AD 90-17-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 747-400 Series | Airworthiness Directives; BOEING Model 747-400 Series Airplanes |
Unsafe Condition
Failure of PSU closure panels to remain secured could result in their falling and causing injury to passengers.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Modify the PSU rails in accordance with Boeing Service Bulletin 747-25-2853 dated March 1, 1990. An alternate means of compliance or adjustment of the compliance time may be used if approved by the Manager, Seattle Aircraft Certification Office.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 90 days after the effective date of this AD, unless previously accomplished
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Affected Aircraft
Model 747-400 series airplanes listed in Boeing Service Bulletin 747-25-2853 dated March 1, 1990, certificated in any category
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Federal Register Abstract
PSU Rails
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_90-17-07.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 90-17-07 Document Type: AD Final Rules Docket Number: 90-NM-58-AD Subject Heading: Airworthiness Directives; BOEING Model 747-400 Series Airplanes Subject: PSU Rails Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 09/17/1990 Make: The Boeing Company Model: 747-400 Series Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 90-17-07 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: 90-NM-58-AD AMENDMENT: 39-6695 AD NUMBER: 90-17-07 SUBJECT HEADING: Airworthiness Directives; BOEING Model 747-400 Series Airplanes ACTION: SUMMARY: DATES: Effective September 17, 1990. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 90-17-07 BOEING: Amendment 39-6695. Docket No. 90-NM-58-AD. Applicability: Model 747-400 series airplanes, listed in Boeing Service Bulletin 747-25- 2853, dated March 1, 1990, certificated in any category. Compliance: Required within the next 90 days after the effective date of this AD, unless previously accomplished. To prevent injury to passengers by falling PSU closure panels, accomplish the following: A. Modify the PSU rails in accordance with Boeing Service Bulletin 747-25-2853, dated March 1, 1990. B. 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 Manager, Seattle Aircraft Certification Office (ACO), FAA, Transport Airplane Directorate. NOTE: The request should be submitted directly to the Manager, Seattle Aircraft Certification Office (ACO), and a copy sent to the cognizant FAA Principal Inspector (PI). The PI will then forward comments or concurrence to the ACO. C. 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. All persons affected by this directive who have not already received the appropriate service documents from the manufacturer may obtain copies upon request to Boeing Commercial Airplanes, P.O. Box 3707, Seattle, Washington 98124. These documents may be examined at the FAA, Northwest Mountain Region, Transport Airplane Directorate, 1601 Lind Avenue, S.W., Renton, Washington. This amendment (39-6695, AD 90-17-07) becomes effective on September 17, 1990. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_90-17-07.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 90-17-07 Document Type: AD Final Rules Docket Number: 90-NM-58-AD Subject Heading: Airworthiness Directives; BOEING Model 747-400 Series Airplanes Subject: PSU Rails Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 09/17/1990 Make: The Boeing Company Model: 747-400 Series 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: 90-17-07 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: 90-NM-58-AD AMENDMENT: 39-6695 AD NUMBER: 90-17-07 SUBJECT HEADING: Airworthiness Directives; BOEING Model 747-400 Series Airplanes ACTION: SUMMARY: DATES: Effective September 17, 1990. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 90-17-07 BOEING: Amendment 39-6695. Docket No. 90-NM-58-AD. Applicability: Model 747-400 series airplanes, listed in Boeing Service Bulletin 747-25- 2853, dated March 1, 1990, certificated in any category. Compliance: Required within the next 90 days after the effective date of this AD, unless previously accomplished. To prevent injury to passengers by falling PSU closure panels, accomplish the following: A. Modify the PSU rails in accordance with Boeing Service Bulletin 747-25-2853, dated March 1, 1990. B. 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 Manager, Seattle Aircraft Certification Office (ACO), FAA, Transport Airplane Directorate. NOTE: The request should be submitted directly to the Manager, Seattle Aircraft Certification Office (ACO), and a copy sent to the cognizant FAA Principal Inspector (PI). The PI will then forward comments or concurrence to the ACO. C. 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. All persons affected by this directive who have not already received the appropriate service documents from the manufacturer may obtain copies upon request to Boeing Commercial Airplanes, P.O. Box 3707, Seattle, Washington 98124. These documents may be examined at the FAA, Northwest Mountain Region, Transport Airplane Directorate, 1601 Lind Avenue, S.W., Renton, Washington. This amendment (39-6695, AD 90-17-07) becomes effective on September 17, 1990. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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