Service difficulty report · Probe · Boeing 737823

Difficulty date
September 4, 2019
Submitted
September 9, 2019
Operation
Air carrier
Aircraft
N992AN
Make and model
Boeing 737823
Aircraft serial
31071
Aircraft time
31,591 hours, 12,810 cycles
Engine time
21,633 hours, 8,879 cycles
Part
Probe
Part number
TC2960X
Part serial
YC50703M
Condition
Unreliable
Location
Nr 1 Engine
Stage of operation
TO
How discovered
O
Nature of condition
N
Precautionary procedure
K

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

What was found

AIRCRAFT WAS GROUNDED: PILOT REPORTS DURING TAKE OFF ROLL OUT OF PHX, #1 & #2 ENGINE EGT OVER TEMPERATURE / RED INDICATION. EXTINGUISHED WHEN VNAV AT 1000 FT OAT WAS 42 C, T/O PWR WAS 27K MAX. NOTICED OVERTEMP AT ROTATION. ESTIMATE EGT WAS 970C FOR APPROX 30 SECONDS. WIND WAS 150 / 7 ON RWY 08. MAINTENANCE PERFORMED LT NR 1 ENGINE EGT INDICATION HEALTH CHECK IAW JOB CARD 4305. REMOVED AND REPLACED EGT PROBES T495SI AND T495SR IAW AMM 77-21-01. ACCOMPLISHED JOB CARD 71-95-01 ENGINE POWER ASSURANCE CHECK, ALL OPS CHECKS NORMAL. MAINTENANCE PERFORMED RT #2 ENGINE EGT INDICATION HEALTH CHECK IAW JOB CARD 4306, ALSO ACCOMPLISHED JOB CARD 71-95-01 ENGINE POWER ASSURANCE CHECK. ALL OPS CHECK NORMAL. (SEE SDR #AALA201909099008)