What was found
WHILE ACCOMPLISHING T/C78273000 FAULT CODE 75-30412 APPEARED ON #2 ENGINE, THE HPTACC POSITION SIGNAL DISAGREE, ECONOMIC FAULT. MUST BE CORRECTED IN 500 HOURS. GROUNDED - YES. ON DEFERRAL.
- Difficulty date
- August 16, 2023
- Submitted
- August 21, 2023
- Operation
- Air carrier
- Aircraft
- N493AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41727
- Aircraft time
- 26,526 hours, 8,321 cycles
- System (JASC)
- 7500 · Engine Bleed Air System
- Part
- Unknown
- Part number
- UNKNOWN
- Condition
- Unknown
- Location
- Unknown
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- J
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.