Service difficulty report · Unknown · Boeing 737890

Difficulty date
August 15, 2023
Submitted
August 21, 2023
Operation
Air carrier
Aircraft
N518AS
Make and model
Boeing 737890
Aircraft serial
35693
Aircraft time
52,709 hours, 15,530 cycles
Part
Unknown
Part number
UNKNOWN
Condition
Unknown
Location
Unknown
Stage of operation
IN
How discovered
V
Nature of condition
J
Precautionary procedure
K

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

What was found

ENG 1 SHORT TIME FAULT 73-30311 "THE START SWITCH SIGNAL AND ARINC BUS DATA DISAGREE" FOUND WHILE PERFORMING T/C 78273000. GROUNDED - YES. PERFORMED T/C 78273000, VERIFIED FAULT MSG 73-30311 NOT LOGGED IN THE LAST 10 FLT LEGS ON #1 ENG. REF FIM TASK 73-24 TASK 813, #1 ENG EEC BITE TEST PASSED W/O FAULTS. CLOSED THIS PLT DEFERRAL C/N 15018518. SEAMC PETER NOTIFIED.