Commonwealth legislation

AD/SF340/67 - Nose Wheel Hub Heat Treatment

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

2/10 complexity

The AD mandates that operators of SAAB SF340A (S/N SF340A-004 to -159) and SF340B (S/N 340B-160 to -451) carry out the maintenance in SAAB Service Bulletin 340-32-116 Rev 1 to remove/rectify nose wheel hubs that were inadequately heat treated and may have reduced strength and fatigue life. Compliance was required before 5 Feb 1999 (effective 28 Jan 1999); owners/operators pay for the work and maintenance organisations perform it.

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/SF340/67 - Nose Wheel Hub Heat Treatment.

AD/SF340/67 - Nose Wheel Hub Heat Treatment

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source
SAAB SF340 Series Aeroplanes

AD/SF340/67 Nose Wheel Hub Heat Treatment 1/99

Applicability: SAAB SF340A, serial numbers SF340A-004 through -159, and 340B, serial numbers 340B-160 through -451.

Requirement: Action in accordance with SAAB Aircraft Service Bulletin 340-32-116 Revision 1.

Note: LFV AD 1-134 refers.

Compliance: Unless already accomplished, before 5 February 1999.

This Airworthiness Directive becomes effective on 28 January 1999.

Background: The manufacturer of the nose wheel hubs has determined that some hub castings were not properly heat treated during a special process designed to decrease the porosity.

The affected parts have a decrease in strength and removal is required as a precaution against possible loose bearing cups and a decreased fatigue life.

Source text

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

1 AD/SF340/67 - Nose Wheel Hub Heat Treatment