Service difficulty report · Adc · Boeing 7474H6F

Difficulty date
December 19, 2025
Submitted
December 22, 2025
Operation
Air carrier
Aircraft
N430GT
Make and model
Boeing 7474H6F
Aircraft serial
28434
Aircraft time
62,489 hours, 11,727 cycles
Part
Adc
Part number
4040800911
Part serial
99055710
Condition
Faulted
Location
Zone 100
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

IAS DISAGREE EICAS MSG AFTER T/O & ALT DISAGREE EICAS MSG AT 7000 FT. REMOVED AND REPLACED L/H AIR DATA COMPUTER IAW AMM 34-12-01. PITOT STATIC LEAK CHK OK IAW AMM 34-11-00. ALTIMETER SYSTEM ACCURACY TEST OK IAW AMM 34-41-00. REMOVED AND REPLACED LEFT UPPER PITOT STATIC PROBE IAW AMM 34-11-01. MAIN PITOT STATIC PROBE & PITOT STATIC LEAK CHECK GOOD IAW AMM 34-11-00. </P>)

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