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SDR 4511209142005

Open the Markdown

Service difficulty report · Monopole · Lear 45LEAR

FAA SDR system

Difficulty date
September 14, 2005
Submitted
October 6, 2005
Operation
Air carrier
Aircraft
N415FX
Make and model
Lear 45LEAR
Aircraft serial
112
Aircraft time
4,189 hours, 3,188 cycles
Engine
Alidsg TPE331201A
Engine time
4,189 hours, 3,186 cycles
System (JASC)
7603 · Power Lever
Part
Monopole
Condition
Failed
Location
Engine
Stage of operation
CL
How discovered
O
Nature of condition
R, J
Precautionary procedure
A

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

What was found

ENGINE ROLLS BACK 10 PERCENT AND THE GREEN IGN. LIGHT ILLUMINATES WHEN THE POWER LEVER IS ADVANCED INTO MCT. LT ENGINE ROLLS BACK 10 PERCENT N1 IN MCT OR MCR. THE AUTO IGN ALSO INDICATED DURING ROLL BACKS W/AIRCRAFT YAW TO THE LEFT. ALL INDICATIONS NORMAL AT OTHER POWER SETTINGS. MX FOUND THE N1 MONOPOLE SHIMMED AT .038. SHOULD HAVE BEEN SHIMMED .012 TO .015. MONOPOLE RESHIMMED TO PROPER DIMENSION AND ENGINE PERFORMANCE RUN MADE SATISFACTORILY. COULD NOT FIND IN RECORDS WHERE N1 MONOPOLE HAD BEEN RECENTLY DISTURBED. N2 MONOPOLE HAD BEEN REPLACED ONE WEEK PREVIOUS WITH SATISFACTORY FLIGHTS MADE BETWEEN INCIDENTS.