE 1

INSPECTION THRESHOLD CRITERIA

CUMULATIVE SERVICE CRITERIA FOR INITIAL INSPECTION CRITERIA FOR RECURRING INSPECT ION

Less than 13,229 lb. MGTW* 13,229- 14,550 lb. MGTW* 14,551- 15,322 lb. MGTW* ALL WEIGHTS No record of Landings 9,500 hours 7,000 hours 6,000 hours 500 hours Aircraft Landings Recorded 19,000 Landings 14,000 Landings 12,000 Landings 1,000 Landings Gear Component Landings Recorded 19,000 Landings 14,000 Landings 12,000 Landings 1,000 Landings Installed Overhauled Gear** Within 30 days Within 30 days Within 30 days 1,000 Landings Spare Gear** Prior To Installation Prior To Installation Prior To Installation 1,000 Landings * Maximum (Certificated) Gross Takeoff Weight ** With No Record of Landings And No Compliance To S/B 32-JA860812

To prevent loss of ground directional control, collapse, or failure of the main landing gear, accomplish the following:

(a) Inspect the main landing gear legs using non-destructive test (NDT) procedures described in BAe Air Weapons Division, S/B 32-32 dated July 22, 1986, initially within 30 days after the effective date of this AD or the inspection threshold criteria specified in Table 1 of this AD, whichever occurs later, and thereafter at the recurring interval specified in Table 1 of this AD.

(b) If indications of cracks are found, prior to further flight, replace the gear with a serviceable unit.

(c) Airplanes may be flown in accordance with FAR 21.197 to a location where this AD may be accomplished.

(d) The intervals between repetitive inspections required by this AD may be adjusted up to 20 percent of the specified interval to allow accomplishment of these inspections concurrent with other scheduled maintenance of the airplane.

(e) An equivalent means of compliance with this AD may be used if approved by the Manager, Aircraft Certification Staff, AEU-100, Europe, Africa, and Middle East Office, FAA, c/o American Embassy, Brussels, Belgium; Telephone (322) 513.38.30.

All persons affected by this directive may obtain copies of the documents referred to herein upon request to British Aerospace plc, Manager, Product Support, Civil Aircraft Division, Prestwick Airport, Ayrshire, KA9 2RW, Scotland; or British Aerospace, Inc., Technical Librarian, Box 17414, Dulles International Airport, Washington, D.C. 20041; or may examine the documents referred to herein at FAA, Office of the Regional Counsel, Room 1558, 601 East 12th Street, Kansas City, Missouri 64106.

This amendment becomes effective on June 30, 1987.