What was found
HOT AIR DELIVERED TO CABIN EVEN WITH CABIN TEMPERATURE CONTROLS SET TO COOL. INVESTIGATION REVEALED A RUPTURED AREA OF THE RAM AIR ADAPTER ASSEMBLY DUE TO CRACKING. SUBSEQUENT HOLE IN ADAPTER ALLOWED RAM AIR TO BYPASS HEAT EXCHANGER.
- Difficulty date
- February 15, 2005
- Submitted
- February 24, 2005
- Operation
- Air carrier
- Aircraft
- N903JC
- Make and model
- Lear 55LEAR
- Aircraft serial
- 081
- Aircraft time
- 11,923 hours, 7,208 cycles
- System (JASC)
- 2160 · Cabin Temperature Control System
- Part
- Adapter
- Part number
- 54196501
- Condition
- Cracked
- Location
- Ram Air
- Part time
- 11,923 hours
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- S
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.