AD 88-18-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Short Brothers PLC | SD3-60 | Airworthiness Directives; SHORT BROTHERS, PLC Model SD3-60 Series Airplanes |
Unsafe Condition
Pitot tubes may become inoperative due to icing, which could result in erroneous airspeed and altitude indication.
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Required Actions
Replace pitot tubes with code letter 'Z' adjacent to the serial number with ones having a different code letter within 180 days after the effective date, following Service Bulletin SD360-34-09. Alternate compliance may be approved by the FAA Manager, Standardization Branch.
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Compliance Time
Within the next 180 days after the effective date of this AD
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Affected Aircraft
SHORT BROTHERS, PLC Model SD3-60 series airplanes, certificated in any category.
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Federal Register Abstract
Pitot Tubes
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_88-18-05.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 88-18-05 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; SHORT BROTHERS, PLC Model SD3-60 Series Airplanes Subject: Pitot Tubes Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 09/07/1988 Make: Short Brothers PLC Model: SD3-60 Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 88-18-05 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-5993 AD NUMBER: 88-18-05 SUBJECT HEADING: Airworthiness Directives; SHORT BROTHERS, PLC Model SD3-60 Series Airplanes ACTION: SUMMARY: DATES: Effective September 7, 1988. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 88-18-05 SHORT BROTHERS, PLC: Amendment 39-5993. Applies to Model SD3-60 series airplanes, certificated in any category. Compliance required as indicated, unless previously accomplished. To prevent pitot tubes from becoming inoperative due to icing, which could result in erroneous airspeed and altitude indication, accomplish the following: A. Within the next 180 days after the effective date of this AD, replace pitot tubes having the code letter "Z" adjacent to the serial number with one containing a code letter other than "Z," in accordance with accomplishment instructions in Service Bulletin SD360-34-09, dated March 1984. 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, Standardization Branch, ANM-113, FAA, Northwest Mountain Region. NOTE: The request should be forwarded through an FAA Principal Maintenance Inspector (PMI), who may add any comments and then send it to Manager, Standardization Branch, ANM-113. C. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base for the accomplishment of inspections and/or modifications required by 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 Short Brothers, PLC, Service Representative, 2011 Crystal Drive, Suite 713, Arlington, Virginia 22202-3702. These documents may be examined at the FAA, Northwest Mountain Region, 17900 Pacific Highway South, Seattle, Washington, or at the Seattle Aircraft Certification Office, 9010 East Marginal Way South, Seattle, Washington. This amendment, 39-5993, becomes effective September 7, 1988. FOOTER:
Document Text
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AD Final Rules - DRS_88-18-05.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 88-18-05 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; SHORT BROTHERS, PLC Model SD3-60 Series Airplanes Subject: Pitot Tubes Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 09/07/1988 Make: Short Brothers PLC Model: SD3-60 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: 88-18-05 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-5993 AD NUMBER: 88-18-05 SUBJECT HEADING: Airworthiness Directives; SHORT BROTHERS, PLC Model SD3-60 Series Airplanes ACTION: SUMMARY: DATES: Effective September 7, 1988. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 88-18-05 SHORT BROTHERS, PLC: Amendment 39-5993. Applies to Model SD3-60 series airplanes, certificated in any category. Compliance required as indicated, unless previously accomplished. To prevent pitot tubes from becoming inoperative due to icing, which could result in erroneous airspeed and altitude indication, accomplish the following: A. Within the next 180 days after the effective date of this AD, replace pitot tubes having the code letter "Z" adjacent to the serial number with one containing a code letter other than "Z," in accordance with accomplishment instructions in Service Bulletin SD360-34-09, dated March 1984. 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, Standardization Branch, ANM-113, FAA, Northwest Mountain Region. NOTE: The request should be forwarded through an FAA Principal Maintenance Inspector (PMI), who may add any comments and then send it to Manager, Standardization Branch, ANM-113. C. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base for the accomplishment of inspections and/or modifications required by 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 Short Brothers, PLC, Service Representative, 2011 Crystal Drive, Suite 713, Arlington, Virginia 22202-3702. These documents may be examined at the FAA, Northwest Mountain Region, 17900 Pacific Highway South, Seattle, Washington, or at the Seattle Aircraft Certification Office, 9010 East Marginal Way South, Seattle, Washington. This amendment, 39-5993, becomes effective September 7, 1988. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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