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时间:2011-03-14 17:01来源:蓝天飞行翻译 作者:admin
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The first three (3) events occurred at near idle engine power during approach. For two (2) of the three (3) events, flight crew action was necessary to shutdown the effected engine.
Two (2) subsequent events of uncommanded fuel flow accelerations occurred on an airplane which had EEC Software version 7BI installed. These events occurred on the ground, one while parking at the gate and one while taxiing. It should be noted this software was designed to minimize but not eliminate repeat occurrences of uncommanded fuel flow acceleration.
Flight Crew Operations Manual Bulletin No. SHZ-7 R1, dated December 17, 1999 (continued)
Alert Service Bulletin CFM56-7B S/B 73-A026, dated January 20, 1999, introduced EEC software version 7.B.J which provided a significant improvement in the Fault Accommodation Logic. There have been no additional uncommanded engine acceleration events since the release of software version 7.B.J. This Alert Service Bulletin and this Operations Manual Bulletin apply to airplanes with manufacturer’s line numbers 1 through 193. Line number 194 and on received the software fix during production.
 airplanes YA721 and YA722 are therefore affected. Airplanes with Alert Service Bulletin CFM56-7B S/B 73-A026 installed are not affected.
In addition, a review of the current 737 non-normal procedures has been conducted and the results include a new procedure for an engine limit, surge, stall condition. This change aligns the 737 non-normal procedure with other Boeing models’ non-normal procedure.
Operating Instructions
If one or more of the following occurs, perform the Engine Limit/Surge/Stall procedure:
.
engine RPM or EGT indications are abnormal, approaching or exceeding limits

.
no response to thrust lever movement

.
abnormal engine noises.


Note: Flight crews should remain vigilant for uncommanded engine acceleration during all phases of flight.
Administrative Information
This bulletin replaces bulletin SHZ-7, dated September 22, 1998. Discard bulletin SHZ-7. Revise the Bulletin Record page to show SHZ-7 as “CANCELLED” (CANC).
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-7 R1 "IN EFFECT" (IE)
This bulletin will be cancelled after Boeing is notified that all affected airplanes in your fleet have been modified by Alert Service Bulletin CFM56-7B S/B 73-A026. If you do not plan to modify all your airplanes and would like to have the contents of this bulletin incorporated in your Operations Manual, please advise Boeing accordingly.
Flight Crew Operations Manual Bulletin No. SHZ-7 R1, dated December 17, 1999 (continued)
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 No. SHZ-7 R1, dated December 17, 1999 (continued)
Intentionally
Blank


Flight Crew Operations Manual Bulletin
for
 

The Boeing Company Seattle, Washington 98124-2207

737
Number: SHZ-8 R1 Date: March 26, 1999 Document Effectivity: 
Subject:  Collins ILS/GPS Multi-Mode Receiver (MMR) Failure 
Reason:   This is a reissue of SHZ-8, dated September 22, 1998, which informed flight crews of the lack of failure indications associated with certain internal Multi-Mode Receiver (MMR) failures. The purpose of this reissue is to add Service Bulletin information. 

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
Flight testing has shown that certain internal MMR failures can occur which do not display fault indications or failure flags. In this event, the associated ILS and GPS will not function. ILS frequency, localizer deviation and glideslope deviation indicators will not be displayed. Normal GPS functions and updates will not be available and the altitude range arc will move erratically if displayed.
Collins GLU-920 Service Bulletins (8 and 10 through 15) provide information on the upgrade that fixes the anomaly.
Operating Instructions
 
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