SDR 2006UALA01368

Service difficulty report · Adc · Boeing 737322

Difficulty date: July 10, 2006
Submitted: July 18, 2006
Operation: Air carrier
Aircraft: N302UA
Make and model: Boeing 737322
Aircraft serial: 23643
Aircraft time: 56,071 hours, 33,085 cycles
Engine: Cfmint CFM563C1
System (JASC): 3417 · Air Data Computer
Part: Adc
Condition: Malfunctioned
Location: Nr 1
Stage of operation: TO
How discovered: O
Nature of condition: N
Precautionary procedure: C

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

What was found

REJECTED TAKEOFF AT 100 KTS DUE TO AIRSPEED INDICATOR. REPLACED NR 1 ADC. ADC REQUIRES CALIBRATION. NOT RECIEVING ARINC SIGNAL. FOUND IC U33 OF BOARD A6 FAULTY. REPLACED NR 1 ADC. FOR THE FAULTY ADC: CALIBRATED. REPLACED U33 ON A6 BOARD.