What was found
NR 1 ENGINE TREND DATA CONTINUES TO SHOW ERRORS INDICATIVE OF EGT INDICATION SYS ANOMALIES. ALL OTHER PARAMETERS ARE NORMAL. COCKPIT INDICATION IS STILL WITHIN RANGE. ACFT GROUNDED. REPLACED S1 & S4 T49.5. OPS GOOD IAW AMM 77-21-01.
- Difficulty date
- June 27, 2014
- Submitted
- June 27, 2014
- Operation
- Air carrier
- Aircraft
- N435AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 43292
- Aircraft time
- 2,575 hours, 834 cycles
- System (JASC)
- 7720 · Engine Temperature Indicating System
- Part
- Probe
- Part number
- TC29604
- Condition
- Failed
- Location
- Nr 1 Engine
- 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.