Commonwealth legislation

AD/CESSNA 210/34 - Ammeter Type and Position - Inspection and Modification

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This Act has been repealed and is no longer in force. It is retained for historical reference.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

2/10 complexity

Owners of Cessna 210 aircraft must inspect whether their centre-zero ammeter is wired to the battery line and, if it’s tied to the alternator, rewire it to the battery per Cessna wiring diagrams. This prevents a false zero reading on alternator failure that can hide battery discharge and risk total electrical failure.

Do the simple battery/landing-light test and complete repairs within 100 flight hours after 30 Sept 1978.

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Current sections

Direct links to the current provisions in AD/CESSNA 210/34 - Ammeter Type and Position - Inspection and Modification.

AD/CESSNA 210/34 - Ammeter Type and Position - Inspection and Modification

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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Cessna 210 Series Aeroplanes

AD/CESSNA 210/34 Ammeter Type and Position - Inspection

and Modification

9/78

Applicability: All models.

Requirement: 1. Inspect aircraft to ascertain if the ammeter has been modified as per Rex Drawing RA-A-1109 or if a centre zero ammeter (charge/discharge type) is connected in the alternator line.

Reconnect centre zero ammeter (charge/discharge type) into the battery line a per original Cessna wiring diagrams.

Note: This requirement can be quickly checked by switching on the battery master switch (alternator not running) and a load such as a landing light switch and noting the following:

(a) if ammeter reads below zero in the discharge sector then it is connected in the battery line.

(b) if the ammeter still reads zero when a load is applied it is quite possible connected in the alternator line and needs to be reconnected into the battery line.

Compliance: Within the next 100 hours time in service after 30 September 1978.

Source text

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

1 AD/CESSNA 210/34 - Ammeter Type and Position - Inspection and Modification