SDR QR9R20220330001

Service difficulty report · Pickup · Bolkms BK117C2

Difficulty date: March 30, 2022
Submitted: March 30, 2022
Operation: General aviation
Filed by: QR9R369D
M1 Support Services
Make and model: Bolkms BK117C2
Aircraft serial: 14723419714
Aircraft time: 2,361 hours
System (JASC): 6240 · Main Rotor Indicating System
Part: Pickup
Part number: 430106202
Part serial: NA
Condition: Faulty
Stage of operation: TO
How discovered: V
Nature of condition: J
Precautionary procedure: C

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

What was found

FIVE SECONDS AFTER STARTING #1 ENGINE, NR DROPPED TO ZERO THEN RETURNED 3 MINUTES LATER. AFTER RESET, NR LAGGED GOING INTO FLIGHT. TOOK OFF, DROPPED TO ZERO 3 TIMES IN FIVE MINUTE PERIOD. REPLACED SPEED PICK-UP, MOC SUCCESSFULLY COMPLETED.