SDR DXTA200300055

Service difficulty report · Acm · Cessna 750

Difficulty date: June 27, 2003
Submitted: June 30, 2003
Operation: Air carrier
Aircraft: N983QS
Make and model: Cessna 750
Aircraft serial: 7500083
Aircraft time: 3,618 hours, 2,430 cycles
System (JASC): 2120 · Air Distribution System
Part: Acm
Condition: Seized
Location: Cabin Cooling
Stage of operation: TX
How discovered: O
Nature of condition: B
Precautionary procedure: H

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

What was found

AT TEB DURING GROUND OPS OF APU NORMAL APU BLEED SELECTED WITH NORMAL APU EGT TEMPS, ISOLATION VALVE OPEN, PILOTS NOTED GRINDING NOISE. ACM SEIZED CAUSING CABIN TO FILL WITH SMOKE. REMOVED SEIZED FORWARD ACM AND INSTALLED OVERHAULED UNIT, OPS & LEAK CHECK GOOD ALL WORK PERFORMED IAW CE750 MM CHAPTER 21-51-00.

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