What was found
CABIN ALTITUDE WARNING HORN ACTIVATED DURING FLIGHT NEAR TOP OF DESCENT. DECLARED EMERGENCY. R & R THE NR 2 ENGINE HIGH STAGE REGULATOR IAW AMM.
- Difficulty date
- March 15, 2018
- Submitted
- March 20, 2018
- Operation
- Air carrier
- Aircraft
- N404WN
- Make and model
- Boeing 7377H4
- Aircraft serial
- 27892
- Aircraft time
- 58,979 hours, 34,476 cycles
- System (JASC)
- 3610 · Pneumatic Distribution System
- Part
- Regulator
- Part number
- 1074847
- Part serial
- 1122C
- Condition
- No Test
- Location
- Nr 2 Engine
- Stage of operation
- DE
- 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.