SDR ASMF20200122001

Service difficulty report · Antenna · Boeing 7879

Difficulty date: November 19, 2019
Submitted: January 22, 2020
Operation: Air carrier
Aircraft: N128AM
Make and model: Boeing 7879
Aircraft serial: 65313
Aircraft time: 3,254 hours, 375 cycles
System (JASC): 3445 · Air Collision Avoidance System
Part: Antenna
Part number: 8660020101
Part serial: 49FD03
Condition: Failed
Location: Zone 500
Part time: 3,254 hours, 375 cycles
Stage of operation: TX
How discovered: 9
Nature of condition: J
Precautionary procedure: O

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

What was found

AIRCRAFT RETURNED TO PLATFORM DUE TO DURING TAXING BEFORE START THE TAKEOFF, THE TCAS LT AND TCAS RT MESSAGES WERE SHOWN, SO MAINTENANCE PERSONNEL PERFORMED RESET CONTINUING FAILURE. THE ANTENNA WAS REPLACED IAW AMM DMC-B787-A-34-42-05-00A-720-A, ALL CORRECT.

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