SDR CA120710002

Service difficulty report · Servo · Robsin R44RAVENII

Difficulty date: June 28, 2012
Submitted: September 14, 2015
Operation: General aviation
Make and model: Robsin R44RAVENII
Engine: Lyc IO540AE1A5
System (JASC): 2910 · Hydraulic System, Main
Part: Servo
Part number: D2121
Condition: Leaking
Location: Hyd System
Part time: 619 hours
Stage of operation: IN
How discovered: 9
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

(CAN) DURING 50/100 HOUR INSPECTION OF THE HELICOPTER, THE LT HYDRAULIC SERVO, PN: D212-1, AND RT HYDRAULIC SERVO WERE FOUND TO BE LEAKING. HYDRAULIC PUMP, PN: D500-1, SN: 4830 AND HYDRAULIC RESERVOIR, PN: D211-2, SN: 4673 WERE ALSO FOUND TO BE LEAKING. ALL 4 HYDRAULIC COMPONENTS REPLACED.