Service difficulty report · Amplifier · Bombdr DHC8402

Difficulty date
May 13, 2012
Submitted
May 17, 2012
Operation
Air carrier
Aircraft
N417QX
Make and model
Bombdr DHC8402
Aircraft serial
4086
Aircraft time
20,255 hours, 20,381 cycles
Part
Amplifier
Part number
47387203
Condition
Malfunctioned
Location
Fire Detection
Stage of operation
DE
How discovered
O
Nature of condition
N
Precautionary procedure
O

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

What was found

WHILE ON DESCENT, RECEIVED A CHECK FIRE DETECTION WARNING LIGHT. THE APU BOTTLE LOW LIGHT FLICKERED. RESET THE MASTER WARNING LIGHT. THE CHECK FIRE DETECTION WARNING LIGHT EXTINGUISHED. AFTER A FEW SECONDS THE CHECK FIRE DETECTION WARNING LIGHT AGAIN FLASHED ALONG WITH THE MASTER WARNING LIGHT. THIS OCCURED ENTIRE FLIGHT. REPLACED FIRE CONTROL AMPLIFER IAW AMM TASK 26-10-01-00-801 AND 26-10-01-400-801. OPS CHECKED GOOD. RETURNED TO SERVICE.