# AD 68-10-08: Main Landing Gear Actuator Attach

- Type: Airworthiness directive
- Status: Current
- Products: Bombardier CL-44D4 and CL-44J
- Effective: May 21, 1968
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- Amendment: 39-601
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A427040FEF640E23862569A7005B488E.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/68-10-08

## The airworthiness directive

68-10-08 CANADAIR: Amendment 39-601. Applies to CL-44 Type airplanes.

Compliance required as indicated.

To detect cracks in the main landing gear actuator attachment brackets, P/N 44-87571-2, which have accumulated 14,500 or more hours' time in service as of the effective date of this AD, accomplish the following:

  (a) Prior to each flight after the effective date of this AD visually inspect for cracks the upper and lower lugs of the four main landing gear actuator attachment brackets.

  (b) Within the next 50 hours' time in service after the effective date of this AD unless accomplished within the last 200 hours' time in service and at intervals thereafter not to exceed 250 hours' time in service from the last inspection, remove the four brackets and inspect the upper and lower lugs for cracks using dye penetrant and a glass of at least 10-power or an FAA-approved equivalent inspection.

  (c) Within the next 500 hours' time in service after the effective date of this AD unless already accomplished, install spacers, P/N 44-87639 or an FAA-approved equivalent part in accordance with Canadair Service Bulletin No. CL44-474 dated April 8, 1968 or later revisions approved by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region or perform an equivalent installation approved by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region.

  (d) Replace cracked parts with a part of the same part number or an FAA-approved equivalent part before further flight except that the airplane may be flown in accordance with FAR 21.197 to a base where the replacement part can be installed, provided the main landing gear remains in the down and locked position with the landing gear lock pins installed.

  (e) The compliance times may be increased by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region, upon receipt of substantiating data through an FAA Maintenance Inspector.

  (f) Equivalent parts and inspections must be approved by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region.

(Canadair Ltd. Service Information Circular No. 370-CL44 dated April 8, 1968, pertains to this subject.)

This amendment is effective May 21, 1968.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS 1A20](https://openairdocs.org/tcds/1A20): Bombardier Inc.; names 2 of 2 models: CL-44D4, CL-44J

## Registered aircraft it may apply to (OpenAirDocs)

No registered aircraft matched the models it names.

Its text cites no advisory circulars or STCs.

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