Service difficulty report · Sensor · Boeing 777222

Difficulty date
February 5, 2025
Submitted
February 7, 2025
Operation
Air carrier
Aircraft
N223UA
Make and model
Boeing 777222
Aircraft serial
30224HARM
Aircraft time
91,999 hours, 10,956 cycles
Part
Sensor
Part number
8102303
Part serial
9909024
Condition
Faulted
Location
Rh Pack
Part time
769,765 hours, 708,268 cycles
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

PACK FCV LWR R EICAS STATUS THE LOWER RIGHT PACK FLOW CONTROL VALVES (FCV) IS NOT IN THE COM MANDED POSITION. FIM TASK REF : FIM TASK REFERENCE NOT FOUND CMC MSG# 2124304 FLIGHT STATUS: L INTERMITTENCE CODE: M PH: CLIMB NARRATIVE: CABIN TEMPERATURE CONTR OLLER (R CHAN2) RH LWR FCSOV REPLACED IAW AMM 21-51-02 & RH PACK FLOW SENSOR REPLACED IAW AMM 21-51-03 (SPARE FLOW SENSOR ROBBED FROM A/C 2473). AIR SYSTEM AIR ON TEST C/OUT PASSED & ENG IDLE RUN C/OUT NO FAULT MSG NOTED.