Service difficulty report · Unknown · Boeing 757231

Difficulty date
November 9, 2023
Submitted
November 13, 2023
Operation
Air carrier
Aircraft
N705TW
Make and model
Boeing 757231
Aircraft serial
28479
Aircraft time
94,745 hours, 23,716 cycles
Part
Unknown
Part number
UNKNOWN
Condition
Unknown
Location
Unknown
Stage of operation
IN
How discovered
O
Nature of condition
O
Precautionary procedure
K

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

What was found

SHIP 6811 - RVSM - ENROUTE FO ALTIMETER WOULD MOVE UP AND DOWN 500 FEET OFF FLAG WOULD THEN COME ON, HAPPENED EVERY 30 MINUTES. CORRECTIVE ACTION: REPLACED FO ALTIMETER PER B757 AMM 34-13. OPS CK NML.