SDR CALA2016122701176

Service difficulty report · Altimeter · Boeing 777222

Difficulty date: December 27, 2016
Submitted: December 28, 2016
Operation: Air carrier
Aircraft: N223UA
Make and model: Boeing 777222
Aircraft serial: 30224
Aircraft time: 62,718 hours, 14,129 cycles
System (JASC): 3416 · Altimeter, Barometric/Encoder
Part: Altimeter
Part number: A4619710101
Condition: Faulted
Location: Standby
Stage of operation: CR
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

STANDBY ALTIMETER, LOW, HIGH, STICKS, FLUCTUATES, VIBRATES, INOP, ETC.) FL 390 29.92 STBY ALTIMETER READS 530 FEET HIGHER THAN CAPT AND FO ALTIMETERS REMOVED AND REPLACED STBY ALT PER AMM 34-13-06. PERFORMED LOW RA NGE LEAK TEST PER AMM 34-11-00/501. NO LEANKS NOTED. OPS CHECK GOOD OF STBY ALT. A/C OK TO CONTINUE