What was found
LT PACK CONTROL FLOW VALVE INDICATES ON, ON THE DISCRETES PAGE WHEN SWITCHED TO THE "OFF" POSITION. GROUNDED-YES. REPLACED THE LEFT PACK VALVE, PER B737-800 AMM 21-51-01. LEAK AND OPERATIONS CHECK GOOD. ETOPS GROUND VERIFICATION GOOD.
- Difficulty date
- October 20, 2020
- Submitted
- October 21, 2020
- Operation
- Air carrier
- Aircraft
- N590AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35687
- Aircraft time
- 46,862 hours, 14,051 cycles
- System (JASC)
- 2150 · Cabin Cooling System
- Part
- Control Valve
- Part number
- 3966081
- Part serial
- 2256
- Condition
- Inoperative
- Location
- Lt Acm Flow
- Part time
- 51,860 hours, 16,293 cycles
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- N
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.