Service difficulty report · Brake · Doug MD1030F

Difficulty date
July 14, 2010
Submitted
July 15, 2010
Operation
Air carrier
Aircraft
N307FE
Make and model
Doug MD1030F
Aircraft serial
48291
Aircraft time
59,639 hours, 18,839 cycles
Part
Brake
Part number
26094724
Part serial
B3311
Condition
Fire
Location
Mlg
Stage of operation
TX
How discovered
V
Nature of condition
A
Precautionary procedure
F

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

What was found

NORMAL LANDING WITH MEDIUM AUTOBRAKES. AFTER BLOCK IN, MECHANIC REPORTED A FIRE ON BRAKE NR 2. NEVER RECIEVED BRAKE OVERHEAT WARNING AND MAXIMUM BRAKE TEMP WAS 500 DEG C. AFTER BLOCK IN, NOTICED WHEEL ASSY NR 2 WAS SMOKING. WHEN APPROACHED FROM FAR NOTED FLAMES COMING FROM BRAKE BOTTOM REACHING THE TOP BRAKE CYLINDERS. USED DRY CHEMICAL POWDER FIRE EXTINGUISHER (MONO AMMONIA PHOSPHATE POWDER WITH NITROGEN) TO PUT FIRE OUT. WENT TO COCKPIT TO ADVISE FLT CREW. NOTED BRAKE NR 2 TEMP WAS 500 DEG C AND FALLING, USED AVIONICS COOLING UNIT TO COOL DOWN WHEEL & BRAKE ASSY, ALL OTHER BRAKE TEMPS WERE NOT ABOVE 270 DEG C WAITED 60 MINS TO APPROACH TIRES & BRAKES TO PERFORM HIGH ENERGY STOP INSP. INTERROGATED CFDS LAST FLT LEG FAULTS NO ASCU SHOWED, INTERROGATED ASCU NO FAULTS IN HISTORY NOR.

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