As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MACH TRIM ILLUMINATED IN FLIGHT ALSO GPWS FAIL AND W/S FAIL, AND CAPT''S PFD INDICATION LOST: V/S , ALT IN RED ALONG WITH NO PITCH INFORMATION. APPEARED ONCE ON CLIMB TO FL 290, QRH PROC EMPLOYED 15 MIN LATER IN LEVEL FLIGHT APPEARED AGAIN CAUSING RAPID PITCH-UP MOMENT AT .73M 280 KTS IN SMOOTH FLIGHT CONDITIONS. SAME INDICATIONS BOTH TIMES X-FERRED THE A/P AND F/D AND MACH WAS NOT RE-ENGAGED. REMOVED AND REPLACED RADIO ALTIMETER TRANSCEIVER IAW AMM 34-44-01, OPS CHECK GOOD.