Service difficulty report · Unknown · Boeing 737990ER

Difficulty date
July 28, 2023
Submitted
August 1, 2023
Operation
Air carrier
Aircraft
N419AS
Make and model
Boeing 737990ER
Aircraft serial
41734
Aircraft time
38,592 hours, 12,215 cycles
Part
Unknown
Part number
UNKNOWN
Condition
Unknown
Location
Unknown
Stage of operation
IN
How discovered
O
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

WHILE PERFORMING T/C 78273000 FOUND SHORT TIME FAULT 75-30602 THE TBV POSITIONS SIGNALS DISAGREE ON #2 ENG. GROUNDED - YES. (RESOLVED ON W/O: 1963318 TASKCARD: N/R-00003 ) REFERENCE DEFECT 60520579, CLEARS PLT SEAMC ASHRAF NOTIFIED. LP 60520579: PERFORMED FIM TASK 75-23-802 TBV RECEPTICLE RESISTANCE CHECKS GOOD. J9, J10 HARNESS RESISTANCE CHECKS BETWEEN EEC AND TBV CHECKS GOOD, PERFORMED ACTUATORS TEST 12, TEST PASS. BITE OF EEC AGAIN FLAGS NO FAULTS. CLEARS PLT, SEAMC ASHRAF NOTIFIED.