SDR P5CA2015050500037

Service difficulty report · Indication Sys · Boeing 74746NF

Difficulty date: May 5, 2015
Submitted: May 6, 2015
Operation: Air carrier
Aircraft: N454PA
Make and model: Boeing 74746NF
Aircraft serial: 30812
Aircraft time: 56,530 hours, 9,192 cycles
System (JASC): 3412 · Outside Air Temperature Indicator/Sensor
Part: Indication Sys
Condition: Malfunctioned
Stage of operation: DE
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

DURING DECENT FROM FL200, F/O VERTICAL DEVIATION INDICATOR SHOWED 4300 FT LOW WHILE CAPTAIN`S VDI SHOWED 600 FT HIGH. BOTH MARRIED UP WITH SAME INDICATION AT 140000 FEET, COMPLIED WITH AMM 34-12-00. BOTH CAPTAIN'S AND F/O`S ADC CHECKED GOOD.

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