Air Conditioning - High Flight Deck or Cabin Temperatures - Airplane Flight Manual Revision
- Published
- Effective
- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Affected operators must revise the certificate limitations and operating procedures chapters of their existing AFM within 60 days of the AD's effective date, May 8, 2020. This can be done by inserting a copy of the AD or incorporating the specified figures into the AFM. Operators should ensure flightcrew are trained on the new procedures and verify that no conflicting supplemental type certificates affect compliance.
Summary
The Air Conditioning - High Flight Deck or Cabin Temperatures - Airplane Flight Manual Revision is a Federal Aviation Administration (FAA) Airworthiness Directive (AD 2020-04-15) that applies to all Boeing 757 and 767-200, -300, and -300F series airplanes. It addresses reports of excessively high temperatures in the flight deck or cabin. The directive mandates revisions to the Airplane Flight Manual (AFM) to include new certificate limitations and operating procedures for managing hot flight deck or cabin conditions.
What changed
This new AD requires operators to revise the certificate limitations and operating procedures chapters of the existing AFM to include specific procedures for handling high temperature conditions in the flight deck or cabin. The revisions make these procedures mandatory and provide flightcrew with guidance to mitigate the unsafe condition. The AD also removes an incorrect checklist step related to oxygen mask regulator settings.
Why it matters
This AD is critical for aviation professionals because excessively high temperatures in the flight deck or cabin can impair flightcrew performance and cause physiological distress to passengers and crew, potentially compromising safe flight and landing. Operators and maintenance teams must ensure compliance to maintain safety and regulatory adherence. The AFM revisions also provide clear, mandatory procedures that enhance operational safety during hot temperature events.
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