Boeing 737 - 600/700/800/900. Operations Manual (1997 year) - page 3
Preface -
List of Effective Pages
Boeing 737 Operations Manual
Page
Date
Page
Date
Supplementary Procedures (tab)
Supplementary Procedures (cont)
* SP.TOC.0.1-8
SP.12.2-4
SP.05.1-2
* SP.16.1
SP.1.1-5
SP.16.2-3
SP.1.6
SP.16.4-5
SP.2.1-8
* SP.16.6-16
SP.3.1-2
Performance - Dispatch (tab)
SP.4.1-3
* PD.TOC.0.1-4
* SP.4.4-7
PD.10.1-8
SP.4.8
PD.11.1-10
SP.5.1-2
PD.12.1-4
* SP.6.1
PD.13.1-2
SP.6.2
October 15, 2001
* PD.13.3
SP.6.3-4
PD.13.4
* SP.7.1
* PD.13.5
SP.7.2-4
PD.13.6
SP.7.5
PD.20.1-2
SP.7.6
* PD.20.3-4
SP.8.1-2
PD.20.5-8
* SP.9.1-4
PD.21.1
SP.10.1
* PD.21.2-3
SP.10.2
October 15, 2001
PD.21.4-10
SP.10.3-4
PD.22.1-4
SP.10.5-7
PD.23.1-2
* SP.10.8
* PD.23.3
SP.10.9-10
PD.23.4-6
* SP.11.1-15
PD.30.1-8
SP.11.16-22
PD.31.1-10
SP.12.1
PD.32.1-4
PD.33.1-2
* PD.33.3
* = Revised, Added, or Deleted
0.5.2
Preface -
List of Effective Pages
Boeing 737 Operations Manual
Page
Date
Performance - Dispatch (cont)
PD.33.4-6
* PD.40.1-12
* PD.41.1-10
* PD.42.1-4
* PD.43.1-6
(blank tab)
* = Revised, Added, or Deleted
0.5.3
Preface -
List of Effective Pages
Boeing 737 Operations Manual
Page
Date
Page
Date
Volume 2
3 Anti-Ice, Rain (tab)
* 3.TOC.0.1-2
1 Airplane General, Emergency
Equipment, Doors, Windows (tab)
3.10.1-8
1.TOC.0.1-4
3.20.1
1.10.1-4
3.20.2
1.20.1
3.20.3-4
1.20.2
* 3.20.5-6
1.20.3-20
3.20.7
October 15, 2001
1.30.1-4
3.20.8
1.30.5
4 Automatic Flight (tab)
1.30.6-7
* 4.TOC.0.1-2
1.30.8-22
4.10.1-3
1.40.1-5
4.10.4
1.40.6-40
4.10.5
2 Air Systems (tab)
* 4.10.6-7
2.TOC.0.1-4
4.10.8
2.10.1
4.10.9-11
2.10.2-4
* 4.10.12-13
2.10.5-6
4.10.14-18
2.10.7
October 15, 2001
4.10.19-20
2.10.8-16
4.10.21
2.20.1-2
4.10.22-23
2.20.3-6
4.10.24-26
2.30.1-2
4.20.1
2.30.3-6
* 4.20.2-3
2.31.1-2
4.20.4
2.31.3-4
* 4.20.5-28
2.31.5-6
2.31.7-8
2.40.1-2
2.40.3-8
* = Revised, Added, or Deleted
0.5.4
Preface -
List of Effective Pages
Boeing 737 Operations Manual
Page
Date
Page
Date
5 Communications (tab)
7 Engines, APU (tab)
5.TOC.0.1-2
* 7.TOC.0.1-4
5.10.1-3
7.10.1-14
5.10.4
7.11.1-16
5.10.5
7.15.1-8
5.10.6-9
7.20.1-3
5.10.10-13
* 7.20.4-16
5.10.14
7.30.1-4
5.20.1-4
8 Fire Protection (tab)
5.20.5
* 8.TOC.0.1-2
5.20.6
8.10.1-5
6 Electrical (tab)
8.10.6
6.TOC.0.1-2
* 8.10.7
6.10.1-2
8.10.8-9
6.10.3
8.10.10
6.10.4-10
8.20.1-8
6.20.1
9 Flight Controls (tab)
6.20.2-5
* 9.TOC.0.1-2
6.20.6
* 9.10.1-16
6.20.7
9.20.1
6.20.8-9
9.20.2
6.20.10
9.20.3
October 15, 2001
6.20.11
9.20.4-11
6.20.12
* 9.20.12-24
6.20.13-15
10 Flight Instruments, Displays (tab)
6.20.16-17
* 10.TOC.0.1-10
6.20.18-19
* 10.10.1
6.20.20
October 15, 2001
10.10.2-5
*
6.20.21-22
* 10.10.6-8
6.20.23-24
10.10.9-13
* 10.10.14-52
* = Revised, Added, or Deleted
0.5.5
Preface -
List of Effective Pages
Boeing 737 Operations Manual
Page
Date
Page
Date
10 Flight Instruments, Displays (cont)
10 Flight Instruments, Displays (cont)
10.11.1
September
30,
2002
10.30.1
June
06,
2001
10.11.2-5
March
15,
2002
10.30.2
October
15, 2001
10.11.6-7
September
30,
2002
10.30.3-4
June
06,
2001
10.11.8-9
March
15,
2002
10.31.1-5
March
15,
2002
10.11.10
September
30,
2002
10.31.6
August
30,
2000
10.11.11-13
March
15,
2002
10.40.1-4
August
30,
2000
10.11.14-52
September
30,
2002
10.40.5-6
October
15, 2001
10.12.1-12
August
30,
2000
10.40.7-8
August
30,
2000
10.15.1-4
August
30,
2000
10.40.9
October
15, 2001
10.15.5
March
15,
2002
10.40.10-11
August
30,
2000
10.15.6
August
30,
2000
10.40.12
October
15, 2001
10.15.7-9
March
15,
2002
10.40.13-17
August
30,
2000
10.15.10-20
September
30,
2002
10.40.18
June
06,
2001
10.16.1
March
15,
2002
10.40.19-20
August
30,
2000
10.16.2-4
August
30,
2000
10.41.1-6
August
30,
2000
10.16.5-9
March
15,
2002
10.41.7
October
15, 2001
10.16.10-20
September
30,
2002
* 10.41.8
September
30,
2002
10.17.1-6
August
30,
2000
10.41.9
October
15, 2001
10.20.1
August
30,
2000
10.41.10
August
30,
2000
10.20.2
March
15,
2002
* 10.41.11-18
September
30,
2002
10.20.3-12
August
30,
2000
10.42.1-2
October
15, 2001
10.20.13-15
September
30,
2002
10.42.3-10
August
30,
2000
10.20.16
August
30,
2000
10.42.11
October
15, 2001
10.21.1
August
30,
2000
10.42.12-18
August
30,
2000
10.21.2
March
15,
2002
11 Flight Management, Navigation (tab)
10.21.3-12
* 11.TOC.0.1-8
10.21.13-16
11.10.1
10.22.1
11.10.2-8
October 15, 2001
10.22.2-3
October 15, 2001
* 11.10.9-30
10.22.4-6
11.20.1-7
October 15, 2001
* = Revised, Added, or Deleted
0.5.6
Preface -
List of Effective Pages
Boeing 737 Operations Manual
Page
Date
Page
Date
11 Flight Management, Navigation
11 Flight Management, Navigation
(cont)
(cont)
11.20.8-9
* 11.40.67-72
Deleted
11.20.10
11.41.1
11.20.11
11.41.2-6
October 15, 2001
11.20.12
October 15, 2001
* 11.41.7
11.30.1
11.41.8-12
October 15, 2001
11.30.2-4
October 15, 2001
* 11.41.13-15
11.31.1-2
11.41.16-20
October 15, 2001
11.31.3-4
* 11.41.21-38
11.31.5-15
11.42.1-2
11.31.16-17
11.42.3
October 15, 2001
11.31.18
* 11.42.4
11.31.19-23
October 15, 2001
11.42.5-6
October 15, 2001
11.31.24
11.42.7
11.31.25-40
11.42.8-12
October 15, 2001
11.31.41-42
Deleted
* 11.42.13-56
11.32.1
* 11.42.57-58
Deleted
11.32.2
October 15, 2001
11.43.1-3
October 15, 2001
11.32.3-8
* 11.43.4-5
11.33.1-3
11.43.6-7
October 15, 2001
11.33.4
October 15, 2001
* 11.43.8-9
11.33.5-6
11.43.10
October 15, 2001
11.33.7-8
* 11.43.11-12
11.33.9-11
11.43.13-19
October 15, 2001
11.33.12
October 15, 2001
* 11.43.20-24
11.40.1-3
11.43.25-31
October 15, 2001
11.40.4-6
* 11.43.32-40
11.40.7-8
* 11.43.41-44
Deleted
11.40.9-13
11.60.1
*
11.40.14-66
* 11.60.2-22
* = Revised, Added, or Deleted
0.5.7
Preface -
List of Effective Pages
Boeing 737 Operations Manual
Page
Date
Page
Date
12 Fuel (tab)
15 Warning Systems (tab)
12.TOC.0.1-2
* 15.TOC.0.1-2
12.10.1-2
15.10.1-3
12.10.3
* 15.10.4-5
12.10.4
October 15, 2001
15.10.6-9
12.10.5-6
* 15.10.10-14
12.10.7-8
15.20.1
12.10.9-10
15.20.2
12.20.1-3
* 15.20.3
12.20.4
15.20.4
13 Hydraulics (tab)
15.20.5-6
13.TOC.0.1-2
15.20.7
October 15, 2001
13.10.1-3
15.20.8-12
13.10.4-6
15.20.13
October 15, 2001
13.20.1-2
15.20.14-20
13.20.3
15.20.21-24
13.20.4
(blank tab)
13.20.5-8
14 Landing Gear (tab)
14.TOC.0.1-2
14.10.1-7
14.10.8
14.20.1-2
14.20.3-4
October 15, 2001
14.20.5
14.20.6
14.20.7
14.20.8-10
* = Revised, Added, or Deleted
0.5.8
Preface -
List of Effective Pages
Boeing 737 Operations Manual
Page
Date
Page
Date
Quick Reference Handbook
Performance - Inflight (cont)
* PI.16.11
Normal Checklists
PI.16.12
* NC.1
PI.20.1-10
NC.2
* PI.20.11-12
NC.3
PI.20.13-19
* NC.4
* PI.20.20-21
Checklist Introduction (tab)
PI.20.22-27
* CI.TOC.0.1-2
* PI.20.28-29
CI.1.1-2
PI.20.30-34
* CI.2.1
PI.21.1-8
CI.2.2-3
PI.22.1-8
* CI.2.4
PI.23.1-12
Performance - Inflight (tab)
PI.24.1-6
* PI.TOC.0.1-10
PI.25.1-4
* PI.10.1-2
PI.26.1-10
PI.10.3-6
* PI.26.11
* PI.10.7-11
PI.26.12
PI.10.12-14
PI.30.1-6
* PI.10.15-19
* PI.30.7-30
PI.10.20-22
PI.31.1-8
* PI.10.23-24
PI.32.1-8
PI.10.25-30
PI.33.1-12
PI.11.1-8
* PI.34.1
* PI.12.1
PI.34.2
PI.12.2-6
PI.35.1-4
* PI.12.7
PI.36.1-4
PI.12.8
PI.37.1-10
PI.13.1-10
* PI.37.11-12
PI.14.1-4
* PI.40.1-32
PI.15.1-4
* PI.41.1-8
PI.16.1-10
* = Revised, Added, or Deleted
0.5.9
Preface -
List of Effective Pages
Boeing 737 Operations Manual
Page
Date
Page
Date
Performance - Inflight (cont)
2 Air Systems (tab)
* PI.42.1-8
* NNC.TOC.2.1-2
* PI.43.1-12
NNC.2.1
* PI.44.1-2
NNC.2.2-3
* PI.45.1-6
* NNC.2.4
* PI.46.1-6
NNC.2.5-6
* PI.47.1-12
NNC.2.7-12
Non-Normal Checklists (tab)
NNC.2.13-14
3 Anti-Ice, Rain (tab)
0 Unannunciated Checklists (tab)
* NNC.TOC.3.1-2
* NNC.TOC.0.1-2
NNC.3.1
NNC.0.1
NNC.3.2-4
NNC.0.2-6
NNC.0.7
4 Automatic Flight (tab)
NNC.0.8
NNC.TOC.4.1-2
NNC.0.9-10
October 15, 2001
NNC.4.1-2
NNC.0.11-12
5 Communications, Datalink (tab)
* NNC.0.13-38
NNC.TOC.5.1-2
1 Airplane General, Emergency
NNC.5.1-2
Equipment, Doors, Windows (tab)
6 Electrical (tab)
* NNC.TOC.1.1-2
* NNC.TOC.6.1-2
NNC.1.1
NNC.6.1-2
* NNC.1.2
* NNC.6.3-4
NNC.1.3
NNC.6.5
NNC.1.4
October 15, 2001
* NNC.6.6
* NNC.1.5
7 Engines, APU (tab)
NNC.1.6
* NNC.TOC.7.1-2
NNC.7.1-2
NNC.7.3
NNC.7.4-21
* NNC.7.22
NNC.7.23-28
* = Revised, Added, or Deleted
0.5.10
Preface -
List of Effective Pages
Boeing 737 Operations Manual
Page
Date
Page
Date
8 Fire Protection (tab)
13 Hydraulics (tab)
* NNC.TOC.8.1-2
* NNC.TOC.13.1-2
NNC.8.1-4
NNC.13.1
* NNC.8.5-7
NNC.13.2
NNC.8.8
NNC.13.3
NNC.8.9
* NNC.13.4
* NNC.8.10
NNC.13.5
NNC.8.11-12
* NNC.13.6-7
9 Flight Controls (tab)
NNC.13.8-10
* NNC.TOC.9.1-2
14 Landing Gear (tab)
NNC.9.1
* NNC.TOC.14.1-2
* NNC.9.2-26
NNC.14.1-2
NNC.14.3-4
10 Flight Instruments, Displays (tab)
NNC.14.5
* NNC.TOC.10.1-2
NNC.14.6-9
NNC.10.1
NNC.14.10
NNC.10.2-4
11 Flight Management, Navigation (tab)
15 Warning Systems, Tailstrike (tab)
* NNC.TOC.11.1-2
* NNC.TOC.15.1-2
NNC.11.1-2
NNC.15.1-2
* NNC.11.3
Non-Normal Maneuvers (tab)
NNC.11.4
* NNM.TOC.0.1-2
NNC.11.5
* NNM.1.1-12
NNC.11.6
* NNM.1.13-14
Deleted
12 Fuel (tab)
NNM.2.1-2
* NNC.TOC.12.1-2
NNM.2.3-5
NNC.12.1
May 10, 2001
* NNM.2.6
NNC.12.2-6
Index (tab)
* NNC.Index.1-6
(blank tab)
* = Revised, Added, or Deleted
0.5.11
Preface -
List of Effective Pages
Boeing 737 Operations Manual
Intentionally
Blank
0.5.12
Boeing 737 Operations Manual
Preface
Chapter 0
Bulletin Record
Section 6
General
The Boeing Company issues operations manual bulletins as required. Bulletins
transmit temporary information which must be issued before the next formal
revision to the operations manual or information of interest to all operators.
Bulletins are numbered sequentially for each operator. Each new bulletin is
recorded in this record when received and filed as instructed. A bulletin may not
apply to all airplane models. Each bulletin specifically identifies the airplane
effectivity. When appropriate, the next formal operations manual revision will
include an updated bulletin record page.
Temporary information is normally incorporated into the manual at the next
formal revision. When the condition remains temporary after a bulletin
incorporation, the temporary paragraphs are identified by a heading referencing
the originating bulletin. When the temporary condition no longer exists, the
bulletin is cancelled and the original manual content is restored.
Bulletin status is defined as follows:
• In Effect (IE) - the bulletin contains pertinent information not otherwise
covered in the operations manual. The bulletin is recorded in this record
and filed as instructed. The bulletin is active and should be retained in the
manual.
• Incorporated (INC) - the bulletin material is incorporated into the manual
pages. The bulletin remains in effect.
• Cancelled (CANC) - the bulletin is no longer in effect. File the bulletin as
instructed and remove it from this section of the manual. The record page
should be modified to indicate the CANC bulletin status.
The record below should be accomplished by the person revising the material.
Number
Subject
Ref.
Date
Status
No.
(CS3-)
TBC-3R1
Standby Power Test
2686
Nov 8, 1999
INC
TBC-5R1
Window Overheat
2691
Nov 15, 2000
IE
TBC-6
Possible Autopilot Low
2712
Jan 29, 1999
IE
Frequency Pitch Oscillation
During Flap Extension While in
a Turn
TBC-7
Engine Overheat/Fire and APU
2702
Jan 29, 1999
IE
Fire Detection
0.6.1
Preface -
Bulletin Record
Boeing 737 Operations Manual
Number
Subject
Ref.
Date
Status
No.
(CS3-)
TBC-8R1
Uncommanded Engine
2723
Dec 17, 1999
IE
Acceleration Due to an Engine
Fuel Control Fault
TBC-9
APU DC Fuel Pump Operational
2728
Jan 29, 1999
INC
Anomaly
TBC-10R1
Landing Altitude Display
2736
Sep 10, 1999
IE
Anomaly
TBC-11R1
Collins ILS/GPS Multi-Mode
2737
Mar 26, 1999
IE
Receiver (MMR) Failure
TBC-12R1
Inadvertent RTO Autobraking
2752
Sep 6, 1999
IE
During Landing
TBC-13R1
Nuisance PWS Fail
2765
Apr 23, 1999
IE
Annunciation
TBC-14
AFDS Performance Degradation
2776
Jan 29, 1999
IE
with Radio Altimeter Failure
TBC-15
FMC Software Restart Anomaly
2777
Jan 29, 1999
IE
TBC-16R1
Improper Autothrottle Thrust
2796
Apr 16, 1999
IE
Setting During Go-Around After
Assumed Temperature Derated
Takeoff
TBC-17R1
Control Wheel
2791
Nov 6, 2000
IE
Microphone/Interphone Switch
Anomaly
TBC-18R2
Nuisance Zone Temp Light
2807
Nov 1, 2001
IE
Illuminations on 737-800
Airplanes
TBC-19
737-600/-700/-800 Elevator Tab
2819
Jun 10, 1999
IE
Operational Limitations
TBC-20
VHF Radio Use for ATC
2893
Apr 17, 2000
INC
Ground Operations
TBC-21
GPWS Minimums Voice Callout
2898
Apr 28, 2000
IE
Anomaly
TBC-22
TCAS Display Anomaly
2897
May 8, 2000
IE
TBC-23
Look-Ahead Terrain Alerting
2864
May 17, 2000
IE
Display Anomalies
0.6.2
Preface -
Bulletin Record
Boeing 737 Operations Manual
Number
Subject
Ref.
Date
Status
No.
(CS3-)
TBC-24
GPWS 2500 Foot Voice Callout
2900
May 17, 2000
IE
Anomaly
TBC-27
PSEU Fault Indications
3002
Mar 17, 2001
INC
TBC-29
Emergency Airworthiness
3055
Jun 19, 2001
CANC
Directive 2001-12-51
TBC-29R1
Emergency Airworthiness
3145
May 1, 2002
INC
Directive 2002-08-52
TBC-30
Inflight Start EGT Display
3075
Sep 16, 2001
INC
TBC-31
Deployment of Speedbrake In
3069
Jan 1, 2002
CANC
Flight
TBC-32
Deicing/Anti-icing Procedures
3126
Feb 15, 2002
IE
TBC-33
Airworthiness Directive
3133
May 15, 2002
INC
2002-08-20
TBC-34
FMC MAP Display
3171
Aug 2, 2002
INC
Blanking with FMC Update
U10.3, U10.4 and U10.4A
software
0.6.3
Preface -
Bulletin Record
Boeing 737 Operations Manual
Intentionally
Blank
0.6.4
Sect Name
Section Name
Operations Manual Bulletin
for
The Boeing Company
The Boeing Company
Seattle, Washington 98124-2207
s
Number: TBC-3R1
Date: November 8, 1999
Document Effectivity: D6-27370-TBC
Subject: STANDBY POWER TEST
Reason: This is a reissue of TBC-3, dated January 29, 1999, which informed
flight crews of an anomaly during a standby power test. The purpose of
this reissue is to provide Service Bulletin information.
Information in this 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 test has revealed that when performing the standby power test, an anomaly
in the stall management/yaw damper (-1SMYD) software may cause several
faults to appear after the test is completed. These faults include:
• Captain’s airspeed indicator VMO arc disappears
• SPD LIMIT flag (amber) displays on the mach airspeed indicator
• MACH TRIM light illuminates
• AUTO SLAT light illuminates
• ELEC light illuminates
These faults must be cleared by maintenance recycling the -1SMYD circuit
breaker and/or clearing the fault in the Electrical Metering Panel prior to flight.
The condition will be fixed with the installation of -2SMYD or higher software.
Component Service Bulletin
285A1010-27-01, released February
25,
1999,
provides information on the upgrade to the -2SMYD software. Component
Service Bulletin
285A1010-27-03, released February
25,
1999, provides
information on the upgrade to the -4SMYD software. These Service Bulletins and
this Operations Manual bulletin apply to to airplanes with manufacturer’s line
numbers 1 through 51.
Page 1 of 2
Operations Manual Bulletin No. TBC-3R1, Dated November 8, 1999 (continued)
Administrative Information
This bulletin replaces bulletin TBC-3, dated January 29, 1999. Discard bulletin
TBC-3. Revise the Bulletin Record page to show TBC-3 as “Cancelled” (CANC).
Insert this bulletin behind the Operations Manual Bulletin Record page in
Volume 1 of your Operations Manual. Amend the Operations Manual Bulletin
Record to show bulletin TBC-3R1 “Incorporated” (INC).
Please send all correspondence regarding this Operations Manual Bulletin to one
of the following addresses:
Mailing Address Manager, Flight Technical Publications
737 Model
Boeing Commercial Airplane Group
P.O. Box 3707 MS 20-89
Seattle, WA 98124-2207
USA
Fax:
(206) 662-7812
Telex:
329430 Station 627
SITA:
SEABO7X Station 627
CS3-2686
Page 2 of 2
Sect Name
Section Name
Operations Manual Bulletin
for
The Boeing Company
The Boeing Company
Seattle, Washington 98124-2207
s
Number: TBC-5R1
Date: November 15, 2000
Document Effectivity: D6-27370-TBC
Subject: WINDOW OVERHEAT
Reason: This is a reissue of TBC-5 which informed flight crews of a window
OVERHEAT light anomaly. The purpose of this reissue is to provide
Service Bulletin information.
Information in this 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 tests have revealed power transfers may trigger the window OVERHEAT
lights to illuminate due to a relay/bus timing incompatibility.
Vendor Service Bulletin Koito 8300-30-040 provides information on the upgrade
that fixes this anomaly.
Operating Instructions
If the window OVERHEAT lights illuminate during a power transfer, the window
heat switches must be momentarily cycled OFF, and then back ON to clear the
problem. If the lights fail to extinguish, accomplish the Window Overheat
non-normal procedure.
Administrative Information
This bulletin replaces bulletin TBC-5, dated January 29, 1999. Discard bulletin
TBC-5. Revise the Bulletin Record page to show TBC-5 as “Cancelled” (CANC).
Insert this bulletin behind the Operations Manual Bulletin Record page in
Volume 1 of your Operations Manual. Amend the Operations Manual Bulletin
Record to show bulletin TBC-5R1 “In Effect” (IE).
Page 1 of 2
Operations Manual Bulletin No. TBC-5R1, Dated November 15, 2000 (continued)
This bulletin will be cancelled after Boeing is notified that all affected airplanes
in your fleet have been modified by Vendor Service Bulletin Koito 8300-30-040.
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.
Please send all correspondence regarding Operations Manual Bulletin Status to
one of the following addresses:
Mailing Address Manager, Flight Technical Publications
737 Model
Boeing Commercial Airplane Group
P.O. Box 3707 MS 20-89
Seattle, WA 98124-2207
USA
Fax:
(206) 662-7812
Telex:
329430 Station 627
SITA:
SEABO7X Station 627
E-mail:
FlightTechnicalPublications@Boeing.com
CS3-2691
Page 2 of 2
Sect Name
Section Name
Operations Manual Bulletin
for
The Boeing Company
The Boeing Company
Seattle, Washington 98124-2207
s
Number: TBC-6
Date: January 29, 1999
Document Effectivity: D6-27370-TBC
Subject: Possible Autopilot Low Frequency Pitch Oscillation During Flap
Extension While in a Turn.
Reason: To inform flight crews of the possibility that the auopilot may not hold
altitude when extending flaps from Flaps UP to Flaps 1.
Information in this 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
During a recent test flight on the 737-700 with the autopilot engaged in command
(CMD) mode, a low frequency pitch oscillation was experienced while entering a
turn with flaps UP and simultaneously selecting flaps 1. Airspeed at the time was
greater than 230 knots. This oscillation occurs as a result of a combination of
aircraft loading near the aft CG limit, off nominal rigging of the elevator tab shift
mechanism and FCC timing of the tab shift with flap extension.
This anomaly is fixed when Service Bulletin 737- 27-1215 is installed.
Operating Instructions
Although the probability of having all of the parameters required to trigger this
anomaly is considered to be low, flight crews should be made aware of this
possible condition and should monitor autopilot performance while turning and
simultaneously selecting flaps from UP to 1. In some cases, disconnecting the
autopilot and retrimming may be necessary. This anomaly has not been
experienced at any other flap position.
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