Airworthiness Directive
AD 97-11-04: Bell Helicopter Textron, Inc. Model 412 and 412EP Helicopters
Airworthiness Directives; Bell Helicopter Textron, Inc. Model 412 and 412EP Helicopters
- Published
- May 20, 1997
- 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 RSAF
- Bell 412EP
- Bell 412EP
- Bell 412EP
- Only with: Main rotor mast P/N 412-040-101-105, -109, -117, -121, -125, -127, or -129 and main rotor spline plate P/N 412-010-167-105 or 412-010-177-101, -105, -109, -113, or -117 installed.
- Only with: Main rotor mast P/N 412-040-101-105, -109, -117, -121, -125, -127, or -129 and main rotor spline plate P/N 412-010-167-105 or 412-010-177-101, -105, -109, -113, or -117 installed.
Applicability
From the AD textModel 412 and Model 412EP helicopters with main rotor mast (mast), part number (P/N) 412-040-101-105, -109, -117, -121, -125, -127, or -129, and main rotor spline plate (spline plate) P/N 412-010-167-105 or P/N 412-010-177-101, -105, -109, -113, or -117, installed, certificated in any category.
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