SDR 97ZZZX955

Service difficulty report · Nozzle · Hughes 369D

Difficulty date
January 12, 1997
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N7012G
Make and model
Hughes 369D
Aircraft serial
510981D
Engine
Allsn 250C20B
Part
Nozzle
Part number
6890917
Condition
Screen Failed
Location
Engine
Stage of operation
CL
Nature of condition
R
Precautionary procedure
A

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

What was found

HELICOPTER TAKEOFF, CLIMB TO 50 FEET AGL. ENG LOST POWER, INITIATED EMERGENCY LANDING. (CRASH). AIRCRAFT SUBSTANTIALLY DAMAGED. NO INJURIES. FOUND FUEL NOZZLE INLET SCREEN COLLAPSED CAUSING SUBSEQUENT LOSS OF FUEL FLOW TO TURBINE SECTION CAUSING LOSS OF POWER TO ENG. SCREEN APPEARS TO HAVE DEBRIS ON IT. NO DEBRIS FOUND IN ANY OTHER FILTER OR FUEL SYSTEM SUPPLY OR COMPONENT. MM 10W2 HAS NO REQUIRED INSPECTION OF THIS 'LAST CHANCE FILTER' SCREEN; THUS, PROBLEM COULD NOT BE DETECTED TO PREVENT ACCIDENT. SUBMITTER SUGGESTS INSPECTION, CLEANING, OR REPLACMENT OF SCREEN BE PART OF THE SCHEDULED INSPECTION CRITERIA OF THE ALLISON 10W2 MANUAL AND BE PERFORMED EVERY 100 HOURS OF ENGINE OPERATING TIME.