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Airworthiness Directives; Bell Helicopter Textron, A Division of Textron Canada, Ltd. Model 206A and 206B Helicopters
Rules and Regulations
D09002ee1be04ee04
D09002ee1be04ee93
United States
Department of Transportation
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United States Government Agency or Subagency
This amendment supersedes an existing airworthiness directive (AD), applicable to Bell Helicopter Textron, A Division of Textron Canada, Ltd., (BHTC) Model 206A and 206B helicopters, that currently requires an inspection of the main transmission input driveshaft assembly (driveshaft) at intervals of 300 hours time-in-service (TIS); the application of a zinc chromate primer inspection visual aid; and, daily visual checks of the driveshaft. This amendment requires inspections of the driveshaft at intervals of 300 hours TIS; the application of a self-adhesive temperature indicator visual inspection aid; and, preflight visual owner/operator (pilot) checks of the driveshaft. This amendment is prompted by recent studies that indicate self-adhesive temperature indicators are a more reliable means of detecting overheat conditions on grease-lubricated couplings than the zinc chromate primers currently in use. The actions specified by this AD are intended to prevent failure of the driveshaft due to coupling wear or overheating, which could result in loss of power to the main rotor and a subsequent forced emergency landing.
61 FR 11538
https://www.govinfo.gov/app/details/FR-1996-03-21/96-6419
96-6419
fr21mr96-12
4910-13-U
Docket No. 94-SW-16-AD
Amendment 39-9541, AD 96-06-04
https://www.govinfo.gov/app/details/FR-1996-03-21/96-6419
https://www.govinfo.gov/content/pkg/FR-1996-03-21/html/96-6419.htm
https://www.govinfo.gov/content/pkg/FR-1996-03-21/pdf/96-6419.pdf
2 p.
11538
11539
61 FR 11538
Code of Federal Regulations
Title 14 Part 39
14 CFR Part 39
Airworthiness Directives; Bell Helicopter Textron, A Division of Textron Canada, Ltd. Model 206A and 206B Helicopters; Federal Register Vol. 61, Issue
RULE
96-6419
DEPARTMENT OF TRANSPORTATION
1996-04-25
Docket No. 94-SW-16-AD
Amendment 39-9541, AD 96-06-04
4910-13-U
96-6419
Final rule.
This amendment supersedes an existing airworthiness directive (AD), applicable to Bell Helicopter Textron, A Division of Textron Canada, Ltd., (BHTC) Model 206A and 206B helicopters, that currently requires an inspection of the main transmission input driveshaft assembly (driveshaft) at intervals of 300 hours time-in-service (TIS); the application of a zinc chromate primer inspection visual aid; and, daily visual checks of the driveshaft. This amendment requires inspections of the driveshaft at intervals of 300 hours TIS; the application of a self-adhesive temperature indicator visual inspection aid; and, preflight visual owner/operator (pilot) checks of the driveshaft. This amendment is prompted by recent studies that indicate self-adhesive temperature indicators are a more reliable means of detecting overheat conditions on grease-lubricated couplings than the zinc chromate primers currently in use. The actions specified by this AD are intended to prevent failure of the driveshaft due to coupling wear or overheating, which could result in loss of power to the main rotor and a subsequent forced emergency landing.
Effective April 25, 1996.
Mr. Jurgen Priester, Aerospace Engineer, Rotorcraft Certification Office, Rotorcraft Directorate, FAA, Fort Worth, Texas 76193-0170, telephone (817) 222-5159; fax (817) 222- 5959.
Federal Register
Vol. 61, no. 56
Office of the Federal Register, National Archives and Records Administration
1996-03-21
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222 p.
Table of Contents:
AE 2.7:
GS 4.107:
AE 2.106:
KF70.A2
https://www.govinfo.gov/app/details/FR-1996-03-21
P0b002ee180a2bf35
0097-6326
0042-1219
0364-1406
769-004-00000-9
000582072
f:fr21mr96
https://www.govinfo.gov/app/details/FR-1996-03-21
https://www.govinfo.gov/content/pkg/FR-1996-03-21/pdf/FR-1996-03-21.pdf
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