SCHEDULE OF AIRWORTHINESS DIRECTIVES
CESSNA 170B · Airworthiness Directives
Overview
This document outlines the Airworthiness Directives related to air induction systems, specifically focusing on the inspection and maintenance of Brackett Aircraft Specialities engine air inlet filter assemblies. It is applicable to various aircraft models, including the Cessna 170 and its variants. The directive mandates inspections of the aluminium diamond mesh retainer within the air filter assembly to ensure safety and compliance with aviation regulations. If any cracks or failures are detected, the retainer must be replaced with a specified steel screen or the original air filter assembly must be refitted. The compliance timeline is set at 100 hours of service after a specified date, emphasizing the importance of regular maintenance for safe aircraft operation.
- Inspect the aluminium diamond mesh retainer for cracks or failed areas.
- Replace the retainer with a specified steel screen if defects are found.
- Compliance is required within 100 hours of service after March 31, 1979.
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 ·
- Airworthiness Directives
- Year ·
- 1979
- Pages ·
- 1
- File size ·
- 11 KB
- Publisher ·
- services.casa.gov.au
What is the SCHEDULE OF AIRWORTHINESS DIRECTIVES?
The SCHEDULE OF AIRWORTHINESS DIRECTIVES is a airworthiness directives for the CESSNA 170B, dated 1979.
How many pages is the SCHEDULE OF AIRWORTHINESS DIRECTIVES?
The copy of the SCHEDULE OF AIRWORTHINESS DIRECTIVES on file runs 1 pages.
Where does the SCHEDULE OF AIRWORTHINESS DIRECTIVES come from?
This copy of the SCHEDULE OF AIRWORTHINESS DIRECTIVES was originally published by services.casa.gov.au and is hosted on Sprinkle as a free, searchable reference copy.
What year was the SCHEDULE OF AIRWORTHINESS DIRECTIVES published?
The SCHEDULE OF AIRWORTHINESS DIRECTIVES — the CESSNA 170B airworthiness directives on file — is dated 1979.
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In this document
Applicability
The directive applies to Brackett Aircraft Specialities engine air inlet filter assemblies with specific model numbers, including BA-5110, which is used in the Cessna 170, 170A, 170B, 172, and 172A to M.
Inspection Requirement
Operators are required to remove the foam element from the air filter assembly and inspect the aluminium diamond mesh retainer for any cracks or failed areas. If any issues are found, the retainer must be replaced before further flight.
Compliance Timeline
Compliance with the directive is required within 100 hours of service after March 31, 1979, and subsequently at intervals not exceeding 100 hours until the necessary replacements are made.
Safety notes
- Failure to comply with the inspection requirements may compromise aircraft safety.
Full document text
COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 107 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Air Induction Systems AD/AIRIND/1 Brackett Aircraft Specialities Air Inlet Filter Assembly Inspection 2/79 Applicability: Brackett Aircraft Specialities engine air inlet filter assemblies model Nos. BA-4106, BA-4210, BA-5110, BA-6110 and BA-8110. Requirement: With foam element removed from the air filter assembly, inspect the aluminium diamond mesh retainer for cracks or failed areas. If cracks or failed areas are found replace retainer before further flight with a steel screen, P/N. as listed below, or refit the aircraft manufacturer’s original air filter assembly. For Filter Assembly P/N Use Steel Screen P/N BA-4106, BA-4210 BA-4109 BA-5110, BA-6110 BA-5101 BA-8110 BA-8109 Note: The air inlet filter assemblies are fitted to, but not necessarily limited to, the following aircraft: Filter Model Aircraft 1. BA-4106 Cessna 150, 150A to M, A150L and A150M. Piper PA-20, PA-20-115 and PA-20-135. 2. BA-4210 Grumman American AA-1, AA-1A, AA-1B and AA-5. 3. BA-5110 Cessna 170, 170A, 170B, 172 and 172A to M. 4. BA-6110 Mooney M20, M20A, M20B, M20C, M20D and M20G. 5. BA-8110 Cessna 180C to K, 182Bto Q, 185, 185A to E and A185F. Compliance: Within 100 hours time in service after 31 March 1979 and thereafter at intervals not exceeding 100 hours time in service until the aluminium diamond mesh retainer is replaced with a steel screen, P/N. as applicable, or the aircraft manufacturer’s original air filter assembly is refitted.