SDR UIEA2019081605196

Service difficulty report · Connector · Boeing 767306

Difficulty date: August 16, 2019
Submitted: August 23, 2019
Operation: Air carrier
Aircraft: N1427A
Make and model: Boeing 767306
Aircraft serial: 28098
Aircraft time: 79,599 hours, 17,011 cycles
System (JASC): 3497 · Navigation System Wiring
Part: Connector
Condition: Damaged
Location: Wx Radar
Stage of operation: NR
How discovered: 9
Nature of condition: O
Precautionary procedure: O

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

What was found

RIGHT SYS RADAR DISPLAYS ATT DISAGREE LEFT SYS ON OK. PERFORMED R WXR TEST IAW FIM 34-43 F/T 805. WXR FAIL ATT. SWAPPED WX RADAR RT PER AMM 34-43-01. NO HELP. WXR ATT FAULT WHEN USING RT WXR. INSPECTED WXR ANTENNA PER AMM 34-43-00. NO DEFECTS. FOUND D4769 PIN CONNECTOR PIN 44 GROUNDING BUS 3 OF IRU RIGHT. IAW WDM 34-21-27 PIN 44 IS UNUSED. DE-PINNED AND STOWED WIRE W9003-902B-24 PER SWPM 20-61-00. RIGHT WEATHER RADAR OPS CHECKS GOOD PER AMM 34-43-00.