AD 89-15-08
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 737-100 Series | Airworthiness Directives; BOEING Model 737 Series Airplanes |
| aircraft | The Boeing Company | 737-200 Series | Airworthiness Directives; BOEING Model 737 Series Airplanes |
| aircraft | The Boeing Company | 737-200C Series | Airworthiness Directives; BOEING Model 737 Series Airplanes |
| aircraft | The Boeing Company | 737-300 Series | Airworthiness Directives; BOEING Model 737 Series Airplanes |
| aircraft | The Boeing Company | 737-400 Series | Airworthiness Directives; BOEING Model 737 Series Airplanes |
| aircraft | The Boeing Company | 737-500 Series | Airworthiness Directives; BOEING Model 737 Series Airplanes |
| aircraft | The Boeing Company | 737-600 Series | Airworthiness Directives; BOEING Model 737 Series Airplanes |
| aircraft | The Boeing Company | 737-700 Series | Airworthiness Directives; BOEING Model 737 Series Airplanes |
| aircraft | The Boeing Company | 737-800 Series | Airworthiness Directives; BOEING Model 737 Series Airplanes |
Unsafe Condition
Missing fasteners in the second observer's seat installation could compromise structural integrity.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Install a placard stating 'NO OCCUPANCY' within 30 days after the effective date. Inspect for missing fasteners within 6 months after the effective date; repair prior to further flight if found. Use alternate compliance with FAA approval.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 30 days after the effective date and within 6 months after the effective date
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
All Model 737 series airplanes through line number 1581 equipped with a second observer's seat.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Observers Seat
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_89-15-08.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 89-15-08 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; BOEING Model 737 Series Airplanes Subject: Observers Seat Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 08/24/1989 Make: The Boeing Company Model: 737-100 Series | 737-200 Series | 737-200C Series | 737-300 Series | 737-400 Series | 737-500 Series...Show more 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: 89-15-08 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-6269 AD NUMBER: 89-15-08 SUBJECT HEADING: Airworthiness Directives; BOEING Model 737 Series Airplanes ACTION: SUMMARY: DATES: Effective August 24, 1989. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 89-15-08 BOEING: Amendment 39-6269. Applicability: All Model 737 series airplanes through line number 1581, equipped with a second observer's seat, certificated in any category. Compliance: Required as indicated, unless previously accomplished. To ensure structural integrity of the second observer's seat, accomplish the following: A. Within 30 days after the effective date of this AD, install a placard above the second observer's seat, stating: "NO OCCUPANCY." This placard may be removed once the terminating action of paragraph B., below, has been accomplished. B. Within 6 months after the effective date of this AD, inspect the second observer's seat installation for missing fasteners, in accordance with Boeing Service Letter 737-SL-25-41, dated October 14, 1988, or Boeing Service Letter 737-SL-25-41-A, dated April 20, 1989. If fasteners are found to be missing, repair prior to further flight, in accordance with the service letter. 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 Manager, Seattle Aircraft Certification Office, FAA, Northwest Mountain Region. NOTE: The request should be forwarded through an FAA Principal Maintenance Inspector (PMI), who will either concur or comment, and then send it to the Manager, Seattle Aircraft Certification Office. 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. 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, Transport Airplane Directorate, Northwest Mountain Region, 17900 Pacific Highway South, Seattle, Washington, or Seattle Aircraft Certification Office, FAA, Northwest Mountain Region, 9010 East Marginal Way South, Seattle, Washington. This amendment (39-6269, AD 89-15-08) becomes effective on August 24, 1989. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_89-15-08.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 89-15-08 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; BOEING Model 737 Series Airplanes Subject: Observers Seat Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 08/24/1989 Make: The Boeing Company Model: 737-100 Series | 737-200 Series | 737-200C Series | 737-300 Series | 737-400 Series | 737-500 Series...Show more 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: 89-15-08 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-6269 AD NUMBER: 89-15-08 SUBJECT HEADING: Airworthiness Directives; BOEING Model 737 Series Airplanes ACTION: SUMMARY: DATES: Effective August 24, 1989. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 89-15-08 BOEING: Amendment 39-6269. Applicability: All Model 737 series airplanes through line number 1581, equipped with a second observer's seat, certificated in any category. Compliance: Required as indicated, unless previously accomplished. To ensure structural integrity of the second observer's seat, accomplish the following: A. Within 30 days after the effective date of this AD, install a placard above the second observer's seat, stating: "NO OCCUPANCY." This placard may be removed once the terminating action of paragraph B., below, has been accomplished. B. Within 6 months after the effective date of this AD, inspect the second observer's seat installation for missing fasteners, in accordance with Boeing Service Letter 737-SL-25-41, dated October 14, 1988, or Boeing Service Letter 737-SL-25-41-A, dated April 20, 1989. If fasteners are found to be missing, repair prior to further flight, in accordance with the service letter. 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 Manager, Seattle Aircraft Certification Office, FAA, Northwest Mountain Region. NOTE: The request should be forwarded through an FAA Principal Maintenance Inspector (PMI), who will either concur or comment, and then send it to the Manager, Seattle Aircraft Certification Office. 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. 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, Transport Airplane Directorate, Northwest Mountain Region, 17900 Pacific Highway South, Seattle, Washington, or Seattle Aircraft Certification Office, FAA, Northwest Mountain Region, 9010 East Marginal Way South, Seattle, Washington. This amendment (39-6269, AD 89-15-08) becomes effective on August 24, 1989. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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