What was found
WHILE ACCOMPLISHING TC 78273000, NR 2 ENGINE FAULT MSG 77-20872, THE TOP LT EGT SIGNAL, (T495-S4) IS OUT OF RANGE. THIS IS A LONG TIME FAULT TO BE REPAIRED WITHIN 450 FLT HRS. ACFT GROUNDED. ON DEFERRAL.
- Difficulty date
- November 13, 2015
- Submitted
- November 17, 2015
- Operation
- Air carrier
- Aircraft
- N506AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35690
- Aircraft time
- 28,573 hours, 8,792 cycles
- Engine
- Cfmint CFM567B27
- System (JASC)
- 7720 · Engine Temperature Indicating System
- Part
- Engine
- Condition
- Faulted
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.