Applicability: | Model 737-600, -700, -800, and - 900 series aeroplanes identified in Boeing Alert Service Bulletin (ASB) 737-22A1164, dated 20 May 2004. |
Requirement: | If not previously accomplished, install and test an updated version of the operational program software of the enhanced digital flight control system (EDFCS) flight control computers (FCCs), in accordance with ASB 737-22A1164. |
| Note: FAA AD 2005-07-20 Amdt 39-14045 refers. |
Compliance: | Within 12 months after the effective date of this Directive. |
| This Airworthiness Directive becomes effective on 9 June 2005. |
Background: | This Directive requires installing and testing an updated version of the operational program software of the flight control computers. The United States Federal Aviation Administration has received a report of an aeroplane pitching up with rapidly decreasing indicated airspeed after the flight crew set a new altitude into the autopilot. This Directive is issued to prevent anomalous autopilot operation that produces a hazardous combination of aeroplane attitude and airspeed, which could result in loss of control of the aeroplane. I didn't find the right solution from the internet. For More You Can Check : Enterprise security video |
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