Service difficulty report · Line · Lear 35A

Difficulty date
August 19, 2009
Submitted
September 4, 2009
Operation
General aviation
Aircraft
N325NW
Make and model
Lear 35A
Aircraft serial
325
Aircraft time
12,554 hours, 11,402 cycles
Engine
Garrtt TFE731*
Part
Line
Part number
2607003368
Condition
Corroded
Location
Hyd System
Stage of operation
NR
How discovered
9
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

LINE HAD CORROSION ON 90 DEGREE BENDS ADJACENT TO FERRULES FOR B-NUTS. THE PORTION OF THE LINE AT BOTH ENDS HAD CORROSION THA WAS PRESENT WHERE THE PROTECTIVE COATING WAS REMOVED, APPARENTLY DURING MFG OF THE PART. THE CORROSION HAD EATEN THROUGH ONE END OF THIS LOCATION SUFFICIENT TO REDUCE WALL THICKNESS ALLOWING LINE TO BURST.

More about the Lear 35A