United States Government Publishing Office
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United States
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2017-01-09
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Airworthiness Directives; Bell Helicopter Textron, Inc. Model 204B, 205A, 205A-1, 205B, 212, and 412 Helicopters
UNKNOWN
D09002ee1be06fc2f
United States
Department of Transportation
originator
org
United States Government Agency or Subagency
United States
Federal Aviation Administration
originator
org
United States Government Agency or Subagency
This amendment supersedes an existing airworthiness directive (AD), applicable to Bell Helicopter Textron, Inc. (BHTI) Model 205B, 212, and 412 helicopters, that currently requires a repetitive magnetic particle inspection of the main transmission lower planetary spider. This amendment expands the applicability to include the BHTI Model 204B, 205A, and 205A-1 helicopters. This amendment is prompted by the need to apply the magnetic particle inspections required by that AD to additional BHTI model helicopters, as well as more clearly state the applicable compliance times for these inspections. The actions specified by this AD are intended to prevent a fatigue failure of the main transmission lower planetary spider, which could result in failure of the main transmission, and subsequent loss of control of the helicopter.
59 FR 0
https://www.govinfo.gov/app/details/FR-1994-06-24/94-15408
94-15408
fr24jn94-1
4910-13-P
Federal Register: June 24, 1994
Docket No. 92-ASW-49
Amendment 39-8683
AD 93-17-12
https://www.govinfo.gov/app/details/FR-1994-06-24/94-15408
https://www.govinfo.gov/content/pkg/FR-1994-06-24/html/94-15408.htm
1 p.
0
0
59 FR 0
Code of Federal Regulations
Title 14 Part 39
14 CFR Part 39
Airworthiness Directives; Bell Helicopter Textron, Inc. Model 204B, 205A, 205A-1, 205B, 212, and 412 Helicopters; Federal Register Vol. 59, Issue
UNKNOWN
94-15408
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
Federal Register: June 24, 1994
Docket No. 92-ASW-49
Amendment 39-8683
AD 93-17-12
4910-13-P
94-15408
Final rule.
This amendment supersedes an existing airworthiness directive (AD), applicable to Bell Helicopter Textron, Inc. (BHTI) Model 205B, 212, and 412 helicopters, that currently requires a repetitive magnetic particle inspection of the main transmission lower planetary spider. This amendment expands the applicability to include the BHTI Model 204B, 205A, and 205A-1 helicopters. This amendment is prompted by the need to apply the magnetic particle inspections required by that AD to additional BHTI model helicopters, as well as more clearly state the applicable compliance times for these inspections. The actions specified by this AD are intended to prevent a fatigue failure of the main transmission lower planetary spider, which could result in failure of the main transmission, and subsequent loss of control of the helicopter.
July 29, 1994.
Mr. Uday Garadi, Aerospace Engineer, Rotorcraft Directorate, Rotorcraft Certification Office, ASW-170, 2601 Meacham Boulevard, Fort Worth, Texas 76193-0170, telephone (817) 222- 5157, fax (817) 222-5959.
Federal Register
Vol. 59, no. 121
Office of the Federal Register, National Archives and Records Administration
1994-06-24
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