Commonwealth legislation

AD/A320/10 - Standby Pitot Line

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This Act has been repealed and is no longer in force. It is retained for historical reference.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

1/10 complexity

What this is: A mandatory safety order (Airworthiness Directive) issued by the Civil Aviation Safety Authority (CASA) requiring a specific repair on certain Airbus aircraft.

Who it affects: Operators of Airbus Model A320-111 aircraft.

What it requires: Operators must modify the standby pitot line (the backup tubing that feeds air pressure sensors for measuring airspeed) to remove any low points where water could pool. This must be done exactly as specified in the manufacturer's Service Bulletin A320-34-1006 Revision 1.

Deadline: The modification must be completed before 31 December 1990.

Why it matters: Low points in pitot tubing can trap moisture. If this water freezes at high altitude, it blocks the tube and causes the pilots to receive false or erratic airspeed readings — a dangerous situation that has contributed to past accidents. This directive prevents that failure by ensuring the piping has no dips where fluid can collect.

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Direct links to the current provisions in AD/A320/10 - Standby Pitot Line.

AD/A320/10 - Standby Pitot Line

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source Airbus Industrie A319, A320 and A321 Series Aeroplanes

AD/A320/10 Standby Pitot Line 7/90

Applicability: Model A320-111.

Requirement: Action in accordance with SB A320-34-1006 R.1. Compliance: Prior to 31 December 1990.

Background: The pitot piping is altered to avoid any low points.

Source text

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