SDR ASAA2021011633897

Service difficulty report · Fault Message · Boeing 737990ER

Difficulty date: January 16, 2021
Submitted: January 27, 2021
Operation: Air carrier
Aircraft: N495AS
Make and model: Boeing 737990ER
Aircraft serial: 41728
Aircraft time: 18,455 hours, 5,854 cycles
Engine: Cfmint CFM567B27E
System (JASC): 7530 · Compressor Bleed Control
Part: Fault Message
Condition: False Activation
Location: Nr 2 Engine
Stage of operation: IN
How discovered: V
Nature of condition: N
Precautionary procedure: K

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

What was found

WHILE ACCOMPLISHING TC 78273000 NFOUND #2 ENGINE SHORT TIME FAULT MSG # 75-30452, VBV POSITION SIGNAL DISAGREE. GROUNDED - YES. ACCOMPLISHED B737-900 FIM 75-32 TASK 803 VBV POSITION SIGNAL FAULT ISOLATION NO LOGGED FAULTS OK FOR CONTINUED SERVICE.