Service difficulty report · Probe · Boeing 737900ER

Difficulty date
April 28, 2023
Submitted
April 28, 2023
Operation
Air carrier
Aircraft
N37462
Make and model
Boeing 737900ER
Aircraft serial
37207
Aircraft time
32,858 hours, 11,814 cycles
Part
Probe
Part number
TC29603
Part serial
7480
Condition
Inoperative
Location
Eng #2
Part time
39,495 hours, 13,852 cycles
Stage of operation
TO
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

EGT LIMIT EXCEEDED APPRX 50AGL ON TAKEOFF APPRX 950 DEGREES NOTE D AS PER PILOT REPORT, ENGINE TEMPERATURE EXCEEDED FOR CREW REPORTED ENG WAS NOT SHUT DOWN IN FLIGHT. NORMAL ENG SHUT APPROXIMATELY 10SECONDS, AT 102.3 POWER SETTING WITH NO OTHER DOWN AT GATE. ENGINE PARAMETERS EXCEEDING LIMITS. 1405177,QTY :1 1687699,QTY :1 ROTABLE PARTS CHANGE WAS INDICATED - TT # 1405177 SN OFF 7480 TT # 1687699 SN OFF 1479 ACQUIRED EXCEEDANCE DATA FROM FMCS CDU #2 ENGINE AT TAKEOFF EGT PEAKED AT 967 FOR 10.8 SECONDS. REF FIM 71-06 TASK 805 PERFORMED EEC BITE AND FOUND T495 FAULTS ON S3 AND S4.R&R S3 AND S4 PROBES AMM 77-21-01-400, REF FIM 71-00-00-800-804-F00 PARTS USED: PROBE, THERMOCO OFF 29-7721-9-9001 7480 ON 29-7721-9-9001 8379 PROBE, THERMOCO OFF 29-7721-9-9001 1479 ON 29-7721-9-9001 3689 REMOVED AND REPLACED J 9 J 10 AND CJ 10 HARNESSES ON #2 ENGINE :1 29-7721-9-9001,QTY :1 29-7300-3-0118,QTY :1 REF AMM 73-21-06 ALL OPS CHECKS GOOD AT THIS TIME PARTS USED: 29-7300-3-0119,QTY :1 29-7300-3-0105,QTY :1 29-7200-3-0444,QTY :1 29-7324-3-0001,QTY :1 00-0594-3-6313,QTY VERIFIED REMOVED AND REPLACED J 9, J 10 AND CJ 10 HARNESSES ON #2 ENGINE REF AMM 73-21-06 ALL OPS CHECKS GOOD AT THIS TIME.

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