Service difficulty report · Adc · Boeing 767322

Difficulty date
May 11, 2023
Submitted
May 12, 2023
Operation
Air carrier
Aircraft
N676UA
Make and model
Boeing 767322
Aircraft serial
30028
Aircraft time
76,804 hours, 15,181 cycles
Part
Adc
Part number
4040800916
Part serial
31156182
Condition
Unreliable
Location
Capt Side
Part time
66,370 hours, 12,273 cycles
Stage of operation
DE
How discovered
O
Nature of condition
O
Precautionary procedure
B

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

What was found

AIRSPEED UNRELIABLE ON CAPT SIDE REMOVED SERVICEABLE CA AIR DATA COMPUTER FOR LINE A/C 6443. MFG PREVIOUS ENTRY FOR ROB PART ENTERED IN ERROR. SHOULD HAVE BEEN F P/N 4040800-916 MFG S/N 31156182 OR A/C 6443 ADD EMP:U104806 REPLACED LH ADC REF AMM 34-12-01 OP CHECKS NORMAL. PERFOMED TEST 30 IT WAS NORMAL ROTABLE PARTS CHANGE WAS INDICATED - 1602346 VERIFIED QUICK DISCONNECT INSTALLED PARTS INFO UPDATE ONLY COMPUTER, AIR D OFF