Commonwealth legislation

AD/BEA 109/2 - Propeller Inspection and Operating Restriction

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This Act has been repealed and is no longer in force. It is retained for historical reference.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

This AD applies to Beagle A109 (Airedale) aircraft with McCauley propellers model 2D36C14/78KM-4. It requires a 10x magnifying inspection of each propeller blade for erosion, scratches, nicks or cracks (repair any damage), followed by a full-blade dye-penetrant inspection after repairs; the inspection may be done without removing the propeller. Operators must install a placard beside the RPM gauge reading: "AVOID CONTINUOUS OPERATION WHILE DESCENDING BETWEEN 2250 AND 2550 RPM WITH MANIFOLD PRESSURE SETTINGS BELOW 15 INCHES Hg." This prevents vibration-induced propeller failure.

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/BEA 109/2 - Propeller Inspection and Operating Restriction.

AD/BEA 109/2 - Propeller Inspection and Operating Restriction

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source
Beagle A109 (Airedale) Series Aeroplanes

AD/BEA 109/2 Propeller Inspection and Operating Restriction 1/70

Applicability: All models fitted with McCauley 2D36C14/78KM-4 propellers.

Requirement: 1. Visually inspect blades for damage with the aid of a 10 power (2 1/2x) glass for defects such as erosion, scratches, nicks, cracks, etc. Rectify as necessary. After rectification dye penetrant inspect the entire blade from hub to tip.

Note: This work can be performed without removing the propeller from the engine.

Install a placard on the instrument panel adjacent to the RPM indicator reading as follows:

"AVOID CONTINUOUS OPERATION WHILE DESCENDING BETWEEN 2250 AND 2550 RPM WITH MANIFOLD PRESSURE SETTINGS BELOW

15 INCHES Hg."

Note: McCauley service Bulletin No. 76 also refers.

Source text

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

1 AD/BEA 109/2 - Propeller Inspection and Operating Restriction