What was found
DURING CRUISE FL380, APPROXIMATELY ONE HOUR INTO FLIGHT, THE CABIN PRESSURE ROSE AND ALTITUDE CABIN ALT WARNING. EMERGENCY DESCENT PERFORMED. REPLACED THE NR 1 ENGINE PRSOV, RAN ENGINE PER FIM WITH NO FAULTS NOTED.
- Difficulty date
- August 23, 2016
- Submitted
- August 23, 2016
- Operation
- Air carrier
- Aircraft
- N24212
- Make and model
- Boeing 737824
- Aircraft serial
- 28772
- Aircraft time
- 58,034 hours, 20,589 cycles
- System (JASC)
- 3610 · Pneumatic Distribution System
- Part
- Shutoff Valve
- Part number
- 32145526
- Part serial
- 7864
- Condition
- Failed
- Location
- Nr 1 Engine
- 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.