Flight Crew Operations Manual Bulletin
for
The Boeing Company Seattle, Washington 98124-2207
737
Number: SHZ-28 Date: August 15, 2002 Document Effectivity:
Subject: FMC MAP Display Blanking with FMC Update U10.3, U10.4 and U10.4A software
Reason: This bulletin notifies flight crews that FMC MAP display blanking has been experienced on 737 airplanes with FMC Update U10.3, U10.4 and U10.4A software installed.
Information in this Flight Crew Operations Manual (FCOM) bulletin is recommended by The Boeing Company, but may not be FAA approved at the time of writing. In the event of conflict with the FAA approved Airplane Flight Manual (AFM), the AFM shall supersede. The Boeing Company regards the information or procedures described herein as having a direct or indirect bearing on the safe operation of this model airplane.
THE FOLLOWING PROCEDURE AND/OR INFORMATION IS EFFECTIVE UPON RECEIPT
Background Information
Since January 2002, several operators with FMC U10.3, U10.4 and U10.4A software installed on their 737 airplanes have reported blanking of the FMC MAP display during approach at a limited number of airports. These MAP blanking events appear to occur without pilot action and are unrecoverable by manual switching.
There have also been reports of MAP RANGE DISAGREE and MAP FAIL anomalies induced when mode/range changes are made on the EFIS control panel during approach. These failures affect one or both MAP displays. The majority of these events have been recoverable.
The FMC U10.5 software upgrade scheduled for third quarter/early fourth quarter 2002 is expected to correct both of these anomalies.
Flight Crew Operations Manual Bulletin No. SHZ-28, dated August 15, 2002 (continued)
Operating Instructions
Minimize MAP mode/range changes during approach with FMC Update U10.3, U10.4 or U10.4A software installed. If unrecoverable MAP display blanking occurs, use the other pilot’s MAP display and/or conventional means of navigation and land as soon as practicable. After landing, have maintenance recycle power to the FMC.
Administrative Information
Insert this bulletin behind the FCOM Bulletin Record Page in Volume 1 of your FCOM. Amend the FCOM Bulletin Record Page to show Bulletin SHZ-28 "IN EFFECT" (IE).
This bulletin will be cancelled after Boeing is notified that all affected airplanes in your fleet have been updated to FMC Update U10.5 software.
Please send all correspondence regarding FCOM bulletin status to one of the
following addresses:
Mailing Address: Manager 737, Flight Technical Integration & Data Boeing Commercial Airplane Group P. O. Box 3707 MS 20-89 Seattle, WA 98124-2207 USA
Fax Number: Telex: SITA: E-MAIL: (206) 662-7812 329430 Station 627 LKEBO7X FTID@Boeing.com
Flight Crew Operations Manual Bulletin
for
The Boeing Company Seattle, Washington 98124-2207
737
Number: SHZ-29 R3 Date: July 07, 2003 Document Effectivity:
Subject: AD 2002-19-52 and AD 2002-24-51, Center Tank Fuel Pumps
Reason: This is a reissue of SHZ-29 R2, issued on November 25, 2002, that informed flight crews of the potential for fuel pump damage that could create a potential ignition source. This reissue provides procedures approved by the FAA per FAA Approval Letters 140S-02-376, 140S-02-363 and 140S-03-189 as an Alternative Method of Compliance.
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