AD 93-14-01
final rule
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | BAE Systems (Operations) Limited | Jetstream Model 4101 | Airworthiness Directives; Jetstream Aircraft, Limited Model 4101 Airplanes |
Unsafe Condition
Rapid loss of cabin pressure during flight due to damage and/or adhesion failure of the pressure seal and the back-up seal at the main baggage bay door.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Within 30 days after the AD's effective date, measure gaps A and B, record maximum measurements and seal thickness; perform daily visual and tactile inspections for seal damage/disbonding, repair before further flight. Within 10 days after measurements or damage findings, submit reports to Jetstream Aircraft, Limited. Within 60 days after the effective date, install Repair Scheme J41R0370 to terminate repetitive inspections.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 30 days after August 2, 1993 (for initial measurements and inspections), within 10 days after measurements or damage findings (for reporting), and within 60 days after August 2, 1993 (for installing Repair Scheme J41R0370).
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Jetstream Aircraft, Limited Model 4101 airplanes without Modification JM41204 or Repair Scheme J41R0370 installed.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Inspect Pressure and Back-Up Seals
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_93-14-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 93-14-01 Document Type: AD Final Rules Docket Number: 93-NM-94-AD Subject Heading: Airworthiness Directives; Jetstream Aircraft, Limited Model 4101 Airplanes Subject: Inspect Pressure and Back-Up Seals Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 08/02/1993 Make: BAE Systems (Operations) Limited Model: Jetstream Model 4101 Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 93-14-01 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: 93-NM-94-AD AMENDMENT: 39-8625 AD NUMBER: 93-14-01 SUBJECT HEADING: Airworthiness Directives; Jetstream Aircraft, Limited Model 4101 Airplanes ACTION: SUMMARY: DATES: Effective on August 2, 1993. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 93-14-01 JETSTREAM AIRCRAFT, LIMITED: Amendment 39-8625. Docket 93-NM-94-AD. Applicability: Model 4101 airplanes on which Modification JM41204 or Repair Scheme J41R0370 has not been installed, certificated in any category. Compliance: Required as indicated, unless accomplished previously. To prevent rapid loss of cabin pressure during flight, accomplish the following: (a) Within 30 days after the effective date of this AD, accomplish the requirements of paragraphs (a)(1) and (a)(2) of this AD at the lower section of the main baggage bay door in accordance with Jetstream Series 4100 Alert Service Bulletin J41-A52-016, dated May 18, 1993. (1) Measure gap "A", forward and aft of the center line, and record the maximum measurement; measure gap "B", forward and aft of the center line, to determine the location of the maximum gap, and record the maximum measurement and its location; and measure the thickness of the back-up seal at the location of the maximum measurement for gap "B", and record the thickness in accordance with the service bulletin. (2) Perform a detailed visual inspection and an inspection by feel to detect damage and/or adhesion failure of the pressure seal and the back-up seal, and prior to further flight, repair any damaged and/or disbonded seal in accordance with the service bulletin. Repeat this inspection thereafter after the last flight of the airplane each day. (b) Within 10 days after measuring the gaps or finding damage and/or disbonding to the seals, submit a report of any inspection findings, to Jetstream Aircraft, Limited, in accordance with Jetstream Series 4100 Alert Service Bulletin J41-A52-016, dated May 18, 1993. Report gap measurements, and damage and/or disbonding to the seals, to: Customer Support Manager, Jetstream Aircraft Ltd., Prestwick, England; fax 011-44-292-671620. Information collection requirements contained in this regulation have been approved by the Office of Management and Budget (OMB) under the provisions of the Paperwork Reduction Act of 1980 (44 U.S.C. 3501 et seq.) and have been assigned OMB Control Number 2120-0056. (c) Within 60 days after the effective date of this AD, install Jetstream Aircraft, Limited, Repair Scheme J41R0370 in accordance with Jetstream Aircraft Limited Drawing 141R0370, Issue 3, dated May 27, 1993. Installation of Jetstream Aircraft, Limited, Repair Scheme J41R0370, constitutes terminating action for the repetitive inspection requirements of this AD. (d) An alternative method of compliance or adjustment of the compliance time that provides an acceptable level of safety may be used if approved by the Manager, Standardization Branch, ANM-113, FAA, Transport Airplane Directorate. Operators shall submit their requests through an appropriate FAA Principal Maintenance Inspector, who may add comments and then send it to the Manager, Standardization Branch, ANM-113. NOTE: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Standardization Branch, ANM-113. (e) Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate the airplane to a location where the requirements of this AD can be accomplished. (f) The measurements, inspections, repairs of damaged and/or disbonded seals, recording and reporting requirements shall be done in accordance with Jetstream Series 4100 Alert Service Bulletin J41-A52-016, dated May 18, 1993. The repair scheme shall be done in accordance with Jetstream Aircraft Limited Drawing 141R0370, Issue 3, dated May 27, 1993, which contains the following list of effective pages: Sheet Number Revision Level Shown on Page Date Shown on Page 1, 5-6 3 May 27, 1993 2-4 1 May 14, 1993 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 Jetstream Aircraft, Inc., P.O. Box 16029, Dulles International Airport, Washington, DC 20041-6029. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC. (g) This amendment becomes effective on August 2, 1993. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_93-14-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 93-14-01 Document Type: AD Final Rules Docket Number: 93-NM-94-AD Subject Heading: Airworthiness Directives; Jetstream Aircraft, Limited Model 4101 Airplanes Subject: Inspect Pressure and Back-Up Seals Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 08/02/1993 Make: BAE Systems (Operations) Limited Model: Jetstream Model 4101 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: 93-14-01 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: 93-NM-94-AD AMENDMENT: 39-8625 AD NUMBER: 93-14-01 SUBJECT HEADING: Airworthiness Directives; Jetstream Aircraft, Limited Model 4101 Airplanes ACTION: SUMMARY: DATES: Effective on August 2, 1993. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 93-14-01 JETSTREAM AIRCRAFT, LIMITED: Amendment 39-8625. Docket 93-NM-94-AD. Applicability: Model 4101 airplanes on which Modification JM41204 or Repair Scheme J41R0370 has not been installed, certificated in any category. Compliance: Required as indicated, unless accomplished previously. To prevent rapid loss of cabin pressure during flight, accomplish the following: (a) Within 30 days after the effective date of this AD, accomplish the requirements of paragraphs (a)(1) and (a)(2) of this AD at the lower section of the main baggage bay door in accordance with Jetstream Series 4100 Alert Service Bulletin J41-A52-016, dated May 18, 1993. (1) Measure gap "A", forward and aft of the center line, and record the maximum measurement; measure gap "B", forward and aft of the center line, to determine the location of the maximum gap, and record the maximum measurement and its location; and measure the thickness of the back-up seal at the location of the maximum measurement for gap "B", and record the thickness in accordance with the service bulletin. (2) Perform a detailed visual inspection and an inspection by feel to detect damage and/or adhesion failure of the pressure seal and the back-up seal, and prior to further flight, repair any damaged and/or disbonded seal in accordance with the service bulletin. Repeat this inspection thereafter after the last flight of the airplane each day. (b) Within 10 days after measuring the gaps or finding damage and/or disbonding to the seals, submit a report of any inspection findings, to Jetstream Aircraft, Limited, in accordance with Jetstream Series 4100 Alert Service Bulletin J41-A52-016, dated May 18, 1993. Report gap measurements, and damage and/or disbonding to the seals, to: Customer Support Manager, Jetstream Aircraft Ltd., Prestwick, England; fax 011-44-292-671620. Information collection requirements contained in this regulation have been approved by the Office of Management and Budget (OMB) under the provisions of the Paperwork Reduction Act of 1980 (44 U.S.C. 3501 et seq.) and have been assigned OMB Control Number 2120-0056. (c) Within 60 days after the effective date of this AD, install Jetstream Aircraft, Limited, Repair Scheme J41R0370 in accordance with Jetstream Aircraft Limited Drawing 141R0370, Issue 3, dated May 27, 1993. Installation of Jetstream Aircraft, Limited, Repair Scheme J41R0370, constitutes terminating action for the repetitive inspection requirements of this AD. (d) An alternative method of compliance or adjustment of the compliance time that provides an acceptable level of safety may be used if approved by the Manager, Standardization Branch, ANM-113, FAA, Transport Airplane Directorate. Operators shall submit their requests through an appropriate FAA Principal Maintenance Inspector, who may add comments and then send it to the Manager, Standardization Branch, ANM-113. NOTE: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Standardization Branch, ANM-113. (e) Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate the airplane to a location where the requirements of this AD can be accomplished. (f) The measurements, inspections, repairs of damaged and/or disbonded seals, recording and reporting requirements shall be done in accordance with Jetstream Series 4100 Alert Service Bulletin J41-A52-016, dated May 18, 1993. The repair scheme shall be done in accordance with Jetstream Aircraft Limited Drawing 141R0370, Issue 3, dated May 27, 1993, which contains the following list of effective pages: Sheet Number Revision Level Shown on Page Date Shown on Page 1, 5-6 3 May 27, 1993 2-4 1 May 14, 1993 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 Jetstream Aircraft, Inc., P.O. Box 16029, Dulles International Airport, Washington, DC 20041-6029. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC. (g) This amendment becomes effective on August 2, 1993. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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