AD 81-06-51 R1
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 707-100 Long Body | BOEING Model 707/720 Series Airplanes |
| aircraft | The Boeing Company | 707-100B Long Body | BOEING Model 707/720 Series Airplanes |
| aircraft | The Boeing Company | 707-100B Short Body | BOEING Model 707/720 Series Airplanes |
| aircraft | The Boeing Company | 707-200 | BOEING Model 707/720 Series Airplanes |
| aircraft | The Boeing Company | 707-300 Series | BOEING Model 707/720 Series Airplanes |
| aircraft | The Boeing Company | 707-300B Series | BOEING Model 707/720 Series Airplanes |
| aircraft | The Boeing Company | 707-300C Series | BOEING Model 707/720 Series Airplanes |
| aircraft | The Boeing Company | 707-400 Series | BOEING Model 707/720 Series Airplanes |
| aircraft | The Boeing Company | 720 Series | BOEING Model 707/720 Series Airplanes |
| aircraft | The Boeing Company | 720B Series | BOEING Model 707/720 Series Airplanes |
Unsafe Condition
Cracks in the outboard wing could lead to structural failure.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Perform a one-time visual inspection and repeat inspections every year per Boeing Service Bulletin A3308. Spray BMS 3-23 organic corrosion inhibitor. Repair or replace cracked parts before further flight unless approved for ferry flight under FAR 21.197/199.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 75 hours time-in-service unless accomplished since January 1, 1980
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Boeing Model 707/720 series airplanes prior to line number 885
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Outboard Wing Inspection
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_81-06-51_R.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 81-06-51 R1 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: BOEING Model 707/720 Series Airplanes Subject: Outboard Wing Inspection Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 09/30/1982 Make: The Boeing Company Model: 707-100 Long Body | 707-100B Long Body | 707-100B Short Body | 707-200 | 707-300 Series | 707-300B S...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: 81-06-51 R1 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-4445 AD NUMBER: 81-06-51 R1 SUBJECT HEADING: BOEING Model 707/720 Series Airplanes ACTION: SUMMARY: DATES: Effective September 30, 1982. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 81-06-51 R1 BOEING: Amendment 39-4110 as amended by Amendment 39-4445. Applies to Boeing Model 707/720 series airplanes, certificated in all categories, prior to line number 885. To assure continued structural integrity of the outboard wing, accomplish the following within the next 75 hours time-in-service unless accomplished since January 1, 1980: 1. Perform a one-time visual inspection and repeat visual inspections at intervals not exceeding one year, in accordance with Boeing Service Bulletin A3308, Revision 2, dated July 10, 1981, or later revision approved by the Manager, Seattle Area Aircraft Certification Office, FAA Northwest Mountain Region. The first repetitive inspection shall be accomplished within a year of the last inspection (AD 81-06-51) or within 90 days after the effective date of this amendment, whichever occurs later. 2. After inspection, spray the area with BMS 3-23 organic corrosion inhibitor or equivalent. 3. Parts found cracked must be repaired in accordance with Boeing Service Bulletin A3308 or replaced prior to further flight except that airplanes may be flown to a maintenance base for repairs or replacement in accordance with FAR 21.197 and 21.199 with prior approval of the Chief, Seattle Area Aircraft Certification Office, FAA Northwest Region. 4. Equivalent inspections and repairs may be used when approved by the Chief, Seattle Area Aircraft Certification Office, FAA Northwest Region. The manufacturers specifications and procedures identified and described in this amendment are incorporated herein and made a part hereof pursuant to 5 U.S.C. 552(a)(1). All persons affected by this directive who have not already received the service document from the manufacturer may obtain copies upon request to The Boeing Company, P.O. Box 3707, Seattle, Washington 98124. These documents also may be examined at FAA Northwest Mountain Region, 9010 East Marginal Way South, Seattle, Washington. Amendment 39-4110 became effective May 18, 1981, and was effective earlier to those recipients of telegraphic AD T81-06-51, dated March 6, 1981. This Amendment 39-4445 becomes effective September 30, 1982. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_81-06-51_R.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 81-06-51 R1 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: BOEING Model 707/720 Series Airplanes Subject: Outboard Wing Inspection Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 09/30/1982 Make: The Boeing Company Model: 707-100 Long Body | 707-100B Long Body | 707-100B Short Body | 707-200 | 707-300 Series | 707-300B S...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: 81-06-51 R1 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-4445 AD NUMBER: 81-06-51 R1 SUBJECT HEADING: BOEING Model 707/720 Series Airplanes ACTION: SUMMARY: DATES: Effective September 30, 1982. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 81-06-51 R1 BOEING: Amendment 39-4110 as amended by Amendment 39-4445. Applies to Boeing Model 707/720 series airplanes, certificated in all categories, prior to line number 885. To assure continued structural integrity of the outboard wing, accomplish the following within the next 75 hours time-in-service unless accomplished since January 1, 1980: 1. Perform a one-time visual inspection and repeat visual inspections at intervals not exceeding one year, in accordance with Boeing Service Bulletin A3308, Revision 2, dated July 10, 1981, or later revision approved by the Manager, Seattle Area Aircraft Certification Office, FAA Northwest Mountain Region. The first repetitive inspection shall be accomplished within a year of the last inspection (AD 81-06-51) or within 90 days after the effective date of this amendment, whichever occurs later. 2. After inspection, spray the area with BMS 3-23 organic corrosion inhibitor or equivalent. 3. Parts found cracked must be repaired in accordance with Boeing Service Bulletin A3308 or replaced prior to further flight except that airplanes may be flown to a maintenance base for repairs or replacement in accordance with FAR 21.197 and 21.199 with prior approval of the Chief, Seattle Area Aircraft Certification Office, FAA Northwest Region. 4. Equivalent inspections and repairs may be used when approved by the Chief, Seattle Area Aircraft Certification Office, FAA Northwest Region. The manufacturers specifications and procedures identified and described in this amendment are incorporated herein and made a part hereof pursuant to 5 U.S.C. 552(a)(1). All persons affected by this directive who have not already received the service document from the manufacturer may obtain copies upon request to The Boeing Company, P.O. Box 3707, Seattle, Washington 98124. These documents also may be examined at FAA Northwest Mountain Region, 9010 East Marginal Way South, Seattle, Washington. Amendment 39-4110 became effective May 18, 1981, and was effective earlier to those recipients of telegraphic AD T81-06-51, dated March 6, 1981. This Amendment 39-4445 becomes effective September 30, 1982. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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