Airworthiness Directive
AD 99-23-23: Bell Helicopter Textron, Inc. Model 412, 412EP and 412CF Helicopters
Airworthiness Directives; Bell Helicopter Textron, Inc. Model 412, 412EP and 412CF Helicopters
- Effective
- Dec 1, 1999
- Published
- Nov 16, 1999
- Registered aircraft
- 88
Models this AD may apply to
AI-extracted — verify against originalMatched from the AD's applicability section. Applicability must be confirmed by a mechanic against the aircraft's records.
Aircraft
- Bell 412
- Bell 412
- Bell 412 CF
- Bell 412 RSAF
- Bell 412EP
- Bell 412EP
- Bell 412EP
- Certain serial numbers: 412 33001–33213; 412 34001–34036; 412 36001–36204; 412EP 33001–33213; 412EP 34001–34036; 412EP 36001–36204; …. Only with: Main rotor yoke assembly P/N 412-010-101-123 or 412-010-101-127 installed.
- Only with: Main rotor yoke assembly P/N 412-010-101-123 or 412-010-101-127 installed.
Applicability
From the AD textModel 412 or 412EP helicopters, serial numbers (S/N) 33001 through 33213, 34001 through 34036, and 36001 through 36204, or Model 412CF helicopter, S/N 46400 through 46499, with main rotor yoke assembly (yoke), part number 412-010-101-123 or -127, installed, certificated in any category.
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