AD 76-12-08

76-12-08 WEATHERLY AVIATION COMPANY: Amendment 39-2643. Applies to Model 201B aircraft, all serial numbers which are equipped with Cleveland wheels and brakes, and Model 201C aircraft Serial Nos. 1001, 1002, and 1003 which are also equipped with Cleveland wheels and brakes, certificated in all categories.

Compliance required within the next 50 hours time in service after the effective date of this AD, unless already accomplished.

To prevent failure of the weld attachment of the landing gear ring P/N 40213-14 to the wrap plate P/N 40213-15 and tube P/N 40213-16, or use of improperly ground bolt heads, which may result in jamming of the brake and loss of airplane control during ground operation, accomplish the following:

(a) Inspect the welding skips of the weld of the 40213-14 ring to the 40213-15 wrap plate and 40213-16 tube. If the weld skip exceeds 3/8 inch max. at the upper bolt hole or exceeds 1/2 inch max. at any other bolt hole as shown in Figure 1, before further flight replace with a P/N 40213 landing gear strut that does not exceed the weld skip limits as shown in Figure 1. Field repair by welding is not acceptable because the part is heat treated.

(b) Inspect the bolt heads of the AN-5-10A bolts which attach the brake to the 40213-14 ring and if any bolt head is ground off in excess of the max. 1/16 inch limit shown in Figure 2, before further flight replace with an AN-5-10A bolt that does not exceed max. 1/16 inch grind limit shown in Figure 2.

(c) Aircraft may be flown to a base for accomplishment of the inspections required by this AD per FAR's 21.197 and 21.199.

NOTE 1: Weatherly Aviation Company Service Note No. 3 dated March 31, 1976 refers to this same subject.

NOTE 2: For the requirements regarding the listing of compliance and method of compliance with this AD in the airplane's permanent maintenance record, see FAR 91.173.

This amendment becomes effective June 21, 1976.