Service difficulty report · Switch · Boeing 7673S1

Difficulty date
December 8, 2019
Submitted
December 16, 2019
Operation
Air carrier
Aircraft
N640GT
Make and model
Boeing 7673S1
Aircraft serial
25221
Aircraft time
89,862 hours, 19,132 cycles
Part
Switch
Part number
43467410312107
Condition
Failed
Location
Rt Engine
Stage of operation
TX
How discovered
O
Nature of condition
P
Precautionary procedure
O

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

What was found

WHEN STARTING RIGHT ENGINE, SPAR VALVE LIGHT DIDN'T COME ON. SPAR VALVE LIGHT ILLUMINATED NORMALLY ON SECOND ENGINE START. REMOVED AND REPLACED THE RT ENGINE SPAR VALVE LIGHT ASSEMBLY IAW AMM CH 33-16-02. INDICATION NORMAL DURING TEST PER AMM CH 33-16-02. THIS CLEARS MDDR 121747.</P>)

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