SDR ASAA2023082544799

Service difficulty report · Unknown · Boeing 7379

Difficulty date: August 25, 2023
Submitted: August 29, 2023
Operation: Air carrier
Aircraft: N971AK
Make and model: Boeing 7379
Aircraft serial: 43339
Aircraft time: 6,229 hours, 1,782 cycles
System (JASC): 7720 · Engine Temperature Indicating System
Part: Unknown
Part number: UNKNOWN
Condition: Unknown
Location: Unknown
Stage of operation: IN
How discovered: V
Nature of condition: J
Precautionary procedure: K

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

What was found

WHILE FULLFILLING TASKCARD #05-020-01, PRESENT LEG FAULTS, FOUND ENGINE #1 SHOWS ECONOMIC FAULT #77-41632, "EGT PROBE 3 VALUE DOES NOT AGREE WITH THE AVERAGE OF ALL OTHER VALID EGT PROBE VALUES." INTERMMITENT FAULT HAS BEEN PRESENT ON MANY OTHER LEGS. GROUNDED - YES. ON DEFERRAL.

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