SDR BAQA20070010

Service difficulty report · Oil System · Aerosp AS355F1

Difficulty date: March 23, 2007
Submitted: April 10, 2007
Operation: Air carrier
Aircraft: N5797X
Make and model: Aerosp AS355F1
Aircraft serial: 5182
Aircraft time: 6,085 hours, 23,808 cycles
System (JASC): 6320 · Main Rotor Gearbox
Part: Oil System
Part number: OILPUMP
Part serial: M5301
Condition: Defective
Location: Main Gear Box
Part time: 6,689 hours, 2,097 cycles
Component: Main Gear Box · Urocop
Component part number: 355A32060004
Stage of operation: IN
How discovered: V
Nature of condition: O
Precautionary procedure: K

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

What was found

MAIN GEAR BOX OIL PUMP FAILED AD03-21-09-R1, DARK PURPLE COLORED OIL IN SIGHT GLASS. REMOVED AND REPLACED MAIN GEAR BOX CONTAINING OIL PUMP, COMBINER GEAR BOX, EPICYCLIC, AND ROTOR SHAFT ASSEMBLY IAW EMERGENCY ALERT SB 05.00.40 REV 2 DATED DECEMBER 20,2006

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