CEB-1419

i. f ~ k r• EXPORT CONTROLLED COMMERCIAL ENGINE BULLETIN ® Rolls Royce ( ' ·· ,~/ I / l itf41 / , ENGINE FUEL AND CONTROL - TECS ENGINE DRIVEN FUEL PUMP c INTERNAL SPLINE INSPECTION 1. PLANNING INFORMATION A. Effectivity 1) All Rolls-Royce Modei250®-C18, C20, -C20R, -C28, -C30, -B15G, -817, and -BI7F series engines with Triumph Engine Control Systems TECS) fuel pumps as listed below are affected by this bulletin. Rolls-Royce Part Number TECS Part Number 2307 4704 and 2307062 0 114480A 1 and 11480A2 2307045 9 and 2307 4 705 113300-03A 1 and 113300-04A 1 23070460 and 2307 4 706 11331 0 03A 1 and 11331 0 04A 1 23070461 and 23074707 113320 -03A 1 and 113320-04A 1 2) Spares - Aff ecte d B. Reason Some fuel pumps returned for repair have been found to exhibit unusually high wear on the inboard spline of the main drive shaft prior to C. Description This commercial engine bulletin transmits Triumph Engine Control System bulletins 73 2 and 73 4 and provides the requirements for repetitive spline inspections. D. Approval Technical aspects are FAA approved. E. Compliance Compliance Code 2: To be complied within specified flight hours and/or calendar time. 1. For pumps with accumulated operating time of over 1000 hours TSN or TSO, or since drive shaft replacement): To be complied with within 150 hours of receipt of this bulletin and every ·750 hours thereafter. 2. For pumps with accumulated operating time of no more than 1000 hours TSN or TSO, or since drive shaft replacement): To be complied with at 1000 hours TSN or TSO and every 750 hours thereafter. F. Material Availabili ty - Not re quired December 09, 2014 M250-C18 Series M250-C20 Series M250-C28 Series M250-C30 Seri es CEB 327 CEB 1419 CEB-73-2081 CEB 73 3142 M250-C20R Seri es M250-B15G M250-B17 Ser ies M250-B17F Series ©2014 Rolls-Royce Corporation CEB 73-4065 TP CEB-193 TP CEB 1356 TP CEB 2039 Page 1 of 3

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CEB-1419