SDR ASAA2019021268150

Service difficulty report · Connector · Boeing 737890

Difficulty date: February 6, 2019
Submitted: February 13, 2019
Operation: Air carrier
Aircraft: N597AS
Make and model: Boeing 737890
Aircraft serial: 35689
Aircraft time: 41,214 hours, 12,552 cycles
Engine: Cfmint CFM567B27
System (JASC): 7497 · Ignition System Wiring
Part: Connector
Condition: Failed
Location: Lt Wing
Stage of operation: IN
How discovered: O
Nature of condition: M
Precautionary procedure: K

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

What was found

#1 ENG DOES NOT SHOW EGT INDICATION ON ENGINE START. GROUNDED - YES. SWAPPED IGNITION BOXES - RIGHT C/B CONTINUES TO POP. SWAPPED LEADS, SAME RESULTS IN ALL 3 START POSITIONS. A/C RETURNED TO ORIG CONFIG EXCEPT IGN BOXES REMAIN SWAPPED POSITION. FOUND PIN 14 OF D30062 BURNED, ALSO PINS 4&5 OF D30064 BURNED.ACCOMPLISHED TEMPORARY REPAIR PER EA #800-74EA-21239. MTX GRD RAN #1 ENGINE, EGT IND NML REF B737-800 AMM 71-00-00.