Commonwealth legislation

AD/EMB-110/8 Amdt 5 - Flap Actuators

RepealedCTH

This Act has been repealed and is no longer in force. It is retained for historical reference.

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This mandatory safety rule requires operators of Embraer EMB-110 Bandeirante aircraft fitted with specified EEMCO flap actuators to carry out regular inspections and lubrication to prevent actuator failure and flap asymmetry.

Inspections/lubrication are required at defined short (1,500 landings/12 months) and longer (4,500 landings/36 months) intervals, and must follow the Brazilian AD (CTA AD 82-07-04). It addresses a known moisture-related actuator failure that caused mid‑flight flap collapse.

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/EMB-110/8 Amdt 5 - Flap Actuators.

AD/EMB-110/8 Amdt 5 - Flap Actuators

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source
Embraer EMB-110 (Bandeirante) Series Aeroplanes

AD/EMB-110/8

Amdt 5

Flap Actuators 2/92

Applicability: Model EMB-110, equipped with flap linear actuators EEMCO P/N D-2246-5, D- 2246-6, D-2246-31 and D-2246-41.

Note: Actuators P/N D-2246-3 and D-2246-4 were deleted by the previous issue of this Directive.

Requirement: Inspect and lubricate in accordance with Part I and Part II of Brazil CTA AD 82-07-04 R2 Amdt 39-678.

Note: Embraer SB 110-27-043 Rev 2 refers in part.

Compliance: For Part I of Requirement Document:

At intervals not to exceed 1500 landings or 12 months after 3 February 1992; whichever occurs first.

For Part II of Requirement Document:

At intervals not to exceed 4500 landings or 36 months after 3 February 1992; whichever occurs first.

The compliance of the previous issue of this Directive was: at intervals not exceeding 1500 landings or 12 months, whichever occurs first.

Background: An incident occurred where a flap retracted under aerodynamic loads due to the failure of the flap linear actuator ball return tube, which was caused by the ingress of moisture. This resulted in a flap asymmetry situation which affected the safety of the flight.

Amendment 5 is raised to reflect the requirements of the recently issued Country of Origin AD.

Source text

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

1 AD/EMB-110/8 Amdt 5 - Flap Actuators