As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT#2847, LGA-TPA. (AIRCRAFPT PERFORMED AN AIR TURN BACK TO LGA) 'WEATHER RADAR PAINTING RETURNS AT TILT 10 DEGREES WITH NO WEATHER- GAIN WAS MANIPULATED WITH NO SUCCESS; REMOVED AND REPLACED WX RADAR TRANSCIEVER ( 1SQ1) PER AMM 34-41-33. OPS CHECK GOOD.'