# Proposed AD 99-CE-80-AD: Raytheon Aircraft Company Beech Models 65-90, 65-A90, 65-A90-1, 65-A90-4, B90, C90, C90A, E90, and H-90 Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2002-01-10
- Products: Raytheon
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: August 27, 2001, 66 FR 44988
- Comments due: October 31, 2001
- Became: [AD 2002-01-10](https://openairdocs.org/ad/2002-01-10)
- Docket: 99-CE-80-AD
- FR document: 01-21498
- Official PDF: https://openairdocs.org/files/sha256/1d/d8/1dd80bda8891dca5ec935ac99a4205cacaa22bd17d046eb80a32e8b78273333d (from https://www.govinfo.gov/content/pkg/FR-2001-08-27/pdf/01-21498.pdf)
- Federal Register: https://www.federalregister.gov/documents/2001/08/27/01-21498/airworthiness-directives-raytheon-aircraft-company-beech-models-65-90-65-a90-65-a90-1-65-a90-4-b90
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/0C113581845748A386256AB600706DA7.0001
- Page: https://openairdocs.org/proposed/99-CE-80-AD

## Summary

This document proposes a new airworthiness directive (AD) that would apply to certain Raytheon Aircraft Company (Raytheon) Beech Models 65-90, 65-A90, 65-A90-1, 65-A90-4, B90, C90, C90A, E90, and H-90 airplanes. This proposed AD would require you to repetitively inspect the main landing gear upper torque knees and lower torque knees for evidence of fatigue cracks; and replace any torque knee with evidence of fatigue cracks. The proposed AD is the result of reports of many incidents of main landing gear torque knees cracking or breaking on the above-referenced airplanes. The actions specified by this proposed AD are intended to detect and replace cracked main landing gear torque knees, which could result in failure of the main landing gear and consequent loss of control of the airplane during takeoff, landing, or other ground operations.

## Notices in this docket

- Aug 27, 2001: Notice of proposed rulemaking (NPRM). (first notice), FR document 01-21498, comments due Oct 31, 2001 (https://www.federalregister.gov/documents/2001/08/27/01-21498/airworthiness-directives-raytheon-aircraft-company-beech-models-65-90-65-a90-65-a90-1-65-a90-4-b90)

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