AD 70-16-04
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
Failure of the Main Cabin Cove Light Ballast Capacitors could cause a fire.
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Required Actions
Deactivate the main cabin cove light circuits until either relocate all main cabin ballast capacitors to the inboard side of the cove light race way as described in Boeing Service Bulletin No. 2986 or perform an equivalent modification approved by the Chief, Aircraft Engineering Division, FAA Western Region.
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Compliance Time
within 100 hours time in service after the effective date of this AD unless already accomplished
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Affected Aircraft
Boeing Model 707/720 Series Airplanes as listed on Boeing Service Bulletin No. 2986 dated May 15, 1970, or later FAA approved revisions
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Federal Register Abstract
Cabin Cove Light Ballast
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_70-16-04.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 70-16-04 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: BOEING Model 707/720 Series Airplanes Subject: Cabin Cove Light Ballast Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 08/01/1970 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: 70-16-04 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1052 AD NUMBER: 70-16-04 SUBJECT HEADING: BOEING Model 707/720 Series Airplanes ACTION: SUMMARY: DATES: Effective August 1, 1970. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 70-16-04 BOEING: Amdt. 39-1052. Applies to Boeing Model 707/720 Series Airplanes. (Effectivity listed on Boeing Service Bulletin No. 2986 dated May 15, 1970, or later FAA approved revisions). Compliance required within 100 hours time in service after the effective date of this AD unless already accomplished. To prevent fire caused by failure of the Main Cabin Cove Light Ballast Capacitors deactivate the main cabin cove light circuits until one of the following items has been accomplished: (1) Relocate all main cabin ballast capacitors to the inboard side of the cove light race way as described in Boeing Service Bulletin No. 2986 dated May 15, 1970, or later FAA approved revisions. (2) Perform an equivalent modification approved by the Chief, Aircraft Engineering Division, FAA Western Region. This Amendment becomes effective on August 1, 1970. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_70-16-04.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 70-16-04 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: BOEING Model 707/720 Series Airplanes Subject: Cabin Cove Light Ballast Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 08/01/1970 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: 70-16-04 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1052 AD NUMBER: 70-16-04 SUBJECT HEADING: BOEING Model 707/720 Series Airplanes ACTION: SUMMARY: DATES: Effective August 1, 1970. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 70-16-04 BOEING: Amdt. 39-1052. Applies to Boeing Model 707/720 Series Airplanes. (Effectivity listed on Boeing Service Bulletin No. 2986 dated May 15, 1970, or later FAA approved revisions). Compliance required within 100 hours time in service after the effective date of this AD unless already accomplished. To prevent fire caused by failure of the Main Cabin Cove Light Ballast Capacitors deactivate the main cabin cove light circuits until one of the following items has been accomplished: (1) Relocate all main cabin ballast capacitors to the inboard side of the cove light race way as described in Boeing Service Bulletin No. 2986 dated May 15, 1970, or later FAA approved revisions. (2) Perform an equivalent modification approved by the Chief, Aircraft Engineering Division, FAA Western Region. This Amendment becomes effective on August 1, 1970. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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