AD 60-10-10
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing Defense & Space Group | 44A | Airworthiness Directives; VERTOL Model 44 Series Helicopters |
| aircraft | Boeing Defense & Space Group | 44B | Airworthiness Directives; VERTOL Model 44 Series Helicopters |
Unsafe Condition
Forward rotor blades P/N 42R1002-9, -13, -15, -19, -90, -130, -131, -132, -150, -152, and modified blades P/N 42R1002-137 and -139 (forward) and P/N 42R1002-2, -4, -20, -40 (aft) may fail due to fatigue after accumulating specified service hours, posing a risk of blade separation and loss of control.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Retire forward rotor blades P/N 42R1002-9, -13, -15, -19, -90, -130, -131, -132, -150, -152 at 800 hours of service time. Retire forward blades P/N 42R1002-137, -139 and aft blades P/N 42R1002-2, -4, -20, -40 at 1,350 hours of service time. The AD no longer applies if blades are modified to P/N 42R1002-42, -133, or -135.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Compliance required as indicated.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Boeing Defense & Space Group Model 44A and 44B helicopters, all serial numbers in the 44 series.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Rotor Blade Retirement
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_60-10-10.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 60-10-10 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; VERTOL Model 44 Series Helicopters Subject: Rotor Blade Retirement Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Boeing Defense & Space Group Model: 44A | 44B Product Type: Aircraft Product Subtype: Rotorcraft Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 60-10-10 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 60-10-10 SUBJECT HEADING: Airworthiness Directives; VERTOL Model 44 Series Helicopters ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 60-10-10 VERTOL: Amdt. 140 Part 507 Federal Register May 4, 1960. Applies to all 44 series helicopters. Compliance required as indicated. All forward rotor blades P/N 42R1002-9, -13, -15, -19, -90, -130, -131, -132, -150, and - 152 must be retired at 800 hours of service time. All forward rotor blades P/N 42R1002-137 AND -139 and all aft rotor blades P/N 42R1002-2, -4, -20, and -40 must be retired at 1,350 hours of service time. When the above blades are modified to 42R1002-42, -133, or -135 the provisions of this airworthiness directive no longer apply. This supersedes AD 59-25-02. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_60-10-10.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 60-10-10 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; VERTOL Model 44 Series Helicopters Subject: Rotor Blade Retirement Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Boeing Defense & Space Group Model: 44A | 44B 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: 60-10-10 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 60-10-10 SUBJECT HEADING: Airworthiness Directives; VERTOL Model 44 Series Helicopters ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 60-10-10 VERTOL: Amdt. 140 Part 507 Federal Register May 4, 1960. Applies to all 44 series helicopters. Compliance required as indicated. All forward rotor blades P/N 42R1002-9, -13, -15, -19, -90, -130, -131, -132, -150, and - 152 must be retired at 800 hours of service time. All forward rotor blades P/N 42R1002-137 AND -139 and all aft rotor blades P/N 42R1002-2, -4, -20, and -40 must be retired at 1,350 hours of service time. When the above blades are modified to 42R1002-42, -133, or -135 the provisions of this airworthiness directive no longer apply. This supersedes AD 59-25-02. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.
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