AD 72-18-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | MD Helicopters, Inc. | 369H | Airworthiness Directives; Hughes Model 369H Series Helicopters |
| aircraft | MD Helicopters, Inc. | 369HE | Airworthiness Directives; Hughes Model 369H Series Helicopters |
| aircraft | MD Helicopters, Inc. | 369HM | Airworthiness Directives; Hughes Model 369H Series Helicopters |
| aircraft | MD Helicopters, Inc. | 369HS | Airworthiness Directives; Hughes Model 369H Series Helicopters |
Unsafe Condition
Failure to install new Vne placards and revise the Rotorcraft Flight Manual could result in exceeding the correct Vne limitations above 3000 feet density altitude.
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Required Actions
Install new Vne placards in accordance with Hughes Service Information Notice No. HN-45 or later FAA-approved revisions, and revise the Rotorcraft Flight Manual with the RFM revision dated 2 November 1971.
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Compliance Time
within the next 25 hours time in service after the effective date of this AD
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Affected Aircraft
MD Helicopters, Inc. Model 369HE (Serial Nos. 0101E thru 0215E), Model 369HM (Serial Nos. 0101M thru 0213M), Model 369HS (Serial Nos. 0101S thru 0357S) Helicopters certified in all categories.
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Federal Register Abstract
VNE Limitations
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_72-18-04.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 72-18-04 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Hughes Model 369H Series Helicopters Subject: VNE Limitations Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 08/31/1972 Make: MD Helicopters, Inc. Model: 369H | 369HE | 369HM | 369HS Product Type: Aircraft Product Subtype: Rotorcraft Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 72-18-04 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1509 AD NUMBER: 72-18-04 SUBJECT HEADING: Airworthiness Directives; Hughes Model 369H Series Helicopters ACTION: SUMMARY: DATES: Effective August 31, 1972. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 72-18-04 HUGHES: Amendment 39-1509. Applies to Model 369H Series; Model 369HE, Serial Nos. 0101E thru 0215E, Model 369HM, Serial Nos. 0101M thru 0213M, Model 369HS, Serial Nos. 0101S thru 0357S Helicopters certified in all categories. Compliance required within the next 25 hours time in service after the effective date of this AD, unless already accomplished. To eliminate the possibility of exceeding the correct Vne limitations above 3000 feet density altitude, accomplish the following: (a) Install new Vne placards in accordance with Hughes Service Information Notice No. HN-45, dated 29 February 1972, or later FAA-approved revisions, or an equivalent installation approved by the Chief, Aircraft Engineering Division, FAA Western Region. New placards are available from the Manufacturer and Service Centers. (b) Revise Rotorcraft Flight Manual with RFM revision dated 2 November 1971. RFM revisions are available from the Manufacturer and Service Centers. This amendment becomes effective August 31, 1972. FOOTER:
Document Text
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AD Final Rules - DRS_72-18-04.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 72-18-04 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Hughes Model 369H Series Helicopters Subject: VNE Limitations Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 08/31/1972 Make: MD Helicopters, Inc. Model: 369H | 369HE | 369HM | 369HS Product Type: Aircraft Product Subtype: Rotorcraft Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 72-18-04 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1509 AD NUMBER: 72-18-04 SUBJECT HEADING: Airworthiness Directives; Hughes Model 369H Series Helicopters ACTION: SUMMARY: DATES: Effective August 31, 1972. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 72-18-04 HUGHES: Amendment 39-1509. Applies to Model 369H Series; Model 369HE, Serial Nos. 0101E thru 0215E, Model 369HM, Serial Nos. 0101M thru 0213M, Model 369HS, Serial Nos. 0101S thru 0357S Helicopters certified in all categories. Compliance required within the next 25 hours time in service after the effective date of this AD, unless already accomplished. To eliminate the possibility of exceeding the correct Vne limitations above 3000 feet density altitude, accomplish the following: (a) Install new Vne placards in accordance with Hughes Service Information Notice No. HN-45, dated 29 February 1972, or later FAA-approved revisions, or an equivalent installation approved by the Chief, Aircraft Engineering Division, FAA Western Region. New placards are available from the Manufacturer and Service Centers. (b) Revise Rotorcraft Flight Manual with RFM revision dated 2 November 1971. RFM revisions are available from the Manufacturer and Service Centers. This amendment becomes effective August 31, 1972. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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