Commonwealth legislation

AD/CESSNA 170/30 - Wing Flap Actuator Ball Nut Assemblies

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This airworthiness directive requires operators of certain Cessna 172/R172 (serials per Cessna SL SE76‑25) to inspect flap actuator P/N C301002‑0101 for specific date‑stamp codes. If present, a “FLAP EXTENSION PROHIBITED” placard must be fitted immediately and kept until the actuator ball‑nut assembly is replaced per Cessna SL SE76‑25 (inspection before next flight after 28 Jan 1977; replacement within 100 hours). Owners/operators bear compliance costs and operational limits until parts are fitted.

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/CESSNA 170/30 - Wing Flap Actuator Ball Nut Assemblies.

AD/CESSNA 170/30 - Wing Flap Actuator Ball Nut Assemblies

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source
Cessna 170, 172, F172, FR172 and 175 Series Aeroplanes

AD/CESSNA 170/30 Wing Flap Actuator Ball Nut Assemblies 1/77

Applicability: Model 172 and R172 with S/Nos. as detailed in Cessna Service Letter SE76-25. Requirement: 1. Inspect P/N C301002-0101 wing flap actuator for date stamp code as detailed in

Cessna SL SE76-25.

2. If the date stamp code on the actuator is OH, HH, WH or ZH, install a placard near the flap control which reads:

“FLAP EXTENSION PROHIBITED”.

Note: This placard may be removed when the Paragraph 3 requirement is satisfied.

3. Replace affected wing flap actuator ball nut assemblies in accordance with Cessna SL SE76-25.

Compliance: Paragraphs 1 and 2 - Before further flight after 28 January 1977.

Paragraph 3 - Within 100 hours time in service after 28 January 1977.

Federal Register of Legislative Instruments F2006B04962

Source text

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

1 AD/CESSNA 170/30 - Wing Flap Actuator Ball Nut Assemblies