Service difficulty report · Relay · Boeing 737890

Difficulty date
April 10, 2016
Submitted
May 13, 2016
Operation
Air carrier
Aircraft
N517AS
Make and model
Boeing 737890
Aircraft serial
35197
Aircraft time
28,191 hours, 8,407 cycles
Part
Relay
Part number
KLD4N
Condition
Failed
Location
Engine Start
Stage of operation
IN
How discovered
9
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

NR 2 ENGINE SHOWS LONG TIME FAULT MESSAGE NR: 76-31362, THE START LEVER SIGNALS DISAGREE. ACFT GROUNDED. ACCOMPLISHED TROUBLESHOOTING IAW FIM 76-11, TASK 801. ACCOMPLISHED INITIAL EVALUATION IAW FIM AND PERFORMED ELECTRONIC ENGINE CONTROL TEST IAW AMM 73-21-00-700-804-F00. NO FAULTS NOTED. NO RECENT FAULTS STORED AND FAULT HISTORY IS CLEAR. REPLACED ENGINE 2 START LEVER RELAY R567 AND R568 IAW SWPM 20-81-00. OPS CHECK NORMAL. WHILE ACCOMPLISHING STEP F 2 OF FIM 76-11, TASK 801, FOUND X2 TO GROUND AT R567 READING FLUCTUATING BETWEEN 1 MEG OHM TO 20 MEG OHMS, STILL TECHNICALLY OPEN AS REQUIRED IAW FIM 76-11, TASK 801, TABLE 201. NO OTHER DISCREPANCIES NOTED.