Service difficulty report · Efis · Bolkms BK117C2

Difficulty date
May 19, 2025
Submitted
May 20, 2025
Operation
Air carrier
Aircraft
N491HC
Make and model
Bolkms BK117C2
Aircraft serial
9878
Aircraft time
849 hours, 2,893 cycles
Part
Efis
Condition
Interference
Location
Zone 100
Part time
849 hours
Stage of operation
NR
How discovered
O
Nature of condition
O
Precautionary procedure
O

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

What was found

WHILE PASSING OVER A 5G COMMUNICATIONS TOWER, JUST EAST ON HCA KINGWOOD HOSPITAL, KINGWOOD, TX, THE HELICOPTER HAD AN ARRAY OF CAUTIONS WITH THE GENESIS. THE PIC STATED, “JUST STARTED THROWING ALL KINDS OF CAUTIONS ON THE GENESIS AND THEN KICKED OFF MY UPPER MODES”. THE PILOT DID NOT TAKE ANY EVASIVE ACTION, FLEW THE HELICOPTER MANUALLY UNTIL ALL OF THE CAUTIONS EXTINGUISHED AND THE AVIONICS RETURNED TO NORMAL. THIS IS A KNOWN ISSUE WITH GENESYS AND 5G.