Service difficulty report · Altimeter · Boeing 74745E

Difficulty date
June 25, 2026
Submitted
June 25, 2026
Operation
Air carrier
Aircraft
N473MC
Make and model
Boeing 74745E
Aircraft serial
27174
Aircraft time
123,459 hours, 22,312 cycles
Part
Altimeter
Part number
LK357
Part serial
1395
Condition
Faulted
Location
Standby
Stage of operation
NR
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

FOUND INDICATORY ASSY STBY ALTM FUNCTION FAIL IAW AMM 34-13-02-24-19 & AMM 34-13-02-424-020, REV 116. REPLACED STANDBY ALTIMETER AND PFM TEST OF STANDBY ALTIMETER. RESULT WAS SATISFACTORY.

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