AD 89-10-11 R1
final rule
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bell Helicopter Textron Canada Limited | 206A | Airworthiness Directives; BELL HELICOPTER TEXTRON, INC Model 206A and 206B Helicopters |
| aircraft | Bell Helicopter Textron Canada Limited | 206B | Airworthiness Directives; BELL HELICOPTER TEXTRON, INC Model 206A and 206B Helicopters |
Unsafe Condition
Possible in-flight engine flameout due to snow ingestion into the engine air induction system during flight operations in falling and/or blowing snow, which could result in loss of the helicopter.
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Required Actions
Revise the Rotorcraft Flight Manual (RFM) and Rotorcraft Flight Manual Supplements (RFMS) to include requirements for installing specific engine air induction kits and deflector kits, and impose operational limitations such as 20-minute hover duration and minimum visibility of one-half statute mile in snow conditions.
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Compliance Time
Within the next 20 days after the effective date of this AD
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Affected Aircraft
Bell Helicopter Textron, Inc. Model 206A and 206B helicopters certificated in any category.
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Federal Register Abstract
Rfm Limitations
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_89-10-11_R.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 89-10-11 R1 Document Type: AD Final Rules Docket Number: 88-ASW-55 Subject Heading: Airworthiness Directives; BELL HELICOPTER TEXTRON, INC Model 206A and 206B Helicopters Subject: Rfm Limitations Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 07/31/1989 Make: Bell Helicopter Textron Canada Limited Model: 206A | 206B Product Type: Aircraft Product Subtype: Rotorcraft Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 89-10-11 R1 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: 88-ASW-55 AMENDMENT: 39-6283 AD NUMBER: 89-10-11 R1 SUBJECT HEADING: Airworthiness Directives; BELL HELICOPTER TEXTRON, INC Model 206A and 206B Helicopters ACTION: SUMMARY: DATES: Effective July 31, 1989. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 89-10-11 R1 BELL HELICOPTER TEXTRON, INC.: Amendment 39-6211 as corrected by Amendment 39-6283. (Airworthiness Docket No. 88-ASW-55) Applicability: Bell Helicopter Textron, Inc., Model 206A and 206B helicopters certificated in any category. Compliance: Required as indicated, unless already accomplished. To prevent possible in-flight engine flameout, which could result in the loss of the helicopter, accomplish the following: (a) Within the next 20 days after the effective date of this AD, revise the following Rotorcraft Flight Manual and Rotorcraft Flight Manual Supplements, as applicable. (1) For Model 206A helicopters, revise the FAA approved Rotorcraft Flight Manual (RFM) No. BHT-206A-FM-1 Operating Limitations, Section 1, Type of Operation, by adding the following: The following equipment shall be installed when conducting flight operations in falling and/or blowing snow to prevent possibility of engine flameout: The Particle Separator Engine Air Induction System Kit and the Deflector Kit. (See BHT-206A-FMS-18 and BHT-206A-FMS-24.) or The Snow Winterization Air Induction System. (See BHT-206A-FMS- 11.) (2) For Model 206A helicopters, revise the FAA approved Rotorcraft Flight Manual Supplement (RFMS) Nos. BHT-206A-FMS-18 and BHT-206A-FMS-24 Operating Limitations, Section 1, Type of Operation, by adding the following: The FAA approved Engine Air Induction Deflector Kit No. 206-706-136 shall be installed in conjunction with the Particle Separator Air Inducting Kit No. 206-706-201-17 or 206-706-200-9 when conducting flight operations in falling and/or blowing snow, and the following limits apply: Hover flight in falling and/or blowing snow is limited to a 20-minute duration after which the helicopter must be landed and checked for snow and/or ice accumulation. Flight operations are prohibited when visibility in falling and/or blowing snow is less than one- half (1/2) statute mile. (3) For Model 206B (206B II) helicopters, revise the FAA approved RFM No. BHT-206B-FM-1 Operating Limitations, Section 1, Type of Operation, by adding the following: The following equipment shall be installed when conducting flight operations in falling and/or blowing snow to prevent possibility of engine flameout: The Particle Separator Engine Air Induction System Kit and The Deflector Kit. (See BHT-206B-FMS-15 and BHT-206B-FMS-18.) (4) For Model 206B (206B II) helicopters, revise FAA approved RFMS Nos. BHT-206B-FMS-15 and BHT-206B-FMS-18 Operating Limitations, Section 1, Type of Operation, by adding the following: The FAA approved Engine Air Induction Deflector Kit No. 206-706-136 shall be installed in conjunction with the Particle Separator Air Induction Kit No. 206-706-200-5 or 206-706-201-11 when conducting flight operations in falling and/or blowing snow, and the following limits apply: Hover flight in falling and/or blowing snow is limited to a 20-minute duration after which the helicopter must be landed and checked for snow and/or ice accumulation. Flight operations are prohibited when visibility in falling and/or blowing snow is less than one- half (1/2) statute mile. (5) For Model 206B (206B III) helicopters, revise the FAA approved RFM No. BHT-206B3-FM-1 Operating Limitations, Section 1, Type of Operation, by adding the following: The following equipment shall be installed when conducting flight operations in falling and/or blowing snow to prevent possibility of engine flameout: The Particle Separator Engine Air Induction System Kit and the Deflector Kit. (See BHT-206B3-FMS-10 and BHT-206B3-FMS-12.) (6) For Model 206B (206B III) helicopters, revise the FAA approved RFM Nos. BHT-206B3-FMS-10 and BHT-206B3-FMS-12 Operating Limitations, Section 1, Type of Operation, by adding the following: The FAA approved Engine Air Induction Deflector Kit No. 206-706-136 shall be installed in conjunction with the Particle Separator Air Induction Kit No. 206-706-201 or 206-706-200 when conducting flight operations in falling and/or blowing snow, and the following limits apply: Hover flight in falling and/or blowing snow is limited to a 20-minute duration after which the helicopter must be landed and checked for snow and/or ice accumulation. Flight operations are prohibited when visibility in falling and/or blowing snow is less than one- half (1/2) statute mile. (b) Adding the following RFM and RFMS revisions to the basic RFM manual, as applicable, is an approved alternate method of compliance with paragraph (a) of this AD: BHT-206A-FM-1, Rev. D-39 BHT-206A-FMS-18, Rev. 6 BHT-206A-FMS-24, Rev. 3 BHT-206B-FM-1, Rev. B-39 BHT-206B-FMS-15, Rev. 4 BHT-206B-FMS-18, Rev. 3 BHT-206B3-FM-1, Rev. 18 BHT-206B3-FMS-12, Rev. 1 BHT-206B3-FMS-10, Rev. 1 (c) An alternate method of compliance, which provides an equivalent level of safety, may be used when approved by the Manager, Helicopter Certification Branch, Federal Aviation Administration, Fort Worth, Texas 76193-0170. Airworthiness Directive 89-10-11 (Amendment 39-6211) became effective on June 8, 1989. This amendment (39-6283, AD 89-10-11 R1) becomes effective on July 31, 1989. FOOTER:
Document Text
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AD Final Rules - DRS_89-10-11_R.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 89-10-11 R1 Document Type: AD Final Rules Docket Number: 88-ASW-55 Subject Heading: Airworthiness Directives; BELL HELICOPTER TEXTRON, INC Model 206A and 206B Helicopters Subject: Rfm Limitations Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 07/31/1989 Make: Bell Helicopter Textron Canada Limited Model: 206A | 206B 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: 89-10-11 R1 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: 88-ASW-55 AMENDMENT: 39-6283 AD NUMBER: 89-10-11 R1 SUBJECT HEADING: Airworthiness Directives; BELL HELICOPTER TEXTRON, INC Model 206A and 206B Helicopters ACTION: SUMMARY: DATES: Effective July 31, 1989. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 89-10-11 R1 BELL HELICOPTER TEXTRON, INC.: Amendment 39-6211 as corrected by Amendment 39-6283. (Airworthiness Docket No. 88-ASW-55) Applicability: Bell Helicopter Textron, Inc., Model 206A and 206B helicopters certificated in any category. Compliance: Required as indicated, unless already accomplished. To prevent possible in-flight engine flameout, which could result in the loss of the helicopter, accomplish the following: (a) Within the next 20 days after the effective date of this AD, revise the following Rotorcraft Flight Manual and Rotorcraft Flight Manual Supplements, as applicable. (1) For Model 206A helicopters, revise the FAA approved Rotorcraft Flight Manual (RFM) No. BHT-206A-FM-1 Operating Limitations, Section 1, Type of Operation, by adding the following: The following equipment shall be installed when conducting flight operations in falling and/or blowing snow to prevent possibility of engine flameout: The Particle Separator Engine Air Induction System Kit and the Deflector Kit. (See BHT-206A-FMS-18 and BHT-206A-FMS-24.) or The Snow Winterization Air Induction System. (See BHT-206A-FMS- 11.) (2) For Model 206A helicopters, revise the FAA approved Rotorcraft Flight Manual Supplement (RFMS) Nos. BHT-206A-FMS-18 and BHT-206A-FMS-24 Operating Limitations, Section 1, Type of Operation, by adding the following: The FAA approved Engine Air Induction Deflector Kit No. 206-706-136 shall be installed in conjunction with the Particle Separator Air Inducting Kit No. 206-706-201-17 or 206-706-200-9 when conducting flight operations in falling and/or blowing snow, and the following limits apply: Hover flight in falling and/or blowing snow is limited to a 20-minute duration after which the helicopter must be landed and checked for snow and/or ice accumulation. Flight operations are prohibited when visibility in falling and/or blowing snow is less than one- half (1/2) statute mile. (3) For Model 206B (206B II) helicopters, revise the FAA approved RFM No. BHT-206B-FM-1 Operating Limitations, Section 1, Type of Operation, by adding the following: The following equipment shall be installed when conducting flight operations in falling and/or blowing snow to prevent possibility of engine flameout: The Particle Separator Engine Air Induction System Kit and The Deflector Kit. (See BHT-206B-FMS-15 and BHT-206B-FMS-18.) (4) For Model 206B (206B II) helicopters, revise FAA approved RFMS Nos. BHT-206B-FMS-15 and BHT-206B-FMS-18 Operating Limitations, Section 1, Type of Operation, by adding the following: The FAA approved Engine Air Induction Deflector Kit No. 206-706-136 shall be installed in conjunction with the Particle Separator Air Induction Kit No. 206-706-200-5 or 206-706-201-11 when conducting flight operations in falling and/or blowing snow, and the following limits apply: Hover flight in falling and/or blowing snow is limited to a 20-minute duration after which the helicopter must be landed and checked for snow and/or ice accumulation. Flight operations are prohibited when visibility in falling and/or blowing snow is less than one- half (1/2) statute mile. (5) For Model 206B (206B III) helicopters, revise the FAA approved RFM No. BHT-206B3-FM-1 Operating Limitations, Section 1, Type of Operation, by adding the following: The following equipment shall be installed when conducting flight operations in falling and/or blowing snow to prevent possibility of engine flameout: The Particle Separator Engine Air Induction System Kit and the Deflector Kit. (See BHT-206B3-FMS-10 and BHT-206B3-FMS-12.) (6) For Model 206B (206B III) helicopters, revise the FAA approved RFM Nos. BHT-206B3-FMS-10 and BHT-206B3-FMS-12 Operating Limitations, Section 1, Type of Operation, by adding the following: The FAA approved Engine Air Induction Deflector Kit No. 206-706-136 shall be installed in conjunction with the Particle Separator Air Induction Kit No. 206-706-201 or 206-706-200 when conducting flight operations in falling and/or blowing snow, and the following limits apply: Hover flight in falling and/or blowing snow is limited to a 20-minute duration after which the helicopter must be landed and checked for snow and/or ice accumulation. Flight operations are prohibited when visibility in falling and/or blowing snow is less than one- half (1/2) statute mile. (b) Adding the following RFM and RFMS revisions to the basic RFM manual, as applicable, is an approved alternate method of compliance with paragraph (a) of this AD: BHT-206A-FM-1, Rev. D-39 BHT-206A-FMS-18, Rev. 6 BHT-206A-FMS-24, Rev. 3 BHT-206B-FM-1, Rev. B-39 BHT-206B-FMS-15, Rev. 4 BHT-206B-FMS-18, Rev. 3 BHT-206B3-FM-1, Rev. 18 BHT-206B3-FMS-12, Rev. 1 BHT-206B3-FMS-10, Rev. 1 (c) An alternate method of compliance, which provides an equivalent level of safety, may be used when approved by the Manager, Helicopter Certification Branch, Federal Aviation Administration, Fort Worth, Texas 76193-0170. Airworthiness Directive 89-10-11 (Amendment 39-6211) became effective on June 8, 1989. This amendment (39-6283, AD 89-10-11 R1) becomes effective on July 31, 1989. FOOTER:
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