SDR CWQA06302011

Service difficulty report · Switch · Raythn HAWKER800XP

Difficulty date: June 30, 2011
Submitted: July 1, 2011
Operation: Air carrier
Aircraft: N999RZ
Make and model: Raythn HAWKER800XP
Aircraft serial: 258361
Aircraft time: 8,756 hours, 6,203 cycles
Engine: Garrtt TFE7315BR
System (JASC): 2612 · Fire Detection
Part: Switch
Part number: 1734362600
Condition: False Indication
Location: Apu
Stage of operation: AP
How discovered: O
Nature of condition: N
Precautionary procedure: F

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

What was found

(CWQA) APU FIRE WARNING AIRBOURNE, APU AUTO SHUTDOWN, APU FIRE BOTTLE BLOWN IAW CHECKLIST, FIRE WARNING WENT AWAY. INSPECTION PERFORMED, DETERMINED NO FIRE, DETERMINED WAS FALSE FIRE WARNING. TESTING AND REPLACING FIRE DETECT SWITCH PN 17343-62-600, SN NSN, SUSPECT PART BAD FROM STOCK PREVIOUSLY REPLACED JUNE 26TH 2011 FOR SCHEDULED 60 MONTH BENCH TEST.