Commonwealth legislation

AD/BEECH 90/30 - Heater - Differential Pressure Switches and Fuse Replacement and Inspection

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

2/10 complexity

This airworthiness directive applies to Beechcraft 65-90, 65-A90 and B90 aeroplanes (S/N LJ-1 to LJ-501). It requires pilots to confirm the cockpit ventilation blower is working before each flight until corrective work is done, and requires replacement of ventilation and combustion blower differential pressure switches plus inspection/confirmation of the correct heater fuse per Beechcraft Service Instruction No. 0500-412 within 100 hours of 3 October 1972. Operators or owners must arrange the replacements and inspections; pilots may perform and certify the preflight check.

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/BEECH 90/30 - Heater - Differential Pressure Switches and Fuse Replacement and Inspection.

AD/BEECH 90/30 - Heater - Differential Pressure Switches and Fuse Replacement and Inspection

meta-content-style-type: text/css meta-content-type: application/xhtml+xml; charset=utf-8 meta-generator: Aspose.Words for .NET 22.10.0

?xml version="1.0" encoding="utf-8" standalone="no"?>

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source Beechcraft 90 and 65-90 (King Air) Series Aeroplanes

AD/BEECH 90/30 Heater - Differential Pressure Switches

and Fuse Replacement and Inspection

Applicability: Models 65-90, 65-A90 and B90 S/Nos. LJ-1 to LJ-501.

10/72

Requirement: 1. Determine that the ventilation blower is operating. Operation of the heater is prohibited if the ventilation blower is not functioning. This determination may be made by checking for airflow out of the air distribution openings in the cockpit and/or by the sound of the blower.

Note: The above inspection may be performed and certified for by the pilot in command.

2. Replace existing ventilation blower and combustion blower differential switches in accordance with Beechcraft SI No. 0500-412.

3. Inspect the heater fuse to determine that a standard fuse of proper value is installed in accordance with Beechcraft SI No. 0500-412.

Compliance: For Para. 1 - Prior to each flight until incorporation of Paras. 2 and 3.

For Paras. 2 and 3 - Within 100 hours’ time in service after 3 October 1972.

Source text

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