SDR ASAA2018020423397

Service difficulty report · Probe · Boeing 737890

Difficulty date: February 4, 2018
Submitted: February 5, 2018
Operation: Air carrier
Aircraft: N530AS
Make and model: Boeing 737890
Aircraft serial: 36578
Aircraft time: 30,494 hours, 9,075 cycles
Engine: Cfmint CFM567B27
System (JASC): 7720 · Engine Temperature Indicating System
Part: Probe
Condition: Malfunctioned
Location: S3
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

NR 2 ENGINE, T49.5 EGT PROBES BEFORE AND AFTER CLEANING READOUT, EGT PROBE S3 SHOWS DASHES. ACFT GROUNDED. PERFORMED FIM 77-31 TASK 803. CLEANED THE CONNECTORS IAW AMM 77-21-00. PERFORMED RESISTANCE CHECK OF J10 TO DP1010, RESISTANCE CHECKED GOOD. PERFORMED RESISTANCE CHECK OF S3 EGT PROBE, RESISTANCE CHECKED GOOD IAW AMM 77-21-00. PERFORMED EEC TEST EEC, TEST PASSED IAW AMM 73-21-00.