AD 65-08-02
final rule
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Orlando Helicopter Airways, Inc. | Sikorsky Aircraft Corporation | HRS-1/CH-19 | Airworthiness Directives; Sikorsky Models S-55, S-62, and S-61 Series Helicopters |
| aircraft | Orlando Helicopter Airways, Inc. | Sikorsky Aircraft Corporation | HRS-3/H-19B | Airworthiness Directives; Sikorsky Models S-55, S-62, and S-61 Series Helicopters |
| aircraft | Orlando Helicopter Airways, Inc. | Sikorsky Aircraft Corporation | S-55 | Airworthiness Directives; Sikorsky Models S-55, S-62, and S-61 Series Helicopters |
| aircraft | Orlando Helicopter Airways, Inc. | Sikorsky Aircraft Corporation | S-55B | Airworthiness Directives; Sikorsky Models S-55, S-62, and S-61 Series Helicopters |
| aircraft | Orlando Helicopter Airways, Inc. | Sikorsky Aircraft Corporation | S-55C | Airworthiness Directives; Sikorsky Models S-55, S-62, and S-61 Series Helicopters |
| aircraft | Orlando Helicopter Airways, Inc. | Sikorsky Aircraft Corporation | S-61A | Airworthiness Directives; Sikorsky Models S-55, S-62, and S-61 Series Helicopters |
| aircraft | Orlando Helicopter Airways, Inc. | Sikorsky Aircraft Corporation | S-61D | Airworthiness Directives; Sikorsky Models S-55, S-62, and S-61 Series Helicopters |
| aircraft | Orlando Helicopter Airways, Inc. | Sikorsky Aircraft Corporation | S-61E | Airworthiness Directives; Sikorsky Models S-55, S-62, and S-61 Series Helicopters |
| aircraft | Orlando Helicopter Airways, Inc. | Sikorsky Aircraft Corporation | S-61L | Airworthiness Directives; Sikorsky Models S-55, S-62, and S-61 Series Helicopters |
| aircraft | Orlando Helicopter Airways, Inc. | Sikorsky Aircraft Corporation | S-61N | Airworthiness Directives; Sikorsky Models S-55, S-62, and S-61 Series Helicopters |
| aircraft | Orlando Helicopter Airways, Inc. | Sikorsky Aircraft Corporation | S-61NM | Airworthiness Directives; Sikorsky Models S-55, S-62, and S-61 Series Helicopters |
| aircraft | Orlando Helicopter Airways, Inc. | Sikorsky Aircraft Corporation | S-61R | Airworthiness Directives; Sikorsky Models S-55, S-62, and S-61 Series Helicopters |
| aircraft | Orlando Helicopter Airways, Inc. | Sikorsky Aircraft Corporation | S-61V | Airworthiness Directives; Sikorsky Models S-55, S-62, and S-61 Series Helicopters |
| aircraft | Orlando Helicopter Airways, Inc. | Sikorsky Aircraft Corporation | S62A | Airworthiness Directives; Sikorsky Models S-55, S-62, and S-61 Series Helicopters |
Unsafe Condition
Pitting in main rotor blade spars has resulted in fatigue cracks.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Conduct visual inspections for cracks and X-ray inspections for pitting in main rotor blade spars per Sikorsky Service Bulletins, replace blades with cracks or pitting before further flight.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 10 hours' time in service after the effective date and at intervals thereafter within 10 hours' time in service from the last inspection until (b) is accomplished. For (b), within 25 hours' time in service after the effective date.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Sikorsky Models S-55, S-62, and S-61 Series Helicopters with specific main rotor blade serial ranges: S14-10-2100 (55MH15340-55MH19858), S14-10-2201, and S6115-20501 (61M101-61M1429).
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Main Rotor Blades
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_65-08-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 65-08-02 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Sikorsky Models S-55, S-62, and S-61 Series Helicopters Subject: Main Rotor Blades Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 04/09/1965 Make: Orlando Helicopter Airways, Inc. | Sikorsky Aircraft Corporation Model: HRS-1/CH-19 | HRS-3/H-19B | S-55 | S-55B | S-55C | S-61A | S-61D | S-61E | S-61L | S-61N | S-61NM | ...Show more 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: 65-08-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-54 AD NUMBER: 65-08-02 SUBJECT HEADING: Airworthiness Directives; Sikorsky Models S-55, S-62, and S-61 Series Helicopters ACTION: SUMMARY: DATES: Effective April 9, 1965. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 65-08-02 SIKORSKY: Amdt. 39-54 Part 39 Federal Register April 9, 1965. Applies to Models S-55, S-62, and S-61 Series Helicopters. Compliance required as indicated. Pitting in main rotor blade spars has resulted in fatigue cracks. To detect possible pitting and cracking, accomplish the following: (a) Within 10 hours' time in service after the effective date of this AD and at intervals thereafter within 10 hours' time in service from the last inspection, until (b) has been accomplished, conduct a visual inspection for cracks of the spars of S14-10-2100 Series main rotor blades, Serial Numbers 55MH15340 through 55MH19858, in accordance with the inspection procedures specified in Sikorsky Service Bulletin 55B10-4 or 62B10-3. Replace all main rotor blades found with cracks in the spar before further flight. (b) Unless already accomplished, within 25 hours' time in service after the effective date of this AD accomplish the following: (1) On S-55 and S-62 helicopters, conduct an X-ray inspection of the spar of S14-10-2100 Series and S14-10-2201 Series main rotor blades, Serial Numbers 55MH15340 through 55MH19858, for pitting in accordance with the inspection procedures specified in Sikorsky Service Bulletin 55B10-4 or 62B10-3. (2) On S-61 helicopters, conduct an X-ray inspection of the spar of S6115- 20501 Series main rotor blades, Serial Numbers 61M101 through 61M1429, for pitting in accordance with the inspection procedures specified in Sikorsky Service Bulletin 61B15-3. (3) Replace all blades with pitting in the spar, before further flight. This directive effective April 9, 1965. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_65-08-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 65-08-02 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Sikorsky Models S-55, S-62, and S-61 Series Helicopters Subject: Main Rotor Blades Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 04/09/1965 Make: Orlando Helicopter Airways, Inc. | Sikorsky Aircraft Corporation Model: HRS-1/CH-19 | HRS-3/H-19B | S-55 | S-55B | S-55C | S-61A | S-61D | S-61E | S-61L | S-61N | S-61NM | ...Show more 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: 65-08-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-54 AD NUMBER: 65-08-02 SUBJECT HEADING: Airworthiness Directives; Sikorsky Models S-55, S-62, and S-61 Series Helicopters ACTION: SUMMARY: DATES: Effective April 9, 1965. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 65-08-02 SIKORSKY: Amdt. 39-54 Part 39 Federal Register April 9, 1965. Applies to Models S-55, S-62, and S-61 Series Helicopters. Compliance required as indicated. Pitting in main rotor blade spars has resulted in fatigue cracks. To detect possible pitting and cracking, accomplish the following: (a) Within 10 hours' time in service after the effective date of this AD and at intervals thereafter within 10 hours' time in service from the last inspection, until (b) has been accomplished, conduct a visual inspection for cracks of the spars of S14-10-2100 Series main rotor blades, Serial Numbers 55MH15340 through 55MH19858, in accordance with the inspection procedures specified in Sikorsky Service Bulletin 55B10-4 or 62B10-3. Replace all main rotor blades found with cracks in the spar before further flight. (b) Unless already accomplished, within 25 hours' time in service after the effective date of this AD accomplish the following: (1) On S-55 and S-62 helicopters, conduct an X-ray inspection of the spar of S14-10-2100 Series and S14-10-2201 Series main rotor blades, Serial Numbers 55MH15340 through 55MH19858, for pitting in accordance with the inspection procedures specified in Sikorsky Service Bulletin 55B10-4 or 62B10-3. (2) On S-61 helicopters, conduct an X-ray inspection of the spar of S6115- 20501 Series main rotor blades, Serial Numbers 61M101 through 61M1429, for pitting in accordance with the inspection procedures specified in Sikorsky Service Bulletin 61B15-3. (3) Replace all blades with pitting in the spar, before further flight. This directive effective April 9, 1965. 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.