# Proposed AD 97-CE-74-AD: AlliedSignal Aerospace Bendix/King Model KSA 470 Autopilot Servo Actuators, Part Numbers 065-0076-10 Through 065-0076-15

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 98-08-20
- Action: Notice of proposed rulemaking (NPRM).
- Published: December 19, 1997, 62 FR 66565
- Comments due: February 19, 1998
- Became: [AD 98-08-20](https://openairdocs.org/ad/98-08-20)
- Docket: 97-CE-74-AD
- FR document: 97-33146
- Official PDF: https://openairdocs.org/files/sha256/41/9a/419a7d28f8918651c9e098ac775bc22ff8db743821cb930f69d28ff955b6939a (from https://www.govinfo.gov/content/pkg/FR-1997-12-19/pdf/97-33146.pdf)
- Federal Register: https://www.federalregister.gov/documents/1997/12/19/97-33146/airworthiness-directives-alliedsignal-aerospace-bendixking-model-ksa-470-autopilot-servo-actuators
- Page: https://openairdocs.org/proposed/97-CE-74-AD

## Summary

This document proposes to adopt a new airworthiness directive (AD) that would apply to certain AlliedSignal Aerospace Bendix/King Model KSA 470 autopilot servo actuators, part numbers 065-0076-10 through 065-0076-15, that are installed on aircraft. The proposed AD would require replacing the autopilot servo actuator with a modified actuator. The proposed AD is the result of two reports of the affected autopilot servo actuators containing loose roll pins within the servo housing. Loose roll pins could fall out, become lodged in the output shaft clutch mechanism, and prevent this mechanism from disengaging. The actions specified by the proposed AD are intended to prevent such an occurrence, which could result in increased effort by the pilot to control the aircraft and possible loss of control of the affected flight control axis.

## Notices in this docket

- Dec 19, 1997: Notice of proposed rulemaking (NPRM). (first notice), FR document 97-33146, comments due Feb 19, 1998 (https://www.federalregister.gov/documents/1997/12/19/97-33146/airworthiness-directives-alliedsignal-aerospace-bendixking-model-ksa-470-autopilot-servo-actuators)

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