AD 85-18-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bell Helicopter Textron, Inc. | 214B | Airworthiness Directives; BELL HELICOPTER TEXTRON, INC Model 214B/B1 and 214ST Series Helicopters |
| aircraft | Bell Helicopter Textron, Inc. | 214B-1 | Airworthiness Directives; BELL HELICOPTER TEXTRON, INC Model 214B/B1 and 214ST Series Helicopters |
| aircraft | Bell Helicopter Textron, Inc. | 214ST | Airworthiness Directives; BELL HELICOPTER TEXTRON, INC Model 214B/B1 and 214ST Series Helicopters |
Unsafe Condition
Failure of the main rotor drag brace assembly due to cracks or corrosion that cannot be removed within rework criteria.
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Required Actions
Inspect main rotor drag brace assembly (Part Numbers 214-010-113-001 or 003) per BHTI Alert Service Bulletin 214-85-28 or 214ST-85-29. Replace with serviceable parts if cracks are found or corrosion exceeds rework limits.
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Compliance Time
within the next 10 hours' time in service, unless previously accomplished, and thereafter at 250 hour intervals
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Affected Aircraft
Bell Helicopter Textron, Inc. Model 214B/B1 and 214ST series helicopters certificated in all categories.
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Federal Register Abstract
Main Rotor Drag Brae Assembly
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_85-18-06.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 85-18-06 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; BELL HELICOPTER TEXTRON, INC Model 214B/B1 and 214ST Series Helicopters Subject: Main Rotor Drag Brae Assembly Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 04/20/1987 Make: Bell Helicopter Textron, Inc. Model: 214B | 214B-1 | 214ST Product Type: Aircraft Product Subtype: Rotorcraft Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 85-18-06 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-5541 AD NUMBER: 85-18-06 SUBJECT HEADING: Airworthiness Directives; BELL HELICOPTER TEXTRON, INC Model 214B/B1 and 214ST Series Helicopters ACTION: SUMMARY: DATES: Effective April 20, 1987. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 85-18-06 BELL HELICOPTER TEXTRON, INC.: Amendment 39-5541. Applies to all Bell Helicopter Model 214B/B1 and 214ST series helicopters certificated in all categories. Compliance is required within the next 10 hours' time in service, unless previously accomplished, and thereafter at 250 hour intervals. To prevent failure of the main rotor drag brace accomplish the following: (a) Inspect main rotor drag brace assembly, Part Number (P/N) 214-010-113-001 or 003, in accordance with Bell Helicopter Textron, Inc. (BHTI), Alert Service Bulletin 214-85-28, dated September 3, 1985, or 214ST-85-29, dated September 3, 1985, as applicable. (b) If cracks are found, or if corrosion is found which cannot be removed within the limits of the rework criteria in the Alert Service Bulletins, replace with serviceable parts. (c) An alternative means of compliance or adjustment of the compliance time, which provides an equivalent level of safety, must be approved by the Manager, Helicopter Certification Branch, Aircraft Certification Division, FAA, Southwest Region. This procedure shall be done in accordance with BHTI Alert Service Bulletin 214-85-28, dated September 3, 1985, or 214ST-85-29, dated September 3, 1985, as applicable. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR Part 51. Copies may be obtained from Bell Helicopter Textron, Inc., P.O. Box 482, Fort Worth, Texas 76101. Copies may be inspected at the Office of Regional Counsel, FAA, 4400 Blue Mound Road, Fort Worth, Texas or at the Office of the Federal Register, 1100 L Street, NW., Room 8401, Washington, D.C. This amendment becomes effective April 20, 1987, as to all persons except those persons to whom it was made immediately effective by priority letter AD No. 85-18-06, issued September 11, 1985, which contained this amendment. FOOTER:
Document Text
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AD Final Rules - DRS_85-18-06.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 85-18-06 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; BELL HELICOPTER TEXTRON, INC Model 214B/B1 and 214ST Series Helicopters Subject: Main Rotor Drag Brae Assembly Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 04/20/1987 Make: Bell Helicopter Textron, Inc. Model: 214B | 214B-1 | 214ST Product Type: Aircraft Product Subtype: Rotorcraft Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 85-18-06 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-5541 AD NUMBER: 85-18-06 SUBJECT HEADING: Airworthiness Directives; BELL HELICOPTER TEXTRON, INC Model 214B/B1 and 214ST Series Helicopters ACTION: SUMMARY: DATES: Effective April 20, 1987. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 85-18-06 BELL HELICOPTER TEXTRON, INC.: Amendment 39-5541. Applies to all Bell Helicopter Model 214B/B1 and 214ST series helicopters certificated in all categories. Compliance is required within the next 10 hours' time in service, unless previously accomplished, and thereafter at 250 hour intervals. To prevent failure of the main rotor drag brace accomplish the following: (a) Inspect main rotor drag brace assembly, Part Number (P/N) 214-010-113-001 or 003, in accordance with Bell Helicopter Textron, Inc. (BHTI), Alert Service Bulletin 214-85-28, dated September 3, 1985, or 214ST-85-29, dated September 3, 1985, as applicable. (b) If cracks are found, or if corrosion is found which cannot be removed within the limits of the rework criteria in the Alert Service Bulletins, replace with serviceable parts. (c) An alternative means of compliance or adjustment of the compliance time, which provides an equivalent level of safety, must be approved by the Manager, Helicopter Certification Branch, Aircraft Certification Division, FAA, Southwest Region. This procedure shall be done in accordance with BHTI Alert Service Bulletin 214-85-28, dated September 3, 1985, or 214ST-85-29, dated September 3, 1985, as applicable. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR Part 51. Copies may be obtained from Bell Helicopter Textron, Inc., P.O. Box 482, Fort Worth, Texas 76101. Copies may be inspected at the Office of Regional Counsel, FAA, 4400 Blue Mound Road, Fort Worth, Texas or at the Office of the Federal Register, 1100 L Street, NW., Room 8401, Washington, D.C. This amendment becomes effective April 20, 1987, as to all persons except those persons to whom it was made immediately effective by priority letter AD No. 85-18-06, issued September 11, 1985, which contained this amendment. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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