What was found
WHILE ACCOMPLISHING T/C 78273000, FOUND ENG #1 ECONOMIC FAULT CODE 77-20871, "THE TOP LEFT EGT SIGNAL (T495S4) IS OUT OF RANGE." FLIGHT LEG 1. GROUNDED - YES. ON DEFERRAL.
- Difficulty date
- July 9, 2023
- Submitted
- July 13, 2023
- Operation
- Air carrier
- Aircraft
- N586AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35189
- Aircraft time
- 56,265 hours, 16,894 cycles
- System (JASC)
- 7720 · Engine Temperature Indicating System
- Part
- Unknown
- Part number
- UNKNOWN
- Condition
- Unknown
- Location
- Unknown
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.