SDR IPXA2018012525880

Service difficulty report · Altimeter · Boeing 75724APF

Difficulty date: January 24, 2018
Submitted: January 26, 2018
Operation: Air carrier
Aircraft: N406UP
Make and model: Boeing 75724APF
Aircraft serial: 23728
Aircraft time: 31,408 hours, 21,503 cycles
System (JASC): 3416 · Altimeter, Barometric/Encoder
Part: Altimeter
Condition: Abnormal
Location: First Officer'S
Stage of operation: NR
How discovered: 9
Nature of condition: O
Precautionary procedure: O

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

What was found

FIRST OFFICER`S ALTIMETER IN ERROR. IT READS 33840. CAPTAIN`S ALTIMETER READS 34000. STBY ALTIMETER READS 339000. FIRST OFFICER`S ALTIMETER NORMAL WITH ALTERNATE AIR DATA SELECTED. TROUBLESHOT IAW FIM 34-12-00-815-802, FIG 103, PERFORMED FULL RANGE PITOT STATIC SYS TEST IAW MM 34-11-00-735-176, NO LEAKS NOTED . R & R THE FIRST OFFICER`S ALTIMETER & RT ADC IAW MM 34-13-01-404-004, & 34-12-01-424-006, OPS CHECKED GOOD.

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