# Proposed AD 97-CE-138-AD: Cessna Aircraft Company 180 and 185 Series Airplanes.

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 98-23-02
- Action: Notice of proposed rulemaking (NPRM).
- Published: June 26, 1998, 63 FR 34833
- Comments due: August 24, 1998
- Became: [AD 98-23-02](https://openairdocs.org/ad/98-23-02)
- Docket: 97-CE-138-AD
- FR document: 98-16591
- Official PDF: https://openairdocs.org/files/sha256/85/b6/85b62661d6d84dcc76e690bb6cde2e323c70458b27965bf7ecca2027a6a1bf0d (from https://www.govinfo.gov/content/pkg/FR-1998-06-26/pdf/98-16591.pdf)
- Federal Register: https://www.federalregister.gov/documents/1998/06/26/98-16591/airworthiness-directives-cessna-aircraft-company-180-and-185-series-airplanes
- Page: https://openairdocs.org/proposed/97-CE-138-AD

## Summary

This document proposes to supersede Airworthiness Directive (AD) 80-10-01, which is applied to certain Cessna Aircraft Company 180 and 185 series airplanes that are equipped with Airglas Engineering Company, Inc., (AECI) Model LW3600-180 single position or Model LW3600- 180A two position fixed penetration wheel ski installations. AD 80-10- 01 currently requires: modifying the ski bungee assemblies, safety cables, and check cables; limiting the maximum airspeed to 160 knots with skis installed; and installing an airspeed limitation placard. The proposed AD would retain the actions required in AD 80-10-01, and would require marking the maximum airspeed limits on the airspeed indicator; placing a supplemental airplane flight manual (AFM) and AFM supplement in the cockpit; and adding the Cessna Model 180K airplane to the applicability. Reports that certain airspeeds cause the skis to rotate into a nose-down position during flight prompted the AD action. The actions specified by the proposed AD are intended to prevent one or both wheel skis from rotating into a nose-down position during flight, which could result in loss of control of the airplane and/or possible airplane damage during flight or landing operations.

## Notices in this docket

- Jun 26, 1998: Notice of proposed rulemaking (NPRM). (first notice), FR document 98-16591, comments due Aug 24, 1998 (https://www.federalregister.gov/documents/1998/06/26/98-16591/airworthiness-directives-cessna-aircraft-company-180-and-185-series-airplanes)

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