OpenAirDocs.org

SDR SWIA202505140012

Open the Markdown

Service difficulty report · A/C Pack · Cndair CL6002B19

FAA SDR system

Difficulty date
May 12, 2025
Submitted
May 14, 2025
Operation
Air carrier
Aircraft
N920EV
Make and model
Cndair CL6002B19
Aircraft serial
7810
Aircraft time
41,692 hours, 40,966 cycles
System (JASC)
2150 · Cabin Cooling System
Part
A/C Pack
Condition
Overtemp
Location
Zone 100
Stage of operation
DE
How discovered
O
Nature of condition
M, B
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

D: DURING DESCENT NOTICED A STRANGE SMELL IN THE COCKPIT AS WELL AS A SMALL PUFF OF SMOKE OUT OF THE FO?S AIR VENT. AFTER LANDING WE CHECKED THE ECS PAGE AND SAW THE LEFT PACK UNCONTROLLABLY INCREASING. WE SHUT DOWN THE LEFT PACK AROUND 110 C. PACK COOLED DOWN TO 60 C AND WE TURNED IT BACK ON WITH THE TEMPERATURE SET AS LOW AS POSSIBLE AND THE PACK TEMPERATURE CONTINUED TO INCREASE UNCONTROLLABLY.C: MEL 21-51-1BCAT C DUE 05/22/25**SMOD APPROVAL REQUIRED FOR RTS**DURING DESCENT NOTICED A STRANGE SMELL IN THE COCKPIT AS WELL AS A SMALL PUFF OF SMOKE OUT OF THE FO€™S AIR VENT. AFTER LANDING WE CHECKED THE ECS PAGE AND SAW THE LEFT PACK UNCONTROLLABLY INCREASING. WE SHUT DOWN THE LEFT PACK AROUND 110 C. PACK COOLED DOWN TO 60 C AND WE TURNED IT BACK ON WITH THE TEMPERATURE SET AS LOW AS POSSIBLE AND THE PACK TEMPERATURE CONTINUED TO INCREASE UNCONTROLLABLY. (FLIGHT 5023 - FILED CLOSED)MAY 12, 2025 STATION: DDC--DEFERRED PER MEL 21-51-1BLOCATION: AIR-CONDITIONING PACK - LEFT PACK INOPERATIVENO MAINTENANCE ACTION REQUIRED MAY 13, 2025 STATION: COS -- SEE CAMP 30133654 AND CP 30133674 FOR MX ACTION ON L/H ACM REPLACEMENT, L/H HEAT EXHANGER REPLACEMENT. OPS CHECK GOOD AT THIS TIME. REMOVED DMI PLACARD .