Service difficulty report · Pressure Sensor · Boeing 7879

Difficulty date
January 5, 2023
Submitted
January 6, 2023
Operation
Air carrier
Aircraft
N26967
Make and model
Boeing 7879
Aircraft serial
60144
Aircraft time
29,624 hours, 2,931 cycles
Engine
GENX1B74
Part
Pressure Sensor
Part number
NA
Condition
Contaminated
Location
N/A
Stage of operation
TO
How discovered
O
Nature of condition
R
Precautionary procedure
C, D

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

What was found

ON TAKEOFF RIGHT ENGINE WAS SLOW TO SPOOL UP AFTER TOGA ENGAGED PERFORMED EEC SYSTEM TEST, REF AMM B787-A-G71-00-00-46B300B-A, NO FAULT HISTORY OR PRESENT LEG FAULTS. SEE PIC PERFORMED EEC PS3 PRESSURE SENSE TUBE BLOW OUT , FOUND EXCESSIVE AS PER TOMC REQUEST, PERFORMED TEST #6 POWER ASSURANCE TEST, PE OIL SERVICE ACCOMPLISHED AT EWR FOR FLT 2120 ON 04 JAN 16:32:39 ALL TEST PASS MOISTURE IN TUBE. AS PER AMM 73-21-00-02A-280B-A. NEED HI POWER R AMM DMC B787-A-G71-00-00-15A-340A-A, ALL PARAMETERS AND TARGET ENGINE 1: 00 CHECKED BY U085053 RUN TO VERIFY. S NORMAL , TABLE 13 GENX-1B76AP2G01 P1P2, ENG PARA AND TARGETS F ENGINE 2: 00 CHECKED BY U085053 FOLLOWED THROTTLE ACCL WITH NO HESITATION AND NOT SLOW TO SPOOL. ENGINE 3: ADD EMP:U085904 ENGINE 4: APU: REF. LOG PG 3498229 PERFORMED EA 7321-01546 REV C OP1 "PS3 LINE MOISTURE REMOVAL". NO DISCREPANCIES NOTED, OK TO CONTINUE.

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