# AD 60-14-01: Main Landing Gear

- Type: Airworthiness directive
- Status: Current
- Products: Kelowna Flightcraft R & D 340 and 440
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- Registered aircraft: 12 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E0C599B6E6B541C4862569AC0058041E.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/60-14-01

## The airworthiness directive

60-14-01 CONVAIR: Amdt. 177 Part 507 Federal Register July 1, 1960. Applies to All Models 340/440 Aircraft. Compliance required as indicated.

Fatigue failures have occurred in the threaded area (piston end) of the main landing gear actuating cylinder rod assembly, P/N 340-5150107. In at least two instances, complete failure of the rod end occurred allowing the main gear to free fall to the down position causing excessive load to be placed on the airframe. As a result, the following must be accomplished on rod assemblies with more than 5,000 hours' time in service.

Within the next 425 hours' time in service, and every 425 hours thereafter, conduct a visual inspection using at least a 10-power magnifying glass or equivalent for cracks in the threaded portion of the main landing gear actuating cylinder rod assembly, P/N 340-5150107. If cracks are found, the cylinder rod assembly must be replaced or reworked in accordance with Convair Service Engineering Report 340-12, 440-11 or equivalent prior to further flight. Reworked salvaged parts or reworked sound parts are not subject to the special inspections.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS 6A6](https://openairdocs.org/tcds/6A6): Kelowna Flightcraft R & D Ltd.; names 2 of 6 models: 340, 440

## Registered aircraft it may apply to (OpenAirDocs)

Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment.

- Aircraft: 12 (12 by airframe model, 0 by engine model)
- Makers: Convair 12

Models with the most aircraft:

- [Convair 340](https://openairdocs.org/model/convair-340): 7 aircraft (airframe model)
- [Convair 440](https://openairdocs.org/model/convair-440): 5 aircraft (airframe model)

All 2 models: https://openairdocs.org/ad/60-14-01/models.md
Every aircraft: https://openairdocs.org/ad/60-14-01/aircraft.md

Its text cites no advisory circulars or STCs.

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