What was found
(CAN) CLIMBING THRU 13000` ASL, CABIN ALTITUDE WARNING ILLUMINATED & UNABLE TO PRESSURIZE. OXYGEN MASK USED. REQUESTED DECENT & TURNBACK. LEFT OUTFLOW FOUND TO HAVE A TEAR IN THE DIAPHRAGM. OUTFLOW VALVE REPLACED. (TC# 20190807018)
- Difficulty date
- July 31, 2019
- Submitted
- August 17, 2020
- Operation
- General aviation
- Make and model
- Beech 1900C
- Aircraft time
- 31,708 hours
- System (JASC)
- 2133 · Pressure Regulator/Outflow Valve
- Part
- Diaphragm
- Condition
- Torn
- Location
- Outflow Valve
- 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.