AD 89-09-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Saab AB, Saab Aerosystems | 340A (SAAB SF340A) | Airworthiness Directives; SAAB-SCANIA Model SF-340A Series Airplanes |
Unsafe Condition
Reduced structural capability of the fuselage due to potential leakage of hot air and delamination of the stringer to skin bonding in the Environmental Control System (ECS) compartment.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the insulation in the ECS compartment and secure the Gamah Couplings with a locking wire per SF340-21-022. If hot air leakage is found, inspect for delamination of the stringer to skin bonding and repair as needed per SF340-53-025. Submit alternate compliance requests through an FAA PMI to the Manager, Standardization Branch, ANM-113.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 30 days after the effective date of this AD (May 16, 1989) for the initial inspection. If leakage is found, prior to further flight for the subsequent inspection and repair.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Saab AB, Saab Aerosystems Model SF-340A series airplanes, serial numbers -003 through -138, inclusive.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Environmental Control System
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_89-09-04.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 89-09-04 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; SAAB-SCANIA Model SF-340A Series Airplanes Subject: Environmental Control System Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 05/16/1989 Make: Saab AB, Saab Aerosystems Model: 340A (SAAB SF340A) Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 89-09-04 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-6194 AD NUMBER: 89-09-04 SUBJECT HEADING: Airworthiness Directives; SAAB-SCANIA Model SF-340A Series Airplanes ACTION: SUMMARY: DATES: Effective May 16, 1989. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 89-09-04 SAAB-SCANIA: Amendment 39-6194. Applicability: Model SF-340A series airplanes, serial numbers -003 through -138, inclusive, certificated in any category. Compliance: Required as indicated below, unless previously accomplished. To prevent reduced structural capability of the fuselage, accomplish the following: A. Within 30 days after the effective date of this AD, perform an inspection of the insulation in the Environmental Control System (ECS) compartment and secure the Gamah Couplings with a locking wire, in accordance with SAAB-Scania Service Bulletin SF340-21-022, dated October 31, 1988. B. If the inspection required by paragraph A., above, reveals leakage of hot air, prior to further flight, inspect for delamination of the stringer to skin bonding, and repair, if necessary, in accordance with SAAB-Scania Service Bulletin SF340-53-025, dated October 31, 1988. C. An alternate means of compliance or adjustment of the compliance time, which provides an acceptable level of safety, may be used when approved by the Manger, Standardization Branch, ANM-113, FAA, Northwest Mountain Region. NOTE: The request should be forwarded through an FAA Principal Maintenance Inspector (PMI), who may add any comments 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 for the accomplishment of inspections and/or modifications required by this AD. All persons affected by this directive who have not already received the appropriate service documents from the manufacturer may obtain copies upon request to SAAB-Scania AB, S-581 88, Linkoping, Sweden. These documents may be examined at the FAA, Northwest Mountain Region, 17900 Pacific Highway South, Seattle, Washington, or at the Seattle Aircraft Certification Office, 9010 East Marginal Way South, Seattle, Washington. This amendment (39-6194, AD 89-09-04) becomes effective on May 16, 1989. FOOTER:
Document Text
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AD Final Rules - DRS_89-09-04.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 89-09-04 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; SAAB-SCANIA Model SF-340A Series Airplanes Subject: Environmental Control System Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 05/16/1989 Make: Saab AB, Saab Aerosystems Model: 340A (SAAB SF340A) 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: 89-09-04 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-6194 AD NUMBER: 89-09-04 SUBJECT HEADING: Airworthiness Directives; SAAB-SCANIA Model SF-340A Series Airplanes ACTION: SUMMARY: DATES: Effective May 16, 1989. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 89-09-04 SAAB-SCANIA: Amendment 39-6194. Applicability: Model SF-340A series airplanes, serial numbers -003 through -138, inclusive, certificated in any category. Compliance: Required as indicated below, unless previously accomplished. To prevent reduced structural capability of the fuselage, accomplish the following: A. Within 30 days after the effective date of this AD, perform an inspection of the insulation in the Environmental Control System (ECS) compartment and secure the Gamah Couplings with a locking wire, in accordance with SAAB-Scania Service Bulletin SF340-21-022, dated October 31, 1988. B. If the inspection required by paragraph A., above, reveals leakage of hot air, prior to further flight, inspect for delamination of the stringer to skin bonding, and repair, if necessary, in accordance with SAAB-Scania Service Bulletin SF340-53-025, dated October 31, 1988. C. An alternate means of compliance or adjustment of the compliance time, which provides an acceptable level of safety, may be used when approved by the Manger, Standardization Branch, ANM-113, FAA, Northwest Mountain Region. NOTE: The request should be forwarded through an FAA Principal Maintenance Inspector (PMI), who may add any comments 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 for the accomplishment of inspections and/or modifications required by this AD. All persons affected by this directive who have not already received the appropriate service documents from the manufacturer may obtain copies upon request to SAAB-Scania AB, S-581 88, Linkoping, Sweden. These documents may be examined at the FAA, Northwest Mountain Region, 17900 Pacific Highway South, Seattle, Washington, or at the Seattle Aircraft Certification Office, 9010 East Marginal Way South, Seattle, Washington. This amendment (39-6194, AD 89-09-04) becomes effective on May 16, 1989. FOOTER:
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