Service difficulty report · Gyro · Beech B300

Difficulty date
July 23, 2009
Submitted
July 23, 2009
Operation
General aviation
Aircraft
N323DB
Make and model
Beech B300
Aircraft serial
FL23
Aircraft time
3,407 hours
Part
Gyro
Part number
6226136002
Part serial
5568
Condition
Crushed
Location
Nose Avionics
Stage of operation
DE
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

HSI WOULD FLAG INTERMITTENTLY AND ON VISUAL INSP, FOUND TOP OF ROTOR CAN CRUSHED IN. UNIT HAD ONLY 58.5 HOURS OF OPERATION SINCE OVERHAUL APROX 6 WEEKS EARLIER. SENT FOR 3RD PARTY EVALUATION AND REPAIR SINCE THIS WAS THE SECOND DG IN A ROW IN 6 MONTHS TO HAVE THE SAME FAILURE. FOUND GYRO CAPSULE LID DENTED IN, GYRO DRIFT OUT OF SPECIFICATIONS, FLUX DETECTOR ELECTRONIC OUT OF ALIGNMENT, FOUND IMPROPER SEAL ON GYRO CAPSULE, FOUND EXCESSIVE INNER GIMBAL END PLAY AND INNER GIMBAL BRGS FAILED.

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