Service difficulty report · Exciter · Boeing 737990ER

Difficulty date
December 5, 2021
Submitted
December 7, 2021
Operation
Air carrier
Aircraft
N433AS
Make and model
Boeing 737990ER
Aircraft serial
41704
Aircraft time
30,392 hours, 9,662 cycles
Part
Exciter
Part number
9238M66P08
Part serial
UNJFE711
Condition
Inoperative
Location
#1 Engine
Part time
48,517 hours, 15,825 cycles
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

LH IGN ON #1 ENG IS INOP. GROUNDED - YES. PERB737-900 FIM 74-21 TASK 806 FOUND L1 EXCITER INOP. REMOVED AND REPLACED L1 EXCITER OPS CHECK GOOD PER B737-900 AMM 74-11-01.