SDR 95ZZZX4039

Service difficulty report · Gearbox · Aerosp AS355F1

Difficulty date: June 22, 1995
Submitted: March 26, 2000
Operation: General aviation
Aircraft: N5774M
Make and model: Aerosp AS355F1
Aircraft serial: 5009
Engine: Allsn 250C20F
System (JASC): 7260 · Turbine Engine Accessory Drive
Part: Gearbox
Condition: Failed
Location: Nr 1 Engine
Part time: 11,516 hours
Stage of operation: CR
Nature of condition: J, X
Precautionary procedure: A

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

What was found

INBOUND FOR OFFSHORE PLATFORM, PILOT REPORTED NR 1 ENGINE CHIP LIGHT ILLUMINATED, AIRCRAFT YAWED, ENGINE FLAMED OUT. LANDED AT ONSHORE WITHOUT INCIDENT. INVESTIGATION REVEALED BOTH ENGINE ACCESSORY GEARBOX CHIP PLUGS COVERED WITH METAL. N1 DOES NOT TURN FREELY. ENGINE TSO, 3,199:55.

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