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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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737-300/400/500MAINTENANCE MANUAL
~............................................................................... | TROUBLE | PROBABLE CAUSE | ISOLATION PROCEDURE | REPAIR | ................................................................................. |Mach airspeed | Mach/airspeed | Open MACH WARN SYS-1 (SYS | Replace the| |aural warning | indicator | -2) circuit breaker on P18 | defective mach/| |clacker sounds| | (P6). Remove flight | airspeed| |continuously | | recorder-mach airspeed | indicator| | | | warning module from aft | (AMM| | | | overhead panel P5. | 34-12-21/401).| | | | Disconnect connector D483.| | | | | Close circuit breaker.| | | | | If clacker sounds -| | | | | | | | | MACH AIRSPEED | Repeat above procedure. | Replace| | | WARNING TEST | If clacker does not sound -| defective| | | switch | | flight| | | | | recorder - mach| | | | | airspeed| | | | | warning| | | | | module| 2..............…..................…............................…................1
4. Put the Airplane in its usual condition.
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A. Remove electrical power if it is not necessary.
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34-15-00
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ú 01 Page 103
ú Nov 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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737-300/400/500MAINTENANCE MANUAL
MACH AIRSPEED WARNING SYSTEM - ADJUSTMENT/TEST
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1. General
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A. This subject has this task:
(1) A system test.
TASK 34-15-00-715-001
2. Mach Airspeed Warning System Test
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A. Equipment
(1)
Air data test set, Druck ADTS405F, Druck Ltd. (Vendor Code 0R667), Leicester, England; or equivalent
(2)
Pitot-static probe adapter kit, P/N AD-953-7, Nav-Aids Ltd., Montreal, Canada; or equivalent
(3)
Static port test adapter assembly, P/N F72823-40, or equivalent
(4)
Flow restrictors, control valves, cutoff valves, and pressure tape as necessary.
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