AD 91-26-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bombardier Inc. | DHC-8-102 | Airworthiness Directives; Boeing Of Canada, Ltd., De Havilland Division Models DHC-8-102 and DHC-8-103 Series Airplanes |
| aircraft | Bombardier Inc. | DHC-8-103 | Airworthiness Directives; Boeing Of Canada, Ltd., De Havilland Division Models DHC-8-102 and DHC-8-103 Series Airplanes |
Unsafe Condition
Reduced engine-out takeoff and climb performance of the airplane due to use of engine bleed air during takeoffs and landings.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove Supplement No. 21 from the AFM, revise the AFM Limitations Section to prohibit engine bleed air use during takeoffs and landings, and insert this AD into the AFM. Alternative methods may be approved by the FAA.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 7 days after the effective date of this AD
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Boeing Of Canada, Ltd., De Havilland Division Models DHC-8-102 and DHC-8-103 series airplanes, serial numbers 3 through 287
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
AFM Changes - Engine Bleed Air
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_91-26-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 91-26-02 Document Type: AD Final Rules Docket Number: 91-NM-183-AD Subject Heading: Airworthiness Directives; Boeing Of Canada, Ltd., De Havilland Division Models DHC-8-102 and DHC-8-1...Show more Subject: AFM Changes - Engine Bleed Air Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 12/23/1991 Make: Bombardier Inc. Model: DHC-8-102 | DHC-8-103 Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 91-26-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: 91-NM-183-AD AMENDMENT: 39-8113 AD NUMBER: 91-26-02 SUBJECT HEADING: Airworthiness Directives; Boeing Of Canada, Ltd., De Havilland Division Models DHC-8-102 and DHC-8-103 Series Airplanes ACTION: SUMMARY: DATES: Effective December 23, 1991. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 91-26-02 BOEING OF CANADA, LTD., DE HAVILLAND DIVISION: Amendment 39- 8113. Docket No. 91-NM-183-AD. Applicability: Model DHC-8-102 and -103 series airplanes, serial numbers 3 through 287, certificated in any category. Compliance: Required as indicated, unless previously accomplished. To prevent reduced engine-out takeoff and climb performance of the airplane, accomplish the following: (a) Within 7 days after the effective date of this AD, remove Supplement No. 21, dated May 30, 1990 (for Model DHC-8-102 series airplanes), or September 26, 1990 (for Model DHC-8-103 series airplanes), from the de Havilland Airplane Flight Manual PSM 1-81-1A. (b) Within 7 days after the effective date of this AD, revise the Limitations Section of the FAA-approved Airplane Flight Manual (AFM) by inserting the following statement. This may be accomplished by inserting a copy of this AD into the AFM. "Supplement No. 21, dated May 30, 1990 (for Model DHC-8-102 series airplanes), or September 26, 1990 (for Model DHC-8-103 series airplanes), of the de Havilland Airplane Flight Manual PSM 1-81-1A, is withdrawn. Use of engine bleed air during takeoffs and landings is prohibited." (c) An alternative method of compliance or adjustment of the compliance time, which provides an acceptable level of safety, may be used when approved by the Manager, Standardization Branch, ANM-113, FAA, Transport Airplane Directorate. NOTE: The request should be forwarded through an FAA Principal Maintenance Inspector, who may concur or comment and then send it to the Manager, Standardization Branch, ANM-113. (d) Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base in order to comply with the requirements of this AD. (e) This amendment (39-8113, AD 91-26-02) becomes effective on December 23, 1991. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_91-26-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 91-26-02 Document Type: AD Final Rules Docket Number: 91-NM-183-AD Subject Heading: Airworthiness Directives; Boeing Of Canada, Ltd., De Havilland Division Models DHC-8-102 and DHC-8-1...Show more Subject: AFM Changes - Engine Bleed Air Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 12/23/1991 Make: Bombardier Inc. Model: DHC-8-102 | DHC-8-103 Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 91-26-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: 91-NM-183-AD AMENDMENT: 39-8113 AD NUMBER: 91-26-02 SUBJECT HEADING: Airworthiness Directives; Boeing Of Canada, Ltd., De Havilland Division Models DHC-8-102 and DHC-8-103 Series Airplanes ACTION: SUMMARY: DATES: Effective December 23, 1991. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 91-26-02 BOEING OF CANADA, LTD., DE HAVILLAND DIVISION: Amendment 39- 8113. Docket No. 91-NM-183-AD. Applicability: Model DHC-8-102 and -103 series airplanes, serial numbers 3 through 287, certificated in any category. Compliance: Required as indicated, unless previously accomplished. To prevent reduced engine-out takeoff and climb performance of the airplane, accomplish the following: (a) Within 7 days after the effective date of this AD, remove Supplement No. 21, dated May 30, 1990 (for Model DHC-8-102 series airplanes), or September 26, 1990 (for Model DHC-8-103 series airplanes), from the de Havilland Airplane Flight Manual PSM 1-81-1A. (b) Within 7 days after the effective date of this AD, revise the Limitations Section of the FAA-approved Airplane Flight Manual (AFM) by inserting the following statement. This may be accomplished by inserting a copy of this AD into the AFM. "Supplement No. 21, dated May 30, 1990 (for Model DHC-8-102 series airplanes), or September 26, 1990 (for Model DHC-8-103 series airplanes), of the de Havilland Airplane Flight Manual PSM 1-81-1A, is withdrawn. Use of engine bleed air during takeoffs and landings is prohibited." (c) An alternative method of compliance or adjustment of the compliance time, which provides an acceptable level of safety, may be used when approved by the Manager, Standardization Branch, ANM-113, FAA, Transport Airplane Directorate. NOTE: The request should be forwarded through an FAA Principal Maintenance Inspector, who may concur or comment and then send it to the Manager, Standardization Branch, ANM-113. (d) Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base in order to comply with the requirements of this AD. (e) This amendment (39-8113, AD 91-26-02) becomes effective on December 23, 1991. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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