Service difficulty report · Switch · Boeing 7373G7

Difficulty date
April 22, 2006
Submitted
April 24, 2006
Operation
Air carrier
Aircraft
N156AW
Make and model
Boeing 7373G7
Aircraft serial
23778
Aircraft time
59,304 hours, 41,389 cycles
Part
Switch
Part number
21EN1076
Condition
Faulty
Stage of operation
TO
How discovered
9
Nature of condition
J
Precautionary procedure
C

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

REPORTED THAT AT LESS THAN 30 KNOTS RECEIVED TAKEOFF CONFIGURATION WARNING HORN. ABORTED TAKEOFF & RETURNED TO GATE WITHOUT FURTHER EVENT. MX INSPECTED STAB SWITCHES, S132 & S546, NO DAMAGE FOUND. CLEANED E-11 BOX WITH COMPRESSED AIR. MX FOUND HIGH RESISTANCE SHORT DURING TROUBLESHOOTING. ISOLATED TO FLAP TAKEOFF WARNING SWITCH S130. REST OF CIRCUIT READ OFF SCALE HIGH, REFERENCE BOEING 737-300 WDM 27-43-01. MX R & R S130 FLAP T/O WARNING SWITCH IAW 737-300 MM 31-26-23-4. MX ALSO REPLACED AURAL WARNING UNIT FOR PRECAUTIONARY PURPOSES. OPS CHECKS GOOD. PERFORMED LOW SPEED TAXI CHECK AT FLAPS 1, 2 AND 5 AT VARIOUS THROTTLE SETTINGS, OPERATION GOOD.

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