Service difficulty report · Start Valve · Boeing 737823

Difficulty date
June 15, 2025
Submitted
June 17, 2025
Operation
Air carrier
Aircraft
N944AN
Make and model
Boeing 737823
Aircraft serial
29535
Aircraft time
70,474 hours, 29,687 cycles
Engine
Cfmint CFM567B242
Engine time
64,492 hours, 27,349 cycles
Part
Start Valve
Part number
32896305
Part serial
19394
Condition
Failed
Location
Nr 1 Engine
Part time
19,791 hours, 8,658 cycles
Stage of operation
CR
How discovered
O
Nature of condition
K, J
Precautionary procedure
E, A

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

What was found

AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: DISPLAYED SHOWING ENGINE 1 OIL QUANTITY 0 IN FLIGHT, OIL PRESSURE AND TEMPERATURE INDICATIONS WERE NORMAL BUT EVENTUALLY OIL PRESSURE DROPPED, PRECAUTIONARY ENGINE SHUTDOWN. AIRCRAFT DIVERTED TO AND LANDED SAFELY AT DEN. REMOVED AND REPLACED NUMBER 1 ENGINE STARTER (AALA202506170325), PER AMM 80-11-01. ADDITIONLY, REMOVED AND REPLACED NUMBER 1 ENGINE STARTER VALVE (AALA202506171098), PER AMM 80-11-03.