SDR ASAA2014072708700

Service difficulty report · Probe · Boeing 737890

Difficulty date: July 27, 2014
Submitted: July 31, 2014
Operation: Air carrier
Aircraft: N577AS
Make and model: Boeing 737890
Aircraft serial: 35186
Aircraft time: 28,112 hours, 8,427 cycles
System (JASC): 7720 · Engine Temperature Indicating System
Part: Probe
Part number: TC29604
Condition: Failed
Location: Nr 2 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.

What was found

FOUND FAULT 77-20872 TOP LT EGT SIGNAL, T495S4, IS OUT OF RANGE ON NR 2 ENGINE ECONOMIC FAULT ESN894362. ACFT GROUNDED. ACCOMPLISHED FIM 77-22, TASK 804. R & R S4 EGT PROBE REF MM 77-21-01-400-801-F00. OPS CK GOOD, REF MM 73-21-00-700-804-F00.