Service difficulty report · Housing · Bell 412

Difficulty date
October 18, 2012
Submitted
October 22, 2012
Operation
Air carrier
Aircraft
N397AL
Make and model
Bell 412
Aircraft serial
36012
Aircraft time
14,084 hours, 37,098 cycles
Engine
Pwa PT6T3B
Engine time
13,676 hours
Part
Housing
Part number
3028855
Condition
Cracked
Location
Chip Detector
Part time
2,656 hours
Component
Gearbox · PT6T3B
Component part number
3024780
Stage of operation
IN
How discovered
V
Nature of condition
K
Precautionary procedure
K

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

What was found

ON INSPECTION, AN OIL LEAK WAS DISCOVERED IN THE COMBINED GEARBOX AREA. ON FURTHER INSPECTION THE NR 1 ENGINE CHIP DETECTOR HSG ATTACHED TO THE GEARBOX WAS FOUND CRACKED.

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