# AD 75-08-01: Nose Landing Gear

- Type: Airworthiness directive
- Status: Current
- Products: Bombardier CL-44D4 and CL-44J
- Effective: April 7, 1975
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- Amendment: 39-2150
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/723249FB072A4222862569A7005E4350.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/75-08-01

## The airworthiness directive

75-08-01 CANADAIR: Amendment 39-2150. Applies to all CL-44D4 and CL-44J airplanes.

Compliance required as indicated.

1. Affects the nose landing gear upper and lower toggle pins P/N 28-86128.

a. Within the next 300 hours' time in service after the effective date of this AD, unless accomplished within the last 450 hours' time in service, remove the upper and lower nose landing gear toggle pins P/N 28-86128 and inspect for cracks emanating from the ends of the slotted hole located at the center of the pins using Magnaflux (MIL-I-6868) or an FAA- approved equivalent inspection.

b. The inspection specified in "a" above shall be repeated at intervals not to exceed 750 hours' time in service from the last inspection.

2. Cracked parts shall be replaced prior to further flight.

a. Replacement parts shall be of the same part number or P/N 28-86128-2 or approved equivalent parts.

3. The inspection specified in (1) is not required if:

a. P/N 28-86128-2 pins are installed or;

b. P/N 28-86128 pins are reworked, in accordance with Canadair Limited Service Information Circular No. 381-CL44 dated October 23, 1974, to P/N 28-86128-2 configuration.

4. The aircraft may be flown in accordance with FAR 21.197 to a base where the inspections or repairs can be performed.

5. Upon submission of substantiating data by an owner or operator through an FAA Maintenance Inspector, the Chief, Engineering and Manufacturing Branch, FAA, Eastern Region, may adjust the inspection intervals specified in this AD. Equivalent parts must be approved by the Chief, Engineering and Manufacturing Branch, FAA, Eastern Region.

This amendment is effective April 7, 1975.

## 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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