SDR SWIA2019071246052

Service difficulty report · Sleeve · Cndair CL6002C10

Difficulty date: July 12, 2019
Submitted: July 12, 2019
Operation: Air carrier
Aircraft: N791SK
Make and model: Cndair CL6002C10
Aircraft serial: 10293
Aircraft time: 27,255 hours, 16,634 cycles
System (JASC): 2150 · Cabin Cooling System
Part: Sleeve
Condition: Leaking
Location: Ac Bay
Stage of operation: CL
How discovered: O
Nature of condition: J
Precautionary procedure: B, A

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

What was found

WHILE CLIMBING RECEIVED A LEFT BLEED DUCT WARNING AND PLANE BEGAN TO DE-PRESSURIZE. INITIATED AN EMERGENCY DESCENT. (FLT#5355) CLOSED FOUND BLEED AIR LEAK AT THE LEFT AC PACK HEAT EXCHANGER INLET SLEEVE BLOWING TOWARD BLEED LEAK DETECTION LOOPS MT141 AND MT142, WHICH WERE FLAGGED BY THE MDC. ADJUSTED THE SLEEVE AND VERIFIED NO LEAKS PRESENT. REMOVED AND REPLACED THE LT PACK HOT AIR SHUTOFF VALVE IAW AMM. NO LEAKS NOTED. OPERATIONAL CHECKS GOOD AT THIS TIME.