SDR ASAA2021030134219

Service difficulty report · Valve · Boeing 737890

Difficulty date: March 1, 2021
Submitted: March 3, 2021
Operation: Air carrier
Aircraft: N596AS
Make and model: Boeing 737890
Aircraft serial: 35688
Aircraft time: 46,432 hours, 13,865 cycles
Engine: Cfmint CFM567B27
Engine time: 55,288 hours, 16,547 cycles
System (JASC): 7600 · Engine Controls
Part: Valve
Condition: Cracked
Location: Lt Engine
Part time: 55,288 hours, 16,547 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

REF T/C 78273000 FAULT FOUND ENGINE #1 76-31361. LONG TIME FAULT. THE START LEVER SIGNALS DISAGREE. GROUNDED - YES. REMOVED AND REPLACED #1 ENGINE ESN # 893814 DUE FAILED BORESCOPE INSPECTION PER LOGPAGE 60083784. TRANSFERRED TO SHOP W/O #1865895.