Service difficulty report · Warning System · Boeing 7572T7

Difficulty date
June 21, 2017
Submitted
June 30, 2017
Operation
Air carrier
Aircraft
N936FD
Make and model
Boeing 7572T7
Aircraft serial
23293
Aircraft time
89,662 hours, 32,940 cycles
Part
Warning System
Condition
False Activation
Location
Cockpit
Stage of operation
CL
How discovered
O
Nature of condition
N
Precautionary procedure
K

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

What was found

ON CLIMBOUT FROM KLAX PASSING 5000 IAS DISAGREE EICAS. CONTINUE CLIMB AND ALT DISAGREE EICAS ILUMINATED. COMPLETED QRH AND DIVERTED TO KLAX . NOTE: WORSE CASE SPLITS WERE APROXX 500' LOW ON FO SIDE VERSUS CAPT AND APPROX 15 KNOTS SLOWER ON FO SIDE AT FL230. CHECKED WITH ATC AND VERIFIED CAPT'S REPLACED NR 2 ADC STATIC WATER DRAIN LINE P/N 50014A43-6-0150 AND PERFORM PITOT STATIC PRESSURE CHK UP TO 23000" 250 KNTS AND NO LEAK FOUND ON BOTH NR 1 AND NR 2 SYSTEM FOUND NO LEAKS IN REF TO AMM 34-11-00-2, AND AMM 34-12-00-5 A/C OK FOR SERVICE.

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