What was found
RT PACK LIGHT ILLUMINATED. RT PACK TEMP IS HIGH. GROUNDED - YES. FOUND R/H PACK TEMP INOP. REPLACED PACK TEMP BULB T489, AND TEMP CONTROL VALVE. ALL OPS NML. GROUND VERIFICATON SATISFACTORY. REF AMM 21-51-60 & 21-51-10.
- Difficulty date
- January 2, 2023
- Submitted
- January 3, 2023
- Operation
- Air carrier
- Aircraft
- N428AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 36353
- Aircraft time
- 24,912 hours, 7,796 cycles
- System (JASC)
- 2150 · Cabin Cooling System
- Part
- Modulating Valve
- Part number
- 3989085
- Part serial
- 21588
- Condition
- Faulted
- Location
- Right Ecs Bay
- Part time
- 30,452 hours, 9,741 cycles
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.