SDR SCNA97161

Service difficulty report · Duct · Boeing 7272J4

Difficulty date: May 8, 1997
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N288SC
Make and model: Boeing 7272J4
Aircraft serial: 20765
System (JASC): 2120 · Air Distribution System
Part: Duct
Part number: 65609664
Condition: Cracked
Location: Lt Pack
Stage of operation: CL
Nature of condition: O
Precautionary procedure: A

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

What was found

LEFT PACK UNABLE TO MAINTAIN CABIN PRESSURE AT FL 240, DESCENDED TO 10,000 FEET AND CABIN PRESSURE STABILIZED. AIRCRAFT DIVERTED TO ALTERNATE AIRPORT. FOUND CRACKED AIR CONDITIONING DUCT AND TWO LEAKING CHECK VALVES. REPLACED DUCT AND CHECK VALVES, PRESSURIZATION CHECKED NORMAL.

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