AD 75-04-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 747-100 Series | BOEING Model 747 Airplanes |
| aircraft | The Boeing Company | 747-100B Series | BOEING Model 747 Airplanes |
| aircraft | The Boeing Company | 747-100B SUD Series | BOEING Model 747 Airplanes |
| aircraft | The Boeing Company | 747-200B Series | BOEING Model 747 Airplanes |
| aircraft | The Boeing Company | 747-200C Series | BOEING Model 747 Airplanes |
| aircraft | The Boeing Company | 747-200F Series | BOEING Model 747 Airplanes |
| aircraft | The Boeing Company | 747-300 Series | BOEING Model 747 Airplanes |
| aircraft | The Boeing Company | 747-400 Series | BOEING Model 747 Airplanes |
| aircraft | The Boeing Company | 747-400D Series | BOEING Model 747 Airplanes |
| aircraft | The Boeing Company | 747-400F Series | BOEING Model 747 Airplanes |
| aircraft | The Boeing Company | 747SP Series | BOEING Model 747 Airplanes |
| aircraft | The Boeing Company | 747SR Series | BOEING Model 747 Airplanes |
Unsafe Condition
Erroneous information being displayed on flight instruments due to inadequate vertical rise in pitot-static tubing inboard of each pitot-static probe.
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Required Actions
Modify the pitot-static tubing to include a vertical rise just inboard of each pitot-static probe by following Work Package 1, 2, and 3 of Boeing Service Bulletin 747-34-2058 or later FAA approved revisions, or an approved alternative method.
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Compliance Time
Within the next 3,500 hours time in service after the effective date of this AD
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Affected Aircraft
All Model 747 airplanes certificated in all categories listed in Boeing Service Bulletin 747-34-2058 dated January 31, 1974, or later FAA approved revisions.
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Federal Register Abstract
Flight Instruments
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_75-04-06.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 75-04-06 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: BOEING Model 747 Airplanes Subject: Flight Instruments Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 03/10/1975 Make: The Boeing Company Model: 747-100 Series | 747-100B Series | 747-100B SUD Series | 747-200B Series | 747-200C Series | 747-200...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: 75-04-06 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-2086 AD NUMBER: 75-04-06 SUBJECT HEADING: BOEING Model 747 Airplanes ACTION: SUMMARY: DATES: Effective March 10, 1975. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 75-04-06 BOEING: Amendment 39-2086. Applies to all Model 747 airplanes, certificated in all categories, listed in Boeing Service Bulletin 747-34-2058 dated January 31, 1974, or later FAA approved revisions. To prevent erroneous information from being displayed on flight instruments: Within the next 3,500 hours time in service after the effective date of this AD, modify the pitot-static tubing to include a vertical rise just inboard of each pitot-static probe in accordance with Work Package 1, 2, and 3 of Boeing Service Bulletin 747-34-2058, dated January 31, 1974, or later FAA approved revisions, or in a manner approved by the Chief, Engineering and Manufacturing Branch, FAA Northwest Region. The manufacturer's specifications and procedures identified and described in this directive 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 these documents from the manufacturer may obtain copies upon request to the Boeing Commercial Airplane Company, P. O. Box 3707, Seattle, Washington 98124. The documents may be examined at FAA Northwest Region, 9010 East Marginal Way, Seattle, Washington 98108. This amendment becomes effective March 10, 1975. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_75-04-06.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 75-04-06 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: BOEING Model 747 Airplanes Subject: Flight Instruments Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 03/10/1975 Make: The Boeing Company Model: 747-100 Series | 747-100B Series | 747-100B SUD Series | 747-200B Series | 747-200C Series | 747-200...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: 75-04-06 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-2086 AD NUMBER: 75-04-06 SUBJECT HEADING: BOEING Model 747 Airplanes ACTION: SUMMARY: DATES: Effective March 10, 1975. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 75-04-06 BOEING: Amendment 39-2086. Applies to all Model 747 airplanes, certificated in all categories, listed in Boeing Service Bulletin 747-34-2058 dated January 31, 1974, or later FAA approved revisions. To prevent erroneous information from being displayed on flight instruments: Within the next 3,500 hours time in service after the effective date of this AD, modify the pitot-static tubing to include a vertical rise just inboard of each pitot-static probe in accordance with Work Package 1, 2, and 3 of Boeing Service Bulletin 747-34-2058, dated January 31, 1974, or later FAA approved revisions, or in a manner approved by the Chief, Engineering and Manufacturing Branch, FAA Northwest Region. The manufacturer's specifications and procedures identified and described in this directive 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 these documents from the manufacturer may obtain copies upon request to the Boeing Commercial Airplane Company, P. O. Box 3707, Seattle, Washington 98124. The documents may be examined at FAA Northwest Region, 9010 East Marginal Way, Seattle, Washington 98108. This amendment becomes effective March 10, 1975. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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