Commonwealth legislation

AD/BELL 206/14 Amdt 2 - Cyclic Control Bellcrank Supports - Inspection and Replacement

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This airworthiness directive requires operators of Bell 206 series helicopters fitted with magnesium cyclic bellcrank supports (P/N 206-001-521) to perform daily/overnight checks for loose attachment, cracks and corrosion, smooth minor nicks, and remove any cracked support before further flight. It also mandates replacing the magnesium supports with aluminium assemblies (P/N 206-00-544) within 100 hours time-in-service, with inspections repeated until replacement. Operators fund the inspections, torque/repair work and the replacement parts; maintenance staff must follow the specified procedures.

JSON API

Deep dive

Want the full deep dive?

Zoe can write the in-depth analysis on top of the summary above: how it works, who it affects and what each part actually does.

Current sections

Direct links to the current provisions in AD/BELL 206/14 Amdt 2 - Cyclic Control Bellcrank Supports - Inspection and Replacement.

AD/BELL 206/14 Amdt 2 - Cyclic Control Bellcrank Supports - Inspection and Replacement

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source
Bell Helicopter Textron Canada (BHTC) 206 and Agusta Bell 206 Series Helicopters

AD/BELL 206/14

Amdt 2

Cyclic Control Bellcrank Supports - Inspection and Replacement

8/69

Applicability: All models equipped with magnesium Cyclic Bellcrank Supports P/N 206-001-521. Requirement: 1. Inspect the right and left hand support assemblies as follows:

(a) Remove the upper forward cowling, P/N 206-061-801, to expose the hydraulic power cylinders.

(b) Inspect the attachment of the support assemblies to the fuselage for security. If a support assembly is found to be loose torque the NAS 1304-9 bolt to 80 to 100 inch pounds and the NAS 1305-9 bolt to 120 to 145 inch pounds.

(c) Inspect visually the right and left hand support assemblies P/No. 206-001-521- 5 and 206-001-521-6, for cracks in the spotfaced areas around the attachment bolts and in the fillet radii between the base and vertical section of the supports, using a bright flashlight or equivalent.

Note: Both the forward and aft flange fillet radii and spotfaced areas must be inspected.

(d) Smooth out any nicks or corrosion visible in the forward and aft flange fillet radii and spotfaced areas using a fine file and crocus cloth.

2. Remove and replace the support assembly before further flight if cracks are found. Inspect the cyclic control rigging in accordance with paras. 4-30 of the Model 206A Maintenance and Overhaul Instructions when a support assembly is replaced.

3. Replace the right and left hand magnesium support assemblies with new assemblies.

Compliance: For Paras. 1 and 2 - At each daily or overnight inspection.

For Paras. 3 - Within 100 hours time in service after 29 August 1969 and thereafter at intervals not exceeding 100 hours time in service until replaced with new aluminium support assemblies P/N 206-00-544 (Bell SB No. 206A-11 dated 9 May 1969 refers).

Background: AD/Agusta 206/11 equivalent.

Source text

Sourced from the Federal Register of Legislation (legislation.gov.au), CC BY 4.0.

1 AD/BELL 206/14 Amdt 2 - Cyclic Control Bellcrank Supports - Inspection and Replacement