SDR ASAA2016110318595

Service difficulty report · Tat Probe · Boeing 737990ER

Difficulty date: November 3, 2016
Submitted: November 9, 2016
Operation: Air carrier
Aircraft: N471AS
Make and model: Boeing 737990ER
Aircraft serial: 41703
Aircraft time: 8,253 hours, 2,720 cycles
System (JASC): 7700 · Engine Indicating System
Part: Tat Probe
Part number: 102AH2AG
Condition: Failed
Stage of operation: TX
How discovered: O
Nature of condition: O
Precautionary procedure: O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

WHEN STARTING ENGINE NR 2, NO FUEL FLOW WHEN START LEVER RAISED. ACFT GROUNDED. BITE CHECK OF CDU SHOWS LEFT IGN INOP NR 2 ENGINE MESSAGE 74-30952 IAW FIM TASK 73-00-00-810-801-F00. VERIFIED RIGHT IGNITION FUCNTIONS NORMAL. UPLOADED EEC SOFTWARE PN 2044M25P18 VERSION 7E65 (7.B.W1F3) IAW AMM 73-21-60-470-801-F00. R & R TAT PROBE IAW AMM 34-21-06. TEST NORMAL. EEC TEST NORMAL. AUDIBLE TEST NORMAL IAW AMM 74-00-00-750-801-F00. RUN NR 2 ENG IAW AMM 71-00-00/501. FUEL FLOW NORMAL.