What was found
FLT ALT SELECTOR SWITCH ON PRESSURIZATION PANEL INOP. CONFIRMED, STUCK AT 44 500. PULLED & RESET C/B'S. WORKED FOR A WHILE, THEN STUCK AT 32 500. REPLACED CABIN PRESS CTRL MOD. OPS CHECK GOOD. GND VERIFICATION GOOD.
- Difficulty date
- January 15, 2012
- Submitted
- January 18, 2012
- Operation
- Air carrier
- Aircraft
- N531AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35199
- Aircraft time
- 6,405 hours, 2,091 cycles
- System (JASC)
- 2130 · Cabin Pressure Control System
- Part
- Control Module
- Part number
- 8243921102
- Part serial
- 99107115
- Condition
- Inoperative
- Location
- Cockpit
- Part time
- 41,279 hours, 18,371 cycles
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.