SDR DALA2017100407320

Service difficulty report · Adc · Boeing 757232

Difficulty date: October 3, 2017
Submitted: October 6, 2017
Operation: Air carrier
Aircraft: N678DL
Make and model: Boeing 757232
Aircraft serial: 25983
Aircraft time: 80,123 hours, 35,669 cycles
System (JASC): 3417 · Air Data Computer
Part: Adc
Condition: Malfunctioned
Location: Right
Stage of operation: IN
How discovered: 9
Nature of condition: O
Precautionary procedure: K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

DURING CLIMB OUT, ALTITUDE DISAGREE EICAS MESSAGE AT FL 280, CAPTAIN`S ALTIMETER 28,000 FT, STANBY ALTIMETER 27, 920 FT, AND FIRST OFFICER`S ALTIMETER 27, 680 FT. CTR NR 1 AUTOPILOT, ATC SHOWED FL 280 EXACTLY. TROUBLESHOT IAW FIM. REPLACED THE RT ADC. OPS CHECKED GOOD.