SDR ASAA2013110596304

Service difficulty report · Radar · Boeing 737990ER

Difficulty date: November 5, 2013
Submitted: November 7, 2013
Operation: Air carrier
Aircraft: N402AS
Make and model: Boeing 737990ER
Aircraft serial: 41189
Aircraft time: 4,070 hours, 1,303 cycles
System (JASC): 3442 · Weather Radar System
Part: Radar
Condition: Abnormal
Location: Wx System
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

RADAR IN MANUAL OR AUTO, ALL DISTANCES, AND GAIN IN AUTO OR MANUAL SHOWS A WAGON WHEEL TYPE SPOKING AT ONE, TWO AND 3 O`CLOCK POSITIONS. ACFT GROUNDED. INFORMED THAT WX RADAR STARTED WORKING ABOUT 20 MINUTES BEFORE LANDING. ACCOMPLISHED GROUND VERIFICATION TEST IAW AMM 34-43-00-710 & FIM 34-43, TASK 801, OPS NORMAL. NO FAULTS & WX RADAR R/T COOLING FAN OPS NORMAL.