What was found
NR 2 PACK FLOW PROBLEMS, RTFL. REPLACED MASS AIR FLOW SENSOR.
- Difficulty date
- January 10, 2013
- Submitted
- February 1, 2013
- Operation
- Air carrier
- Aircraft
- N117UA
- Make and model
- Boeing 747422
- Aircraft serial
- 28810
- Aircraft time
- 57,189 hours, 6,843 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 2150 · Cabin Cooling System
- Part
- Sensor
- Part number
- 9486922
- Part serial
- 326
- Condition
- Failed
- Location
- Mass Air Flow
- Stage of operation
- CR
- 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.