Service difficulty report · Cylinder · Bell 407

Difficulty date
February 20, 2022
Submitted
February 22, 2022
Operation
Air carrier
Aircraft
N470WC
Make and model
Bell 407
Aircraft serial
54484
Engine
Allsn 250C47B
Part
Cylinder
Part number
60007496144209
Condition
Defective
Location
Zone 100
Part time
4,807 hours, 10,521 cycles
Stage of operation
AA
How discovered
O
Nature of condition
S, E
Precautionary procedure
A

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

What was found

BIRD STRIKE IMPACTED EMERGENCY FLOATATION SYSTEM CABLE ON UNDERSIDE OF AIRCRAFT NEAR FRONT LANDING GEAR CROSS TUBE AT 117 KIAS AND CAUSED THE FLOATS TO DEPLOY AND INFLATE. BUFFETING AND VIBRATION A RESULT OF EXCESS AIRSPEED UNTIL A DECEL BELOW 65 KIAS WAS ESTABLISHED. WOG SWITCH AND STRUCTURE ALSO DAMAGED WHICH INITIATED WOG ADVISORY ON CAS.

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