What was found
WHILE PREFORMING TASK CARD 78273000 FOUND ON ENGINE #1 FAULT CODE 77-20861 THE BOTTOM LEFT EGT SIGNAL IS OUT OF RANGE. THIS FAULT IS ECONOMIC. GROUNDED - YES. ON DEFERRAL.
- Difficulty date
- October 4, 2023
- Submitted
- October 9, 2023
- Operation
- Air carrier
- Aircraft
- N419AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41734
- Aircraft time
- 39,391 hours, 12,439 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
- J
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.