Service difficulty report · Smoke Detector · Boeing 75724APF

Difficulty date
June 24, 2010
Submitted
June 25, 2010
Operation
Air carrier
Aircraft
N420UP
Make and model
Boeing 75724APF
Aircraft serial
23907
Part
Smoke Detector
Part number
2156206
Part serial
798
Condition
Inoperative
Location
Cockpit
Stage of operation
AP
How discovered
O
Nature of condition
G, B, J
Precautionary procedure
O

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

What was found

CREW REPORTED WEATHER RADAR FAILURE FOLLOWED BY "FLT DK EQ SMKE" AND "LT RECIRC FAN" MESSAGE. THIS WAS FOLLOWED BY "EQUIP OVHT." SMOKE LI LIGHT WAS ON. EADI'S LOST COLOR. ELECTRICAL BURNING SMELL NOTED BUT NO SMOKE SEEN. T/S IAW FIM 21-58-00 FOUND FLIGHT DECK SMOKE DETECTOR TS5295 FAULTY. R & R DETECTOR TS5295 IAW MM 21-58-19-2. EQUIPMENT COOLING SYS TESTS OK IAW MM 21-58-00-5. OPS TESTED WX RADAR IAW MM 34-43-00-5 PARA 2, OPS CHECKS NORMAL. NO OTHER FAULTS.

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