Service difficulty report · Line · Snias AS350B2

Difficulty date
January 31, 2013
Submitted
September 14, 2015
Operation
General aviation
Make and model
Snias AS350B2
Aircraft time
4,039 hours
Engine
Lyc LTS101700D2
Part
Line
Part number
704A34412251
Condition
Leaking
Location
Hyd System
Part time
4 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) WHILE CARRYING OUT A DAILY INSPECTION OF THE A/C AN AME NOTICED HYDRAULIC FLUID ON THE TRANSMISSION DECK. A GROUND RUN WAS CARRIED OUT TO DETERMINE THE LOCATION OF THE LEAK. THE LEAK WAS FOUND TO BE COMING FROM THE T/R SERVO PRESSURE LINE WHERE THE BRAIDED PORTION OF THE LINE IS CRIMPED TO THE END FITTING ON THE MANIFOLD SIDE. AS THE LINE WAS BEING REMOVED, IT WAS FOUND THAT THE FITTING WHICH ATTACHES TO THE T/R SERVO WAS ALSO LEAKING AT THE CRIMP. LINE WAS REPLACED WITH NEW. GROUND RUN LEAK CHECK AND HYDRAULIC CHECK WAS CARRIED OUT AND ACFT RETURNED TO BACK SERVICE.