Service difficulty report · Wire Harness · Boeing 737890

Difficulty date
August 18, 2010
Submitted
August 18, 2010
Operation
Air carrier
Aircraft
N570AS
Make and model
Boeing 737890
Aircraft serial
35185
Aircraft time
13,415 hours, 3,955 cycles
Part
Wire Harness
Part number
3250455010
Condition
Shorted
Location
Nr 1 Engine
Stage of operation
IN
How discovered
O
Nature of condition
O
Precautionary procedure
K

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

What was found

GE DIAGNOSTICS REPORTS NR 1 ENGINE TREND DATA CONTINUES TO SHOW A SHIFT IN DELTA CRUISE AND TAKEOFF MARGIN INDICATIVE OF EGT INDICATION ERRORS. ACCOMP T49.5 & EGT SYSTEM INSP ALL RESISTANCES ARE WITHIN LIMITS. WHILE TESTING FOUND CJ10 (PD1011) SHORTED AT PINS 3 4. REPLACED CJ10 (DP1011) WITH NEW. ACCOMP FADEC SYSTEM TEST ALL TEST PASS REF WDM 77 21 11& M/M 77 21 01 200 801 73 21 00 700 802 73 21 06 400 803 & 77 21 01 400 801.