Service difficulty report · Motor · Beech 400A

Difficulty date
October 9, 2014
Submitted
October 13, 2014
Operation
Air carrier
Aircraft
N404BL
Make and model
Beech 400A
Aircraft serial
RK367
Aircraft time
4,000 hours, 3,888 cycles
Part
Motor
Part number
11341045
Part serial
490
Condition
Overheated
Location
Ac Bay
Stage of operation
IN
How discovered
O
Nature of condition
B
Precautionary procedure
K

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

What was found

THE VAPOR CYCLE AC SYS WAS INOPERATIVE. TROUBLESHOOTING FOUND THE AC COMPRESSOR DRIVE MOTOR HAD OVERHEATED BY EVIDENCE OF PEELING PAINT ON UNIT. THIS DRIVE MOTOR WAS INSTALLED A MONTH & A HALF PRIOR & FAILED WITH 55 HOURS OF OPERATION. THE DRIVE MOTOR PN 1134104-5 SN 490 WAS REMOVED FROM SERVICE & AN OVERHAULED UNIT INSTALLED. FUNCTIONAL CHECKS OK.

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