Airworthiness directives › 2004-04-08
AD 2004-04-08 Airworthiness Directives; Boeing Model 777-200 Series Airplanes
Models named: 777-200 series. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
Model 777-200 series airplanes, variable numbers WC381 through WC385 inclusive, WC446, and WC447; certificated in any category.
Compliance
Required as indicated, unless accomplished previously. To prevent the possibility of the airplane departing the runway during Category IIIB autoland operations due to autopilot disconnect in low visibility weather conditions, and to warn the flightcrew of the potential for autopilot disconnect or unscheduled speed brake retraction during any landing, which could result in a departure from the runway; accomplish the following: Revision of the Airplane Flight Manual (AFM) and Installation of a Placard (a) Within 1 day after the effective date of this AD, accomplish the actions specified in paragraphs (a)(1) and (a)(2) of this AD. (1) Revise the Limitations Section of the AFM to include the following statement (this may be accomplished by inserting a copy of this AD into the AFM): “CERTIFICATE LIMITATIONS CAT IIIB autoland prohibited. WARNING The PFCS may revert to direct mode during takeoff or landing. If reversion to direct mode occurs during autoland, the autopilot will disconnect. In this situation, the flightcrew must immediately take control of the airplane and provide manual rollout control. WARNING If the PFCS reverts to direct mode after the speed brakes have been deployed during landing rollout, the speed brakes will retract. If this occurs, the flightcrew must manually deploy the speed brakes to preserve stopping performance.” (2) Install a warning placard in the flight deck in the Captain's primary field of view that reads as follows: “CAT IIIB AUTOLAND PROHIBITED.” Optional Terminating Action (b) Remove all three existing PFCs, having hardware part number (P/N) S251W700-103 and software P/N 2769-PFC-900-00, and install serviceable PFCs having hardware P/N S251W700-102 and software P/N 2763-PFC-740-00; in accordance with TASKS 27-02-01-400-803, 27-02-01-000-801, and 27-02-01-400-802 of Chapter 27-02-01 of Boeing 777 Airplane Maintenance Manual, Document Number D633W101. After accomplishing the removal and installation, the AFM revision and placard required by paragraph (a) of this AD may be removed. Special Flight Permit (c) Special flight permits (14 CFR 21.197 and 21.199) are not allowed. Alternative Methods of Compliance (d) In accordance with 14 CFR 39.19, the Manager, Seattle Aircraft Certification Office, FAA, is authorized to approve alternative methods of compliance (AMOCs) for this AD. Effective Date (e) This amendment becomes effective on February 26, 2004. Issued in Renton, Washington, on February 20, 2004. Ali Bahrami, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 04-4258 Filed 2-25-04; 8:45 am] BILLING CODE 4910-13-P
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1