SDR FDEA201101040009

Service difficulty report · Tat Probe · Boeing 75728A

Difficulty date: January 4, 2011
Submitted: January 5, 2011
Operation: Air carrier
Aircraft: N914FD
Make and model: Boeing 75728A
Aircraft serial: 24367
Aircraft time: 72,856 hours, 21,273 cycles
System (JASC): 3412 · Outside Air Temperature Indicator/Sensor
Part: Tat Probe
Part number: 102LA2AG
Part serial: 56218
Condition: Failed
Stage of operation: CL
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

IMMEDIATELY AFTER TAKE OFF, TAT PROBE, RT & LT ENG EEC EICAS MESSAGES. CHANGED RELAY K143, NR1 GROUND SENSE, R & R RELAY K-410, R & R K203 SYS 2 AIR/GROUND RELAY, VERIFIED NEW PROBE READS 26 OHMS. FOUND TAT PROBE READING OPEN. R & R TAT PROBE IAW MM 34-12-02-4. PERFORMED ADJ/TEST IAW MM 30-33-00-5. OPS CHECK NORMAL.

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