Aircraft Flight Manual - Non-Normal Procedures Section - Amendment
- Published
- Effective
- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of affected Boeing 747-400 series airplanes must revise the Non-Normal Procedures Section of the AFM within 90 days of the AD's effective date, September 15, 2022. Compliance can be achieved by inserting the AD text or incorporating the specified procedural changes. Stakeholders should coordinate with their principal inspectors or FAA representatives for any alternative methods of compliance if needed.
Summary
The Aircraft Flight Manual - Non-Normal Procedures Section - Amendment is a final rule airworthiness directive issued by the Federal Aviation Administration (FAA) affecting certain Boeing 747-400 series airplanes with a three air data computer configuration. It addresses an unsafe condition related to loss of power to the right-hand side pitot-static probe heaters and conflicting procedures in the flightcrew operations manual and quick reference handbook.
What changed
This new airworthiness directive requires revising the Non-Normal Procedures Section of the existing Airplane Flight Manual (AFM) to include specific procedures for pitot-static probe heater failure conditions. Operators may comply by inserting a copy of the AD or by incorporating the specified text changes directly into the AFM. The AD clarifies acceptable methods for compliance, including temporary revisions.
Why it matters
This amendment is critical for aviation professionals because conflicting procedures could lead to inaccurate air data being displayed, which may impair the flightcrew's ability to maintain safe flight and landing, especially during stall, overspeed, or hard landing conditions. Ensuring the AFM contains consistent and accurate procedures enhances flight safety and regulatory compliance for operators and maintenance organizations.
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