SDR DHLA201000066

Service difficulty report · Fire Detector · Doug DC873F

Difficulty date: July 23, 2010
Submitted: July 27, 2010
Operation: Air carrier
Aircraft: N873SJ
Make and model: Doug DC873F
Aircraft serial: 46091
Aircraft time: 91,577 hours, 25,555 cycles
System (JASC): 2612 · Fire Detection
Part: Fire Detector
Condition: Malfunctioned
Location: Nr 4 Nacelle
Stage of operation: CR
How discovered: O
Nature of condition: N
Precautionary procedure: E

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

What was found

PROBLEM DESCRIPTION: NR 4 FIRE WARNING ILLUMINATED PERFORMED EMERGENCY PROCEDURES FIRED ONE BOTTLE. EMERGENCY WAS NOT DECLARED BY FLIGHT CREW. ACFT WAS GROUNDED. R & R THE RT FAN FIRE DETECTOR (PN 898463), NR 4 PYLON FIRE DETECTION WIRING (4W7004, 4W7005, 4W7008, PN 7801674-20, PN 7801684-20)AND PYLON CONNECTOR(R5-7008, PN DC60E1YSM7SN). FIRE WARNING OP'S CHECKED SERVICEABLE IAW MM 26-10-01.

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