AD/CESSNA 180/67 Aileron Balance Weight 1/84 - CASA
CESSNA 180 · Service Bulletins
Overview
This document is an Airworthiness Directive issued by the Civil Aviation Safety Authority of Australia, specifically addressing modifications and inspections required for Cessna 180 and 182 series aircraft. It focuses on the aileron balance weights for models 180 through 180K and 182 through 182R. The directive outlines the necessary steps to determine if the aircraft has been modified according to specific Supplemental Type Certificates (STCs) and provides guidance on measuring and replacing aileron balance weights to ensure safe operation. Compliance with these directives is critical to prevent potential aileron flutter, which could lead to catastrophic failure during flight.
- The directive applies to Cessna 180 models, including the 180K, and Cessna 182 models.
- Aileron balance weights must be inspected and measured for safety compliance.
- Weights measuring approximately 3/4 inch are acceptable; those at 1/2 inch require replacement.
- Compliance must be achieved within 50 hours of service after 31 January 1983.
- Failure to comply could lead to dangerous aileron flutter.
Document
Source
Originally published by services.casa.gov.au. Sprinkle hosts a reference copy with an added summary, specifications and searchable full text.
Document details
- Type
- Service Bulletins
- Year
- 1984
- Pages
- 1
- File size
- 10 KB
- Publisher
- services.casa.gov.au
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In this document
Applicability
The directive applies to all models of the Cessna 180 series, including the 180K, as well as the 182 series. It specifies that the aircraft must have been modified according to the Robertson STC to be subject to these requirements.
Inspection Requirements
Operators must verify if their aircraft has been modified in accordance with the applicable STC at the Robertson Aircraft Corporation repair station. If modifications were made prior to 1 August 1983, an inspection is required.
Measurement of Aileron Balance Weights
The directive instructs pilots to measure the height of all aileron balance weights. Weights measuring approximately 3/4 inch are considered correctly installed, while those measuring approximately 1/2 inch must be replaced before further flight.
Compliance Timeline
Compliance with the directive is required within 50 hours of time in service after 31 January 1983. Failure to comply could result in serious safety issues.
Safety Considerations
The document emphasizes the importance of compliance to prevent destructive aileron flutter, which poses a significant risk to flight safety.
Safety notes
- Failure to comply with the directive could result in destructive aileron flutter.
Full document text
COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Cessna 180, 182 and Wren 460 Series Aeroplanes AD/CESSNA 180/67 Aileron Balance Weight 1/84 Applicability: All models 180 thru 180H, 180J and 180K aircraft modified in accordance with Robertson STC SA 1435WE and all models 182 thru 182R, R182, T182 and TR182 aircraft modified in accordance with Robertson STC SA 1382WE. Requirement: 1. Determine if the aircraft has been modified in accordance with the applicable STC at Robertson Aircraft Corporation repair station No. 415-23 prior to 1 August 1983, and if so proceed with the inspection requirement. 2. Measure the height of all aileron balance weights. If the measured height of all weights is approximately 3/4 inch, the weights are correctly installed and no further action is necessary. 3. Any weight with a measured height of approximately 1/2 inch, requires replacement before further flight with balance weights of the appropriate part number in accordance with the applicable STC data or Robertson SB No. 20. Rebalance the ailerons within the limits specified by the Cessna Aircraft Company Service Manual for the aircraft involved. Compliance: Within 50 hours time in service after 31 January 1983. Background: Failure to comply with the intent of this Directive could result in destructive aileron flutter.
What's in the CESSNA 180 TCDS
A Type Certificate Data Sheet (TCDS) is the FAA's record of what an aircraft type was approved as. It is the source of truth for weights, seating, fuel and the rules the design was certified against. Expand any line to see what it means.
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