What was found
LANDED DEN UNDER AMBER ALERT DUE TO A NR 1 ENGINE COWL ANTI-ICE WARNING LIGHT, WHICH CAUSED THE CREW TO SHUT DOWN THE ENGINE. PRESSURE SWITCH 21SN41-52 FAILED. MAINTENANCE REPLACED PRESSURE SWITCH, OPS CHECKS NORMAL.
- Difficulty date
- June 30, 2002
- Submitted
- July 9, 2002
- Operation
- Air carrier
- Aircraft
- N353UA
- Make and model
- Boeing 737322
- Aircraft serial
- 24321
- Aircraft time
- 41,332 hours, 22,328 cycles
- Engine
- Ge CFM56*
- System (JASC)
- 3020 · Air Intake Anti/De-Ice System
- Part
- Pressure Switch
- Part number
- 21SN4152
- Condition
- Failed
- Location
- Nr 1 Engine
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- E
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.