What was found
PACK TRIPPED. TRIED RESETS WITH NO HELP. BOTH 'A' & 'B' CHANNELS. LOCKED NR 2 PACK VALVE PER FIM 21-61 TASK 922 CHECK FOUND PACK 2 DISCHARGE TEMP SENSOR 'B' T1613 IS BAD. PACK TEMP DISCHARGE SENSOR REPLACED.
- Difficulty date
- June 29, 2012
- Submitted
- August 17, 2012
- Operation
- Air carrier
- Aircraft
- N128UA
- Make and model
- Boeing 747422
- Aircraft serial
- 30023
- Aircraft time
- 49,339 hours, 5,814 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 2150 · Cabin Cooling System
- Part
- Sensor
- Part number
- 60B0002610
- Condition
- Malfunctioned
- Location
- A/C Pack
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.