1AD/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

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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.

2. 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.