What was found
PREFLIGHT CHECK "PACK R " STATUS MESSAGE DISPLAYED. MAINT MESSAGE 21-22802 ACTIVE, TRIED TO CLEAN PRE HEAT EXCHANGER INLET TEMP SENSOR M21517, NO HELP, REPLACED PRIMARY HEAT EXCHANGER INLET TEMP SENSOR OK.
- Difficulty date
- August 5, 2013
- Submitted
- August 8, 2013
- Operation
- Air carrier
- Aircraft
- N217UA
- Make and model
- Boeing 777222
- Aircraft serial
- 30550
- Aircraft time
- 54,950 hours, 6,735 cycles
- Engine
- Pwa PW40903
- System (JASC)
- 2150 · Cabin Cooling System
- Part
- Sensor
- Condition
- Inoperative
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- J
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.