SDR CA110926006

Service difficulty report · Gps · Beech 200BEECH

Difficulty date: September 22, 2011
Submitted: January 23, 2013
Operation: Air carrier
Make and model: Beech 200BEECH
Aircraft time: 6,558 hours
Engine: Pwa PT642A
System (JASC): 3457 · Global Positioning System
Part: Gps
Part number: 6228051003
Condition: Inoperative
Stage of operation: AP
How discovered: O
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

(CAN) ON APPROACH, GPS FAILED IN VMC CONDITIONS AND FMS TURNED TO APPROACH PROFILE 10 MILES EARLY AND PARALLED TRACK. TROUBLESHOOTING CODES SHOWED ADC WAS NOT PROVIDING PROPER OR SUFFICIENT DATA AND WAS REPLACED WITH O/H UNIT, SAME PN, SN 3392. SYS GROUND CHECKED SERVICEABLE. ADC REMOVED, PN 622-8051-003, SN 3131.