# Proposed AD 96-CE-66-AD: Empresa Brasileira de Aeronautica S.A. Models EMB-110P1 and EMB-110P2 Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 98-01-10
- Action: Notice of proposed rulemaking (NPRM).
- Published: March 12, 1997, 62 FR 11384
- Comments due: May 30, 1997
- Became: [AD 98-01-10](https://openairdocs.org/ad/98-01-10)
- Docket: 96-CE-66-AD
- FR document: 97-6088
- Official PDF: https://openairdocs.org/files/sha256/21/d2/21d21b46bd4500ca657bd244527e320cd7a4e40248316c2fbef5d67354190336 (from https://www.govinfo.gov/content/pkg/FR-1997-03-12/pdf/97-6088.pdf)
- Federal Register: https://www.federalregister.gov/documents/1997/03/12/97-6088/airworthiness-directives-empresa-brasileira-de-aeronautica-sa-models-emb-110p1-and-emb-110p2
- Page: https://openairdocs.org/proposed/96-CE-66-AD

## Summary

This document proposes to supersede Airworthiness Directive (AD) 87-03-10, which currently requires repetitively inspecting the fillet area of both the left and right main landing gear (MLG) wheel axle/piston tube support junction area for cracks on Empresa Brasileira de Aeronautica S.A. (EMBRAER) Models EMB-110P1 and EMB-110P2 airplanes and replacing any MLG wheel axle/piston tube assembly where a crack is found. AD 87-03-10 also provided the option of reworking this area when no cracks were found as terminating action for the repetitive inspections. The Federal Aviation Administration's policy on aging commuter-class aircraft is to eliminate or, in certain instances, reduce the number of certain repetitive short-interval inspections when improved parts or modifications are available. The proposed action would require the following on EMBRAER Models EMB 110-P1 and EMB 110-P2 airplanes that do not have an ``R'' stamped on both the left and right MLG wheel axle/piston tube assembly end-piece: inspecting (one-time) the fillet area of each MLG wheel axle/piston tube support junction area to ensure the area is free of cracks, replacing any MLG wheel axle/piston tube assembly if a crack is found, and reworking this area on both the left and right MLG's, as terminating action for the repetitive inspections that are currently required by AD 87-03-10. The actions specified in the proposed AD are intended to prevent failure of the MLG wheel axle/piston tube assembly caused by fatigue cracking, which could result in loss of control of the airplane during landing operations.

## Notices in this docket

- Mar 12, 1997: Notice of proposed rulemaking (NPRM). (first notice), FR document 97-6088, comments due May 30, 1997 (https://www.federalregister.gov/documents/1997/03/12/97-6088/airworthiness-directives-empresa-brasileira-de-aeronautica-sa-models-emb-110p1-and-emb-110p2)

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