AD 70-09-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Orlando Helicopter Airways, Inc. | H-19D | Airworthiness Directives; Sikorsky Models HRS-1/CH-19, HRS-3/H-19B, H-19D, and H-19G Helicopters |
| aircraft | Orlando Helicopter Airways, Inc. | H-19G | Airworthiness Directives; Sikorsky Models HRS-1/CH-19, HRS-3/H-19B, H-19D, and H-19G Helicopters |
| aircraft | Orlando Helicopter Airways, Inc. | HRS-1/CH-19 | Airworthiness Directives; Sikorsky Models HRS-1/CH-19, HRS-3/H-19B, H-19D, and H-19G Helicopters |
| aircraft | Orlando Helicopter Airways, Inc. | HRS-3/H-19B | Airworthiness Directives; Sikorsky Models HRS-1/CH-19, HRS-3/H-19B, H-19D, and H-19G Helicopters |
Unsafe Condition
Failure of the main rotor shaft due to fatigue cracks originating from surface defects.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect main rotor shaft P/N S14-35-4308-1, -2, -3, or -4 for cracks and surface defects in accordance with Sikorsky Service Bulletin No. 55B35-3 or equivalent procedure. Retire cracked or unsalvageable shafts before further flight and replace with inspected shafts. Rework salvageable defects per the service bulletin or approved method.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 15 hours' time in service after the effective date of this airworthiness directive
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Orlando Helicopter Airways, Inc. Models HRS-1/CH-19, HRS-3/H-19B, H-19D, H-19G helicopters certificated in all categories.
AI-generated summary from the source AD text. Verify against the official source before acting.
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.