SDR FDEA201205171828

Service difficulty report · Override Switch · Doug MD1030F

Difficulty date: May 17, 2012
Submitted: May 18, 2012
Operation: Air carrier
Aircraft: N307FE
Make and model: Doug MD1030F
Aircraft serial: 48291
Aircraft time: 63,188 hours, 20,184 cycles
Engine: Ge CF650*
Engine time: 66,485 hours, 18,564 cycles
System (JASC): 7410 · Ignition Power Supply
Part: Override Switch
Part number: 5D0108219
Condition: Inoperative
Location: Engine Ignition
Part time: 63,188 hours, 20,184 cycles
Stage of operation: NR
How discovered: O
Nature of condition: Y, J
Precautionary procedure: A

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

What was found

DURING TEST FLIGHT AT FL250, SHUTDOWN NR 1 ENGINE AND ATTEMPTED MULTIPILE RESTARTS WHICH FAILED, DESCENDED TO 14,000 FT AND ATTEMPTED RESTARTS NOT AVAIL. RETURNED TO DEPARTURE WITH NR 1 ENGINE INOPERATIVE. FOUND ENGINE IGNITION OVERRIDE SWITCH INOP, REPLACED SWITCH S1-9170 IAW SWPM 20-20-02. ENGINE IGNITION AUDIBLE CHECKS GOOD IAW M/M 74-10-01-2.

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