What was found
AIR TURNBACK/DECLARED EMERGENCY, APPROACHING 10000, THE CABIN ALTITUDE WARNING HORN SOUNDED. CABIN PRESSURE SHOWED JUST UNDER 10000 / CABIN ALTITUDE WAS REGAIN IN THE MANUAL MODE. R&R NR 1 CABIN PRESSURE CONTROLLER PER MM.
- Difficulty date
- February 1, 2019
- Submitted
- February 7, 2019
- Operation
- Air carrier
- Aircraft
- N211WN
- Make and model
- Boeing 7377H4
- Aircraft serial
- 34163
- Aircraft time
- 48,376 hours, 28,522 cycles
- System (JASC)
- 2131 · Cabin Pressure Controller
- Part
- Controller
- Part number
- 8300005604
- Part serial
- 9336D
- Condition
- Faulty
- Location
- E&E Bay
- Stage of operation
- CL
- 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.